/* ==========================================================================
   OLAF MINTEN ARCHITECTUUR — SHARED DESIGN SYSTEM
   styles.css · palette · type scale · spacing · motion · site chrome
   --------------------------------------------------------------------------
   Every page in this project links to THIS file and reuses these tokens and
   classes verbatim. Do not redefine palette, type or spacing tokens per page.

   Mobile-first: base rules target small screens; min-width media queries
   scale up at 640px / 768px / 1024px / 1280px.

   Visual direction: warm-dark editorial architecture practice (nl-BE).
   Espresso/near-black canvas · cream foreground · one clay/ochre accent ·
   hairline translucent borders · mono uppercase micro-labels ·
   tight medium-weight sans headlines · occasional serif italic accent word.
   ========================================================================== */

@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap");

/* --------------------------------------------------------------------------
   1. DESIGN TOKENS
   -------------------------------------------------------------------------- */
:root {
  color-scheme: dark;

  /* --- 1.1 Reference custom properties (source design tokens) --- */
  --card: oklch(20% 0.006 60);
  --popover: oklch(20% 0.006 60);
  --muted: oklch(25% 0.006 60);
  --primary: oklch(95% 0.004 85);
  --accent: oklch(68% 0.06 55);
  --ring: oklch(68% 0.06 55);
  --border: oklch(100% 0 0 / 0.1);
  --input: oklch(100% 0 0 / 0.15);
  --radius: 0.5rem;
  --blur-md: 12px;
  --blur-sm: 8px;
  --spacing: 0.25rem;

  /* --- 1.2 Colour palette (hex fallbacks + role tokens) --- */
  /* Canvas & surfaces — warm near-black / espresso */
  --color-bg: #1c1a17;
  --color-surface: #262320;
  --color-card: #232120;
  --color-popover: #232120;
  --color-muted: #2b2723;
  --color-overlay: rgba(0, 0, 0, 0.8);
  --color-transparent: rgba(0, 0, 0, 0);

  /* Text */
  --color-fg: #f2f1ec;
  --color-fg-muted: #a8a49c;
  --color-fg-invert: #1c1a17;
  --color-white: #fff;
  --color-black: #000;

  /* Accent — clay / ochre, the single brand colour */
  --color-accent: #b58b63;
  --color-accent-strong: #c9a17c;
  --color-accent-soft: rgba(181, 139, 99, 0.14);
  --color-accent-line: rgba(181, 139, 99, 0.4);
  --color-accent-fg: #1c1a17;

  /* Primary action — cream pill on dark canvas */
  --color-primary: #f2f1ec;
  --color-primary-hover: #ffffff;
  --color-primary-fg: #1c1a17;

  /* Secondary / neutral */
  --color-secondary: #2b2723;
  --color-secondary-fg: #f2f1ec;
  --color-neutral-100: #f2f1ec;
  --color-neutral-300: #a8a49c;
  --color-neutral-500: #6f6a62;
  --color-neutral-700: #3a352f;
  --color-neutral-900: #1c1a17;

  /* Lines & controls — translucent white, never grey */
  --color-border: rgba(255, 255, 255, 0.1);
  --color-border-soft: rgba(255, 255, 255, 0.06);
  --color-border-strong: rgba(255, 255, 255, 0.18);
  --color-input: rgba(255, 255, 255, 0.15);
  --color-ring: #b58b63;
  --color-destructive: #e5484d;

  /* --- 1.3 Typography --- */
  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --font-serif: Georgia, "Times New Roman", serif;
  --default-font-family: var(--font-sans);
  --default-mono-font-family: var(--font-mono);

  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;

  /* Type scale (mobile values; headings use clamp() to grow) */
  --text-2xs: 0.6875rem;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-md: 1.125rem;
  --text-lg: 1.25rem;
  --text-xl: 1.5rem;
  --text-2xl: 1.875rem;
  --text-3xl: 2.5rem;
  --text-4xl: 3.25rem;
  --text-display: clamp(2.5rem, 6.2vw, 4.5rem);

  --leading-tight: 1.02;
  --leading-snug: 1.15;
  --leading-normal: 1.35;
  --leading-relaxed: 1.65;

  --tracking-tight: -0.022em;
  --tracking-snug: -0.012em;
  --tracking-normal: 0;
  --tracking-label: 0.22em;
  --tracking-wide: 0.28em;

