/* ==========================================================================
   Kestrel Advisory — Showcase Landing Page
   style.css

   Table of Contents
   -----------------
   1.  Design Tokens (Custom Properties)
   2.  Google Fonts Import
   3.  Reset & Base
   4.  Typography
   5.  Layout Utilities
   6.  Navigation
   7.  Hero
   8.  About
   9.  Services
   10. Process Flow
   11. Team
   12. Case Studies
   13. Testimonials
   14. Contact & Footer
   15. "Show Brief" Curtain Overlay
   16. Keyframe Animations
   17. Scroll-Driven Animations (guarded)
   18. Responsive Breakpoints
   19. Reduced Motion

   Browser targets: Microsoft Edge (Windows), Safari (macOS)
   Cutting-edge CSS guarded with @supports where noted.
   ========================================================================== */


/* ==========================================================================
   1. Design Tokens
   ========================================================================== */

:root {
  /* --- Palette --- */
  --color-navy:             #1B2A4A;   /* Slate Navy — primary */
  --color-navy-light:       #2A3E6A;   /* Navy lightened ~15% for hover states */
  --color-navy-dark:        #111D33;   /* Navy deepened for deep surfaces */
  --color-navy-muted:       rgba(27, 42, 74, 0.08); /* Tint for subtle dividers */

  --color-ochre:            #C47D2E;   /* Amber Ochre — accent */
  --color-ochre-light:      #D8962E;   /* Ochre brightened for hover */
  --color-ochre-muted:      rgba(196, 125, 46, 0.15); /* Tint for backgrounds */
  --color-ochre-dark:       #A6651F;   /* Ochre deepened for pressed states */

  --color-linen:            #F7F4EF;   /* Linen White — neutral background */
  --color-linen-dark:       #EDE9E2;   /* Slightly deeper linen for alternates */

  --color-charcoal:         #0F1923;   /* Charcoal Ink — dark surface */
  --color-charcoal-mid:     #1A2633;   /* Slightly lighter for curtain surfaces */
  --color-charcoal-light:   #243040;   /* Card surfaces on dark sections */

  --color-white:            #FFFFFF;
  --color-text-primary:     #1B2A4A;   /* Navy for body text on light */
  --color-text-secondary:   #4A5568;   /* Muted slate for supporting text */
  --color-text-inverse:     #F7F4EF;   /* Linen on dark backgrounds */
  --color-text-muted-inv:   rgba(247, 244, 239, 0.65); /* Secondary on dark */

  /* Selection */
  --color-selection-bg:     rgba(196, 125, 46, 0.30);
  --color-selection-text:   #1B2A4A;

  /* --- Typography Scale --- */
  --font-display:    'Literata', Georgia, 'Times New Roman', serif;
  --font-body:       'Epilogue', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:       'JetBrains Mono', 'Fira Code', ui-monospace, 'Cascadia Code', 'Courier New', monospace;

  /* Size scale — uses clamp() for fluid scaling between 1280px and 1920px */
  --text-display:    clamp(3.25rem, 5.5vw, 5.5rem);     /* ~52–88px */
  --text-h1:         clamp(2.5rem, 4vw, 4rem);           /* ~40–64px */
  --text-h2:         clamp(1.875rem, 2.8vw, 2.75rem);    /* ~30–44px */
  --text-h3:         clamp(1.375rem, 1.8vw, 1.875rem);   /* ~22–30px */
  --text-h4:         clamp(1.125rem, 1.3vw, 1.375rem);   /* ~18–22px */
  --text-body-lg:    1.1875rem;   /* ~19px */
  --text-body:       1rem;        /* 16px */
  --text-small:      0.9375rem;   /* ~15px */
  --text-caption:    0.8125rem;   /* ~13px */
  --text-label:      0.75rem;     /* 12px */
  --text-mono:       0.9375rem;   /* 15px */

  /* Leading */
  --leading-display: 1.05;
  --leading-heading: 1.2;
  --leading-body:    1.65;
  --leading-tight:   1.35;

  /* Tracking */
  --tracking-tight:  -0.03em;
  --tracking-normal:  0;
  --tracking-wide:    0.06em;
  --tracking-widest:  0.12em;

  /* Font weights */
  --weight-regular:  400;
  --weight-medium:   500;
  --weight-semibold: 600;
  --weight-bold:     700;

  /* --- Spacing Scale (4px base) --- */
  --space-1:   0.25rem;   /*  4px */
  --space-2:   0.5rem;    /*  8px */
  --space-3:   0.75rem;   /* 12px */
  --space-4:   1rem;      /* 16px */
  --space-5:   1.25rem;   /* 20px */
  --space-6:   1.5rem;    /* 24px */
  --space-8:   2rem;      /* 32px */
  --space-10:  2.5rem;    /* 40px */
  --space-12:  3rem;      /* 48px */
  --space-14:  3.5rem;    /* 56px */
  --space-16:  4rem;      /* 64px */
  --space-20:  5rem;      /* 80px */
  --space-24:  6rem;      /* 96px */
  --space-32:  8rem;      /* 128px */

  /* --- Grid --- */
  --grid-max-width:  1440px;
  --grid-max-text:   1200px;
  --grid-columns:    12;
  --grid-gap:        var(--space-8);
  --container-pad:   clamp(var(--space-6), 4vw, var(--space-16));

  /* --- Borders & Radii --- */
  --radius-sm:    4px;
  --radius-md:    8px;
  --radius-lg:    16px;
  --radius-xl:    24px;
  --radius-full:  9999px;

  /* --- Shadows --- */
  --shadow-sm:    0 1px 3px rgba(15, 25, 35, 0.08), 0 1px 2px rgba(15, 25, 35, 0.04);
  --shadow-md:    0 4px 16px rgba(15, 25, 35, 0.10), 0 2px 6px rgba(15, 25, 35, 0.06);
  --shadow-lg:    0 12px 40px rgba(15, 25, 35, 0.14), 0 4px 12px rgba(15, 25, 35, 0.08);
  --shadow-xl:    0 24px 64px rgba(15, 25, 35, 0.18), 0 8px 24px rgba(15, 25, 35, 0.10);
  --shadow-ochre: 0 8px 32px rgba(196, 125, 46, 0.25);

  /* --- Transitions --- */
  /* ease-out-quart: confident, fast deceleration — no mechanical feel */
  --ease-out-quart:    cubic-bezier(0.25, 1, 0.5, 1);
  /* ease-out-expo: theatrical snap with gentle landing */
  --ease-out-expo:     cubic-bezier(0.16, 1, 0.3, 1);

  --transition-fast:     140ms cubic-bezier(0.25, 1, 0.5, 1);
  --transition-base:     210ms cubic-bezier(0.25, 1, 0.5, 1);
  --transition-slow:     340ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-curtain:  680ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-card:     260ms cubic-bezier(0.25, 1, 0.5, 1);

  /* --- Z-index ladder --- */
  --z-base:    0;
  --z-raised:  10;
  --z-nav:     100;
  --z-curtain: 1000;
}


/* ==========================================================================
   2. Google Fonts
   Loaded via <link> in the document <head> — faster than @import.
   System-font stacks in --font-* variables are the fallback if offline.
   ========================================================================== */

/* ==========================================================================
   3. Reset & Base
   ========================================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 100%; /* 16px base */
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  /* proximity snapping — snaps when near a section boundary, doesn't trap */
  scroll-snap-type: y proximity;
  @media (prefers-reduced-motion: reduce) {
    scroll-behavior: auto;
    scroll-snap-type: none;
  }
}

body {
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: var(--weight-regular);
  line-height: var(--leading-body);
  color: var(--color-text-primary);
  background-color: var(--color-linen);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img,
picture,
video,
canvas,
svg {
  display: block;
  max-width: 100%;
}

input,
button,
textarea,
select {
  font: inherit;
}

p,
h1,
h2,
h3,
h4,
h5,
h6 {
  overflow-wrap: break-word;
}

ul[role="list"],
ol[role="list"] {
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  cursor: pointer;
  background: none;
  border: none;
}

::selection {
  background-color: var(--color-selection-bg);
  color: var(--color-selection-text);
}

/* Global focus-visible — keyboard nav for all interactive elements */
:focus-visible {
  outline: 2px solid var(--color-ochre);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Suppress focus ring for mouse users while keeping it for keyboard */
:focus:not(:focus-visible) {
  outline: none;
}

/* Smooth scrolling via class — toggled by JS */
html.js-smooth-scroll {
  scroll-behavior: smooth;
}


/* ==========================================================================
   4. Typography
   ========================================================================== */

/* --- Semantic element defaults --- */

h1, .h1 {
  font-family: var(--font-display);
  font-size: var(--text-h1);
  font-weight: var(--weight-bold);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-tight);
  color: var(--color-navy);
}

h2, .h2 {
  font-family: var(--font-display);
  font-size: var(--text-h2);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-tight);
  color: var(--color-navy);
}

h3, .h3 {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-tight);
  color: var(--color-navy);
}

h4, .h4 {
  font-family: var(--font-body);
  font-size: var(--text-h4);
  font-weight: var(--weight-semibold);
  line-height: var(--leading-tight);
  color: var(--color-navy);
}

p {
  max-width: 72ch;
}

/* --- Type utility classes --- */

.text-display {
  font-family: var(--font-display);
  font-size: var(--text-display);
  font-weight: var(--weight-bold);
  line-height: var(--leading-display);
  letter-spacing: var(--tracking-tight);
}

