/* 17tabs — shared styles
   Layout concept: a quiet single column of generous sections on a 12-col grid,
   with one "tab" motif (the folder-tab silhouette) carrying the identity.

   Type scale (researched defaults, fluid between ~380px and ~1440px):
   - Body: 16px mobile -> 18px desktop, line-height 1.6, measure ~65ch
   - Lead: 18px -> 22px, line-height 1.5
   - H3:   20px -> 24px, line-height 1.25
   - H2:   28px -> 42px, line-height 1.12  (1.333 ratio from 18px base)
   - H1:   40px -> 64px, line-height 1.04  (64px desktop cap, ~40px mobile)
   - Caption / labels: 13-14px, mono labels uppercase with +0.08em tracking
*/

:root {
  --bg: #fafaf8;
  --surface: #f2f1ee;
  --raised: #ffffff;
  --ink: #151414;
  --muted: #5f5b58;
  --faint: #8e8984;
  --line: #e4e2de;
  --accent: #8a1c2e;
  --accent-soft: #f4e8e9;
  --on-accent: #ffffff;

  --font-sans: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-serif: "Newsreader", Georgia, "Times New Roman", serif;
  --font-mono: "Geist Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  --fs-xs: 0.8125rem;
  --fs-sm: 0.875rem;
  --fs-base: clamp(1rem, 0.95rem + 0.22vw, 1.125rem);
  --fs-lead: clamp(1.125rem, 1.02rem + 0.45vw, 1.375rem);
  --fs-h3: clamp(1.25rem, 1.15rem + 0.4vw, 1.5rem);
  --fs-h2: clamp(1.75rem, 1.35rem + 1.65vw, 2.625rem);
  --fs-h1: clamp(2.5rem, 1.85rem + 2.6vw, 4rem);

  --gutter: clamp(1.25rem, 4vw, 3rem);
  --section: clamp(4.5rem, 9vw, 8.5rem);
  --maxw: 74rem;
  --radius: 14px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #121111;
    --surface: #1a1919;
    --raised: #1f1e1d;
    --ink: #f2f0ed;
    --muted: #a8a29d;
    --faint: #77716c;
    --line: #2b2928;
    --accent: #e48b97;
    --accent-soft: #2b1b1e;
    --on-accent: #1c0d10;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #121111;
  --surface: #1a1919;
  --raised: #1f1e1d;
  --ink: #f2f0ed;
  --muted: #a8a29d;
  --faint: #77716c;
  --line: #2b2928;
  --accent: #e48b97;
  --accent-soft: #2b1b1e;
  --on-accent: #1c0d10;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  animation: page-in 0.6s var(--ease) both;
}

@keyframes page-in { from { opacity: 0; } to { opacity: 1; } }

h1, h2, h3, h4 { margin: 0; font-weight: 500; text-wrap: balance; letter-spacing: -0.025em; }
h1 { font-size: var(--fs-h1); line-height: 1.04; letter-spacing: -0.035em; }
h2 { font-size: var(--fs-h2); line-height: 1.12; }
h3 { font-size: var(--fs-h3); line-height: 1.25; letter-spacing: -0.015em; }
p { margin: 0; text-wrap: pretty; }
em.serif, .serif { font-family: var(--font-serif); font-style: italic; font-weight: 400; letter-spacing: -0.01em; }
a { color: inherit; }
img, svg { max-width: 100%; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }

