:root {
    --bg: #04231E;
    --bg-raise: #0A352D;
    --bg-card: #0E3D34;
    --line: rgba(255,255,255,0.08);
    --line-strong: rgba(255,255,255,0.14);
    --ink: #FBF3E3;
    --ink-soft: #C0AC88;
    --ink-faint: #8B7E62;
    --accent: #F59E0B;
    --accent-bright: #FBB733;
    --accent-dim: rgba(245,158,11,0.14);
  }
  html { scroll-behavior: smooth; }
  html, body {
    background: var(--bg);
    color: var(--ink);
    font-family: 'Geist', ui-sans-serif, system-ui, sans-serif;
    font-size: 16px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
  .font-mono { font-family: 'JetBrains Mono', ui-monospace, monospace; }

  .ink       { color: var(--ink); }
  .ink-soft  { color: var(--ink-soft); }
  .ink-faint { color: var(--ink-faint); }
  .accent    { color: var(--accent-bright); }
  .border-line { border-color: var(--line); }

  ::selection { background: var(--accent); color: #04231E; }

  /* Mono uppercase label */
  .mono-label {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--ink-faint);
    font-weight: 500;
  }
  .mono-label .accent { color: var(--accent-bright); }

  /* Display type — tight geometric sans */
  .display {
    font-weight: 600;
    letter-spacing: -0.04em;
    line-height: 1.02;
  }
  .display-md { font-weight: 600; letter-spacing: -0.03em; line-height: 1.12; }

  /* Gradient keyword */
  .grad-text {
    background: linear-gradient(110deg, var(--accent-bright) 0%, var(--accent) 55%, #C97E08 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
  }

  /* Background grid texture */
  .bg-grid {
    background-image:
      linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
    background-size: 72px 72px;
    mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, black 30%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, black 30%, transparent 75%);
  }

  /* Hero glow */
  .hero-glow {
    background: radial-gradient(ellipse 50% 45% at 50% 0%, rgba(245,158,11,0.16), transparent 70%);
  }

  /* Reveal on scroll */
  .reveal {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 800ms cubic-bezier(.2,.7,.2,1), transform 800ms cubic-bezier(.2,.7,.2,1);
  }
  .reveal.in { opacity: 1; transform: translateY(0); }

  /* Header */
  .header-blur {
    background: rgba(4,35,30,0.7);
    backdrop-filter: saturate(140%) blur(16px);
    -webkit-backdrop-filter: saturate(140%) blur(16px);
    border-bottom: 1px solid transparent;
    transition: border-color 220ms ease, background 220ms ease;
  }
  .header-blur.scrolled {
    border-bottom-color: var(--line);
    background: rgba(4,35,30,0.85);
  }

  /* Nav link */
  .nav-link {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 11px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--ink-soft);
    transition: color 200ms ease;
  }
  .nav-link:hover { color: var(--ink); }

  /* Primary button — white on dark */
  .btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    background: var(--ink);
    color: #04231E;
    font-weight: 500;
    font-size: 15px;
    letter-spacing: -0.01em;
    padding: 0.85rem 1.5rem;
    border-radius: 8px;
    transition: transform 200ms ease, box-shadow 200ms ease, background 200ms ease;
  }
  .btn-primary:hover {
    transform: translateY(-2px);
    background: #fff;
    box-shadow: 0 0 0 1px rgba(255,255,255,0.1), 0 12px 32px -12px rgba(245,158,11,0.45);
  }
  .btn-primary .chev { transition: transform 200ms ease; }
  .btn-primary:hover .chev { transform: translateX(3px); }

  /* Accent button — brand amber, for the primary Contact CTA */
  .btn-accent {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    background: linear-gradient(110deg, var(--accent-bright) 0%, var(--accent) 100%);
    color: #04231E;
    font-weight: 600;
    font-size: 15px;
    letter-spacing: -0.01em;
    padding: 0.85rem 1.5rem;
    border-radius: 8px;
    box-shadow: 0 0 0 1px rgba(245,158,11,0.25);
    transition: transform 200ms ease, box-shadow 200ms ease, filter 200ms ease;
  }
  .btn-accent:hover {
    transform: translateY(-2px);
    filter: brightness(1.07) saturate(1.05);
    box-shadow: 0 0 0 1px rgba(251,183,51,0.5), 0 12px 30px -10px rgba(245,158,11,0.6);
  }
  .btn-accent .chev { color: #04231E; transition: transform 200ms ease; }
  .btn-accent:hover .chev { transform: translateX(3px); }