  /* --- 1.4 Spacing scale (base unit --spacing = 0.25rem) --- */
  --space-0: 0;
  --space-1: calc(var(--spacing) * 1);
  --space-2: calc(var(--spacing) * 2);
  --space-3: calc(var(--spacing) * 3);
  --space-4: calc(var(--spacing) * 4);
  --space-5: calc(var(--spacing) * 5);
  --space-6: calc(var(--spacing) * 6);
  --space-8: calc(var(--spacing) * 8);
  --space-10: calc(var(--spacing) * 10);
  --space-12: calc(var(--spacing) * 12);
  --space-14: calc(var(--spacing) * 14);
  --space-16: calc(var(--spacing) * 16);
  --space-20: calc(var(--spacing) * 20);
  --space-24: calc(var(--spacing) * 24);
  --space-32: calc(var(--spacing) * 32);
  --space-40: calc(var(--spacing) * 40);

  --section-y: var(--space-24);
  --gutter: var(--space-6);
  --stack-gap: var(--space-6);
  --grid-gap: var(--space-8);

  /* --- 1.5 Radius & shadow --- */
  --radius-xs: 2px;
  --radius-sm: 0.25rem;
  --radius-md: var(--radius);
  --radius-lg: 0.75rem;
  --radius-xl: 1.25rem;
  --radius-pill: 999px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 28px 60px rgba(0, 0, 0, 0.45);
  --shadow-focus: 0 0 0 3px rgba(181, 139, 99, 0.35);

  /* --- 1.6 Layout --- */
  --container-max: 72rem;
  --container-wide: 84rem;
  --container-narrow: 46rem;
  --header-height: 4.25rem;
  --measure: 60ch;
  --measure-tight: 46ch;

  /* --- 1.7 Motion --- */
  --duration-fast: 150ms;
  --duration-base: 300ms;
  --duration-slow: 500ms;
  --duration-slower: 700ms;
  --ease-out: cubic-bezier(0.19, 1, 0.22, 1);
  --ease-soft: cubic-bezier(0.33, 1, 0.68, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.16, 1, 0.3, 1);
  --reveal-offset: 24px;

  /* Semantic aliases (read these in components below) */
  --background: var(--color-bg);
  --foreground: var(--color-fg);
  --surface: var(--color-surface);
}

/* --------------------------------------------------------------------------
   2. RESET & BASE
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + var(--space-4));
}

body {
  min-height: 100vh;
  background-color: var(--color-bg);
  color: var(--color-fg);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--fw-regular);
  line-height: var(--leading-relaxed);
  letter-spacing: var(--tracking-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

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

button {
  background: none;
  border: 0;
  cursor: pointer;
}

ul,
ol {
  padding: 0;
  list-style: none;
}

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

hr {
  border: 0;
  border-top: 1px solid var(--color-border);
}

:focus-visible {
  outline: 2px solid var(--color-ring);
  outline-offset: 3px;
  border-radius: var(--radius-xs);
}

::selection {
  background: var(--color-accent-soft);
  color: var(--color-fg);
}

/* --------------------------------------------------------------------------
   3. TYPOGRAPHY
   -------------------------------------------------------------------------- */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-sans);
  font-weight: var(--fw-medium);
  color: var(--color-fg);
  text-wrap: balance;
}

h1,
.h1 {
  font-size: var(--text-display);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
}

h2,
.h2 {
  font-size: clamp(var(--text-2xl), 4.2vw, var(--text-4xl));
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
}

h3,
.h3 {
  font-size: clamp(var(--text-lg), 2.2vw, var(--text-2xl));
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-snug);
}

h4,
.h4 {
  font-size: var(--text-md);
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-snug);
}

h5,
.h5,
h6,
.h6 {
  font-size: var(--text-base);
  line-height: var(--leading-normal);
}

p {
  text-wrap: pretty;
}

.lead {
  max-width: var(--measure-tight);
  font-size: var(--text-md);
  line-height: var(--leading-relaxed);
  color: var(--color-fg-muted);
}

.text-muted,
.muted {
  color: var(--color-fg-muted);
}

.text-accent {
  color: var(--color-accent);
}

.text-fg {
  color: var(--color-fg);
}

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

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

.text-center {
  text-align: center;
}

.measure {
  max-width: var(--measure);
}

.measure-tight {
  max-width: var(--measure-tight);
}

/* Mono uppercase micro-label — eyebrows, nav, meta, form labels */
.eyebrow,
.label,
.meta {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  font-weight: var(--fw-medium);
  line-height: 1.4;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-accent);
}

