/* =================================================================
   NeedingTech Design System
   Tokens, base styles, and reusable components.
   ================================================================= */

:root {
  /* Brand */
  --color-primary: #2563eb;
  --color-primary-600: #1d4ed8;
  --color-primary-700: #1e40af;
  --color-primary-50: #eff6ff;
  --color-accent: #06b6d4;

  /* Neutral */
  --color-ink: #0b1220;
  --color-ink-2: #111827;
  --color-text: #1f2937;
  --color-muted: #4b5563;
  --color-subtle: #6b7280;
  --color-border: #e5e7eb;
  --color-border-strong: #d1d5db;
  --color-bg: #ffffff;
  --color-bg-soft: #f8fafc;
  --color-bg-mute: #f1f5f9;

  /* Dark surfaces */
  --color-dark: #0b1220;
  --color-dark-2: #0f172a;
  --color-dark-3: #1e293b;
  --color-on-dark: #e2e8f0;
  --color-on-dark-muted: #94a3b8;

  /* Semantic */
  --color-success: #16a34a;
  --color-warning: #f59e0b;
  --color-danger: #dc2626;

  /* Type */
  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-lg: 1.125rem;
  --fs-xl: 1.25rem;
  --fs-2xl: 1.5rem;
  --fs-3xl: 1.875rem;
  --fs-4xl: 2.25rem;
  --fs-5xl: 3rem;
  --fs-6xl: 3.75rem;
  --lh-tight: 1.15;
  --lh-snug: 1.3;
  --lh-base: 1.6;

  /* Space */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Layout */
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow: 0 4px 20px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 50px rgba(15, 23, 42, 0.12);
  --container-w: 1200px;

  /* Motion */
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --t-fast: 150ms;
  --t-base: 250ms;
}

/* ----- Reset & base ---------------------------------------------- */

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-base);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease);
}
a:hover { color: var(--color-primary-700); }

h1, h2, h3, h4, h5, h6 {
  color: var(--color-ink);
  font-weight: 700;
  line-height: var(--lh-tight);
  letter-spacing: -0.01em;
  margin: 0 0 var(--space-4);
  text-wrap: balance;
  overflow-wrap: break-word;
  word-break: break-word;
  hyphens: auto;
}
h1 { font-size: clamp(2.25rem, 4.2vw, 3.75rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); letter-spacing: -0.02em; }
h3 { font-size: clamp(1.375rem, 2vw, 1.75rem); }
h4 { font-size: var(--fs-xl); }
h5 { font-size: var(--fs-lg); }
h6 { font-size: var(--fs-base); }

p { margin: 0 0 var(--space-4); color: var(--color-muted); text-wrap: pretty; overflow-wrap: break-word; }

ul, ol { margin: 0 0 var(--space-4); padding-left: var(--space-6); color: var(--color-muted); }
li { margin-bottom: var(--space-2); }

hr { border: 0; border-top: 1px solid var(--color-border); margin: var(--space-12) 0; }

::selection { background: var(--color-primary); color: #fff; }

/* ----- Layout helpers -------------------------------------------- */

.container { width: 100%; max-width: var(--container-w); margin: 0 auto; padding: 0 var(--space-6); }
.container-narrow { max-width: 840px; margin: 0 auto; padding: 0 var(--space-6); }

.section { padding: clamp(3rem, 6vw, 6rem) 0; }
.section-tight { padding: clamp(2rem, 4vw, 4rem) 0; }
.section-dark { background: var(--color-dark); color: var(--color-on-dark); }
.section-dark h1, .section-dark h2, .section-dark h3, .section-dark h4 { color: #fff; }
.section-dark p { color: var(--color-on-dark-muted); }
.section-soft { background: var(--color-bg-soft); }

.grid { display: grid; gap: var(--space-6); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

.text-center { text-align: center; }
.text-sm { font-size: var(--fs-sm); }
.text-muted { color: var(--color-muted); }
.text-on-dark { color: var(--color-on-dark); }
.mono { font-family: var(--font-mono); }