  /* Ghost button */
  .btn-ghost {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--ink);
    font-weight: 500;
    font-size: 15px;
    padding: 0.85rem 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--line-strong);
    transition: border-color 200ms ease, background 200ms ease;
  }
  .btn-ghost:hover { border-color: rgba(255,255,255,0.3); background: rgba(255,255,255,0.03); }
  .btn-ghost .chev { color: var(--accent-bright); transition: transform 200ms ease; }
  .btn-ghost:hover .chev { transform: translateX(3px); }

  /* Hairline */
  .hairline { border-top: 1px solid var(--line); }

  /* ===== Light (cream) sections — page rhythm / breathing ===== */
  .section-cream { background: #FBF3E3; }
  .section-cream .ink { color: #04231E; }
  .section-cream .ink-soft { color: #6B5F4C; }
  .section-cream .ink-faint { color: #9A8E76; }
  .section-cream .mono-label { color: #9A8E76; }
  .section-cream .accent { color: #B8740A; }
  .section-cream .step-num { color: #B8740A; }
  .section-cream .step-rule { background: linear-gradient(90deg, rgba(4,35,30,0.28), transparent); }
  .section-cream .hairline { border-color: rgba(4,35,30,0.10); }
  .section-cream .card {
    background: #FFFFFF;
    border-color: rgba(4,35,30,0.08);
    box-shadow: 0 1px 2px rgba(4,35,30,0.05);
  }
  .section-cream .card:hover { border-color: rgba(245,158,11,0.55); }
  .section-cream [stroke^="rgba(255"] { stroke: rgba(4,35,30,0.22); }
  .section-cream [fill^="rgba(255"] { fill: rgba(4,35,30,0.22); }
  .section-cream .btn-ghost { color: #04231E; border-color: rgba(4,35,30,0.22); }
  .section-cream .btn-ghost:hover { background: rgba(4,35,30,0.04); border-color: rgba(4,35,30,0.4); }

  /* ===== Media images ===== */
  .media { position: relative; border-radius: 16px; overflow: hidden; border: 1px solid var(--line); background: var(--bg-card); }
  .media img { width: 100%; height: 100%; object-fit: cover; display: block; }
  .media-portrait { aspect-ratio: 4 / 5; }
  .section-cream .media { border-color: rgba(4,35,30,0.12); background: #efe6d4; }
  .media-tone::after { content:""; position:absolute; inset:0; pointer-events:none;
    background: linear-gradient(150deg, rgba(4,35,30,0.08) 0%, rgba(4,35,30,0.52) 100%); }

  /* ===== Full-width image band ===== */
  .band { position: relative; overflow: hidden; }
  .band .band-bg { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
  .band .band-overlay { position:absolute; inset:0;
    background: linear-gradient(180deg, rgba(4,35,30,0.84), rgba(4,35,30,0.74)),
                radial-gradient(ellipse 50% 70% at 50% 0%, rgba(245,158,11,0.16), transparent 70%); }
  .band .band-inner { position: relative; }

  /* Card with hover border glow */
  .card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: 12px;
    transition: border-color 240ms ease, transform 240ms ease;
  }
  .card:hover { border-color: rgba(251,183,51,0.35); transform: translateY(-3px); }
  .card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 12px;
    background: radial-gradient(420px 180px at 50% 0%, rgba(245,158,11,0.08), transparent 70%);
    opacity: 0;
    transition: opacity 240ms ease;
    pointer-events: none;
  }
  .card:hover::before { opacity: 1; }

  /* Terminal panel */
  .terminal {
    background: rgba(10,53,45,0.85);
    border: 1px solid var(--line);
    border-radius: 12px;
    box-shadow: 0 24px 64px -24px rgba(0,0,0,0.7), 0 0 0 1px rgba(245,158,11,0.06);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
  }
  .terminal-bar { border-bottom: 1px solid var(--line); }
  .t-dot { width: 10px; height: 10px; border-radius: 999px; background: rgba(255,255,255,0.12); }
  .t-line {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 12.5px;
    line-height: 2;
    color: var(--ink-soft);
    white-space: nowrap;
    overflow: hidden;
    opacity: 0;
  }
  .t-line.show { opacity: 1; }
  .t-line .ok { color: #4ADE80; }
  .t-line .arrow { color: var(--accent-bright); }
  .t-line .cmd { color: var(--ink); }
  .t-cursor {
    display: inline-block;
    width: 7px; height: 14px;
    background: var(--accent-bright);
    vertical-align: -2px;
    animation: blink 1.1s steps(1) infinite;
  }
  @keyframes blink { 50% { opacity: 0; } }