.text-body-lg {
  font-size: var(--text-body-lg);
  line-height: var(--leading-body);
}

.text-small {
  font-size: var(--text-small);
}

.text-caption {
  font-size: var(--text-caption);
  line-height: var(--leading-tight);
}

.text-label {
  font-family: var(--font-body);
  font-size: var(--text-label);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
}

.text-mono {
  font-family: var(--font-mono);
  font-size: var(--text-mono);
}

/* Colour utility classes */
.text-navy    { color: var(--color-navy); }
.text-ochre   { color: var(--color-ochre); }
.text-linen   { color: var(--color-linen); }
.text-inverse { color: var(--color-text-inverse); }
.text-muted   { color: var(--color-text-secondary); }
.text-muted-inv { color: var(--color-text-muted-inv); }

/* Display heading used in hero — italic accent word via <em> */
.text-display em {
  font-style: italic;
  color: var(--color-ochre);
}

/* Inverse headings — when on dark backgrounds */
.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4,
.section--dark .h1,
.section--dark .h2,
.section--dark .h3,
.section--dark .h4 {
  color: var(--color-text-inverse);
}

.section--dark p {
  color: var(--color-text-muted-inv);
}

/* Eyebrow / overline label — used above section headings */
.eyebrow {
  display: block;
  font-family: var(--font-body);
  font-size: var(--text-label);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-ochre);
  margin-bottom: var(--space-3);
}

/* Ochre underline rule used on section headings */
.heading-rule {
  position: relative;
  padding-bottom: var(--space-4);
}

.heading-rule::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 3rem;
  height: 2px;
  background-color: var(--color-ochre);
  border-radius: var(--radius-full);
}

/* Centred variant */
.heading-rule--center::after {
  left: 50%;
  transform: translateX(-50%);
}

/* Inverse variant — for dark section backgrounds */
.heading-rule--inv {
  color: var(--color-text-inverse);
}


/* ==========================================================================
   5. Layout Utilities
   ========================================================================== */

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--grid-max-width);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.container--text {
  max-width: var(--grid-max-text);
}

/* --- Section wrappers --- */
.section {
  padding-block: var(--space-24);
  scroll-snap-align: start;
  scroll-snap-stop: normal;
}

.section--sm {
  padding-block: var(--space-16);
}

.section--lg {
  padding-block: var(--space-32);
}

/* Section alternation */
.section--linen {
  background-color: var(--color-linen);
}

.section--linen-dark {
  background-color: var(--color-linen-dark);
}

.section--navy {
  background-color: var(--color-navy);
}

.section--charcoal {
  background-color: var(--color-charcoal);
}

/* Mark dark sections so child selectors can inherit */
.section--navy,
.section--charcoal {
  color: var(--color-text-inverse);
}

/* --- Grid utilities --- */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--grid-gap);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--grid-gap);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--grid-gap);
}

.grid-5 {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-6);
}

/* --- Flex utilities --- */
.flex        { display: flex; }
.flex-col    { flex-direction: column; }
.items-start { align-items: flex-start; }
.items-center{ align-items: center; }
.items-end   { align-items: flex-end; }
.justify-between { justify-content: space-between; }
.justify-center  { justify-content: center; }
.gap-4       { gap: var(--space-4); }
.gap-6       { gap: var(--space-6); }
.gap-8       { gap: var(--space-8); }

/* --- Stagger helpers for grid children (used with JS scroll trigger fallback) --- */
.stagger-grid > *:nth-child(1)  { animation-delay: 0ms; }
.stagger-grid > *:nth-child(2)  { animation-delay: 80ms; }
.stagger-grid > *:nth-child(3)  { animation-delay: 160ms; }
.stagger-grid > *:nth-child(4)  { animation-delay: 240ms; }
.stagger-grid > *:nth-child(5)  { animation-delay: 320ms; }
.stagger-grid > *:nth-child(6)  { animation-delay: 400ms; }
.stagger-grid > *:nth-child(7)  { animation-delay: 480ms; }
.stagger-grid > *:nth-child(8)  { animation-delay: 560ms; }
.stagger-grid > *:nth-child(9)  { animation-delay: 640ms; }

/* --- CTA Buttons --- */
/*
  Classes used:
    .btn            — base reset + shared geometry
    .btn--primary   — ochre fill, navy text
    .btn--outline   — navy border, navy text, fills on hover
    .btn--ghost     — text-only with underline sweep
*/

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  font-family: var(--font-body);
  font-size: var(--text-small);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition:
    background-color var(--transition-base),
    color var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-fast);
  white-space: nowrap;
  cursor: pointer;
  text-decoration: none;
}

.btn:active {
  transform: translateY(1px);
}

.btn--primary {
  background-color: var(--color-ochre);
  color: var(--color-white);
  border: 2px solid var(--color-ochre);
}

.btn--primary:hover {
  background-color: var(--color-ochre-light);
  border-color: var(--color-ochre-light);
  box-shadow: var(--shadow-ochre);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-navy);
  border: 2px solid var(--color-navy);
}

.btn--outline:hover {
  background-color: var(--color-navy);
  color: var(--color-linen);
}

/* Outline variant on dark backgrounds */
.btn--outline-inv {
  background-color: transparent;
  color: var(--color-linen);
  border: 2px solid rgba(247, 244, 239, 0.5);
}

.btn--outline-inv:hover {
  background-color: rgba(247, 244, 239, 0.1);
  border-color: var(--color-linen);
}

/* Ghost — underline sweep via pseudo-element */
.btn--ghost {
  padding-inline: 0;
  padding-block: var(--space-1);
  background: transparent;
  border: none;
  color: var(--color-ochre);
  position: relative;
  letter-spacing: var(--tracking-normal);
  text-transform: none;
  font-size: var(--text-body);
}

.btn--ghost::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-ochre);
  transition: width var(--transition-base);
}

.btn--ghost:hover::after {
  width: 100%;
}


/* ==========================================================================
   6. Navigation
   Classes: .nav, .nav__inner, .nav__logo, .nav__links, .nav__link,
            .nav__cta, .nav--scrolled, .nav__link--active
   ========================================================================== */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  transition: background-color var(--transition-base), box-shadow var(--transition-base);
  padding-block: var(--space-5);
}

/* Scrolled state — applied by JS when page scrolls past hero */
.nav--scrolled {
  background-color: rgba(247, 244, 239, 0.97);
  box-shadow: var(--shadow-sm);
  padding-block: var(--space-3);
  /* Safari-compatible backdrop blur guard */
  -webkit-backdrop-filter: blur(8px);
}

@supports (backdrop-filter: blur(8px)) {
  .nav--scrolled {
    background-color: rgba(247, 244, 239, 0.90);
    backdrop-filter: blur(8px);
  }
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--grid-max-width);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.nav__logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-tight);
  color: var(--color-linen);
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.nav--scrolled .nav__logo {
  color: var(--color-navy);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}

.nav__link {
  font-size: var(--text-small);
  font-weight: var(--weight-medium);
  color: rgba(247, 244, 239, 0.85);
  position: relative;
  padding-bottom: 2px;
  transition: color var(--transition-fast);
  text-decoration: none;
}

.nav--scrolled .nav__link {
  color: var(--color-text-secondary);
}

/* Underline sweep on hover */
.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-ochre);
  border-radius: var(--radius-full);
  transition: width var(--transition-base);
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-linen);
}

.nav--scrolled .nav__link:hover,
.nav--scrolled .nav__link--active {
  color: var(--color-navy);
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

.nav__cta {
  margin-left: var(--space-4);
}

/* Show Brief — persistent pill in nav */
.nav__brief-trigger {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  background-color: var(--color-ochre-muted);
  border: 1px solid rgba(196, 125, 46, 0.4);
  border-radius: var(--radius-full);
  font-size: var(--text-label);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-ochre);
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast);
  cursor: pointer;
}

.nav__brief-trigger:hover {
  background-color: var(--color-ochre);
  border-color: var(--color-ochre);
  color: var(--color-white);
}

/* The small ◆ icon prefix */
.nav__brief-trigger .icon-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: currentColor;
  flex-shrink: 0;
}


/* ==========================================================================
   7. Hero
   Classes: .hero, .hero__bg, .hero__bg-geo, .hero__content,
            .hero__eyebrow, .hero__heading, .hero__subline, .hero__actions,
            .hero__scroll-cue
   ========================================================================== */

.hero {
  position: relative;
  min-height: 100svh;
  min-height: 100vh; /* Fallback for browsers without svh */
  display: flex;
  align-items: center;
  background-color: var(--color-charcoal);
  overflow: hidden;
  scroll-snap-align: start;
  scroll-snap-stop: normal;
}