/* ----- Eyebrow / kicker ------------------------------------------ */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: var(--color-primary-50);
  padding: var(--space-2) var(--space-3);
  border-radius: 999px;
  margin-bottom: var(--space-5);
}
.section-dark .eyebrow {
  background: rgba(37, 99, 235, 0.15);
  color: #93c5fd;
}

/* ----- Buttons --------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: inherit;
  font-size: var(--fs-base);
  font-weight: 600;
  line-height: 1;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: transform var(--t-fast) var(--ease), background var(--t-fast) var(--ease), color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
  text-decoration: none;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.25);
}
.btn-primary:hover { background: var(--color-primary-600); color: #fff; box-shadow: 0 12px 28px rgba(37, 99, 235, 0.32); }

.btn-secondary {
  background: #fff;
  color: var(--color-ink);
  border-color: var(--color-border);
}
.btn-secondary:hover { border-color: var(--color-primary); color: var(--color-primary); }

.btn-ghost {
  background: transparent;
  color: var(--color-on-dark);
  border-color: rgba(255, 255, 255, 0.2);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.08); color: #fff; border-color: rgba(255, 255, 255, 0.4); }

.btn-link { background: transparent; color: var(--color-primary); padding: var(--space-2) 0; }
.btn-link:hover { transform: none; text-decoration: underline; }

.btn-sm { padding: var(--space-2) var(--space-4); font-size: var(--fs-sm); }
.btn-lg { padding: var(--space-4) var(--space-8); font-size: var(--fs-lg); }
.btn-block { width: 100%; }

/* ----- Cards ----------------------------------------------------- */

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: transform var(--t-base) var(--ease), box-shadow var(--t-base) var(--ease), border-color var(--t-base) var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--color-border-strong); }

.card-feature {
  padding: var(--space-8);
}
.card-feature .icon {
  width: 48px; height: 48px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--color-primary-50);
  color: var(--color-primary);
  border-radius: var(--radius);
  margin-bottom: var(--space-4);
  font-size: var(--fs-xl);
}

.card-dark {
  background: var(--color-dark-2);
  border-color: var(--color-dark-3);
  color: var(--color-on-dark);
}
.card-dark:hover { border-color: var(--color-primary); }
.card-dark h3, .card-dark h4 { color: #fff; }
.card-dark p { color: var(--color-on-dark-muted); }

/* ----- Tags / Pills ---------------------------------------------- */

.tag {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  background: var(--color-bg-mute);
  color: var(--color-muted);
  font-size: var(--fs-xs);
  font-weight: 500;
  border-radius: 999px;
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
a.tag:hover, .tag.is-active { background: var(--color-primary); color: #fff; }

/* ----- Forms ----------------------------------------------------- */

.form-group { margin-bottom: var(--space-5); }
.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-ink);
}
.form-control,
.form-select,
textarea.form-control {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: inherit;
  font-size: var(--fs-base);
  color: var(--color-ink);
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}
.form-control:focus, .form-select:focus, textarea.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.15);
}
textarea.form-control { min-height: 140px; resize: vertical; }

/* ----- Header / Navbar ------------------------------------------- */

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11, 18, 32, 0.96);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

/* Top utility bar */
.topbar {
  background: var(--color-dark-2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  font-size: var(--fs-xs);
  color: var(--color-on-dark-muted);
}
.topbar-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-2) 0;
  gap: var(--space-4);
}
.topbar-social { display: flex; gap: var(--space-3); }
.topbar-social a {
  width: 26px; height: 26px;
  display: inline-grid; place-items: center;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 6px;
  color: #fff;
  transition: background var(--t-fast) var(--ease);
}
.topbar-social a:hover { background: var(--color-primary); }
.topbar-contact {
  display: flex; gap: var(--space-5); flex-wrap: wrap;
}
.topbar-contact a {
  display: inline-flex; align-items: center; gap: var(--space-2);
  color: var(--color-on-dark-muted);
}
.topbar-contact a:hover { color: #fff; }
@media (max-width: 640px) {
  .topbar-social { display: none; }
  .topbar-contact { font-size: 11px; gap: var(--space-3); }
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding: var(--space-4) 0;
}
.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: #fff;
  font-weight: 700;
  font-size: var(--fs-lg);
  letter-spacing: -0.01em;
}
.nav-brand:hover { color: #fff; }
.nav-brand img { display: block; height: 44px; width: auto; }
.nav-brand .brand-mark {
  width: 32px; height: 32px;
  display: inline-grid; place-items: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff; font-weight: 800;
  border-radius: 8px;
  font-family: var(--font-mono);
}

