/* ————————————————————————————————
   曾廖东 · 个人主页
   纸张、墨色与一点朱红
   ———————————————————————————————— */

:root {
  --paper: #f4efe6;
  --paper-2: #ebe3d6;
  --ink: #17130f;
  --ink-soft: #4b423a;
  --muted: #6f6357;
  --line: rgba(23, 19, 15, 0.14);
  --line-strong: rgba(23, 19, 15, 0.28);
  --accent: #b4452a;
  --accent-wash: rgba(180, 69, 42, 0.14);

  --serif: "Songti SC", "Source Han Serif SC", "Noto Serif SC", Georgia, "Times New Roman", serif;
  --sans: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --pad: clamp(20px, 5vw, 64px);
  --header-h: 76px;
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.045;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.55'/%3E%3C/svg%3E");
  background-size: 160px 160px;
}

body.no-scroll { overflow: hidden; }

main,
.site-footer { position: relative; z-index: 1; }

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

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

.skip-link {
  position: fixed;
  top: -100px;
  left: 12px;
  z-index: 200;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--paper);
  font-size: 13px;
  text-decoration: none;
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 12px; }

/* ——— Header ——— */

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  border-bottom: 1px solid transparent;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease);
}

.site-header.is-scrolled,
.site-header.menu-open {
  background: rgba(244, 239, 230, 0.88);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.4vw, 32px);
  max-width: 1320px;
  height: var(--header-h);
  margin: 0 auto;
  padding: 0 var(--pad);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-right: auto;
  text-decoration: none;
  color: inherit;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 9px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--serif);
  font-size: 20px;
  line-height: 1;
  transition: background 0.25s var(--ease), transform 0.25s var(--ease);
}
.brand:hover .brand-mark {
  background: var(--accent);
  transform: rotate(-4deg);
}

.brand-text {
  display: flex;
  flex-direction: column;
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.1;
  letter-spacing: 0.04em;
}
.brand-text small {
  margin-top: 3px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 1.8vw, 26px);
}

.site-nav a {
  position: relative;
  padding: 4px 0;
  font-size: 13.5px;
  color: var(--ink-soft);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s var(--ease);
}
.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.3s var(--ease);
}
.site-nav a:hover { color: var(--ink); }
.site-nav a:hover::after { width: 100%; }
.site-nav a span {
  margin-right: 5px;
  font-family: var(--mono);
  font-size: 9px;
  color: var(--muted);
}

.header-cta {
  display: inline-flex;
  align-items: center;
  padding: 9px 20px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 13px;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.header-cta:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
  transform: translateY(-1px);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  padding: 0 10px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: transparent;
  cursor: pointer;
}
.menu-toggle span {
  display: block;
  height: 1.5px;
  background: var(--ink);
  transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
}
.menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.75px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.75px) rotate(-45deg); }

.mobile-nav { display: none; }

/* ——— Hero ——— */

.hero {
  display: flex;
  flex-direction: column;
  min-height: 100svh;
  padding: calc(var(--header-h) + clamp(56px, 9vw, 112px)) var(--pad) 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.72fr);
  gap: clamp(40px, 6vw, 96px);
  align-content: center;
  align-items: end;
  flex: 1;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.dot {
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-wash);
}

.hero h1 {
  margin: 20px 0 28px;
  font-family: var(--serif);
  font-size: clamp(2.35rem, 6vw, 5.2rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

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

.hero-lede {
  max-width: 33em;
  margin: 0;
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.95;
  color: var(--ink-soft);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(28px, 4vw, 40px);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 999px;
  font-size: 14px;
  text-decoration: none;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.btn svg { width: 16px; height: 16px; }
.btn-primary {
  background: var(--ink);
  border: 1px solid var(--ink);
  color: var(--paper);
}
.btn-primary:hover {
  background: var(--accent);
  border-color: var(--accent);
  transform: translateY(-2px);
}
.btn-ghost {
  border: 1px solid var(--line-strong);
  color: var(--ink);
}
.btn-ghost:hover {
  background: var(--paper-2);
  border-color: var(--ink);
  transform: translateY(-2px);
}

.hero-aside {
  padding-top: 6px;
  border-top: 1px solid var(--line-strong);
}

.aside-row {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 16px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13.5px;
  color: var(--ink-soft);
}
.aside-label {
  padding-top: 3px;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.status {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--ink);
}

.aside-note {
  margin: 18px 0 0;
  font-size: 12.5px;
  line-height: 1.85;
  color: var(--muted);
}

.hero-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  margin-top: clamp(48px, 7vw, 88px);
  padding: 18px 0 24px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.hero-stack { letter-spacing: 0.08em; }
.scroll-hint {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  letter-spacing: 0.18em;
}
.scroll-hint svg {
  width: 14px;
  height: 14px;
  animation: nudge 2.4s var(--ease) infinite;
}