/* Geometric SVG background layer — absolute fill, pointer-events none */
.hero__bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

/* Subtle radial gradient overlay on the charcoal to add depth */
/* --hero-glow-y is animated via @property in section 20 (overdrive) */
.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  --hero-glow-y: 40%;
  background:
    radial-gradient(ellipse 70% 70% at 70% var(--hero-glow-y), rgba(27, 42, 74, 0.45) 0%, transparent 70%),
    radial-gradient(ellipse 40% 50% at 20% 80%, rgba(196, 125, 46, 0.08) 0%, transparent 60%);
}

/* Inline SVG geometric / data-flow pattern — rendered by JS into .hero__bg */
.hero__bg-geo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.18;
}

/* Grid of dots via repeating-radial-gradient — pure CSS, no image dependency */
.hero__bg-grid {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(247, 244, 239, 0.35) 1px, transparent 1px);
  background-size: 48px 48px;
  background-position: center center;
  opacity: 0.5;
}

/* Diagonal accent line — decorative */
.hero__bg-line {
  position: absolute;
  top: 0;
  right: 15%;
  width: 1px;
  height: 100%;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    rgba(196, 125, 46, 0.3) 30%,
    rgba(196, 125, 46, 0.5) 50%,
    rgba(196, 125, 46, 0.3) 70%,
    transparent 100%
  );
}

.hero__content {
  position: relative;
  z-index: var(--z-raised);
  max-width: var(--grid-max-width);
  margin-inline: auto;
  padding-inline: var(--container-pad);
  padding-block: var(--space-32) var(--space-24);
  width: 100%;
}

.hero__eyebrow {
  font-family: var(--font-body);
  font-size: var(--text-label);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-ochre);
  margin-bottom: var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.hero__eyebrow::before {
  content: '';
  display: block;
  width: 2rem;
  height: 1px;
  background-color: var(--color-ochre);
  flex-shrink: 0;
}

.hero__heading {
  font-family: var(--font-display);
  font-size: var(--text-display);
  font-weight: var(--weight-bold);
  line-height: var(--leading-display);
  letter-spacing: var(--tracking-tight);
  color: var(--color-linen);
  max-width: 16ch;
  margin-bottom: var(--space-8);
}

/* Ochre-coloured accent within the heading */
.hero__heading .accent {
  color: var(--color-ochre);
  font-style: italic;
}

.hero__subline {
  font-size: var(--text-body-lg);
  line-height: var(--leading-body);
  color: var(--color-text-muted-inv);
  max-width: 52ch;
  margin-bottom: var(--space-12);
}

.hero__tagline {
  font-family: var(--font-display);
  font-size: var(--text-h4);
  font-style: italic;
  color: rgba(247, 244, 239, 0.5);
  margin-bottom: var(--space-4);
  letter-spacing: 0.01em;
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  flex-wrap: wrap;
}

/* Scroll cue — animated chevron at bottom-centre */
.hero__scroll-cue {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: rgba(247, 244, 239, 0.4);
  font-size: var(--text-caption);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  z-index: var(--z-raised);
  animation: scroll-cue-pulse 2s ease-in-out infinite;
}

.hero__scroll-cue svg {
  width: 20px;
  height: 20px;
}


/* ==========================================================================
   8. About
   Classes: .about, .about__intro, .about__body, .about__columns,
            .about__column, .about__stat-row, .about__stat
   ========================================================================== */

.about {
  /* linen background inherited from .section--linen */
}

.about,
.services {
  scroll-snap-align: none;
}

.about__intro {
  max-width: 64ch;
  margin-bottom: var(--space-16);
}

.about__intro p {
  font-size: var(--text-body-lg);
  line-height: var(--leading-body);
  color: var(--color-text-secondary);
  margin-top: var(--space-5);
}

.about__columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-12);
  margin-top: var(--space-16);
}

.about__column h4 {
  color: var(--color-navy);
  margin-bottom: var(--space-3);
  position: relative;
  padding-bottom: var(--space-4);
}

.about__column h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 2rem;
  height: 2px;
  background-color: var(--color-ochre);
  border-radius: var(--radius-full);
}

.about__column p {
  color: var(--color-text-secondary);
  font-size: var(--text-small);
  line-height: var(--leading-body);
}

.about__column p + p {
  margin-top: var(--space-3);
}

/* Stats row */
.about__stat-row {
  display: flex;
  gap: var(--space-16);
  margin-top: var(--space-16);
  padding-top: var(--space-16);
  border-top: 1px solid var(--color-navy-muted);
}

.about__stat {}

.about__stat-number {
  font-family: var(--font-display);
  font-size: var(--text-h1);
  font-weight: var(--weight-bold);
  line-height: 1;
  color: var(--color-ochre);
  letter-spacing: var(--tracking-tight);
}

.about__stat-label {
  font-size: var(--text-small);
  color: var(--color-text-secondary);
  margin-top: var(--space-2);
}


/* ==========================================================================
   9. Services
   Classes: .services, .services__grid, .service-card,
            .service-card__icon, .service-card__title, .service-card__body
   ========================================================================== */

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-12);
}

.service-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-linen-dark);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transition:
    transform var(--transition-card),
    box-shadow var(--transition-card),
    border-color var(--transition-card);
  position: relative;
  overflow: hidden;
}

/* Ochre accent bar on top, revealed on hover */
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background-color: var(--color-ochre);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.service-card__icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-ochre-muted);
  border-radius: var(--radius-md);
  color: var(--color-ochre);
  flex-shrink: 0;
}

.service-card__icon svg {
  width: 22px;
  height: 22px;
}

.service-card__title {
  font-family: var(--font-body);
  font-size: var(--text-h4);
  font-weight: var(--weight-semibold);
  color: var(--color-navy);
  line-height: var(--leading-tight);
}

.service-card__body {
  font-size: var(--text-small);
  color: var(--color-text-secondary);
  line-height: var(--leading-body);
  flex: 1;
}


.services__expand-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-small);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-navy);
  background: transparent;
  border: 1px solid rgba(27, 42, 74, 0.3);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-6);
  cursor: pointer;
  margin-top: var(--space-8);
  transition: border-color 0.2s, background 0.2s;
}

.services__expand-toggle:hover {
  border-color: var(--color-navy);
  background: rgba(27, 42, 74, 0.04);
}

.services__expand-toggle svg {
  transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

.services__expand-toggle[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

.services__extra[hidden] {
  display: none;
}


/* ==========================================================================
   10. Process Flow
   Classes: .process, .process__flow, .process__step, .process__step-number,
            .process__step-label, .process__step-desc, .process__connector,
            .process__highlight-bar, .process__callout
   ========================================================================== */

.process {
  /* navy background — dark section */
}

.process__intro {
  max-width: 52ch;
  margin-bottom: var(--space-16);
}

.process__flow {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

/* Vertical spine — connects all steps */
.process__spine {
  position: absolute;
  left: 22px; /* Aligns with centre of step number bubble */
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(
    to bottom,
    var(--color-ochre) 0%,
    rgba(196, 125, 46, 0.3) 100%
  );
  z-index: 0;
}

.process__step {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: var(--space-6);
  align-items: start;
  padding-block: var(--space-6);
  position: relative;
  z-index: 1;
}

.process__step:first-child { padding-top: 0; }
.process__step:last-child  { padding-bottom: 0; }

.process__step-number {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--color-ochre);
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: var(--text-small);
  font-weight: var(--weight-bold);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  z-index: 2;
  box-shadow: 0 0 0 4px var(--color-navy);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.process__step:hover .process__step-number {
  transform: scale(1.1);
  box-shadow: 0 0 0 4px var(--color-navy), 0 0 0 6px rgba(196, 125, 46, 0.4);
}

/* Gate steps — human checkpoint markers */
.process__step--gate .process__step-number {
  background-color: var(--color-charcoal);
  border: 2px solid var(--color-ochre);
  color: var(--color-ochre);
}

.process__step-content {}

.process__step-label {
  font-family: var(--font-body);
  font-size: var(--text-h4);
  font-weight: var(--weight-semibold);
  color: var(--color-text-inverse);
  margin-bottom: var(--space-2);
  cursor: pointer;
}

.process__step-role {
  font-size: var(--text-label);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-ochre);
  margin-bottom: var(--space-2);
}

.process__step-desc {
  font-size: var(--text-small);
  color: var(--color-text-muted-inv);
  line-height: var(--leading-body);
  max-width: 56ch;
}

/* Process accordion */
.process__step-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.35s cubic-bezier(0.25, 1, 0.5, 1);
  overflow: hidden;
}

.process__step-body.is-open {
  grid-template-rows: 1fr;
}

.process__step-body > * {
  min-height: 0;
  overflow: hidden;
}

.process__step-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 1px solid rgba(196, 125, 46, 0.3);
  border-radius: 50%;
  background: transparent;
  color: var(--color-ochre);
  cursor: pointer;
  flex-shrink: 0;
  transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1), border-color 0.2s;
  margin-top: var(--space-2);
  position: relative;
}

/* Extend tap target to 44×44px without changing visual size */
.process__step-toggle::before {
  content: '';
  position: absolute;
  inset: -8px;
}