.label {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.lead { font-size: var(--fs-lead); line-height: 1.5; color: var(--muted); max-width: 38ch; }
.prose { max-width: 65ch; color: var(--muted); display: grid; gap: 1.1em; }
.muted { color: var(--muted); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: env(safe-area-inset-top, 0px);
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease);
}
.site-header.scrolled { border-bottom-color: var(--line); }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; height: 4.25rem; }
.brand { display: inline-flex; align-items: center; gap: 0.55rem; text-decoration: none; font-weight: 600; letter-spacing: -0.03em; font-size: 1.1875rem; }
.brand svg { width: 26px; height: 20px; color: var(--accent); flex: none; }
.nav-links { display: flex; align-items: center; gap: 2rem; list-style: none; margin: 0; padding: 0; }
.nav-links a { text-decoration: none; font-size: 0.9375rem; color: var(--muted); position: relative; transition: color 0.2s; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--ink); }
.nav-links a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -6px; height: 1px; background: currentColor;
  transform: scaleX(0); transform-origin: left; transition: transform 0.35s var(--ease);
}
.nav-links a:hover::after, .nav-links a[aria-current="page"]::after { transform: scaleX(1); }
.menu-btn { display: none; background: none; border: 0; padding: 0.5rem; margin-right: -0.5rem; color: var(--ink); cursor: pointer; }
.menu-btn span { display: block; width: 20px; height: 1.5px; background: currentColor; transition: transform 0.3s var(--ease); }
.menu-btn span + span { margin-top: 6px; }
.menu-btn[aria-expanded="true"] span:first-child { transform: translateY(3.75px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:last-child { transform: translateY(-3.75px) rotate(-45deg); }

@media (max-width: 820px) {
  .menu-btn { display: block; }
  .nav-links {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 0.5rem var(--gutter) 1.5rem;
    background: var(--bg); border-bottom: 1px solid var(--line);
    opacity: 0; transform: translateY(-8px); pointer-events: none;
    transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
  }
  .nav-links.open { opacity: 1; transform: none; pointer-events: auto; }
  .nav-links li { border-top: 1px solid var(--line); }
  .nav-links li:first-child { border-top: 0; }
  .nav-links a { display: block; padding: 0.9rem 0; font-size: 1.0625rem; }
  .nav-links a::after { display: none; }
  .nav-links .btn { margin-top: 1rem; width: 100%; justify-content: center; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.6rem;
  padding: 0.8rem 1.35rem; border-radius: 999px;
  font: inherit; font-size: 0.9375rem; font-weight: 500; text-decoration: none;
  border: 1px solid var(--ink); background: var(--ink); color: var(--bg);
  cursor: pointer; transition: transform 0.35s var(--ease), background 0.25s, color 0.25s, border-color 0.25s;
}
.btn:hover { transform: translateY(-1px); background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn .arrow { transition: transform 0.35s var(--ease); }
.btn:hover .arrow { transform: translateX(3px); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn.ghost:hover { border-color: var(--ink); background: transparent; color: var(--ink); }
.nav-links .btn { color: var(--bg); padding: 0.55rem 1.1rem; }
.nav-links .btn:hover { color: var(--on-accent); }
.nav-links .btn::after { display: none; }
.text-link { display: inline-flex; gap: 0.4rem; align-items: center; text-decoration: none; font-weight: 500; border-bottom: 1px solid var(--line); padding-bottom: 2px; transition: border-color 0.25s; }
.text-link:hover { border-color: var(--ink); }

/* ---------- Sections ---------- */
section { padding-block: var(--section); }
.section-head { display: grid; gap: 1rem; margin-bottom: clamp(2.5rem, 5vw, 4rem); max-width: 44rem; }
.rule { border: 0; border-top: 1px solid var(--line); margin: 0; }

/* Page hero (inner pages) */
.page-hero { padding-block: clamp(4rem, 9vw, 7.5rem) clamp(2.5rem, 5vw, 4rem); }
.page-hero .inner { display: grid; gap: 1.5rem; max-width: 50rem; }

/* ---------- Home hero ---------- */
.hero { padding-block: clamp(3.5rem, 8vw, 7rem) clamp(3.5rem, 7vw, 6rem); }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: clamp(2.5rem, 6vw, 5rem); align-items: center; }
.hero-copy { display: grid; gap: 1.75rem; min-width: 0; }
.hero-copy h1 em { color: var(--accent); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; margin-top: 0.5rem; }
.hero-meta span { display: inline-flex; align-items: center; gap: 0.5rem; font-size: var(--fs-sm); color: var(--muted); }
.hero-meta span::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); }

@media (max-width: 900px) { .hero-grid { grid-template-columns: minmax(0, 1fr); } }
.hero-center { justify-items: center; text-align: center; max-width: 52rem; margin-inline: auto; }
.hero-center .lead { max-width: 34ch; }
.hero-center .hero-actions, .hero-center .hero-meta { justify-content: center; }
.pillars.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 820px) { .pillars.two { grid-template-columns: minmax(0, 1fr); } }