  /* Process step */
  .step-num {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 11px;
    letter-spacing: 0.18em;
    color: var(--accent-bright);
  }
  .step-rule {
    height: 1px;
    background: linear-gradient(90deg, var(--line-strong), transparent);
    margin: 1.1rem 0 1.3rem;
  }

  /* Marquee */
  .marquee {
    overflow: hidden;
    mask-image: linear-gradient(90deg, transparent, black 12%, black 88%, transparent);
    -webkit-mask-image: linear-gradient(90deg, transparent, black 12%, black 88%, transparent);
  }
  .marquee-track {
    display: flex;
    gap: 0;
    width: max-content;
    animation: marquee 38s linear infinite;
  }
  .marquee:hover .marquee-track { animation-play-state: paused; }
  @keyframes marquee { to { transform: translateX(-50%); } }
  .marquee-item {
    display: inline-flex;
    align-items: center;
    gap: 1.6rem;
    padding-right: 1.6rem;
    font-weight: 500;
    font-size: clamp(20px, 3vw, 30px);
    letter-spacing: -0.02em;
    color: var(--ink-soft);
    white-space: nowrap;
  }
  .marquee-item .dot {
    width: 5px; height: 5px; border-radius: 999px;
    background: var(--accent);
    flex: none;
  }

  /* Footer logo / header logo: render brand mark white for dark canvas */
  .logo-invert { filter: brightness(0) invert(1); opacity: 0.95; }

  .smallcaps {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-size: 11px;
  }

  /* Status pill */
  .status-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    padding: 0.4rem 0.9rem;
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 11px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-soft);
    background: rgba(255,255,255,0.02);
  }
  .status-pill .pulse {
    width: 6px; height: 6px; border-radius: 999px;
    background: var(--accent-bright);
    box-shadow: 0 0 0 0 rgba(251,183,51,0.5);
    animation: pulseDot 2.4s ease-out infinite;
  }
  @keyframes pulseDot {
    0% { box-shadow: 0 0 0 0 rgba(251,183,51,0.45); }
    70% { box-shadow: 0 0 0 8px rgba(251,183,51,0); }
    100% { box-shadow: 0 0 0 0 rgba(251,183,51,0); }
  }

  /* Language switcher */
  .lang-link {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 11px;
    letter-spacing: 0.1em;
    color: var(--ink-faint);
    transition: color 200ms ease;
  }
  .lang-link:hover { color: var(--ink); }
  .lang-link.active { color: var(--ink); }

  /* Case study */
  .case-chip {
    display: inline-flex;
    align-items: center;
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 10.5px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink-soft);
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    padding: 0.3rem 0.75rem;
    white-space: nowrap;
  }
  .case-stat .num {
    font-weight: 600;
    font-size: 26px;
    letter-spacing: -0.03em;
    color: var(--ink);
    line-height: 1.1;
  }
  .case-stat .lbl {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 10px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-faint);
    margin-top: 0.35rem;
  }
  .ai-step {
    border-left: 1px solid var(--line-strong);
    padding-left: 1.1rem;
    position: relative;
  }
  .ai-step::before {
    content: "";
    position: absolute;
    left: -3.5px; top: 6px;
    width: 6px; height: 6px;
    border-radius: 999px;
    background: var(--accent-bright);
  }
  .ai-step h5 {
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 11px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--accent-bright);
    font-weight: 500;
  }

  /* FAQ accordion */
  .faq-item {
    border-bottom: 1px solid var(--line);
  }
  .faq-item summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 1.5rem 0;
    font-weight: 500;
    font-size: 17px;
    letter-spacing: -0.01em;
    color: var(--ink);
    transition: color 200ms ease;
  }
  .faq-item summary::-webkit-details-marker { display: none; }
  .faq-item summary:hover { color: var(--accent-bright); }
  .faq-item summary .faq-icon {
    flex: none;
    width: 22px; height: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-bright);
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    font-size: 16px;
    transition: transform 240ms cubic-bezier(.2,.7,.2,1);
  }
  .faq-item[open] summary .faq-icon { transform: rotate(45deg); }
  .faq-item .faq-body {
    padding: 0 0 1.6rem;
    max-width: 68ch;
    color: var(--ink-soft);
    font-size: 15.5px;
  }