.process__step-toggle[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

.process__step-toggle svg {
  transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

.process__step-toggle:hover {
  border-color: var(--color-ochre);
}

/* Ochre accent inline — for key terms within prose */
.ochre { color: var(--color-ochre); }

/* Docket callout card */
.docket-callout {
  margin-top: var(--space-6);
  padding: var(--space-5) var(--space-6);
  background: rgba(196, 125, 46, 0.08);
  border: 1px solid rgba(196, 125, 46, 0.25);
  border-radius: var(--radius-md);
}

.docket-callout__name {
  font-family: var(--font-mono);
  font-size: var(--text-small);
  color: var(--color-ochre);
  font-weight: var(--weight-semibold);
  margin-bottom: var(--space-2);
}

.docket-callout__desc {
  font-size: var(--text-small);
  color: var(--color-text-muted-inv);
  line-height: var(--leading-body);
  margin: 0;
}

/* Highlight callout boxes — for key differentiators */
.process__callout {
  grid-column: 2;
  background-color: var(--color-charcoal-light);
  border: 1px solid rgba(196, 125, 46, 0.28);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-6);
  margin-top: var(--space-3);
}

.process__callout p {
  font-size: var(--text-small);
  color: var(--color-text-muted-inv);
  line-height: var(--leading-tight);
  margin: 0;
}

.process__callout strong {
  color: var(--color-ochre);
  font-weight: var(--weight-semibold);
}

/* Two-column layout: flow on left, callouts panel on right at 1440px */
.process__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: start;
}

.process__key-facts {
  background-color: var(--color-charcoal);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  position: sticky;
  top: calc(80px + var(--space-8));
}

.process__key-facts h4 {
  color: var(--color-text-inverse);
  font-size: var(--text-h4);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid rgba(247, 244, 239, 0.1);
}

.process__fact {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding-block: var(--space-4);
  border-bottom: 1px solid rgba(247, 244, 239, 0.06);
}

.process__fact:last-child {
  border-bottom: none;
}

.process__fact-label {
  font-size: var(--text-label);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-ochre);
}

.process__fact-value {
  font-size: var(--text-small);
  color: var(--color-text-muted-inv);
  line-height: var(--leading-body);
}


/* ==========================================================================
   10b. Continuous Improvement (CI narrative)
   Classes: .ci, .ci__nodes, .ci__node, .ci__node-indicator, .ci__node-num,
            .ci__node-rule, .ci__node-desc, .ci__node-desc--rules,
            .ci__artefact-chip, .ci__capstone, .ci__capstone-rule,
            .ci__capstone-text, .ci__pullquote, .ci__pullquote-text
   ========================================================================== */

.ci {
  border-top: 2px solid var(--color-ochre);
}

/* Heading row — heading + expand-all right-aligned */
.ci__heading-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.ci__heading-row .heading-rule {
  margin: 0;
}

/* "Read the full account" control */
.ci__expand-all {
  flex-shrink: 0;
  background: transparent;
  border: none;
  padding: 0;
  font-family: var(--font-body);
  font-size: var(--text-label);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-ochre);
  cursor: pointer;
  transition: color 0.2s;
  line-height: 1;
  white-space: nowrap;
  /* Align baseline with h2 bottom edge */
  padding-bottom: 2px;
}

.ci__expand-all:hover {
  color: var(--color-ochre-light);
}

/* Node list */
.ci__nodes {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

/* Individual node — indicator + content side by side */
.ci__node {
  display: flex;
  gap: var(--space-6);
  align-items: flex-start;
}

/* Step indicator: monospace numeral + 24px hairline */
.ci__node-indicator {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
  padding-top: 2px; /* optical alignment with label cap-height */
}

.ci__node-num {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  color: var(--color-ochre);
  line-height: 1;
  white-space: nowrap;
}

.ci__node-rule {
  display: inline-block;
  width: 24px;
  height: 1px;
  background-color: var(--color-ochre-muted);
  flex-shrink: 0;
}

/* Node body text */
.ci__node-desc {
  font-family: var(--font-body);
  font-size: var(--text-body);
  color: var(--color-text-muted-inv);
  line-height: var(--leading-body);
  margin: var(--space-4) 0 0;
}

/* Three-rules inline sequence — mono, ochre, middot-separated */
.ci__node-desc--rules {
  font-family: var(--font-mono);
  font-size: var(--text-small);
  color: var(--color-ochre);
  margin-top: var(--space-4);
}

/* Artefact chip — inline, presentational only */
.ci__artefact-chip {
  display: inline-block;
  background: var(--color-charcoal-light);
  border: 1px solid var(--color-ochre-muted);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: var(--text-caption);
  color: var(--color-ochre-light);
  padding: 2px 8px;
  white-space: nowrap;
}

/* Capstone — full width, no step indicator */
.ci__capstone {
  margin-top: var(--space-12);
}

.ci__capstone-rule {
  border: none;
  border-top: 1px solid var(--color-ochre-muted);
  margin: 0 0 var(--space-12);
}

.ci__capstone-text {
  font-family: var(--font-display);
  font-size: var(--text-h4);
  color: var(--color-text-inverse);
  line-height: var(--leading-heading);
  margin: 0;
}

/* Pull-quote */
.ci__pullquote {
  margin-top: var(--space-12);
  margin-left: var(--space-8);
  padding-block: var(--space-6);
  border-left: 3px solid var(--color-ochre);
  padding-left: var(--space-6);
}

.ci__pullquote-text {
  font-family: var(--font-display);
  font-size: var(--text-body-lg);
  font-style: italic;
  color: var(--color-text-muted-inv);
  line-height: var(--leading-body);
  margin: 0;
}

/* Mobile adjustments */
@media (max-width: 640px) {
  .ci__node {
    flex-direction: column;
    gap: var(--space-2);
  }

  .ci__node-indicator {
    padding-top: 0;
  }

  .ci__artefact-chip {
    display: block;
    margin-top: var(--space-2);
    width: fit-content;
    max-width: 100%;
    white-space: normal;
    word-break: break-word;
  }

  .ci__pullquote {
    margin-left: var(--space-4);
  }
}

/* ==========================================================================
   11. Team
   Classes: .team, .team__featured-grid, .team__secondary-grid,
            .team-card, .team-card--featured, .team-card--secondary,
            .team-card__portrait, .team-card__name, .team-card__role,
            .team-card__bio
   ========================================================================== */

/* Leadership featured grid — 3-up */
.team__featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
  margin-top: var(--space-12);
  margin-bottom: var(--space-12);
}

/* Secondary team — 5-up tighter grid */
.team__secondary-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-6);
}

/* Base card */
.team-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
}

/* Featured card — larger, richer */
.team-card--featured {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6);
  border: 1px solid var(--color-linen-dark);
  transition: transform var(--transition-card), box-shadow var(--transition-card);
}

.team-card--featured:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

/* Portrait circle */
.team-card__portrait {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: var(--space-5);
  border: 3px solid var(--color-linen-dark);
  flex-shrink: 0;
  background-color: var(--color-linen-dark);
  position: relative;
}

.team-card--featured .team-card__portrait {
  width: 120px;
  height: 120px;
  border-color: var(--color-ochre);
  border-width: 3px;
  box-shadow: 0 0 0 5px rgba(196, 125, 46, 0.15);
}

.team-card__portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

/* Portrait placeholder — initials fallback while images load */
.team-card__portrait-initials {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: var(--weight-bold);
  color: var(--color-navy);
  background-color: var(--color-linen-dark);
}

.team-card__name {
  font-family: var(--font-display);
  font-size: var(--text-h4);
  font-weight: var(--weight-semibold);
  color: var(--color-navy);
  margin-bottom: var(--space-1);
}

.team-card__role {
  font-size: var(--text-label);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-ochre);
  margin-bottom: var(--space-3);
}

.team-card__bio {
  font-size: var(--text-small);
  color: var(--color-text-secondary);
  line-height: var(--leading-body);
  max-width: 28ch;
  margin-inline: auto;
}

/* Secondary card — compact */
.team-card--secondary {
  gap: var(--space-2);
}

.team-card--secondary .team-card__name {
  font-size: var(--text-small);
  font-weight: var(--weight-semibold);
}

.team-card--secondary .team-card__role {
  font-size: 10px;
  letter-spacing: 0.08em;
}

/* Team section separator */
.team__divider {
  border: none;
  border-top: 1px solid var(--color-navy-muted);
  margin-block: var(--space-12);
}

.team__secondary-heading {
  font-size: var(--text-h4);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
}

.team__roster-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-small);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-ochre);
  background: transparent;
  border: 1px solid rgba(196, 125, 46, 0.35);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-6);
  cursor: pointer;
  margin-top: var(--space-6);
  transition: border-color 0.2s, background 0.2s;
}

.team__roster-toggle:hover {
  border-color: var(--color-ochre);
  background: rgba(196, 125, 46, 0.06);
}

.team__roster-toggle svg {
  transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