.nav-call {
  display: flex; flex-direction: column;
  line-height: 1.1;
  text-align: right;
  font-size: var(--fs-xs);
  color: var(--color-on-dark-muted);
}
.nav-call a { color: #fff; font-weight: 700; font-size: var(--fs-sm); margin-top: 2px; }
.nav-call a:hover { color: var(--color-primary); }
@media (max-width: 1100px) { .nav-call { display: none; } }
.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
  margin: 0; padding: 0;
}
.nav-menu a {
  color: var(--color-on-dark);
  font-weight: 500;
  font-size: var(--fs-sm);
  padding: var(--space-2) 0;
  position: relative;
}
.nav-menu a:hover { color: #fff; }
.nav-menu a.is-active { color: #fff; }
.nav-menu a.is-active::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: -6px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
}
.nav-cta { display: flex; align-items: center; gap: var(--space-3); }
.nav-toggle {
  display: none;
  background: transparent; border: 0;
  color: #fff;
  padding: var(--space-2);
  cursor: pointer;
}

@media (max-width: 900px) {
  .nav-menu {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column;
    background: var(--color-dark);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: var(--space-4);
    gap: var(--space-3);
    align-items: stretch;
    transform: translateY(-10px);
    opacity: 0; pointer-events: none;
    transition: transform var(--t-base) var(--ease), opacity var(--t-base) var(--ease);
  }
  .nav-menu.is-open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-menu a { padding: var(--space-3) 0; }
  .nav-toggle { display: inline-flex; }
  .nav-cta .btn-cta-mobile-hide { display: none; }
}

/* ----- Hero ------------------------------------------------------ */

.hero {
  position: relative;
  background: radial-gradient(1200px 600px at 80% -10%, rgba(37, 99, 235, 0.35), transparent 60%),
              radial-gradient(900px 500px at 0% 110%, rgba(6, 182, 212, 0.25), transparent 60%),
              linear-gradient(180deg, #0b1220 0%, #0f172a 100%);
  color: #fff;
  padding: clamp(4rem, 9vw, 8rem) 0 clamp(4rem, 9vw, 7rem);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(148, 163, 184, 0.06) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(148, 163, 184, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
  pointer-events: none;
}
.hero-inner { position: relative; }
.hero h1 { color: #fff; max-width: 18ch; }
.hero p.lead {
  color: var(--color-on-dark);
  font-size: clamp(1.05rem, 1.4vw, 1.25rem);
  max-width: 56ch;
  margin-bottom: var(--space-8);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.hero-meta {
  display: flex; flex-wrap: wrap; gap: var(--space-6);
  margin-top: var(--space-10);
  color: var(--color-on-dark-muted);
  font-size: var(--fs-sm);
}
.hero-meta strong { color: #fff; font-weight: 700; }

/* Two-column hero layout (text + image) */
.hero-split {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
@media (max-width: 900px) {
  .hero-split { grid-template-columns: 1fr; }
  .hero-split .hero-art { order: -1; }
}
.hero-art {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.2), rgba(6, 182, 212, 0.15));
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
}
.hero-art img { width: 100%; height: 100%; object-fit: cover; display: block; }
.hero-art::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.18), transparent 60%);
  pointer-events: none;
}

/* Generic AI image surface (used in service-art, work-thumb, etc.) */
.ai-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }

/* Page header (smaller hero for inner pages) */
.page-header {
  background: linear-gradient(180deg, #0b1220 0%, #0f172a 100%);
  color: #fff;
  padding: clamp(3rem, 6vw, 5rem) 0 clamp(2.5rem, 5vw, 4rem);
  position: relative;
  overflow: hidden;
}
.page-header::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(800px 400px at 100% -20%, rgba(37, 99, 235, 0.25), transparent 60%);
  pointer-events: none;
}
.page-header h1 { color: #fff; margin-bottom: var(--space-3); }
.page-header p { color: var(--color-on-dark-muted); max-width: 60ch; }