@keyframes nudge {
  0%, 60%, 100% { transform: translateY(0); opacity: 0.55; }
  30% { transform: translateY(3px); opacity: 1; }
}

@keyframes rise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: none; }
}

.hero-main > .eyebrow,
.hero-main > h1,
.hero-main > .hero-lede,
.hero-main > .hero-actions,
.hero-aside {
  animation: rise 0.9s var(--ease) both;
}
.hero-main > .eyebrow { animation-delay: 0.05s; }
.hero-main > h1 { animation-delay: 0.13s; }
.hero-main > .hero-lede { animation-delay: 0.22s; }
.hero-main > .hero-actions { animation-delay: 0.31s; }
.hero-aside { animation-delay: 0.4s; }

/* ——— Sections ——— */

.section {
  padding: clamp(72px, 10vw, 132px) var(--pad);
  border-top: 1px solid var(--line);
}

#skills { border-top: 0; }

.section-head {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr) auto;
  gap: clamp(16px, 3vw, 32px);
  align-items: baseline;
  margin-bottom: clamp(32px, 4vw, 48px);
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line-strong);
}

.section-index {
  margin: 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--accent);
}

.section-title h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2rem, 4.2vw, 3.2rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.section-note {
  margin: 8px 0 0;
  font-size: 13.5px;
  color: var(--muted);
}

/* ——— Capabilities ——— */

.cap-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.cap {
  display: flex;
  flex-direction: column;
  min-height: 200px;
  padding: clamp(20px, 2.4vw, 30px);
  background: var(--paper);
  transition: background 0.3s var(--ease);
}
.cap:hover { background: var(--paper-2); }

.cap-index {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  color: var(--accent);
}
.cap h3 {
  margin: 16px 0 10px;
  font-family: var(--serif);
  font-size: clamp(19px, 1.7vw, 22px);
  font-weight: 600;
  letter-spacing: 0.01em;
}
.cap p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--ink-soft);
}

/* ——— Project archive ——— */

.archive-note {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 20px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.doc-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.doc {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(22px, 2.6vw, 34px);
  background: var(--paper);
  transition: background 0.3s var(--ease);
}
.doc:hover { background: var(--paper-2); }
.doc:has(.doc-link:focus-visible) {
  box-shadow: inset 0 0 0 2px var(--accent);
  outline: none;
}

.doc-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-right: 28px;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.doc-index { color: var(--accent); }

.doc h3 {
  margin: 4px 0 0;
  font-family: var(--serif);
  font-size: clamp(20px, 2vw, 25px);
  font-weight: 600;
  line-height: 1.3;
  transition: color 0.25s var(--ease);
}
.doc p {
  margin: 0;
  max-width: 40em;
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--ink-soft);
}

.doc-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.doc-meta span {
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.doc-arrow {
  position: absolute;
  top: clamp(22px, 2.6vw, 34px);
  right: clamp(22px, 2.6vw, 34px);
  font-size: 16px;
  color: var(--muted);
  opacity: 0.45;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease), color 0.3s var(--ease);
}
.doc:hover .doc-arrow {
  opacity: 1;
  color: var(--accent);
  transform: translate(2px, -2px);
}
.doc:hover h3 { color: var(--accent); }

.doc-link {
  position: absolute;
  inset: 0;
  z-index: 2;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.doc-dark {
  grid-column: 1 / -1;
  background: var(--ink);
  color: var(--paper);
}
.doc-dark:hover { background: #211c17; }
.doc-dark .doc-top { padding-right: 96px; color: rgba(244, 239, 230, 0.55); }
.doc-dark .doc-index { color: #d9785c; }
.doc-dark h3 { color: var(--paper); }
.doc-dark:hover h3 { color: #e8a58f; }
.doc-dark p { color: rgba(244, 239, 230, 0.72); }
.doc-dark .doc-meta { border-top-color: rgba(244, 239, 230, 0.18); }
.doc-dark .doc-meta span {
  border-color: rgba(244, 239, 230, 0.22);
  color: rgba(244, 239, 230, 0.6);
}
.doc-dark .doc-arrow { color: rgba(244, 239, 230, 0.5); }
.doc-dark:hover .doc-arrow { color: #e8a58f; }

.doc-classified {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(160px, 240px);
  gap: clamp(24px, 4vw, 56px);
  align-items: start;
  margin: 6px 0;
}

.redact {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 8px;
}
.redact i {
  display: block;
  height: 11px;
  border-radius: 1px;
  background: rgba(244, 239, 230, 0.28);
}
.redact i:nth-child(1) { width: 100%; }
.redact i:nth-child(2) { width: 76%; }
.redact i:nth-child(3) { width: 48%; }

