/* ============================================================
   WorldStage — shared styles
   Palette: Pastel Blue on Mist (Brand Direction 2B)
   Type: Fraunces (display) × Instrument Sans (body)
   ============================================================ */

:root {
  --mist: #F4F7FA;
  --powder: #DDE8F2;
  --card: #FAFCFE;
  --ink: #1E2A38;
  --ink-soft: #55626E;
  --accent: #46759E;
  --accent-soft: #8FB8DC;
  --accent-dark: #35597B;
  --slate: #2E4A63;
  --sand: #C9AC7C;
  --hairline: rgba(30, 42, 56, 0.14);
  --hairline-soft: rgba(30, 42, 56, 0.08);

  --serif: "Fraunces", Georgia, serif;
  --sans: "Instrument Sans", -apple-system, sans-serif;

  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-in-out: cubic-bezier(0.77, 0, 0.175, 1);

  --wrap: 1120px;
  --gutter: clamp(20px, 5vw, 48px);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--mist);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

img { max-width: 100%; display: block; }
a { color: inherit; }

/* paper grain over everything */
.grain {
  position: fixed; inset: 0; pointer-events: none; z-index: 2000; opacity: 0.3;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3CfeComponentTransfer%3E%3CfeFuncA type='linear' slope='0.05'/%3E%3C/feComponentTransfer%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- typography helpers ---------- */
.kicker {
  font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--accent); font-weight: 600;
}
.display {
  font-family: var(--serif); font-weight: 400;
  letter-spacing: -0.015em; line-height: 1.06;
}
.display em, .serif-em { font-family: var(--serif); font-style: italic; color: var(--accent); }
.sec-num {
  font-family: var(--serif); font-style: italic; font-size: 15px; color: var(--accent);
}
.lede { font-size: 18px; color: var(--ink-soft); max-width: 54ch; }

/* ---------- header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in srgb, var(--mist) 88%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--hairline-soft);
}
.nav {
  display: flex; align-items: center; gap: 32px;
  height: 72px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.nav-logo svg { width: 34px; height: 34px; }
.nav-logo .wordmark {
  font-family: var(--serif); font-size: 22px; font-weight: 500; letter-spacing: -0.02em;
}
.nav-logo .wordmark em { font-style: italic; font-weight: 400; color: var(--accent); }
.nav-links { display: flex; gap: 28px; margin-left: auto; align-items: center; }
.nav-links a {
  text-decoration: none; font-size: 15px; font-weight: 500; color: var(--ink-soft);
  position: relative; padding: 4px 0;
  transition: color 200ms ease;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1.5px; width: 100%;
  background: var(--accent); transform: scaleX(0); transform-origin: left;
  transition: transform 250ms var(--ease-out);
}
.nav-links a[aria-current="page"] { color: var(--ink); }
.nav-links a[aria-current="page"]::after { transform: scaleX(1); }
@media (hover: hover) and (pointer: fine) {
  .nav-links a:hover { color: var(--ink); }
  .nav-links a:hover::after { transform: scaleX(1); }
}
.nav-cta { margin-left: 8px; }