.meta {
  color: var(--color-fg-muted);
}

/* Expressive serif italic accent word inside display headlines */
.accent-word,
.display-accent {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: var(--fw-regular);
  color: var(--color-accent);
  letter-spacing: 0;
}

.stat-value {
  font-size: clamp(var(--text-2xl), 3.4vw, var(--text-4xl));
  font-weight: var(--fw-medium);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
}

.quote-text {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(var(--text-lg), 2.4vw, var(--text-2xl));
  line-height: var(--leading-normal);
  color: var(--color-fg);
}

.quote-cite {
  display: block;
  margin-top: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-fg-muted);
  font-style: normal;
}

/* --------------------------------------------------------------------------
   4. LAYOUT — container, sections, grids, splits
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

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

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

.section {
  padding-block: var(--section-y);
  border-top: 1px solid var(--color-border);
}

.section:first-of-type,
.section--flush-top {
  border-top: 0;
}

.section--tight {
  padding-block: calc(var(--section-y) * 0.6);
}

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

.section-head {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}

.section-head .eyebrow + h2,
.section-head .eyebrow + .h2 {
  margin-top: var(--space-2);
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--stack-gap);
}

.stack-sm {
  gap: var(--space-3);
}

.stack-lg {
  gap: var(--space-12);
}

.cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
}

.cluster-between {
  justify-content: space-between;
}

/* Simple responsive grids — 1 column on mobile */
.grid {
  display: grid;
  gap: var(--grid-gap);
}

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

/* 12-column editorial grid for asymmetric splits (5/7, 4/8, 7/5 ...) */
.grid-12 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
}

.col-12 {
  grid-column: auto;
}

.divider {
  border-top: 1px solid var(--color-border);
}

.full-bleed {
  width: 100%;
}

/* --------------------------------------------------------------------------
   5. SITE CHROME — header, nav, mobile toggle, footer
   (markup is reused byte-for-byte on every page)
   -------------------------------------------------------------------------- */
.skip-link {
  position: absolute;
  left: var(--space-4);
  top: var(--space-4);
  z-index: 100;
  padding: var(--space-3) var(--space-5);
  background-color: var(--color-primary);
  color: var(--color-primary-fg);
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  border-radius: var(--radius-pill);
  transform: translateY(-160%);
  transition: transform var(--duration-base) var(--ease-out);
}

.skip-link:focus-visible {
  transform: translateY(0);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* --- 5.1 Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(28, 26, 23, 0.85);
  border-bottom: 1px solid var(--color-border-soft);
  -webkit-backdrop-filter: blur(var(--blur-md));
  backdrop-filter: blur(var(--blur-md));
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: var(--header-height);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--fw-medium);
  letter-spacing: var(--tracking-snug);
  color: var(--color-fg);
  transition: color var(--duration-fast) ease;
}

.brand:hover {
  color: var(--color-accent);
}

.brand-name {
  white-space: nowrap;
}

.brand-tag {
  display: none;
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-fg-muted);
}

/* --- 5.2 Navigation --- */
.site-nav {
  display: none;
}

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

.site-nav-link {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--fw-medium);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-fg-muted);
  border-radius: var(--radius-sm);
  transition: color var(--duration-fast) ease, background-color var(--duration-fast) ease;
}

.site-nav-link:hover,
.site-nav-link:focus-visible {
  color: var(--color-fg);
  background-color: var(--color-border-soft);
}

.site-nav-link[aria-current="page"] {
  color: var(--color-fg);
}

.site-nav-cta {
  color: var(--color-accent);
}

.site-nav-cta:hover,
.site-nav-cta:focus-visible {
  color: var(--color-accent-strong);
}

/* --- 5.3 Mobile toggle (3-line hamburger → X) --- */
.nav-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  color: var(--color-fg);
  transition: border-color var(--duration-fast) ease, background-color var(--duration-fast) ease;
}

.nav-toggle:hover {
  border-color: var(--color-border-strong);
  background-color: var(--color-border-soft);
}

