/* ============================================================
   Zuping Xiong — Personal Academic Website
   Dark tech theme · neon indigo/cyan accents
   ============================================================ */

:root {
  --bg: #060913;
  --bg-2: #0a0f22;
  --card: rgba(139, 155, 255, 0.045);
  --card-hover: rgba(139, 155, 255, 0.09);
  --border: rgba(139, 155, 255, 0.16);
  --border-strong: rgba(139, 155, 255, 0.32);
  --text: #e9edfb;
  --muted: #98a2c4;
  --faint: #6b7596;
  --accent-1: #6d7cff;      /* indigo  */
  --accent-2: #22d3ee;      /* cyan    */
  --accent-3: #a78bfa;      /* violet  */
  --grad: linear-gradient(120deg, #6d7cff 0%, #22d3ee 55%, #a78bfa 100%);
  --grad-soft: linear-gradient(120deg, rgba(109,124,255,.16), rgba(34,211,238,.16));
  --radius: 16px;
  --radius-sm: 10px;
  --nav-h: 64px;
  --shadow: 0 20px 60px -20px rgba(4, 8, 30, 0.9);
  --font: Arial, "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
  --mono: Arial, sans-serif;
}

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

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 12px); }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: rgba(109, 124, 255, 0.4); }

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ---------- ambient background ---------- */
.bg-orbs {
  position: fixed; inset: 0; z-index: -2;
  overflow: hidden; pointer-events: none;
}
.orb {
  position: absolute; border-radius: 50%;
  filter: blur(110px); opacity: 0.5;
  animation: drift 26s ease-in-out infinite alternate;
}
.orb-1 { width: 560px; height: 560px; top: -180px; left: -140px; background: radial-gradient(circle, rgba(109,124,255,.55), transparent 70%); }
.orb-2 { width: 480px; height: 480px; top: 12%; right: -160px; background: radial-gradient(circle, rgba(34,211,238,.4), transparent 70%); animation-delay: -8s; }
.orb-3 { width: 520px; height: 520px; bottom: -200px; left: 30%; background: radial-gradient(circle, rgba(167,139,250,.35), transparent 70%); animation-delay: -16s; }
@keyframes drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to   { transform: translate3d(60px, 40px, 0) scale(1.12); }
}
#starfield { position: fixed; inset: 0; z-index: -1; pointer-events: none; }

/* ---------- layout helpers ---------- */
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 28px; }
.section { padding: 96px 0 40px; position: relative; }
.section-tight { padding-top: 64px; }

.section-head { margin-bottom: 44px; }
.kicker {
  font-family: var(--mono); font-size: 13px; letter-spacing: 3px;
  text-transform: uppercase; color: var(--accent-2);
  display: inline-flex; align-items: center; gap: 12px;
}
.kicker::before { content: ""; width: 34px; height: 1px; background: var(--grad); }
.section-title {
  font-size: clamp(26px, 3.6vw, 38px); font-weight: 700; letter-spacing: -0.5px;
  margin-top: 10px;
}
.section-title .zh {
  font-size: 0.52em; font-weight: 500; color: var(--faint);
  margin-left: 14px; letter-spacing: 2px; vertical-align: 2px;
}
.section-sub { color: var(--muted); margin-top: 10px; max-width: 720px; font-size: 15.5px; }
.section-head .kicker, .section-title, .section-sub { text-shadow: 0 2px 16px rgba(6,9,19,.7); }

/* ---------- nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center;
  background: rgba(6, 9, 19, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background .3s;
}
.nav.scrolled { border-bottom-color: var(--border); background: rgba(6, 9, 19, 0.88); }
.nav-inner {
  width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 28px;
  display: flex; align-items: center; justify-content: space-between;
}
.logo {
  font-weight: 700; font-size: 17px; letter-spacing: 0.5px;
  display: flex; align-items: center; gap: 10px;
}
.logo .dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--grad); box-shadow: 0 0 14px rgba(109,124,255,.9);
}
.logo .zh { color: var(--muted); font-weight: 500; font-size: 14px; }
.nav-links { display: flex; gap: 4px; list-style: none; }
.nav-links a {
  padding: 8px 14px; border-radius: 999px; font-size: 14px; color: var(--muted);
  transition: color .2s, background .2s; white-space: nowrap;
}
.nav-links a:hover { color: var(--text); }
.nav-links a.active {
  color: var(--text);
  background: linear-gradient(120deg, rgba(109,124,255,.16), rgba(34,211,238,.14));
  box-shadow: inset 0 0 0 1px var(--border);
}
.nav-burger {
  display: none; background: none; border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 10px; cursor: pointer;
}
.nav-burger span {
  display: block; width: 20px; height: 2px; margin: 4px 0;
  background: var(--text); border-radius: 2px; transition: transform .25s, opacity .25s;
}
@media (max-width: 900px) {
  .nav-links {
    position: fixed; top: var(--nav-h); right: 0; left: 0;
    flex-direction: column; gap: 6px; padding: 18px 28px 24px;
    background: rgba(6, 9, 19, 0.97);
    border-bottom: 1px solid var(--border);
    transform: translateY(-8px); opacity: 0; pointer-events: none;
    transition: transform .25s, opacity .25s;
  }
  .nav-links.open { transform: none; opacity: 1; pointer-events: auto; }
  .nav-links a { font-size: 16px; padding: 12px 8px; }
  .nav-burger { display: block; }
  .nav-burger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .nav-burger.open span:nth-child(2) { opacity: 0; }
  .nav-burger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
}