/* mobile nav */
.nav-toggle {
  display: none; margin-left: auto;
  background: none; border: none; cursor: pointer; padding: 8px;
}
.nav-toggle svg { width: 26px; height: 26px; stroke: var(--ink); }
@media (max-width: 820px) {
  .nav-links {
    display: none;
    position: absolute; top: 72px; left: 0; right: 0;
    background: var(--mist); border-bottom: 1px solid var(--hairline);
    flex-direction: column; align-items: flex-start;
    padding: 24px var(--gutter) 32px; gap: 20px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { font-size: 18px; }
  .nav-toggle { display: block; }
  .nav-cta { margin-left: 0; }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--sans); font-size: 15px; font-weight: 600;
  padding: 13px 26px; border-radius: 999px; border: none; cursor: pointer;
  background: var(--ink); color: var(--mist); text-decoration: none;
  transition: transform 160ms var(--ease-out), background 220ms ease;
}
.btn:active { transform: scale(0.97); }
@media (hover: hover) and (pointer: fine) {
  .btn:hover { background: var(--accent); }
}
.btn.ghost {
  background: transparent; color: var(--ink);
  border: 1px solid var(--ink);
  position: relative; overflow: hidden; z-index: 1;
}
.btn.ghost::after {
  content: ""; position: absolute; inset: 0; background: var(--accent);
  clip-path: inset(0 100% 0 0); transition: clip-path 320ms var(--ease-out); z-index: -1;
}
@media (hover: hover) and (pointer: fine) {
  .btn.ghost:hover { color: var(--mist); border-color: var(--accent); background: transparent; }
  .btn.ghost:hover::after { clip-path: inset(0 0 0 0); }
}
.btn.small { padding: 10px 20px; font-size: 14px; }
.text-link {
  font-weight: 600; font-size: 15px; color: var(--accent-dark);
  text-decoration: none; border-bottom: 1.5px solid var(--accent-soft);
  padding-bottom: 2px; transition: border-color 200ms ease, color 200ms ease;
}
@media (hover: hover) and (pointer: fine) {
  .text-link:hover { color: var(--accent); border-color: var(--accent); }
}

/* ---------- scroll reveals ---------- */
.reveal {
  opacity: 0; transform: translateY(14px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}
.reveal.in { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { transform: none; transition: opacity 300ms ease; }
  html { scroll-behavior: auto; }
}

/* ---------- sections ---------- */
.section { padding-block: clamp(64px, 10vw, 110px); }
.section + .section { border-top: 1px solid var(--hairline-soft); }
.sec-head { display: flex; align-items: baseline; gap: 18px; margin-bottom: clamp(32px, 5vw, 56px); }
.sec-head h2 { font-family: var(--serif); font-weight: 500; font-size: clamp(26px, 3.4vw, 36px); letter-spacing: -0.01em; }
.sec-head .aside { font-size: 14px; color: var(--ink-soft); margin-left: auto; max-width: 320px; text-align: right; }
@media (max-width: 640px) {
  .sec-head { flex-wrap: wrap; }
  .sec-head .aside { margin-left: 52px; text-align: left; }
}

/* ---------- cards ---------- */
.card {
  background: var(--card); border: 1px solid var(--hairline-soft); border-radius: 20px;
}

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--hairline);
  background: var(--powder);
  padding: clamp(48px, 7vw, 80px) 0 36px;
  margin-top: clamp(64px, 10vw, 110px);
}
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px;
  padding-bottom: 48px; border-bottom: 1px solid var(--hairline);
}
.footer-brand p { font-size: 14px; color: var(--ink-soft); max-width: 30ch; margin-top: 14px; }
.footer-col h4 {
  font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-soft); font-weight: 600; margin-bottom: 16px;
}
.footer-col ul { list-style: none; display: grid; gap: 10px; }
.footer-col a { text-decoration: none; font-size: 15px; color: var(--ink); transition: color 200ms ease; }
@media (hover: hover) and (pointer: fine) { .footer-col a:hover { color: var(--accent); } }
.footer-bottom {
  display: flex; align-items: center; gap: 24px; padding-top: 28px;
  font-size: 13px; color: var(--ink-soft); flex-wrap: wrap;
}
.footer-bottom .seal { margin-left: auto; }
@media (max-width: 820px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ---------- browser frame (portfolio previews) ---------- */
.frame {
  border-radius: 16px; overflow: hidden; border: 1px solid var(--hairline-soft);
  background: var(--card); box-shadow: 0 1px 2px rgba(30,42,56,0.05);
}
.frame .chrome {
  display: flex; gap: 5px; padding: 9px 12px; border-bottom: 1px solid var(--hairline-soft);
  background: var(--card);
}
.frame .chrome i { width: 7px; height: 7px; border-radius: 50%; background: var(--powder); display: block; }
.frame img { width: 100%; display: block; }
.frame .scrolly {
  max-height: 560px; overflow-y: auto; overscroll-behavior: contain;
  scrollbar-width: thin; scrollbar-color: var(--accent-soft) transparent;
}