/* Hierarchy visual — the ClickUp structure we build */
.tree {
  background: var(--raised); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.25rem 1.25rem 1.5rem; min-width: 0;
  box-shadow: 0 1px 0 var(--line), 0 30px 60px -40px color-mix(in srgb, var(--ink) 35%, transparent);
}
.tree-top { display: flex; align-items: center; justify-content: space-between; padding-bottom: 1rem; margin-bottom: 0.75rem; border-bottom: 1px solid var(--line); }
.tree-top .dots { display: flex; gap: 6px; }
.tree-top .dots i { width: 8px; height: 8px; border-radius: 50%; background: var(--line); }
.tree ol { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.35rem; }
.tree li {
  display: flex; align-items: center; gap: 0.75rem; min-width: 0;
  padding: 0.6rem 0.75rem; border-radius: 9px;
  padding-left: calc(0.75rem + var(--d, 0) * 1.25rem);
  animation: row-in 0.7s var(--ease) both;
  animation-delay: calc(0.25s + var(--i, 0) * 0.09s);
}
.tree li.on { background: var(--accent-soft); }
.tree .kind { font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--faint); width: 5.5rem; flex: none; }
.tree .name { font-size: 0.9375rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.tree .tag { margin-left: auto; flex: none; font-family: var(--font-mono); font-size: 0.6875rem; padding: 0.15rem 0.5rem; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); }
.tree li.on .tag { border-color: transparent; background: var(--accent); color: var(--on-accent); }
@keyframes row-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@media (max-width: 480px) { .tree .kind { width: 4.25rem; } .tree li { padding-left: calc(0.6rem + var(--d, 0) * 0.7rem); } }

/* ---------- Client strip ---------- */
.clients { padding-block: clamp(2.5rem, 5vw, 3.5rem); border-block: 1px solid var(--line); }
.clients .label { text-align: center; margin-bottom: 1.75rem; }
.marquee { overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.marquee-track { display: flex; width: max-content; animation: slide 48s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee ul { display: flex; align-items: center; gap: clamp(2.5rem, 6vw, 4.5rem); list-style: none; margin: 0; padding: 0 clamp(1.25rem, 3vw, 2.25rem); }
.marquee li { white-space: nowrap; color: var(--muted); font-size: 1.25rem; transition: color 0.25s; }
.marquee li:hover { color: var(--ink); }
@keyframes slide { to { transform: translateX(-50%); } }
/* Wordmark styles so each client name reads like its own logo */
.wm-a { font-weight: 600; letter-spacing: -0.04em; }
.wm-b { font-family: var(--font-serif); font-style: italic; font-size: 1.4rem !important; }
.wm-c { font-family: var(--font-mono); font-size: 1rem !important; text-transform: uppercase; letter-spacing: 0.14em; }
.wm-d { font-weight: 300; letter-spacing: 0.02em; }
.wm-e { font-family: var(--font-serif); font-weight: 500; font-size: 1.35rem !important; letter-spacing: -0.01em; }
.wm-f { font-weight: 700; text-transform: uppercase; font-size: 1.05rem !important; letter-spacing: 0.06em; }

/* ---------- Pillars / features ---------- */
.pillars { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--line); }
.pillar { padding: 2rem 2rem 0 0; display: grid; gap: 0.85rem; align-content: start; }
.pillar + .pillar { padding-left: 2rem; border-left: 1px solid var(--line); }
.pillar p { color: var(--muted); }
.pillar ul { list-style: none; margin: 0.5rem 0 0; padding: 0; display: grid; gap: 0.4rem; font-size: var(--fs-sm); color: var(--muted); }
.pillar li::before { content: "—"; color: var(--faint); margin-right: 0.5rem; }
@media (max-width: 820px) {
  .pillars { grid-template-columns: minmax(0, 1fr); }
  .pillar, .pillar + .pillar { padding: 2rem 0; border-left: 0; }
  .pillar + .pillar { border-top: 1px solid var(--line); }
}