/* ---------- hero ---------- */
.hero {
  position: relative; overflow: hidden;
  min-height: 100vh; display: flex; align-items: center;
  padding: calc(var(--nav-h) + 40px) 0 60px;
}
.hero-mol {
  position: absolute; inset: 0; z-index: 0;
  pointer-events: none; opacity: .55;
}
.hero-mol svg { width: 100%; height: 100%; display: block; }
.hero-inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.25fr 0.85fr;
  gap: 56px; align-items: center;
}
.hero-text {
  background: linear-gradient(120deg, rgba(109,124,255,.09), rgba(34,211,238,.06) 55%, rgba(167,139,250,.08));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 32px;
  backdrop-filter: blur(8px);
}
.hero .scroll-hint { z-index: 1; }
.hero-kicker {
  font-family: var(--mono); font-size: 14px; letter-spacing: 4px;
  color: var(--accent-2); text-transform: uppercase;
}
.hero h1 {
  font-size: clamp(40px, 6.4vw, 66px); font-weight: 800;
  letter-spacing: -1.5px; line-height: 1.08; margin: 14px 0 6px;
}
.hero h1 .grad {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .zh-name {
  font-size: clamp(20px, 2.6vw, 27px); color: var(--muted);
  font-weight: 500; letter-spacing: 6px; margin-bottom: 18px;
}
.hero-role {
  font-size: 17.5px; color: var(--text);
  display: flex; flex-wrap: wrap; gap: 8px 22px; margin-bottom: 10px;
}
.hero-role b { font-weight: 650; }
.hero-org { color: var(--muted); font-size: 15px; margin-bottom: 24px; }
.hero-quote {
  font-family: var(--mono); font-size: 13.5px; color: var(--faint);
  border-left: 2px solid var(--border-strong); padding-left: 16px;
  margin-bottom: 34px; letter-spacing: 0.3px;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; }
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 12px 26px; border-radius: 999px;
  font-size: 14.5px; font-weight: 600; letter-spacing: 0.3px;
  border: 1px solid var(--border); color: var(--text);
  background: var(--card); backdrop-filter: blur(6px);
  transition: transform .2s, box-shadow .2s, border-color .2s, background .2s;
}
.btn:hover { transform: translateY(-2px); border-color: var(--border-strong); background: var(--card-hover); }
.btn-primary {
  background: var(--grad); border: none; color: #fff;
  box-shadow: 0 8px 30px -8px rgba(80, 120, 255, 0.65);
}
.btn-primary:hover { box-shadow: 0 12px 40px -8px rgba(80, 140, 255, 0.8); background: var(--grad); }
.btn svg { width: 16px; height: 16px; }