/* ---------- portfolio grid ---------- */
.pf-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(24px, 4vw, 40px); }
.pf-card { text-decoration: none; display: block; }
.pf-card .frame { transition: transform 350ms var(--ease-out), box-shadow 350ms var(--ease-out); }
@media (hover: hover) and (pointer: fine) {
  .pf-card:hover .frame { transform: translateY(-5px); box-shadow: 0 24px 48px -20px rgba(30,42,56,0.25); }
}
.pf-card .shot { aspect-ratio: 16 / 11; overflow: hidden; }
.pf-card .shot img { height: 100%; object-fit: cover; object-position: top; }
.pf-meta { display: flex; align-items: baseline; gap: 12px; padding: 16px 4px 0; }
.pf-meta .name { font-family: var(--serif); font-size: 22px; font-weight: 500; color: var(--ink); }
.pf-meta .industry {
  font-size: 12px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.1em;
  margin-left: auto; white-space: nowrap;
}
.pf-blurb { padding: 6px 4px 0; font-size: 14.5px; color: var(--ink-soft); max-width: 52ch; }
@media (max-width: 720px) { .pf-grid { grid-template-columns: 1fr; } }

/* ---------- case study ---------- */
.case-hero { padding-top: clamp(48px, 7vw, 90px); padding-bottom: clamp(28px, 4vw, 44px); }
.case-hero h1 { font-size: clamp(36px, 5vw, 58px); max-width: 16ch; margin: 16px 0 18px; }
.case-grid { display: grid; grid-template-columns: 2fr 1fr; gap: clamp(28px, 5vw, 56px); align-items: start; }
.case-aside { position: sticky; top: 96px; display: grid; gap: 20px; }
.case-aside .fact { border-top: 1px solid var(--hairline); padding-top: 14px; }
.case-aside .fact h4 {
  font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-soft); font-weight: 600; margin-bottom: 6px;
}
.case-aside .fact p { font-size: 15px; }
.case-body h2 { font-family: var(--serif); font-weight: 500; font-size: clamp(22px, 2.6vw, 28px); margin: 36px 0 12px; }
.case-body h2:first-child { margin-top: 0; }
.case-body p { color: var(--ink-soft); max-width: 62ch; margin-bottom: 14px; }
.case-body .pull {
  font-family: var(--serif); font-style: italic; font-size: 21px; line-height: 1.5; color: var(--ink);
  border-left: 2px solid var(--accent); padding-left: 20px; margin: 26px 0;
}
.case-shots { display: grid; grid-template-columns: 2fr 1fr; gap: 20px; align-items: start; margin-top: clamp(36px, 5vw, 56px); }
@media (max-width: 820px) {
  .case-grid, .case-shots { grid-template-columns: 1fr; }
  .case-aside { position: static; }
}
.case-next {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  border: 1px solid var(--hairline); border-radius: 20px; padding: 28px 32px;
  text-decoration: none; margin-top: clamp(40px, 6vw, 64px);
  transition: transform 300ms var(--ease-out), box-shadow 300ms var(--ease-out);
}
@media (hover: hover) and (pointer: fine) {
  .case-next:hover { transform: translateY(-3px); box-shadow: 0 16px 36px -18px rgba(30,42,56,0.2); }
}
.case-next .label { font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-soft); font-weight: 600; }
.case-next .title { font-family: var(--serif); font-size: 24px; font-weight: 500; color: var(--ink); }
.case-next .arrow { font-family: var(--serif); font-size: 28px; color: var(--accent); }