/* Process steps (a real sequence) */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 2rem; counter-reset: step; }
.steps li { display: grid; gap: 0.6rem; align-content: start; padding-top: 1.25rem; border-top: 1px solid var(--ink); counter-increment: step; }
.steps li::before { content: "Week " attr(data-when); font-family: var(--font-mono); font-size: var(--fs-xs); letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); }
.steps p { color: var(--muted); font-size: 0.9375rem; }
@media (max-width: 900px) { .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .steps { grid-template-columns: minmax(0, 1fr); } }

/* Feature work card */
.work {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(2rem, 5vw, 4rem); align-items: center;
  background: var(--surface); border-radius: calc(var(--radius) + 6px); padding: clamp(1.75rem, 5vw, 4rem);
}
.work-copy { display: grid; gap: 1.25rem; min-width: 0; }
.stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.stat { display: grid; gap: 0.25rem; padding-top: 1rem; border-top: 1px solid var(--line); }
.stat b { font-size: clamp(1.75rem, 1.4rem + 1.4vw, 2.5rem); font-weight: 500; letter-spacing: -0.03em; line-height: 1.1; font-variant-numeric: tabular-nums; }
.stat span { font-size: var(--fs-sm); color: var(--muted); }
@media (max-width: 820px) { .work { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 520px) { .stats { grid-template-columns: minmax(0, 1fr); } }

/* CTA */
.cta { text-align: center; }
.cta .inner { display: grid; gap: 1.5rem; justify-items: center; max-width: 40rem; margin-inline: auto; }
.cta .lead { max-width: 34ch; }

/* ---------- Pricing ---------- */
.tiers { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; align-items: stretch; }
.tier {
  display: flex; flex-direction: column; gap: 1.5rem;
  padding: 2rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--bg);
  transition: transform 0.45s var(--ease), border-color 0.3s;
}
.tier:hover { transform: translateY(-4px); border-color: color-mix(in srgb, var(--ink) 30%, var(--line)); }
.tier.featured { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.tier.featured .muted, .tier.featured .label, .tier.featured li { color: color-mix(in srgb, var(--bg) 68%, var(--ink)); }
.tier.featured .btn { background: var(--bg); color: var(--ink); border-color: var(--bg); }
.tier.featured .btn:hover { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.tier-head { display: grid; gap: 0.5rem; }
.tier-head .row { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.badge { font-family: var(--font-mono); font-size: 0.6875rem; letter-spacing: 0.08em; text-transform: uppercase; padding: 0.25rem 0.6rem; border-radius: 999px; background: var(--accent); color: var(--on-accent); }
.price { display: flex; align-items: baseline; gap: 0.5rem; }
.price b { font-size: clamp(2.25rem, 1.9rem + 1.2vw, 2.875rem); font-weight: 500; letter-spacing: -0.035em; line-height: 1; font-variant-numeric: tabular-nums; }
.price span { font-size: var(--fs-sm); }
.tier ul { list-style: none; margin: 0; padding: 1.5rem 0 0; display: grid; gap: 0.7rem; border-top: 1px solid color-mix(in srgb, currentColor 14%, transparent); font-size: 0.9375rem; flex: 1; align-content: start; }
.tier li { display: grid; grid-template-columns: 1rem minmax(0, 1fr); gap: 0.6rem; }
.tier li::before { content: ""; width: 0.6rem; height: 0.35rem; margin-top: 0.5rem; border-left: 1.5px solid var(--accent); border-bottom: 1.5px solid var(--accent); transform: rotate(-45deg); }
.tier .btn { justify-content: center; }
@media (max-width: 960px) { .tiers { grid-template-columns: minmax(0, 1fr); max-width: 34rem; margin-inline: auto; } }

/* Comparison table */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; min-width: 40rem; font-size: 0.9375rem; }
th, td { text-align: left; padding: 1rem 1.25rem; border-bottom: 1px solid var(--line); }
th { font-weight: 500; }
thead th { font-family: var(--font-mono); font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); font-weight: 400; background: var(--surface); }
tbody tr:last-child td, tbody tr:last-child th { border-bottom: 0; }
td { color: var(--muted); }
td.yes { color: var(--ink); }