.team__roster-toggle[aria-expanded="true"] svg {
  transform: rotate(180deg);
}

.team__secondary-wrapper {
  margin-top: var(--space-8);
}

.team__secondary-wrapper[hidden] {
  display: none;
}


/* ==========================================================================
   12. Case Studies
   Classes: .case-studies, .case-studies__grid, .case-card,
            .case-card__label, .case-card__title, .case-card__body,
            .case-card__badges, .badge
   ========================================================================== */

.case-studies__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  margin-top: var(--space-12);
}

.case-card {
  background-color: var(--color-charcoal-light);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  border: 1px solid rgba(247, 244, 239, 0.06);
  transition: transform var(--transition-card), box-shadow var(--transition-card), border-color var(--transition-card);
  position: relative;
  overflow: hidden;
}

/* Ochre top stripe */
.case-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(to right, var(--color-ochre), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.case-card:hover::before {
  opacity: 1;
}

.case-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(196, 125, 46, 0.2);
}

.case-card__label {
  font-size: var(--text-label);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-ochre);
}

.case-card__title {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: var(--weight-semibold);
  color: var(--color-text-inverse);
  line-height: var(--leading-tight);
}

.case-card__body {
  font-size: var(--text-small);
  color: var(--color-text-muted-inv);
  line-height: var(--leading-body);
  flex: 1;
}

.case-card__stat {
  font-family: var(--font-display);
  font-size: var(--text-h2);
  font-weight: var(--weight-bold);
  color: var(--color-ochre);
  line-height: 1;
}

.case-card__stat-label {
  font-size: var(--text-caption);
  color: var(--color-text-muted-inv);
  margin-top: var(--space-1);
}

/* Team badge row */
.case-card__badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid rgba(247, 244, 239, 0.08);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--space-3);
  background-color: rgba(247, 244, 239, 0.07);
  border: 1px solid rgba(247, 244, 239, 0.12);
  border-radius: var(--radius-full);
  font-size: var(--text-label);
  color: var(--color-text-muted-inv);
  font-weight: var(--weight-medium);
  letter-spacing: 0.03em;
}

.badge--ochre {
  background-color: rgba(196, 125, 46, 0.15);
  border-color: rgba(196, 125, 46, 0.3);
  color: var(--color-ochre);
}


/* ==========================================================================
   13. Testimonials
   Classes: .testimonials, .testimonials__grid, .testimonial,
            .testimonial__quote, .testimonial__attribution,
            .testimonial__rule
   ========================================================================== */

.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
  margin-top: var(--space-12);
}

.testimonial {
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-10) var(--space-8);
  border: 1px solid var(--color-linen-dark);
  position: relative;
  transition: transform var(--transition-card), box-shadow var(--transition-card);
}

.testimonial:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Ochre rule top decoration */
.testimonial__rule {
  display: block;
  width: 2.5rem;
  height: 3px;
  background-color: var(--color-ochre);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
}

/* Opening quote mark */
.testimonial__mark {
  position: absolute;
  top: var(--space-8);
  right: var(--space-8);
  font-family: var(--font-display);
  font-size: 5rem;
  line-height: 1;
  color: var(--color-ochre-muted);
  pointer-events: none;
  user-select: none;
}

.testimonial__quote {
  font-size: var(--text-body-lg);
  line-height: var(--leading-body);
  color: var(--color-navy);
  font-style: italic;
  margin-bottom: var(--space-6);
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.testimonial__quote.is-expanded {
  display: block;
  overflow: visible;
}

.testimonial__expand {
  display: inline-block;
  margin-top: var(--space-2);
  font-size: var(--text-small);
  color: var(--color-ochre);
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  font-family: var(--font-body);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  transition: opacity var(--transition-fast);
}

.testimonial__expand:hover {
  opacity: 0.7;
}

.testimonial__attribution {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.testimonial__name {
  font-weight: var(--weight-semibold);
  font-size: var(--text-small);
  color: var(--color-navy);
}

.testimonial__title {
  font-size: var(--text-caption);
  color: var(--color-text-secondary);
}


/* ==========================================================================
   14. Contact & Footer
   Classes: .contact, .contact__layout, .contact__form-col,
            .contact__info-col, .form, .form__group, .form__label,
            .form__input, .form__textarea, .contact__social,
            .social-icon, .contact__address, .footer
   ========================================================================== */

.contact {
  /* linen-dark background */
}

.contact__layout {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: var(--space-16);
  align-items: start;
  margin-top: var(--space-12);
}

/* Form */
.form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form__label {
  font-size: var(--text-small);
  font-weight: var(--weight-medium);
  color: var(--color-navy);
  letter-spacing: 0.01em;
}

.form__input,
.form__textarea,
.form__select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-white);
  border: 1px solid var(--color-linen-dark);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: var(--text-body);
  color: var(--color-navy);
  line-height: var(--leading-body);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
  -webkit-appearance: none;
  appearance: none;
  outline: none;
}

.form__input:focus,
.form__textarea:focus,
.form__select:focus {
  border-color: var(--color-ochre);
  box-shadow: 0 0 0 3px var(--color-ochre-muted);
}

.form__input::placeholder,
.form__textarea::placeholder {
  color: rgba(74, 85, 104, 0.5);
}

.form__textarea {
  min-height: 100px;
  resize: vertical;
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}

.form__submit {
  align-self: flex-start;
}

/* Contact info column */
.contact__info-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.contact__info-heading {
  font-size: var(--text-h4);
  color: var(--color-navy);
  margin-bottom: var(--space-2);
}

.contact__email a {
  color: var(--color-ochre);
  font-size: var(--text-body-lg);
  font-weight: var(--weight-medium);
  transition: color var(--transition-fast);
}

.contact__email a:hover {
  color: var(--color-ochre-light);
}

.contact__address {
  font-style: normal;
  font-size: var(--text-small);
  color: var(--color-text-secondary);
  line-height: var(--leading-body);
}

.contact__address .abn {
  font-size: var(--text-caption);
  color: rgba(74, 85, 104, 0.6);
  margin-top: var(--space-2);
  display: block;
}

/* Social icons */
.contact__social {
  display: flex;
  gap: var(--space-4);
}

.social-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  border: 1px solid var(--color-linen-dark);
  color: var(--color-text-secondary);
  transition:
    color var(--transition-fast),
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast);
  text-decoration: none;
}

.social-icon svg {
  width: 18px;
  height: 18px;
}

.social-icon:hover {
  color: var(--color-ochre);
  border-color: var(--color-ochre);
  background-color: var(--color-ochre-muted);
  transform: translateY(-2px);
}

/* Footer */
.footer {
  background-color: var(--color-charcoal);
  padding-block: var(--space-10);
  scroll-snap-align: start;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-6);
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.footer__name {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: var(--weight-bold);
  color: var(--color-linen);
}

.footer__tagline {
  font-size: var(--text-caption);
  color: rgba(247, 244, 239, 0.4);
  font-style: italic;
}

.footer__nav {
  display: flex;
  gap: var(--space-6);
  list-style: none;
  flex-wrap: wrap;
}

.footer__nav-link {
  font-size: var(--text-small);
  color: rgba(247, 244, 239, 0.5);
  transition: color var(--transition-fast);
  text-decoration: none;
}

.footer__nav-link:hover {
  color: var(--color-ochre);
}

.footer__copy {
  font-size: var(--text-caption);
  color: rgba(247, 244, 239, 0.3);
  text-align: right;
}


/* ==========================================================================
   15. "Show Brief" Curtain Overlay
   Classes: .curtain-overlay, .curtain-overlay.open,
            .curtain-content, .curtain-close, .curtain-header,
            .curtain-body, .curtain-meta
   ========================================================================== */

.curtain-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-curtain);
  background-color: var(--color-charcoal);
  transform: translateX(100%);
  transition: transform var(--transition-curtain);
  /* Ensure Safari paints this correctly */
  will-change: transform;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.curtain-overlay.open {
  transform: translateX(0);
}

/* Decorative edge — subtle ochre line on the left edge of the curtain */
.curtain-overlay::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    var(--color-ochre) 20%,
    var(--color-ochre) 80%,
    transparent 100%
  );
  z-index: 1;
}

/* Scrollable inner wrapper */
.curtain-inner {
  flex: 1;
  overflow-y: auto;
  /* Custom scrollbar for webkit */
  scrollbar-width: thin;
  scrollbar-color: rgba(196, 125, 46, 0.4) rgba(247, 244, 239, 0.05);
  -webkit-overflow-scrolling: touch;
}

.curtain-inner::-webkit-scrollbar {
  width: 6px;
}

.curtain-inner::-webkit-scrollbar-track {
  background: rgba(247, 244, 239, 0.03);
}

.curtain-inner::-webkit-scrollbar-thumb {
  background: rgba(196, 125, 46, 0.35);
  border-radius: var(--radius-full);
}

.curtain-content {
  max-width: 900px;
  margin-inline: auto;
  padding: var(--space-16) var(--container-pad);
}

/* Header bar — pinned at top of curtain */
.curtain-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--container-pad);
  border-bottom: 1px solid rgba(247, 244, 239, 0.08);
  background-color: var(--color-charcoal);
  position: sticky;
  top: 0;
  z-index: 2;
  flex-shrink: 0;
}