.nav-toggle::before {
  content: "";
  width: 1.125rem;
  height: 1.5px;
  background-color: currentColor;
  border-radius: var(--radius-pill);
  box-shadow: 0 -6px 0 currentColor, 0 6px 0 currentColor;
  transition: transform var(--duration-base) var(--ease-out), box-shadow var(--duration-base) var(--ease-out);
}

.nav-toggle::after {
  content: "";
  position: absolute;
  width: 1.125rem;
  height: 1.5px;
  background-color: currentColor;
  border-radius: var(--radius-pill);
  opacity: 0;
  transform: rotate(90deg);
  transition: opacity var(--duration-base) var(--ease-out), transform var(--duration-base) var(--ease-out);
}

.nav-toggle[aria-expanded="true"]::before {
  box-shadow: 0 0 0 currentColor;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"]::after {
  opacity: 1;
  transform: rotate(-45deg);
}

/* Open state driven by the toggle's aria-expanded (and a JS class fallback) */
.site-header:has(.nav-toggle[aria-expanded="true"]) .site-nav,
.site-header.is-open .site-nav {
  display: block;
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  padding: var(--space-4) var(--gutter) var(--space-6);
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  animation: reveal-up var(--duration-base) var(--ease-out) both;
}

/* --- 5.4 Footer --- */
.site-footer {
  border-top: 1px solid var(--color-border);
  background-color: var(--color-surface);
  padding-block: var(--space-16) var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-10);
}

.footer-brand .brand {
  font-size: var(--text-md);
}

.footer-tagline {
  margin-top: var(--space-3);
  max-width: 34ch;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: var(--text-md);
  line-height: var(--leading-normal);
  color: var(--color-fg-muted);
}

.footer-title {
  margin-bottom: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  font-weight: var(--fw-medium);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-fg-muted);
}

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

.footer-link {
  display: inline-block;
  padding-block: var(--space-1);
  font-size: var(--text-sm);
  color: var(--color-fg-muted);
  transition: color var(--duration-fast) ease;
}

.footer-link:hover,
.footer-link:focus-visible {
  color: var(--color-fg);
}

.footer-contact {
  font-size: var(--text-sm);
  color: var(--color-fg-muted);
  font-style: normal;
}

.footer-contact a {
  color: var(--color-fg);
  border-bottom: 1px solid var(--color-border);
  transition: border-color var(--duration-fast) ease, color var(--duration-fast) ease;
}

.footer-contact a:hover {
  color: var(--color-accent);
  border-color: var(--color-accent-line);
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-12);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-fg-muted);
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

/* --------------------------------------------------------------------------
   6. BUTTONS
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--fw-medium);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  line-height: 1.2;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  cursor: pointer;
  white-space: nowrap;
  transition:
    transform var(--duration-base) var(--ease-out),
    background-color var(--duration-fast) ease,
    color var(--duration-fast) ease,
    border-color var(--duration-fast) ease,
    box-shadow var(--duration-fast) ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-primary-fg);
  border-color: var(--color-primary);
}

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

.btn-secondary {
  background-color: transparent;
  color: var(--color-fg);
  border-color: var(--color-border-strong);
}

.btn-secondary:hover {
  border-color: var(--color-fg-muted);
  background-color: var(--color-border-soft);
}

.btn-accent {
  background-color: var(--color-accent);
  color: var(--color-accent-fg);
  border-color: var(--color-accent);
}

.btn-accent:hover {
  background-color: var(--color-accent-strong);
  border-color: var(--color-accent-strong);
  box-shadow: var(--shadow-md);
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-fg-muted);
  border-color: transparent;
}

.btn-ghost:hover {
  color: var(--color-fg);
  background-color: var(--color-border-soft);
}

.btn-link {
  padding: 0;
  border: 0;
  border-radius: 0;
  color: var(--color-fg);
  text-transform: none;
  letter-spacing: var(--tracking-normal);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  border-bottom: 1px solid var(--color-border-strong);
  padding-bottom: var(--space-1);
  border-radius: 0;
}

.btn-link:hover {
  transform: none;
  color: var(--color-accent);
  border-bottom-color: var(--color-accent-line);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-2xs);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-sm);
}

.btn-block {
  width: 100%;
}

.btn-arrow {
  display: inline-block;
  transition: transform var(--duration-base) var(--ease-out);
}