/* Add-ons */
.addons { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2rem; }
.addon { display: grid; gap: 0.5rem; align-content: start; padding-top: 1.25rem; border-top: 1px solid var(--line); }
.addon .row { display: flex; justify-content: space-between; gap: 1rem; align-items: baseline; }
.addon .row span { font-family: var(--font-mono); font-size: var(--fs-sm); color: var(--muted); white-space: nowrap; }
.addon p { color: var(--muted); font-size: 0.9375rem; }
@media (max-width: 820px) { .addons { grid-template-columns: minmax(0, 1fr); } }

/* ---------- FAQ ---------- */
.faq-layout { display: grid; grid-template-columns: minmax(0, 14rem) minmax(0, 1fr); gap: clamp(2rem, 6vw, 6rem); align-items: start; }
.faq-nav { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 6rem); display: grid; gap: 0.25rem; }
.faq-nav a { text-decoration: none; color: var(--muted); font-size: 0.9375rem; padding: 0.35rem 0; transition: color 0.2s; }
.faq-nav a:hover, .faq-nav a.active { color: var(--ink); }
.faq-group { display: grid; gap: 0.5rem; scroll-margin-top: 6rem; }
.faq-group + .faq-group { margin-top: 4rem; }
.faq-group > .label { margin-bottom: 0.75rem; }
details { border-bottom: 1px solid var(--line); }
details:first-of-type { border-top: 1px solid var(--line); }
summary {
  list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 1.5rem;
  padding: 1.35rem 0; font-size: clamp(1.0625rem, 1rem + 0.3vw, 1.1875rem); font-weight: 500; letter-spacing: -0.01em;
}
summary::-webkit-details-marker { display: none; }
summary .plus { position: relative; width: 14px; height: 14px; flex: none; }
summary .plus::before, summary .plus::after { content: ""; position: absolute; top: 50%; left: 0; width: 14px; height: 1.5px; background: currentColor; transition: transform 0.35s var(--ease); }
summary .plus::after { transform: rotate(90deg); }
details[open] summary .plus::after { transform: rotate(0deg); }
.answer { overflow: hidden; }
.answer > div { padding-bottom: 1.5rem; color: var(--muted); max-width: 62ch; display: grid; gap: 0.9em; }
@media (max-width: 820px) {
  .faq-layout { grid-template-columns: minmax(0, 1fr); }
  .faq-nav { position: static; display: flex; flex-wrap: wrap; gap: 0.5rem; }
  .faq-nav a { padding: 0.4rem 0.85rem; border: 1px solid var(--line); border-radius: 999px; font-size: var(--fs-sm); }
}

/* ---------- Case study ---------- */
.template-note {
  display: flex; gap: 0.75rem; align-items: center; justify-content: center; flex-wrap: wrap;
  padding: 0.6rem var(--gutter); background: var(--accent-soft); color: var(--ink); font-size: var(--fs-sm); text-align: center;
}
.cs-meta { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.5rem; padding-top: 1.75rem; border-top: 1px solid var(--line); margin-top: 1rem; }
.cs-meta div { display: grid; gap: 0.3rem; }
.cs-meta b { font-weight: 500; }
@media (max-width: 720px) { .cs-meta { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.cs-cover {
  aspect-ratio: 16 / 7; max-width: 100%; border-radius: calc(var(--radius) + 6px); background: var(--surface);
  display: grid; place-items: center; overflow: hidden; position: relative;
}
.cs-cover .board { width: min(86%, 46rem); display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0.75rem; }
.cs-cover .col { display: grid; gap: 0.5rem; align-content: start; }
.cs-cover .col > span { font-family: var(--font-mono); font-size: 0.625rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); padding-bottom: 0.25rem; }
.cs-cover .card { height: 2.6rem; border-radius: 8px; background: var(--raised); border: 1px solid var(--line); position: relative; }
.cs-cover .card::after { content: ""; position: absolute; left: 0.6rem; top: 0.7rem; width: 55%; height: 5px; border-radius: 3px; background: var(--line); }
.cs-cover .card.hot::before { content: ""; position: absolute; right: 0.6rem; top: 0.65rem; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
@media (max-width: 560px) { .cs-cover { aspect-ratio: 4 / 3; } .cs-cover .board { grid-template-columns: repeat(2, minmax(0, 1fr)); } .cs-cover .col:nth-child(n+3) { display: none; } }