.curtain-header__title {
  font-family: var(--font-mono);
  font-size: var(--text-small);
  color: var(--color-ochre);
  letter-spacing: 0.04em;
}

.curtain-header__meta {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  font-family: var(--font-mono);
  font-size: var(--text-caption);
  color: rgba(247, 244, 239, 0.35);
}

.curtain-timestamp {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  color: rgba(247, 244, 239, 0.25);
}

/* Close button */
.curtain-close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: transparent;
  border: 1px solid rgba(247, 244, 239, 0.12);
  color: rgba(247, 244, 239, 0.5);
  cursor: pointer;
  transition:
    color var(--transition-fast),
    background-color var(--transition-fast),
    border-color var(--transition-fast);
  flex-shrink: 0;
}

.curtain-close:hover {
  color: var(--color-ochre);
  background-color: rgba(196, 125, 46, 0.1);
  border-color: rgba(196, 125, 46, 0.3);
}

.curtain-close svg {
  width: 16px;
  height: 16px;
}

/* Document provenance block — "what we started with" */
.curtain-provenance {
  background-color: var(--color-charcoal-mid);
  border: 1px solid rgba(196, 125, 46, 0.2);
  border-radius: var(--radius-md);
  padding: var(--space-6) var(--space-8);
  margin-bottom: var(--space-10);
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--space-4);
}

.curtain-provenance__item {}

.curtain-provenance__key {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  color: rgba(196, 125, 46, 0.7);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  margin-bottom: var(--space-1);
}

.curtain-provenance__value {
  font-family: var(--font-mono);
  font-size: var(--text-small);
  color: var(--color-text-inverse);
}

/* --- Markdown content rendered inside the curtain --- */

.curtain-body {
  max-width: 860px;
  margin-inline: auto;
  padding: var(--space-12) var(--space-10);
  font-family: var(--font-mono);
  font-size: var(--text-mono);
  line-height: 1.75;
  color: rgba(247, 244, 239, 0.8);
}

/* Headings in the brief — ochre */
.curtain-body h1,
.curtain-body h2,
.curtain-body h3 {
  font-family: var(--font-mono);
  font-weight: var(--weight-medium);
  color: var(--color-ochre);
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
  letter-spacing: 0;
}

.curtain-body h1 {
  font-size: 1.4rem;
  border-bottom: 1px solid rgba(196, 125, 46, 0.2);
  padding-bottom: var(--space-3);
}

.curtain-body h2 {
  font-size: 1.15rem;
}

.curtain-body h3 {
  font-size: 1rem;
  color: rgba(196, 125, 46, 0.75);
}

/* Paragraphs */
.curtain-body p {
  margin-bottom: var(--space-4);
  max-width: none;
}

/* Horizontal rules */
.curtain-body hr {
  border: none;
  border-top: 1px solid rgba(247, 244, 239, 0.08);
  margin-block: var(--space-8);
}

/* Code blocks */
.curtain-body pre {
  background-color: var(--color-charcoal-mid);
  border: 1px solid rgba(247, 244, 239, 0.08);
  border-radius: var(--radius-md);
  padding: var(--space-5) var(--space-6);
  overflow-x: auto;
  margin-block: var(--space-5);
  font-size: 0.875rem;
  line-height: 1.6;
  -webkit-overflow-scrolling: touch;
}

.curtain-body code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background-color: rgba(247, 244, 239, 0.07);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  color: rgba(247, 244, 239, 0.9);
}

.curtain-body pre code {
  background: none;
  padding: 0;
  font-size: inherit;
  color: rgba(247, 244, 239, 0.85);
}

/* Tables */
.curtain-body table {
  width: 100%;
  border-collapse: collapse;
  margin-block: var(--space-5);
  font-size: var(--text-small);
}

.curtain-body th {
  text-align: left;
  font-weight: var(--weight-medium);
  color: var(--color-ochre);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid rgba(196, 125, 46, 0.3);
  letter-spacing: 0.02em;
}

.curtain-body td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid rgba(247, 244, 239, 0.05);
  color: rgba(247, 244, 239, 0.75);
  vertical-align: top;
}

.curtain-body tr:last-child td {
  border-bottom: none;
}

/* Blockquotes */
.curtain-body blockquote {
  background: rgba(247, 244, 239, 0.06);
  border-radius: var(--radius-sm);
  margin-left: 0;
  padding: var(--space-3) var(--space-5);
  color: rgba(247, 244, 239, 0.55);
  font-style: italic;
}

/* Lists */
.curtain-body ul,
.curtain-body ol {
  padding-left: var(--space-6);
  margin-block: var(--space-3);
}

.curtain-body li {
  margin-bottom: var(--space-2);
  color: rgba(247, 244, 239, 0.75);
}

.curtain-body ul li::marker {
  color: var(--color-ochre);
}

/* Strong */
.curtain-body strong {
  color: var(--color-linen);
  font-weight: var(--weight-medium);
}


/* ==========================================================================
   16. Keyframe Animations
   ========================================================================== */

/* Hero elements reveal */
@keyframes hero-fade-up {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Curtain open/close — mirror of the CSS transform, used for JS control */
@keyframes curtain-slide-in {
  from { transform: translateX(100%); }
  to   { transform: translateX(0); }
}

@keyframes curtain-slide-out {
  from { transform: translateX(0); }
  to   { transform: translateX(100%); }
}

/* Card entry — used by JS scroll observer as fallback */
@keyframes card-entry {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Scroll cue pulse */
@keyframes scroll-cue-pulse {
  0%, 100% { opacity: 0.4; transform: translateX(-50%) translateY(0); }
  50%       { opacity: 0.7; transform: translateX(-50%) translateY(6px); }
}

/* Nav underline sweep (used programmatically if needed) */
@keyframes underline-sweep {
  from { width: 0; }
  to   { width: 100%; }
}

/* Stagger fade — applied to .stagger-grid children by JS */
@keyframes stagger-fade-up {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Process step entry */
@keyframes process-step-in {
  from {
    opacity: 0;
    transform: translateX(-12px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Ochre line grow (used on heading-rule decorations) */
@keyframes rule-grow {
  from { width: 0; }
  to   { width: 3rem; }
}

/* Hero background grid drift — very slow parallax feel */
@keyframes grid-drift {
  0%   { background-position: 0 0; }
  100% { background-position: 48px 48px; }
}


/* ==========================================================================
   17. Scroll-Driven Animations
   Guarded with @supports — Safari does not support animation-timeline: scroll()
   as of the target date. JS fallback (IntersectionObserver) added in Stage 2.

   NOTE: Edge (Chromium) supports scroll-driven animations from v115.
   Safari supports them behind a flag only as of Safari 18 — do NOT assume
   they work in Safari. The @supports guard ensures graceful degradation.
   ========================================================================== */

/* Elements that will animate on scroll — initial hidden state */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(14px);
  transition:
    opacity 0.42s cubic-bezier(0.25, 1, 0.5, 1),
    transform 0.42s cubic-bezier(0.25, 1, 0.5, 1);
}

/* JS adds this class when element enters viewport */
.animate-on-scroll.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger variant — uses animation-delay set inline via CSS variable */
.animate-on-scroll.stagger {
  transition-delay: var(--stagger-delay, 0ms);
}

/* Scroll-driven fallback initial state for browsers that can use it natively */
@supports (animation-timeline: scroll()) {
  /*
    Scroll-driven animation applied to card grids.
    Only fires in Edge (Chromium 115+).
    Safari falls back to JS IntersectionObserver path (Stage 2).
  */
  .animate-on-scroll {
    /* Reset the opacity/transform — will be handled by animation instead */
    opacity: 1;
    transform: none;
    transition: none;
    animation: card-entry 0.42s cubic-bezier(0.25, 1, 0.5, 1) both;
    animation-timeline: view();
    animation-range: entry 0% entry 30%;
  }

  /* When animation-timeline fires, JS in-view class is not needed */
  .animate-on-scroll.in-view {
    /* No-op — animation handles it */
  }
}


/* ==========================================================================
   18. Responsive Breakpoints
   Target: 1440px designed width, 1280px minimum, 1024px reduce, <1024px survive
   ========================================================================== */

/* --- 1280px — reduce to 2-up service grid --- */
@media (max-width: 1280px) {
  :root {
    --grid-gap: var(--space-6);
  }

  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process__layout {
    grid-template-columns: 1fr;
  }

  .process__key-facts {
    position: static;
  }

  .team__featured-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
  }

  .team__secondary-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .case-studies__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* --- 1024px — single column text, reduce complexity --- */
@media (max-width: 1024px) {
  :root {
    --container-pad: var(--space-8);
  }

  .about__columns {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .about__stat-row {
    flex-wrap: wrap;
    gap: var(--space-8);
  }

  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .team__featured-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .team__secondary-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .case-studies__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .testimonials__grid {
    grid-template-columns: 1fr;
  }