.btn:hover .btn-arrow {
  transform: translateX(4px);
}

.btn[disabled],
.btn[aria-disabled="true"] {
  opacity: 0.5;
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   7. CARDS & CONTENT COMPONENTS
   -------------------------------------------------------------------------- */
.card {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-6);
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--duration-base) ease, transform var(--duration-base) var(--ease-out), background-color var(--duration-base) ease;
}

.card:hover {
  border-color: var(--color-border-strong);
}

.card-title {
  font-size: var(--text-md);
  font-weight: var(--fw-medium);
  letter-spacing: var(--tracking-snug);
}

.card-text {
  font-size: var(--text-sm);
  color: var(--color-fg-muted);
}

.card-media {
  overflow: hidden;
  border-radius: var(--radius-sm);
  aspect-ratio: 5 / 3;
  background-color: var(--color-muted);
}

.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out), opacity var(--duration-base) ease;
}

.card:hover .card-media img {
  transform: scale(1.03);
}

.card-meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-fg-muted);
}

/* Stats strip */
.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background-color: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-6);
  background-color: var(--color-bg);
}

.stat-label {
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-fg-muted);
}

/* Numbered process timeline */
.timeline {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}

.timeline-step {
  position: relative;
  padding-left: var(--space-8);
  border-left: 1px solid var(--color-border);
}

.timeline-num {
  position: absolute;
  left: 0;
  top: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  margin-left: -1.125rem;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  letter-spacing: var(--tracking-label);
  color: var(--color-accent);
}

.timeline-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding-top: var(--space-1);
}

/* Project / portfolio card */
.project-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.project-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 5 / 3;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background-color: var(--color-muted);
}

.project-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity var(--duration-slow) var(--ease-out), transform var(--duration-slow) var(--ease-out);
}

.project-card:hover .project-media img {
  transform: scale(1.02);
}

.project-meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-4);
}

.project-title {
  font-size: var(--text-md);
  font-weight: var(--fw-medium);
  letter-spacing: var(--tracking-snug);
}

/* Filter bar */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.filter-btn {
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-fg-muted);
  border-bottom: 1px solid transparent;
  border-radius: 0;
  transition: color var(--duration-fast) ease, border-color var(--duration-fast) ease;
}

.filter-btn:hover {
  color: var(--color-fg);
}

.filter-btn[aria-pressed="true"],
.filter-btn.is-active {
  color: var(--color-fg);
  border-bottom-color: var(--color-accent);
}

/* Carousel dots */
.carousel-dots {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.carousel-dot {
  width: 1.25rem;
  height: 3px;
  padding: 0;
  border-radius: var(--radius-pill);
  background-color: var(--color-border-strong);
  transition: background-color var(--duration-fast) ease, width var(--duration-base) var(--ease-out);
}

.carousel-dot[aria-current="true"],
.carousel-dot.is-active {
  width: 2rem;
  background-color: var(--color-accent);
}

/* Hairline 2×2 / matrix grid */
.matrix {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background-color: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.matrix-cell {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-8) var(--space-6);
  background-color: var(--color-card);
}

/* FAQ */
.faq-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.faq-item {
  padding: var(--space-6);
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.faq-item > summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  cursor: pointer;
  list-style: none;
  font-size: var(--text-base);
  font-weight: var(--fw-medium);
  letter-spacing: var(--tracking-snug);
  color: var(--color-fg);
}

.faq-item > summary::-webkit-details-marker {
  display: none;
}

.faq-q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  width: 100%;
  font-size: var(--text-base);
  font-weight: var(--fw-medium);
  color: var(--color-fg);
  text-align: left;
  transition: color var(--duration-fast) ease;
}

.faq-q:hover {
  color: var(--color-accent);
}

.faq-icon {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  color: var(--color-accent);
  transition: transform var(--duration-base) var(--ease-out);
}

.faq-item[open] .faq-icon {
  transform: rotate(45deg);
}

.faq-a {
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  color: var(--color-fg-muted);
}

/* Quote / testimonial */
.quote {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-8) var(--space-6);
  background-color: var(--color-card);
  border-left: 2px solid var(--color-accent);
  border-radius: var(--radius-md);
}

/* Badges & chips */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-accent);
  background-color: var(--color-accent-soft);
  border: 1px solid var(--color-accent-line);
  border-radius: var(--radius-pill);
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.chip {
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-fg-muted);
  background-color: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
}