.cs-body { display: grid; grid-template-columns: minmax(0, 14rem) minmax(0, 1fr); gap: clamp(2rem, 6vw, 6rem); }
.cs-body + .cs-body { margin-top: clamp(3.5rem, 7vw, 6rem); }
.cs-body h2 { font-size: clamp(1.375rem, 1.2rem + 0.8vw, 1.875rem); }
@media (max-width: 820px) { .cs-body { grid-template-columns: minmax(0, 1fr); gap: 1rem; } }
.phases { list-style: none; margin: 1rem 0 0; padding: 0; display: grid; gap: 0; }
.phases li { display: grid; grid-template-columns: 6.5rem minmax(0, 1fr); gap: 1.5rem; padding: 1.25rem 0; border-top: 1px solid var(--line); }
.phases li:last-child { border-bottom: 1px solid var(--line); }
.phases .label { padding-top: 0.2rem; }
.phases b { font-weight: 500; display: block; margin-bottom: 0.25rem; color: var(--ink); }
@media (max-width: 520px) { .phases li { grid-template-columns: minmax(0, 1fr); gap: 0.25rem; } }
.quote { padding: clamp(2rem, 5vw, 3.5rem); border-radius: calc(var(--radius) + 6px); background: var(--surface); display: grid; gap: 1.5rem; }
.quote blockquote { margin: 0; font-family: var(--font-serif); font-size: clamp(1.5rem, 1.2rem + 1.3vw, 2.25rem); line-height: 1.3; letter-spacing: -0.015em; }
.chips { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.chips span { font-size: var(--fs-sm); padding: 0.3rem 0.75rem; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); }

/* Case study: number cards + summary table */
.stat-cards { display: grid; grid-template-columns: repeat(var(--cols, 4), minmax(0, 1fr)); gap: 1rem; }
.stat-card { display: grid; gap: 0.6rem; align-content: start; padding: 1.75rem 1.5rem; border-radius: var(--radius); background: var(--surface); }
.stat-card b { font-size: clamp(2rem, 1.6rem + 1.6vw, 3rem); font-weight: 500; letter-spacing: -0.04em; line-height: 1; font-variant-numeric: tabular-nums; }
.stat-card b em { color: var(--accent); }
.stat-card span { font-size: var(--fs-sm); color: var(--muted); line-height: 1.45; }
@media (max-width: 900px) { .stat-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 440px) { .stat-cards { grid-template-columns: minmax(0, 1fr); } }

.cs-table { border-top: 1px solid var(--ink); }
.cs-row { display: grid; grid-template-columns: minmax(0, 13rem) minmax(0, 1fr); gap: clamp(1rem, 4vw, 4rem); padding-block: clamp(1.5rem, 3vw, 2.25rem); border-bottom: 1px solid var(--line); }
.cs-row > h2 { font-family: var(--font-mono); font-size: var(--fs-xs); font-weight: 400; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); padding-top: 0.35rem; }
.cs-row > div { display: grid; gap: 0.9rem; max-width: 62ch; min-width: 0; }
.cs-row p { color: var(--muted); }
.cs-row p.big { color: var(--ink); font-size: var(--fs-lead); line-height: 1.45; letter-spacing: -0.01em; }
.cs-row ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.6rem; }
.cs-row li { display: grid; grid-template-columns: 1.1rem minmax(0, 1fr); gap: 0.5rem; color: var(--muted); }
.cs-row li::before { content: "—"; color: var(--faint); }
.cs-row li b { color: var(--ink); font-weight: 500; }
@media (max-width: 720px) { .cs-row { grid-template-columns: minmax(0, 1fr); gap: 0.75rem; } }