  .contact__layout {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }

  .nav__links {
    gap: var(--space-5);
  }

  .curtain-provenance {
    grid-template-columns: 1fr;
  }
}

/* --- Below 900px — survive gracefully (not primary target) --- */
@media (max-width: 900px) {
  :root {
    --container-pad: var(--space-6);
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .services__grid {
    grid-template-columns: 1fr;
  }

  .team__featured-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin-inline: auto;
  }

  .team__secondary-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .case-studies__grid {
    grid-template-columns: 1fr;
  }

  .form__row {
    grid-template-columns: 1fr;
  }

  .nav__brief-trigger {
    display: none; /* Space constraint — JS can reinstate as menu item */
  }

  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer__copy {
    text-align: left;
  }

  .hero__heading {
    max-width: none;
  }
}


/* ==========================================================================
   18b. Mobile Navigation — hamburger toggle + drawer (≤768px)
   ========================================================================== */

/* Hide hamburger at desktop widths */
.nav__hamburger {
  display: none;
}

/* Drawer hidden at all widths by default; shown inside media query when .nav__mobile-menu--open is present */
.nav__mobile-menu {
  display: none;
}

@media (max-width: 768px) {
  /* Hide decorative vertical stripe — no clear right-column on mobile, overlaps content */
  .hero__bg-line {
    display: none;
  }

  /* Hide the desktop link row */
  .nav__links {
    display: none;
  }

  /* Show the hamburger button */
  .nav__hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: var(--space-2);
    background: transparent;
    border: none;
    cursor: pointer;
    flex-shrink: 0;
  }

  .nav__hamburger-bar {
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--color-linen);
    border-radius: var(--radius-full);
    transition: background-color var(--transition-fast);
  }

  .nav--scrolled .nav__hamburger-bar {
    background-color: var(--color-navy);
  }

  /* Mobile drawer — full-width panel below the nav bar */
  .nav__mobile-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: rgba(247, 244, 239, 0.97);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    box-shadow: var(--shadow-md);
    padding: var(--space-6) var(--container-pad);
  }

  .nav__mobile-menu--open {
    display: block;
  }

  .nav__mobile-menu ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
  }

  /* Override the desktop link colours inside the drawer — always light-bg context */
  .nav__mobile-menu .nav__link {
    color: var(--color-text-secondary);
    font-size: var(--text-base);
  }

  .nav__mobile-menu .nav__link:hover,
  .nav__mobile-menu .nav__link--active {
    color: var(--color-navy);
  }

  /* Close the drawer when a link is tapped — smooth scroll handles the rest */
  .nav__mobile-menu a {
    display: block;
    padding-block: var(--space-1);
  }

  /* CTA pill in the mobile drawer — sits below the link list with a separator gap */
  .nav__mobile-cta {
    margin-top: var(--space-6);
    padding-top: var(--space-5);
    border-top: 1px solid rgba(196, 125, 46, 0.2);
  }

  /* Re-show the brief trigger inside the drawer — overrides the generic
     display:none that hides it in the desktop nav at this breakpoint */
  .nav__mobile-cta .nav__brief-trigger {
    display: inline-flex;
    width: 100%;
    justify-content: center;
  }
}

/* ==========================================================================
   19. Reduced Motion
   All animation stripped. Transitions shortened to near-instant.
   This block must be the last override so it wins specificity.
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .curtain-overlay {
    transition: none;
  }

  .hero__scroll-cue {
    animation: none;
  }

  .animate-on-scroll {
    opacity: 1;
    transform: none;
    transition: none;
  }

  @supports (animation-timeline: scroll()) {
    .animate-on-scroll {
      animation: none;
    }
  }
}


/* ==========================================================================
   20. Overdrive — Hero Theatrics & Advanced Micro-interactions
   Scroll progress, precision cursor, hero line-reveal, parallax, @property glow.
   All effects degrade gracefully on prefers-reduced-motion and older browsers.
   ========================================================================== */

/* --- Scroll progress bar --- */
/* Thin ochre line fixed at the very top of the viewport */
#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background-color: var(--color-ochre);
  z-index: 300;
  pointer-events: none;
  transform-origin: left center;
}

/* Edge: CSS scroll-driven animation — no JS needed */
@supports (animation-timeline: scroll()) {
  #scroll-progress {
    width: 100%;
    transform: scaleX(0);
    animation: scroll-progress-grow linear both;
    animation-timeline: scroll(root);
  }
}

@keyframes scroll-progress-grow {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}


/* --- Hero heading line-reveal --- */
/* JS wraps heading text into .hero__line / .hero__line-inner pairs.
   overflow:hidden on the line clips the inner until it slides up.       */
.hero__line {
  display: block;
  overflow: hidden;
  /* Maintain the display heading's leading */
  line-height: var(--leading-display);
  /* Literata has deeper descenders than Playfair — padding-bottom extends the
     overflow clip downward so g/y/p descenders aren't cut at tight leading.
     0.12em was insufficient at --leading-display (1.05); bumped to 0.2em to
     fully clear the descender on the "g" in "design". (firm-showcase-047) */
  padding-bottom: 0.2em;
}

.hero__line-inner {
  display: block;
  transform: translateY(110%);
  transition: transform 0.72s cubic-bezier(0.16, 1, 0.3, 1);
}

/* JS adds .hero__heading--revealed to trigger the wipe */
.hero__heading--revealed .hero__line:nth-child(1) .hero__line-inner {
  transform: translateY(0);
  transition-delay: 0.22s;
}

.hero__heading--revealed .hero__line:nth-child(2) .hero__line-inner {
  transform: translateY(0);
  transition-delay: 0.40s;
}

/* The heading is not in the animate-on-scroll flow — ensure it starts visible */
.hero__heading {
  opacity: 1;
  transform: none;
}

/* Reduced motion: show lines immediately, no animation */
@media (prefers-reduced-motion: reduce) {
  .hero__line-inner {
    transform: none;
    transition: none;
  }
}


/* --- Precision crosshair cursor --- */
/* Only applied on pointer:fine devices (mouse/trackpad).
   Touch devices (pointer:coarse) get default browser behaviour.     */
@media (pointer: fine) {

/* Fixed 20×20 ochre crosshair. Position is driven by JS lerp.
   Rendered as two pseudo-elements: horizontal and vertical bars.    */
#cursor-crosshair {
  position: fixed;
  top: 0;
  left: 0;
  width: 20px;
  height: 20px;
  pointer-events: none;
  z-index: 9999;
  opacity: 0;
  transition: opacity 0.25s var(--ease-out-quart);
  /* JS sets transform: translate3d(x, y, 0) */
}

#cursor-crosshair::before,
#cursor-crosshair::after {
  content: '';
  position: absolute;
  background-color: var(--color-ochre);
  opacity: 0.85;
}

/* Horizontal bar */
#cursor-crosshair::before {
  top: 50%;
  left: 0;
  width: 100%;
  height: 1px;
  transform: translateY(-50%);
}

/* Vertical bar */
#cursor-crosshair::after {
  left: 50%;
  top: 0;
  height: 100%;
  width: 1px;
  transform: translateX(-50%);
}

/* Suppress native cursor site-wide — crosshair is the only cursor */
html,
html *,
html a,
html button,
html [role="button"],
html input,
html label,
html select,
html textarea,
html [tabindex] {
  cursor: none !important;
}

} /* end @media (pointer: fine) */


/* --- @property breathing hero glow --- */
/* Registers --hero-glow-y as an animatable CSS property so the gradient
   position can be transitioned smoothly. Edge + Safari 16.4+.            */
@property --hero-glow-y {
  syntax: '<percentage>';
  inherits: false;
  initial-value: 40%;
}

.hero__bg::after {
  animation: hero-glow-breathe 18s ease-in-out infinite alternate;
}

@keyframes hero-glow-breathe {
  from { --hero-glow-y: 32%; }
  to   { --hero-glow-y: 54%; }
}

@media (prefers-reduced-motion: reduce) {
  .hero__bg::after {
    animation: none;
  }
}


/* --- Process spine initial state --- */
/* JS sets transform-origin and scaleY dynamically; ensure no flash  */
.process__spine {
  will-change: transform;
}


/* ==========================================================================
   21. Curtain Flow — Design Process Timeline
   ========================================================================== */

/* Phase indicator in curtain header */
.curtain-phase-indicator {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-ochre);
  letter-spacing: var(--tracking-wide);
  margin-left: var(--space-4);
}

/* Flow container — establishes the spine via ::before */
.curtain-flow {
  position: relative;
  padding: var(--space-10) var(--space-10) var(--space-16) 72px;
  max-width: 880px;
  margin: 0 auto;
}

.curtain-flow::before {
  content: '';
  position: absolute;
  left: 36px;
  top: var(--space-10);
  bottom: var(--space-8);
  width: 1px;
  background-color: rgba(196, 125, 46, 0.35);
}

/* Stage wrapper — positioned context for the node */
.stage {
  position: relative;
  margin-bottom: var(--space-2);
  /* Animation — applied on curtain open */
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.38s cubic-bezier(0.25, 1, 0.5, 1), transform 0.38s cubic-bezier(0.25, 1, 0.5, 1);
}