/* Portrait / figure */
.portrait {
  overflow: hidden;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background-color: var(--color-muted);
}

.portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

figure {
  margin: 0;
}

figcaption {
  margin-top: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-fg-muted);
}

/* --------------------------------------------------------------------------
   8. FORMS
   -------------------------------------------------------------------------- */
.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

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

.field-label {
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  font-weight: var(--fw-medium);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-fg-muted);
}

.input,
.textarea,
.select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--color-fg);
  background-color: var(--color-input);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--duration-fast) ease, box-shadow var(--duration-fast) ease, background-color var(--duration-fast) ease;
}

.input::placeholder,
.textarea::placeholder {
  color: var(--color-fg-muted);
  opacity: 0.7;
}

.input:hover,
.textarea:hover,
.select:hover {
  border-color: var(--color-border-strong);
}

.input:focus,
.textarea:focus,
.select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: var(--shadow-focus);
  background-color: var(--color-muted);
}

.textarea {
  min-height: 9rem;
  resize: vertical;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
}

/* Honeypot — visually removed, stays in the DOM */
.honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.alert {
  padding: var(--space-4) var(--space-5);
  font-size: var(--text-sm);
  color: var(--color-fg);
  background-color: var(--color-muted);
  border: 1px solid var(--color-border);
  border-left: 2px solid var(--color-accent);
  border-radius: var(--radius-md);
}

/* --------------------------------------------------------------------------
   9. MOTION — reusable animation & transition classes
   (matches reference durations: 150 / 300 / 500 / 700ms)
   -------------------------------------------------------------------------- */
@keyframes reveal-up {
  0% {
    opacity: 0;
    transform: translateY(var(--reveal-offset, 24px));
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fade-in {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes enter {
  0% {
    opacity: var(--enter-opacity, 1);
    transform: translate3d(var(--enter-x, 0), var(--enter-y, 0), 0) scale3d(var(--enter-scale, 1), var(--enter-scale, 1), var(--enter-scale, 1));
  }
  100% {
    opacity: 1;
    transform: none;
  }
}

@keyframes exit {
  0% {
    opacity: 1;
    transform: none;
  }
  100% {
    opacity: var(--exit-opacity, 1);
    transform: translate3d(var(--exit-x, 0), var(--exit-y, 0), 0) scale3d(var(--exit-scale, 1), var(--exit-scale, 1), var(--exit-scale, 1));
  }
}

@keyframes accordion-down {
  0% {
    height: 0;
    opacity: 0;
  }
  100% {
    height: var(--accordion-height, auto);
    opacity: 1;
  }
}

@keyframes accordion-up {
  0% {
    height: var(--accordion-height, auto);
    opacity: 1;
  }
  100% {
    height: 0;
    opacity: 0;
  }
}

@keyframes caret-blink {
  0%,
  70%,
  100% {
    opacity: 1;
  }
  20%,
  50% {
    opacity: 0;
  }
}

@keyframes marquee {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* Scroll-reveal (hero, timeline steps, project cards) */
.reveal,
.fade-up,
.animate-reveal {
  animation: reveal-up var(--duration-slow) var(--ease-out) both;
}

.fade-in {
  animation: fade-in var(--duration-slow) var(--ease-soft) both;
}

.reveal-delay-1 {
  animation-delay: 80ms;
}

.reveal-delay-2 {
  animation-delay: 160ms;
}

.reveal-delay-3 {
  animation-delay: 240ms;
}

.reveal-delay-4 {
  animation-delay: 320ms;
}

/* Stagger direct children of a container */
.stagger > * {
  animation: reveal-up var(--duration-slow) var(--ease-out) both;
}

.stagger > *:nth-child(1) { animation-delay: 0ms; }
.stagger > *:nth-child(2) { animation-delay: 80ms; }
.stagger > *:nth-child(3) { animation-delay: 160ms; }
.stagger > *:nth-child(4) { animation-delay: 240ms; }
.stagger > *:nth-child(5) { animation-delay: 320ms; }
.stagger > *:nth-child(6) { animation-delay: 400ms; }
.stagger > *:nth-child(7) { animation-delay: 480ms; }
.stagger > *:nth-child(8) { animation-delay: 560ms; }

/* Ambient / micro-interactions */
.pulse,
.animate-pulse {
  animation: pulse 2.4s var(--ease-in-out) infinite;
}