/* portrait */
.hero-visual { position: relative; display: flex; justify-content: center; }
.portrait-ring {
  position: relative; width: min(340px, 78vw); aspect-ratio: 1; border-radius: 50%;
  padding: 6px;
  background: conic-gradient(from 0deg, #6d7cff, #22d3ee, #a78bfa, #6d7cff);
  box-shadow: 0 0 90px -18px rgba(109, 124, 255, 0.55);
}
.portrait-ring::before {
  content: ""; position: absolute; inset: 6px; border-radius: 50%;
  background: var(--bg-2);
}
.portrait-ring img {
  position: relative; z-index: 1; width: 100%; height: 100%;
  object-fit: cover; object-position: center top; border-radius: 50%;
}
.hero-badges { position: absolute; z-index: 2; }
.badge-float {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.5px;
  background: rgba(10, 15, 34, 0.92); border: 1px solid var(--border);
  border-radius: 10px; padding: 8px 14px; color: var(--text);
  box-shadow: var(--shadow); backdrop-filter: blur(8px);
  animation: floaty 5.5s ease-in-out infinite;
  white-space: nowrap;
}
.badge-float b { color: var(--accent-2); }
.badge-float.f1 { top: 0%; left: -8%; animation-delay: -1s; }
.badge-float.f2 { top: 4%; right: -16%; animation-delay: -1.6s; }
.badge-float.f3 { top: 28%; left: -15%; animation-delay: -2.2s; }
.badge-float.f4 { top: 34%; right: -20%; animation-delay: -2.8s; }
.badge-float.f5 { bottom: 10%; left: -9%; animation-delay: -3.4s; }
.badge-float.f6 { bottom: 0%; right: -6%; animation-delay: -4s; }
@keyframes floaty { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 44px; }
  .hero-visual { order: -1; }
  .hero-text { padding: 22px 20px; }
  .badge-float.f1 { left: -1%; } .badge-float.f2 { right: -2%; }
  .badge-float.f3 { left: -4%; } .badge-float.f4 { right: -8%; }
  .badge-float.f5 { left: -2%; } .badge-float.f6 { right: -4%; }
}
.scroll-hint {
  position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%);
  color: var(--faint); font-family: var(--mono); font-size: 12px; letter-spacing: 2px;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.scroll-hint::after {
  content: ""; width: 1px; height: 34px;
  background: linear-gradient(var(--accent-2), transparent);
  animation: pulse-line 1.8s ease-in-out infinite;
}
@keyframes pulse-line { 0%,100% { opacity: .2; } 50% { opacity: 1; } }

/* ---------- stats ---------- */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
  padding: 30px 0 10px;
}
.stat {
  text-align: center; padding: 26px 12px;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  backdrop-filter: blur(6px);
}
.stat .num {
  font-size: clamp(30px, 4vw, 40px); font-weight: 800; letter-spacing: -1px;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
  font-variant-numeric: tabular-nums;
}
.stat .lab { color: var(--muted); font-size: 13.5px; margin-top: 6px; }
@media (max-width: 760px) { .stats { grid-template-columns: repeat(2, 1fr); } }

/* ---------- cards & grids ---------- */
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px;
  backdrop-filter: blur(6px);
  transition: transform .25s, border-color .25s, background .25s, box-shadow .25s;
}
.card:hover { transform: translateY(-4px); border-color: var(--border-strong); background: var(--card-hover); box-shadow: 0 18px 50px -22px rgba(80, 110, 255, 0.35); }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 900px) { .grid-3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 620px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }

/* ---------- about ---------- */
.about-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: 28px; }
@media (max-width: 900px) { .about-grid { grid-template-columns: 1fr; } }
.about-text {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px;
  backdrop-filter: blur(6px);
}
.about-text p { color: var(--muted); margin-bottom: 16px; font-size: 15.5px; }
.about-text p b { color: var(--text); font-weight: 650; }
.about-text p.hl { color: var(--text); }
.info-card { align-self: start; position: sticky; top: calc(var(--nav-h) + 20px); }
.info-row { display: flex; gap: 14px; padding: 13px 0; border-bottom: 1px dashed var(--border); font-size: 14px; }
.info-row:last-child { border-bottom: none; }
.info-row .k { color: var(--faint); min-width: 92px; font-family: var(--mono); font-size: 12.5px; letter-spacing: 1px; text-transform: uppercase; padding-top: 2px; }
.info-row .v { color: var(--text); word-break: break-all; }
.info-row .v a { color: var(--accent-2); border-bottom: 1px dotted var(--border-strong); }
.info-row .v a:hover { color: #7ce7fa; }

/* ---------- research ---------- */
.res-card { position: relative; overflow: hidden; }
.res-card .icon {
  width: 46px; height: 46px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: var(--grad-soft); border: 1px solid var(--border);
  margin-bottom: 18px;
}
.res-card .icon svg { width: 22px; height: 22px; stroke: var(--accent-2); fill: none; stroke-width: 1.7; }
.res-card h3 { font-size: 17px; margin-bottom: 8px; letter-spacing: 0.2px; }
.res-card p { color: var(--muted); font-size: 14px; }
.res-card::after {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--grad); opacity: 0; transition: opacity .25s;
}
.res-card:hover::after { opacity: 1; }