  @media (max-width: 480px) {
    .t-line { font-size: 10.5px; }
  }

  @media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; transition: none; }
    .marquee-track { animation: none; }
    .t-line { opacity: 1; }
    html { scroll-behavior: auto; }
  }

  /* ===== Menu button + overlay menu (all viewports) ===== */
  .menu-btn { display: inline-flex; }
  .menu-btn svg line { transition: transform 260ms cubic-bezier(.2,.7,.2,1), opacity 200ms ease; transform-origin: center; }
  .menu-btn[aria-expanded="true"] .l1 { transform: translateY(5px) rotate(45deg); }
  .menu-btn[aria-expanded="true"] .l2 { opacity: 0; }
  .menu-btn[aria-expanded="true"] .l3 { transform: translateY(-5px) rotate(-45deg); }
  #mobile-menu {
    position: fixed; inset: 76px 0 0 0; z-index: 40;
    background: rgba(4,35,30,0.98);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    transform: translateY(-8px); opacity: 0; pointer-events: none;
    transition: opacity 260ms ease, transform 260ms cubic-bezier(.2,.7,.2,1);
    overflow-y: auto;
  }
  #mobile-menu.open { opacity: 1; transform: none; pointer-events: auto; }
  #mobile-menu a.m-link {
    display: block; padding: 1.1rem 0;
    font-size: 24px; font-weight: 600; letter-spacing: -0.02em;
    color: var(--ink); border-bottom: 1px solid var(--line);
    transition: color 200ms ease, padding-left 200ms ease;
  }
  #mobile-menu a.m-link:hover { color: var(--accent-bright); padding-left: 0.5rem; }
  #mobile-menu nav { max-width: 720px; padding-top: 2rem; padding-bottom: 3rem; }
  #mobile-menu .lang-row { margin-top: 1.5rem; padding-top: 1.75rem; border-top: 1px solid var(--line); }
  #mobile-menu .lang-row .lang-link { font-size: 15px; letter-spacing: 0.12em; }
  #mobile-menu .lang-row .lang-link.active { color: var(--accent-bright); }

  /* ===== Breadcrumb ===== */
  .crumb { font-family: 'JetBrains Mono', ui-monospace, monospace; font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-faint); }
  .crumb a { color: var(--ink-soft); transition: color 200ms ease; }
  .crumb a:hover { color: var(--ink); }
  .crumb .sep { color: var(--ink-faint); margin: 0 0.5rem; }

  /* ===== Prose (sub-page body copy) ===== */
  .prose p { color: var(--ink-soft); font-size: 17px; line-height: 1.75; margin-top: 1.25rem; max-width: 64ch; }
  .prose h3 { color: var(--ink); font-weight: 600; letter-spacing: -0.02em; font-size: 24px; margin-top: 2.75rem; }
  .prose ul { margin-top: 1.25rem; max-width: 64ch; }
  .prose li { color: var(--ink-soft); font-size: 16px; line-height: 1.7; padding-left: 1.6rem; position: relative; margin-top: 0.7rem; }
  .prose li::before { content: ""; position: absolute; left: 0; top: 0.65em; width: 6px; height: 6px; border-radius: 999px; background: var(--accent-bright); }

  /* ===== Contact form ===== */
  .field label { display:block; font-family:'JetBrains Mono',ui-monospace,monospace; font-size:11px; letter-spacing:0.14em; text-transform:uppercase; color:var(--ink-faint); margin-bottom:0.5rem; }
  .field input, .field textarea, .field select {
    width: 100%; background: rgba(255,255,255,0.03); border: 1px solid var(--line-strong);
    border-radius: 10px; padding: 0.85rem 1rem; color: var(--ink); font-size: 15px;
    font-family: inherit; transition: border-color 200ms ease, background 200ms ease;
  }
  .field input::placeholder, .field textarea::placeholder { color: var(--ink-faint); }
  .field input:focus, .field textarea:focus, .field select:focus {
    outline: none; border-color: var(--accent); background: rgba(255,255,255,0.05);
  }
  .field textarea { resize: vertical; min-height: 130px; }
  .form-note { font-size: 13px; color: var(--ink-faint); }
  .form-status { font-size: 14px; margin-top: 0.5rem; }
  .form-status.ok { color: #4ADE80; } .form-status.err { color: #F87171; }
  .hp { position: absolute; left: -9999px; opacity: 0; height: 0; width: 0; }

  /* Focus-visible for keyboard users (a11y) */
  a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
    outline: 2px solid var(--accent-bright); outline-offset: 3px; border-radius: 4px;
  }