.caret-blink,
.animate-caret {
  animation: caret-blink 1.1s step-end infinite;
}

.animate-enter {
  animation: enter var(--duration-base) var(--ease-out) both;
}

.animate-exit {
  animation: exit var(--duration-base) var(--ease-in-out) both;
}

.accordion-down {
  overflow: hidden;
  animation: accordion-down var(--duration-base) var(--ease-out) both;
}

.accordion-up {
  overflow: hidden;
  animation: accordion-up var(--duration-base) var(--ease-in-out) both;
}

/* Continuous marquee strip */
.marquee {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.marquee-track {
  display: flex;
  width: max-content;
  gap: var(--space-16);
  animation: marquee 38s linear infinite;
}

.marquee:hover .marquee-track {
  animation-play-state: paused;
}

/* Transitions & hover lift */
.transition {
  transition:
    color var(--duration-fast) ease,
    background-color var(--duration-fast) ease,
    border-color var(--duration-fast) ease,
    opacity var(--duration-base) ease,
    transform var(--duration-base) var(--ease-out);
}

.transition-colors {
  transition: color var(--duration-fast) ease, background-color var(--duration-fast) ease, border-color var(--duration-fast) ease;
}

.transition-slow {
  transition:
    opacity var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
}

.lift {
  transition: transform var(--duration-base) var(--ease-out), box-shadow var(--duration-base) ease;
}

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

/* Cross-fade helper for image carousels */
.crossfade {
  opacity: 0;
  transition: opacity var(--duration-slow) var(--ease-out);
}

.crossfade.is-active {
  opacity: 1;
}

/* --------------------------------------------------------------------------
   10. SPACING UTILITIES (compact set for page rhythm)
   -------------------------------------------------------------------------- */
.mt-0 { margin-top: 0; }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mt-16 { margin-top: var(--space-16); }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }
.mb-16 { margin-bottom: var(--space-16); }

/* --------------------------------------------------------------------------
   11. RESPONSIVE — mobile first, scale up
   -------------------------------------------------------------------------- */
@media (min-width: 640px) {
  .grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .stat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .matrix {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .faq-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-bottom {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

@media (min-width: 768px) {
  :root {
    --gutter: var(--space-10);
    --section-y: var(--space-32);
    --grid-gap: var(--space-12);
    --stack-gap: var(--space-8);
  }

  .brand-tag {
    display: inline-block;
  }

  .site-nav {
    display: block;
  }

  .site-nav-list {
    flex-direction: row;
    align-items: center;
    gap: var(--space-1);
  }

  .nav-toggle {
    display: none;
  }

  .site-header:has(.nav-toggle[aria-expanded="true"]) .site-nav,
  .site-header.is-open .site-nav {
    position: static;
    padding: 0;
    background-color: transparent;
    border: 0;
    box-shadow: none;
    animation: none;
  }

  .grid-12 {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: var(--space-16);
  }

  .col-3 { grid-column: span 3 / span 3; }
  .col-4 { grid-column: span 4 / span 4; }
  .col-5 { grid-column: span 5 / span 5; }
  .col-6 { grid-column: span 6 / span 6; }
  .col-7 { grid-column: span 7 / span 7; }
  .col-8 { grid-column: span 8 / span 8; }
  .col-9 { grid-column: span 9 / span 9; }
  .col-12 { grid-column: span 12 / span 12; }

  .section-head {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    gap: var(--space-12);
  }

  .stat-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .footer-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-12);
  }
}

@media (min-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .grid-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .timeline-step {
    padding-left: var(--space-10);
  }

  .timeline-num {
    width: 2.5rem;
    height: 2.5rem;
    margin-left: -1.25rem;
  }

  .card {
    padding: var(--space-8);
  }
}

@media (min-width: 1280px) {
  :root {
    --container-max: 76rem;
  }

  .site-nav-list {
    gap: var(--space-2);
  }
}

/* --------------------------------------------------------------------------
   12. MOTION PREFERENCES & PRINT
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal,
  .fade-up,
  .animate-reveal,
  .stagger > * {
    opacity: 1;
    transform: none;
  }
}

@media print {
  .site-header,
  .nav-toggle,
  .skip-link {
    display: none;
  }

  body {
    background: var(--color-white);
    color: var(--color-black);
  }
}