.stamp {
  position: absolute;
  top: 18px;
  right: clamp(22px, 2.6vw, 34px);
  z-index: 1;
  padding: 5px 11px;
  border: 1.5px solid var(--accent);
  border-radius: 2px;
  color: #d9785c;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.24em;
  transform: rotate(-9deg);
  opacity: 0.9;
}

/* ——— Workflow ——— */

.flow-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(22px, 3vw, 40px);
}

.flow-step {
  padding-top: 18px;
  border-top: 2px solid var(--ink);
}
.flow-step > span {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  color: var(--accent);
}
.flow-step h3 {
  margin: 10px 0 8px;
  font-family: var(--serif);
  font-size: clamp(17px, 1.5vw, 20px);
  font-weight: 600;
}
.flow-step p {
  margin: 0;
  font-size: 13px;
  line-height: 1.9;
  color: var(--ink-soft);
}

.terminal {
  margin: clamp(40px, 6vw, 64px) 0 0;
  overflow: hidden;
  border-radius: 6px;
  background: var(--ink);
  color: rgba(244, 239, 230, 0.86);
  box-shadow: 0 40px 70px -60px rgba(23, 19, 15, 0.8);
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 18px;
  border-bottom: 1px solid rgba(244, 239, 230, 0.12);
}
.terminal-bar span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(244, 239, 230, 0.22);
}
.terminal-bar em {
  margin-left: auto;
  font-family: var(--mono);
  font-style: normal;
  font-size: 9.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(244, 239, 230, 0.45);
}

.terminal pre {
  margin: 0;
  padding: 20px 22px 22px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 2;
}
.term-dim { color: rgba(244, 239, 230, 0.4); }
.term-ok { color: #e8a58f; }

/* ——— Experience ——— */

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(36px, 6vw, 88px);
  align-items: start;
}

.about-intro {
  position: sticky;
  top: calc(var(--header-h) + 32px);
  align-self: start;
}
.about-intro h3 {
  margin: 0 0 20px;
  font-family: var(--serif);
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.01em;
}
.about-lede {
  max-width: 22em;
  margin: 0;
  padding-left: 18px;
  border-left: 2px solid var(--accent);
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-soft);
}

.intro-note {
  max-width: 22em;
  margin: 24px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.9;
  color: var(--muted);
}

.timeline h4,
.edu h4 {
  margin: 0 0 4px;
  font-family: var(--mono);
  font-size: 9.5px;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}
.timeline ol,
.edu ul {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.timeline li {
  display: grid;
  grid-template-columns: 138px minmax(0, 1fr);
  gap: 20px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}
.tl-year {
  padding-top: 3px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.tl-what {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.tl-what strong {
  font-size: 14.5px;
  font-weight: 500;
}
.tl-what small {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

.stack {
  margin: 40px 0 0;
  border-top: 1px solid var(--line);
}
.stack > div {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13.5px;
}
.stack dt {
  padding-top: 2px;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.stack dd {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.75;
}

.edu { margin-top: 36px; }
.edu li {
  display: grid;
  grid-template-columns: 138px minmax(0, 1fr);
  gap: 20px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13.5px;
  color: var(--ink-soft);
}

/* ——— Contact ——— */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(40px, 7vw, 110px);
  align-items: start;
}

.contact-lead h3 {
  margin: 0 0 22px;
  font-family: var(--serif);
  font-size: clamp(2rem, 4.4vw, 3.4rem);
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -0.015em;
}
.contact-lead p {
  max-width: 28em;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--muted);
}

.phone-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line-strong);
}

.phone {
  padding: 6px 0;
  font-family: var(--serif);
  font-size: clamp(1.4rem, 2.8vw, 2.3rem);
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--ink);
  overflow-wrap: anywhere;
  border-bottom: 1px solid transparent;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.phone {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.phone svg {
  width: 20px;
  height: 20px;
  color: var(--accent);
  flex: none;
}
.phone:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.tel-hint {
  margin: 10px 0 0;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.copy-btn {
  appearance: none;
  padding: 7px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: transparent;
  color: var(--ink-soft);
  font-size: 12px;
  cursor: pointer;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.copy-btn:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.copy-status {
  min-height: 20px;
  margin: 6px 0 22px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--accent);
}

.contact-facts { margin: 0; }
.contact-facts > div {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 16px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
  font-size: 13.5px;
}
.contact-facts dt {
  padding-top: 3px;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
.contact-facts dd {
  margin: 0;
  color: var(--ink-soft);
}

/* ——— Footer ——— */

.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 32px;
  padding: 30px var(--pad) 42px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  color: var(--muted);
}
.site-footer p { margin: 0; }
.footer-note { opacity: 0.75; }
.site-footer a {
  margin-left: auto;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--line-strong);
  color: var(--ink-soft);
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.site-footer a:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ——— Project dialog ——— */