.breadcrumbs {
  display: flex; flex-wrap: wrap; gap: var(--space-2);
  list-style: none; padding: 0; margin: 0 0 var(--space-4);
  font-size: var(--fs-sm);
  color: var(--color-on-dark-muted);
}
.breadcrumbs li::after { content: "/"; margin-left: var(--space-2); color: var(--color-on-dark-muted); }
.breadcrumbs li:last-child::after { content: ""; }
.breadcrumbs a { color: var(--color-on-dark-muted); }
.breadcrumbs a:hover { color: #fff; }
.breadcrumbs li[aria-current="page"] { color: #fff; }

/* ----- Logos / partner strip ------------------------------------- */

.logo-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: var(--space-8);
  align-items: center;
  padding: var(--space-8) 0;
}
.logo-strip img { opacity: 0.6; filter: grayscale(100%); transition: opacity var(--t-base) var(--ease), filter var(--t-base) var(--ease); margin: 0 auto; max-height: 36px; }
.logo-strip img:hover { opacity: 1; filter: none; }

/* ----- Stats ----------------------------------------------------- */

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-6);
}
.stat .value {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 3vw, 2.75rem);
  font-weight: 700;
  color: var(--color-ink);
  line-height: 1;
}
.section-dark .stat .value { color: #fff; }
.stat .label { color: var(--color-muted); font-size: var(--fs-sm); margin-top: var(--space-2); }
.section-dark .stat .label { color: var(--color-on-dark-muted); }

/* ----- Blog cards ------------------------------------------------ */

.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-6);
}
.post-card {
  display: flex; flex-direction: column;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--t-base) var(--ease), box-shadow var(--t-base) var(--ease), border-color var(--t-base) var(--ease);
}
.post-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--color-border-strong); }
.post-card .post-thumb {
  aspect-ratio: 16 / 9;
  background: var(--color-bg-mute);
  overflow: hidden;
}
.post-card .post-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 600ms var(--ease); }
.post-card:hover .post-thumb img { transform: scale(1.04); }
.post-body { padding: var(--space-6); display: flex; flex-direction: column; flex: 1; }
.post-meta { display: flex; flex-wrap: wrap; gap: var(--space-2); font-size: var(--fs-xs); color: var(--color-subtle); margin-bottom: var(--space-3); }
.post-meta .dot { color: var(--color-border-strong); }
.post-title {
  font-size: var(--fs-xl);
  line-height: var(--lh-snug);
  margin-bottom: var(--space-3);
}
.post-title a { color: var(--color-ink); }
.post-title a:hover { color: var(--color-primary); }
.post-excerpt { color: var(--color-muted); font-size: var(--fs-sm); margin-bottom: var(--space-4); }
.post-foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); }
.post-author { display: flex; align-items: center; gap: var(--space-2); font-size: var(--fs-xs); color: var(--color-muted); }
.post-author .avatar { width: 28px; height: 28px; border-radius: 999px; background: var(--color-bg-mute); display: inline-grid; place-items: center; color: var(--color-muted); font-weight: 700; font-size: var(--fs-xs); }

/* Featured post */
.post-card-featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 0;
}
@media (max-width: 800px) {
  .post-card-featured { grid-template-columns: 1fr; }
}
.post-card-featured .post-thumb { aspect-ratio: auto; min-height: 320px; }
.post-card-featured .post-body { padding: clamp(1.5rem, 3vw, 2.5rem); }
.post-card-featured .post-title { font-size: clamp(1.5rem, 2.2vw, 2rem); }

/* ----- Pagination ------------------------------------------------ */

.pagination {
  display: flex; flex-wrap: wrap; gap: var(--space-2);
  justify-content: center;
  margin-top: var(--space-10);
}
.pagination button {
  min-width: 40px; height: 40px;
  display: inline-flex; align-items: center; justify-content: center;
  background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  font-family: inherit; font-weight: 600; color: var(--color-ink);
  cursor: pointer; padding: 0 var(--space-3);
  transition: all var(--t-fast) var(--ease);
}
.pagination button:hover:not(:disabled) { border-color: var(--color-primary); color: var(--color-primary); }
.pagination button[aria-current="page"] { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.pagination button:disabled { opacity: 0.4; cursor: not-allowed; }