.stage.is-visible {
  opacity: 1;
  transform: none;
}

/* Node circle — sits on the spine */
.stage__node {
  position: absolute;
  left: -44px; /* positions node centred on the spine at left: 36px from .curtain-flow */
  top: 20px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: rgba(196, 125, 46, 0.45);
  transition: background-color 0.2s;
}

.stage.is-open .stage__node {
  background-color: var(--color-ochre);
}

/* Stage card */
.stage__card {
  border-radius: var(--radius-sm);
  padding: var(--space-5) var(--space-6);
  background: rgba(27, 42, 74, 0.2);
  transition: background 0.2s;
}

.stage.is-open .stage__card {
  background: rgba(27, 42, 74, 0.35);
}

/* Toggle button — full-width clickable header */
.stage__toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  text-align: left;
  gap: var(--space-4);
}

.stage__header {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  flex: 1;
}

.stage__number {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  color: var(--color-ochre);
  letter-spacing: 0.12em;
  flex-shrink: 0;
}

.stage__name {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--color-linen);
  line-height: 1.2;
  margin: 0;
}

.stage__chevron {
  color: rgba(247, 244, 239, 0.4);
  flex-shrink: 0;
  transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

.stage.is-open .stage__chevron {
  transform: rotate(180deg);
}

/* Author block — below the toggle, always visible */
.stage__author-block {
  margin-top: var(--space-2);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stage__author-role {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: rgba(247, 244, 239, 0.45);
  text-transform: uppercase;
}

.stage__author-name {
  font-family: var(--font-mono);
  font-size: 12px;
  font-style: italic;
  color: rgba(247, 244, 239, 0.65);
}

/* Expandable detail — grid-template-rows animation */
.stage__detail {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.35s cubic-bezier(0.25, 1, 0.5, 1);
  overflow: hidden;
}

.stage.is-open .stage__detail {
  grid-template-rows: 1fr;
}

.stage__detail-inner {
  min-height: 0;
  overflow: hidden;
  padding-top: var(--space-5);
  border-top: 1px solid rgba(247, 244, 239, 0.08);
  margin-top: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.stage__section-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(196, 125, 46, 0.8);
  margin-bottom: var(--space-2);
}

.stage__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.stage__list li {
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(247, 244, 239, 0.75);
  padding-left: var(--space-4);
  position: relative;
  line-height: 1.5;
}

.stage__list li::before {
  content: '\2014';
  position: absolute;
  left: 0;
  color: rgba(196, 125, 46, 0.5);
}

.stage__decisions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

/* Decision callout — tinted inset, italic monospace */
.stage__decision {
  padding: var(--space-3) var(--space-4);
  background: rgba(196, 125, 46, 0.09);
  border-radius: var(--radius-sm);
}

.stage__decision p {
  font-family: var(--font-mono);
  font-size: 12px;
  font-style: italic;
  color: rgba(247, 244, 239, 0.7);
  line-height: 1.55;
  margin: 0;
}


/* ==========================================================================
   22. Document Viewer — Formal Deliverable Display
   ========================================================================== */

.curtain-doc-viewer {
  position: absolute;
  inset: 0;
  background: var(--color-linen);
  transform: translateY(100%);
  transition: transform 0.42s cubic-bezier(0.22, 1, 0.36, 1);
  display: flex;
  flex-direction: column;
  z-index: 20;
  overflow: hidden;
}

.curtain-doc-viewer.is-open {
  transform: translateY(0);
}

.curtain-doc-hdr {
  background: var(--color-navy);
  color: var(--color-linen);
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: 0 var(--space-6);
  height: 56px;
  flex-shrink: 0;
  border-bottom: 1px solid rgba(247, 244, 239, 0.08);
}

.curtain-doc-back {
  background: none;
  border: none;
  color: var(--color-linen);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: var(--tracking-wide);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  opacity: 0.7;
  transition: opacity 0.2s;
  padding: var(--space-2) var(--space-3);
  margin-left: calc(-1 * var(--space-3));
}

.curtain-doc-back:hover { opacity: 1; }

.curtain-doc-back svg {
  flex-shrink: 0;
}

.curtain-doc-title {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-ochre);
  flex: 1;
}

.curtain-doc-stage-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  color: rgba(247, 244, 239, 0.4);
  letter-spacing: var(--tracking-wide);
}

.curtain-doc-body {
  flex: 1;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: var(--space-8) var(--space-8) var(--space-16);
  -webkit-overflow-scrolling: touch;
  display: flex;
  flex-direction: column;
  align-items: center;
  contain: layout style;
}

.curtain-doc-body > * {
  width: 100%;
  max-width: 780px;
}

/* Frontmatter metadata card */
.doc-meta-card {
  background: rgba(27, 42, 74, 0.06);
  border: 1px solid rgba(27, 42, 74, 0.12);
  border-radius: 6px;
  padding: var(--space-5) var(--space-6);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-4) var(--space-8);
  margin-bottom: var(--space-8);
}

.doc-meta-card__item {}

.doc-meta-card__key {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-ochre);
  display: block;
  margin-bottom: var(--space-1);
}

.doc-meta-card__value {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--color-navy);
  font-weight: 600;
}

/* Document content */
.doc-content {
  color: var(--color-charcoal);
  font-family: 'Spectral', Georgia, serif;
  font-size: 1.05rem;
  line-height: 1.85;
  max-width: 72ch;
}

.doc-content h1 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 400;
  color: var(--color-navy);
  margin: var(--space-10) 0 var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1.5px solid var(--color-ochre);
  line-height: 1.3;
}

.doc-content h1:first-child { margin-top: 0; }

.doc-content h2 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 400;
  color: var(--color-navy);
  margin: var(--space-10) 0 var(--space-3);
  line-height: 1.3;
}

.doc-content h3 {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--color-navy);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  margin: var(--space-8) 0 var(--space-3);
}

.doc-content h4 {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-navy);
  margin: var(--space-6) 0 var(--space-2);
}

.doc-content p {
  margin: 0 0 var(--space-5);
  color: rgba(15, 25, 35, 0.85);
}

.doc-content hr {
  border: none;
  border-top: 1px solid rgba(27, 42, 74, 0.15);
  margin: var(--space-8) 0;
}

.doc-content strong {
  font-weight: 600;
  color: var(--color-navy);
}

.doc-content em {
  font-style: italic;
  color: rgba(15, 25, 35, 0.7);
}

.doc-content ul {
  margin: 0 0 var(--space-5);
  padding: 0;
  list-style: none;
}

.doc-content ul li {
  padding-left: var(--space-6);
  position: relative;
  margin-bottom: var(--space-2);
  color: rgba(15, 25, 35, 0.85);
}

.doc-content ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-ochre);
  font-family: var(--font-mono);
  font-size: 0.85em;
}

.doc-content ol {
  margin: 0 0 var(--space-5);
  padding-left: var(--space-6);
}

.doc-content ol li {
  margin-bottom: var(--space-2);
  color: rgba(15, 25, 35, 0.85);
}

.doc-content code {
  font-family: var(--font-mono);
  font-size: 0.82em;
  background: rgba(27, 42, 74, 0.07);
  color: var(--color-navy);
  padding: 1px 5px;
  border-radius: 3px;
}

.doc-content pre {
  background: var(--color-charcoal);
  color: var(--color-linen);
  border-radius: 6px;
  padding: var(--space-5) var(--space-6);
  overflow-x: auto;
  margin: 0 0 var(--space-6);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.6;
}

.doc-content pre code {
  background: none;
  color: inherit;
  padding: 0;
  border-radius: 0;
  font-size: inherit;
}

.doc-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 var(--space-6);
  font-size: 0.9rem;
}

.doc-content table th {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-navy);
  background: rgba(27, 42, 74, 0.06);
  padding: var(--space-3) var(--space-4);
  text-align: left;
  border-bottom: 1.5px solid rgba(27, 42, 74, 0.2);
  font-weight: 600;
}

.doc-content table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid rgba(27, 42, 74, 0.08);
  color: rgba(15, 25, 35, 0.85);
  vertical-align: top;
}

.doc-content table tr:last-child td {
  border-bottom: none;
}

.doc-content blockquote {
  margin: 0 0 var(--space-5);
  padding: var(--space-4) var(--space-5);
  background: rgba(27, 42, 74, 0.05);
  border: 1px solid rgba(27, 42, 74, 0.12);
  border-radius: var(--radius-sm);
}

.doc-content blockquote p {
  color: rgba(15, 25, 35, 0.65);
  font-style: italic;
  margin: 0;
}

/* Stage doc trigger */
.stage__doc-trigger {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: var(--tracking-wide);
  color: var(--color-ochre);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-3) var(--space-2);
  min-height: 44px;
  margin-top: var(--space-4);
  text-transform: uppercase;
  opacity: 0.75;
  transition: opacity 0.2s;
}

.stage__doc-trigger:hover { opacity: 1; }

.stage__doc-trigger svg {
  transition: transform 0.2s;
}

.stage__doc-trigger:hover svg {
  transform: translateX(3px);
}