.project-dialog {
  width: min(760px, calc(100% - 40px));
  max-width: 760px;
  max-height: calc(100dvh - 48px);
  margin: auto;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--ink);
}

.project-dialog::backdrop {
  background: rgba(23, 19, 15, 0.52);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}

.dialog-shell {
  position: relative;
  max-height: calc(100dvh - 48px);
  overflow: auto;
  overscroll-behavior: contain;
  border-radius: 6px;
  background: var(--paper);
}

.dialog-close {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 5;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: rgba(244, 239, 230, 0.92);
  color: var(--ink);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), transform 0.2s var(--ease);
}
.dialog-close:hover {
  background: var(--ink);
  color: var(--paper);
  transform: rotate(90deg);
}

.project-detail { padding: clamp(28px, 5vw, 52px); }

.detail-kicker {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}
.project-detail h2 {
  margin: 0 0 16px;
  font-family: var(--serif);
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  font-weight: 600;
  line-height: 1.25;
}
.detail-lede {
  max-width: 36em;
  margin: 0 0 28px;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--ink-soft);
}

.detail-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 0 0 30px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.detail-facts dt {
  margin-bottom: 4px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.detail-facts dd {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-soft);
}

.detail-text h3 {
  margin: 26px 0 8px;
  font-family: var(--mono);
  font-size: 9.5px;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}
.detail-text p {
  margin: 0;
  font-size: 14.5px;
  line-height: 2;
  color: var(--ink-soft);
}

.detail-note {
  margin: 30px 0 0;
  padding: 12px 16px;
  border: 1px dashed var(--line-strong);
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ——— Reveal ——— */

.js [data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ——— Responsive ——— */

@media (max-width: 1080px) {
  .site-nav { gap: 14px; }
  .site-nav a { font-size: 13px; }
  .site-nav a span { display: none; }
}

@media (max-width: 860px) {
  .site-nav,
  .header-cta { display: none; }

  .menu-toggle { display: inline-flex; }

  .header-inner { gap: 12px; }

  .mobile-nav {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    display: flex;
    flex-direction: column;
    padding: 6px var(--pad) 24px;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 28px 44px -34px rgba(23, 19, 15, 0.45);
  }
  .mobile-nav[hidden] { display: none; }
  .mobile-nav a {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
    font-family: var(--serif);
    font-size: 23px;
    text-decoration: none;
    color: var(--ink);
  }
  .mobile-nav a span {
    font-family: var(--mono);
    font-size: 10px;
    color: var(--muted);
  }
  .mobile-nav .mobile-tel {
    padding: 10px 0 14px;
    border-bottom: 0;
    font-family: var(--sans);
    font-size: 14px;
    color: var(--ink-soft);
  }
}

@media (max-width: 980px) {
  .hero { min-height: 0; }
  .hero-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 48px;
    padding-top: 8px;
  }
  .hero-aside { max-width: 560px; }
  .about-grid,
  .contact-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 36px;
  }
  .about-intro { position: static; }
  .cap-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .flow-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .section-head { grid-template-columns: 40px minmax(0, 1fr); }
}

@media (max-width: 720px) {
  .doc-grid { grid-template-columns: minmax(0, 1fr); }
  .doc-top { padding-right: 0; }
  .doc-arrow { display: none; }
  .doc-classified { grid-template-columns: minmax(0, 1fr); gap: 18px; }
  .redact { max-width: 320px; }
  .detail-facts { grid-template-columns: minmax(0, 1fr); gap: 12px; }
  .timeline li,
  .edu li { grid-template-columns: minmax(0, 1fr); gap: 6px; }
  .contact-facts > div { grid-template-columns: 80px minmax(0, 1fr); }
  .project-dialog {
    width: 100%;
    max-width: 100%;
    max-height: 100dvh;
  }
  .dialog-shell {
    max-height: 100dvh;
    border-radius: 0;
  }
  .terminal pre { font-size: 11.5px; }
}

@media (max-width: 560px) {
  .section-head {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 10px 14px;
    align-items: start;
  }
  .section-index {
    grid-column: 1;
    grid-row: 1;
    padding-top: 10px;
  }
  .section-title {
    grid-column: 2;
    grid-row: 1;
  }
  .cap-grid { grid-template-columns: minmax(0, 1fr); }
  .cap { min-height: 0; }
  .flow-grid { grid-template-columns: minmax(0, 1fr); }
  .brand-text small { display: none; }
  .hero-actions .btn { flex: 1; justify-content: center; }
  .site-footer a { margin-left: 0; }
  .project-detail { padding: 24px 20px 32px; }
  .aside-row { grid-template-columns: 56px minmax(0, 1fr); gap: 12px; }
  .stack > div { grid-template-columns: 64px minmax(0, 1fr); }
  .hero-stack { font-size: 9px; line-height: 1.8; }
}

/* ——— Motion preferences ——— */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}