/* ----- Blog detail content -------------------------------------- */

.prose {
  font-size: var(--fs-lg);
  line-height: 1.8;
  color: var(--color-text);
}
.prose h2 { margin-top: var(--space-12); }
.prose h3 { margin-top: var(--space-10); }
.prose p { margin-bottom: var(--space-5); color: var(--color-text); }
.prose ul, .prose ol { color: var(--color-text); margin-bottom: var(--space-5); }
.prose blockquote {
  border-left: 4px solid var(--color-primary);
  padding: var(--space-4) var(--space-6);
  background: var(--color-bg-soft);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--color-ink);
  font-style: italic;
  margin: var(--space-6) 0;
}
.prose img { border-radius: var(--radius); margin: var(--space-6) 0; }
.prose code { font-family: var(--font-mono); background: var(--color-bg-mute); padding: 2px 6px; border-radius: 4px; font-size: 0.9em; color: var(--color-ink); }
.prose pre { background: var(--color-ink); color: var(--color-on-dark); padding: var(--space-5); border-radius: var(--radius); overflow-x: auto; }
.prose pre code { background: transparent; color: inherit; padding: 0; }
.prose a { color: var(--color-primary); text-decoration: underline; text-underline-offset: 3px; }

/* ----- Footer ---------------------------------------------------- */

.site-footer {
  background: var(--color-dark);
  color: var(--color-on-dark);
  padding: var(--space-16) 0 var(--space-8);
  margin-top: var(--space-20);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}
@media (max-width: 800px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-8); } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-col h4 {
  color: #fff;
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-4);
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: var(--space-2); }
.footer-col a { color: var(--color-on-dark-muted); font-size: var(--fs-sm); }
.footer-col a:hover { color: #fff; }

.footer-contact li { display: flex; flex-direction: column; gap: 2px; margin-bottom: var(--space-3); font-size: var(--fs-sm); color: var(--color-on-dark-muted); }
.footer-contact strong { color: #fff; font-weight: 600; font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: 0.04em; }
.footer-contact a { color: var(--color-on-dark-muted); }
.footer-brand { font-size: var(--fs-sm); }
.footer-brand p { color: var(--color-on-dark-muted); margin-top: var(--space-3); max-width: 32ch; }
.footer-social { display: flex; gap: var(--space-3); margin-top: var(--space-4); }
.footer-social a {
  width: 36px; height: 36px;
  display: inline-grid; place-items: center;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 8px;
  color: #fff;
  transition: background var(--t-fast) var(--ease);
}
.footer-social a:hover { background: var(--color-primary); }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: var(--space-6);
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--space-4);
  font-size: var(--fs-sm);
  color: var(--color-on-dark-muted);
}

/* ----- Skip link / a11y ----------------------------------------- */
.skip-link {
  position: absolute; top: -100px; left: 0;
  background: var(--color-primary); color: #fff;
  padding: var(--space-3) var(--space-4);
  border-radius: 0 0 var(--radius) 0;
  z-index: 100;
}
.skip-link:focus { top: 0; color: #fff; }

:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; border-radius: 4px; }

/* ----- Utility --------------------------------------------------- */

.spinner {
  width: 32px; height: 32px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 999px;
  animation: spin 700ms linear infinite;
  margin: var(--space-8) auto;
}
@keyframes spin { to { transform: rotate(360deg); } }

.empty-state { text-align: center; padding: var(--space-12) var(--space-6); color: var(--color-muted); }
.empty-state .icon { font-size: 2.5rem; margin-bottom: var(--space-3); opacity: 0.4; }

[hidden] { display: none !important; }

/* ----- Reveal on scroll ------------------------------------------ */

.reveal { opacity: 0; transform: translateY(16px); transition: opacity 600ms var(--ease), transform 600ms var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}