/* Work index */
.work-list { display: grid; gap: 1rem; }
.work-item {
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 1.5rem 3rem; align-items: end;
  padding: clamp(1.5rem, 4vw, 2.5rem); border: 1px solid var(--line); border-radius: calc(var(--radius) + 4px);
  text-decoration: none; transition: border-color 0.3s, transform 0.45s var(--ease), background 0.3s;
}
.work-item:hover { border-color: color-mix(in srgb, var(--ink) 35%, var(--line)); transform: translateY(-3px); background: var(--surface); }
.work-item .copy { display: grid; gap: 0.75rem; min-width: 0; }
.work-item h2 { font-size: clamp(1.375rem, 1.15rem + 1vw, 2rem); }
.work-item p { color: var(--muted); max-width: 58ch; }
.work-item .go { display: inline-flex; align-items: center; gap: 0.5rem; font-weight: 500; white-space: nowrap; }
.work-item .go span { transition: transform 0.35s var(--ease); }
.work-item:hover .go span { transform: translateX(4px); }
@media (max-width: 720px) { .work-item { grid-template-columns: minmax(0, 1fr); } }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr); gap: clamp(2.5rem, 7vw, 6rem); align-items: start; }
.contact-side { display: grid; gap: 2.5rem; }
.contact-item { display: grid; gap: 0.4rem; padding-top: 1.25rem; border-top: 1px solid var(--line); }
.email-row { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }
.email-row code { font-family: var(--font-sans); font-size: var(--fs-lead); user-select: all; }
.copy-btn { font: inherit; font-size: var(--fs-xs); font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.08em; background: none; border: 1px solid var(--line); border-radius: 999px; padding: 0.3rem 0.7rem; color: var(--muted); cursor: pointer; transition: border-color 0.2s, color 0.2s; }
.copy-btn:hover { border-color: var(--ink); color: var(--ink); }
form { display: grid; gap: 1.25rem; }
.field-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; }
@media (max-width: 600px) { .field-row { grid-template-columns: minmax(0, 1fr); } }
.field { display: grid; gap: 0.45rem; min-width: 0; }
.field label, .field legend { font-size: var(--fs-sm); font-weight: 500; padding: 0; }
.field input, .field textarea, .field select {
  font: inherit; font-size: 1rem; color: var(--ink); background: var(--raised);
  border: 1px solid var(--line); border-radius: 10px; padding: 0.8rem 0.95rem; width: 100%;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.field textarea { min-height: 8.5rem; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--ink); box-shadow: 0 0 0 3px var(--accent-soft); }
.field .err { font-size: var(--fs-sm); color: var(--accent); }
fieldset.field { border: 0; margin: 0; padding: 0; }
.pills { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.pills input { position: absolute; opacity: 0; pointer-events: none; }
.pills label { font-weight: 400; padding: 0.5rem 0.95rem; border: 1px solid var(--line); border-radius: 999px; cursor: pointer; transition: all 0.2s; }
.pills input:checked + label { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.pills input:focus-visible + label { outline: 2px solid var(--accent); outline-offset: 2px; }
.form-done { padding: 2rem; border-radius: var(--radius); background: var(--surface); display: grid; gap: 0.75rem; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding-block: clamp(3rem, 6vw, 4.5rem) 2rem; }
.footer-grid { display: grid; grid-template-columns: minmax(0, 2fr) repeat(3, minmax(0, 1fr)); gap: 2rem; }
.footer-grid h4 { font-family: var(--font-mono); font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: 0.08em; color: var(--faint); font-weight: 400; margin-bottom: 1rem; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.55rem; }
.footer-grid a { text-decoration: none; color: var(--muted); font-size: 0.9375rem; transition: color 0.2s; }
.footer-grid a:hover { color: var(--ink); }
.footer-brand { display: grid; gap: 1rem; align-content: start; }
.footer-brand p { color: var(--muted); font-size: 0.9375rem; max-width: 30ch; }
.footer-base { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; margin-top: 3.5rem; padding-top: 1.5rem; border-top: 1px solid var(--line); font-size: var(--fs-xs); color: var(--faint); }
.footer-base p { max-width: 60ch; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .footer-brand { grid-column: 1 / -1; } }

/* ---------- Scroll reveal (content is visible at rest; JS only animates below-the-fold blocks) ---------- */
.reveal { transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
.reveal.pending { opacity: 0; transform: translateY(18px); }
.stagger > * { transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); transition-delay: calc(var(--n, 0) * 80ms); }
.stagger.pending > * { opacity: 0; transform: translateY(14px); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .reveal.pending, .stagger.pending > * { opacity: 1; transform: none; }
}