/* ---------- honors ---------- */
.honor {
  display: flex; gap: 18px; align-items: flex-start;
  padding: 20px 22px;
}
.honor .year {
  font-family: var(--mono); font-size: 13px; color: var(--accent-2);
  min-width: 88px; padding: 4px 12px; border: 1px solid var(--border);
  border-radius: 999px; text-align: center; background: rgba(34,211,238,.06);
  flex-shrink: 0;
}
.honor .body h4 { font-size: 15.5px; font-weight: 650; line-height: 1.5; }
.honor .body .sub { color: var(--muted); font-size: 13.5px; margin-top: 3px; }
.honor .body .zh { color: var(--faint); font-size: 13px; margin-top: 2px; }
.honors-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 860px) { .honors-grid { grid-template-columns: 1fr; } }

/* ---------- publications list ---------- */
.pub-tabs { display: flex; gap: 10px; margin-bottom: 26px; flex-wrap: wrap; }
.pub-tab {
  padding: 10px 24px; border-radius: 999px; cursor: pointer;
  font-size: 14.5px; font-weight: 600; color: var(--muted);
  border: 1px solid var(--border); background: var(--card);
  transition: all .2s; font-family: var(--font);
}
.pub-tab:hover { color: var(--text); border-color: var(--border-strong); }
.pub-tab.active { color: #fff; background: var(--grad); border-color: transparent; box-shadow: 0 6px 24px -8px rgba(80,120,255,.6); }
.pub-tab .cnt { font-family: var(--mono); font-size: 12px; opacity: .8; margin-left: 8px; }
.pub-group { display: none; }
.pub-group.active { display: block; animation: fadein .35s ease; }
@keyframes fadein { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.pub-year {
  display: flex; align-items: center; gap: 16px;
  font-family: var(--mono); font-size: 13px; letter-spacing: 2.5px;
  text-transform: uppercase; color: var(--faint);
  margin: 34px 0 16px;
  text-shadow: 0 2px 12px rgba(6,9,19,.7);
}
.pub-year b { color: var(--accent-2); font-weight: 600; }
.pub-year::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.paper {
  display: grid; grid-template-columns: 128px 1fr; gap: 20px;
  padding: 16px; align-items: start;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--card);
  transition: background .2s, border-color .2s;
}
.paper:hover { background: var(--card-hover); border-color: var(--border-strong); }
.paper-fig {
  position: relative; display: block; aspect-ratio: 1;
  border-radius: var(--radius-sm); overflow: hidden;
  background: var(--bg-2); border: 1px solid var(--border);
}
.paper-fig img {
  position: absolute; inset: 0; z-index: 1;
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .45s;
}
.paper-fig img.cover { object-fit: contain; }
.paper:hover .paper-fig img { transform: scale(1.07); }
.paper-fig img.gone { display: none; }
.paper-fig .paper-ph {
  position: absolute; inset: 0; z-index: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 3px; padding: 8px; text-align: center;
  font-family: var(--mono); font-size: 12.5px; letter-spacing: 1px;
  line-height: 1.45; color: var(--faint);
  background:
    radial-gradient(circle at 30% 25%, rgba(109,124,255,.17), transparent 70%),
    radial-gradient(circle at 75% 80%, rgba(34,211,238,.11), transparent 70%);
}
.paper-fig .paper-ph b { font-weight: 600; color: var(--muted); }
.paper-fig .paper-ph span { font-size: 11px; opacity: .8; }
.paper-body { min-width: 0; padding-top: 1px; }
.paper-title { font-size: 15.5px; font-weight: 650; line-height: 1.5; color: var(--text); }
.paper-title a { color: inherit; }
.paper-title a:hover { color: var(--accent-2); }
.paper-authors { font-size: 13px; color: var(--muted); margin-top: 7px; line-height: 1.7; }
.paper-authors .me { color: var(--accent-2); font-weight: 700; }
.paper-meta {
  display: flex; flex-wrap: wrap; align-items: center; gap: 7px 16px;
  margin-top: 10px; font-size: 13px; color: var(--faint);
}
.paper-meta b { color: var(--text); font-weight: 650; }
.paper-meta a.doi { color: var(--accent-3); font-family: var(--mono); font-size: 12px; border-bottom: 1px dotted var(--border-strong); }
.paper-meta a.doi:hover { color: #c4b5fd; }
.tag {
  display: inline-block;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.5px;
  padding: 3px 10px; border-radius: 999px;
  border: 1px solid var(--border); color: var(--faint); white-space: nowrap;
}
.tag.first { color: #fbbf24; border-color: rgba(251,191,36,.35); background: rgba(251,191,36,.07); }
.tag.corr { color: #34d399; border-color: rgba(52,211,153,.35); background: rgba(52,211,153,.07); }
.tag.star { color: #c4b5fd; border-color: rgba(167,139,250,.42); background: rgba(167,139,250,.09); }
/* Featured (代表作) cards: light glass like research cards + gradient frame */
.paper:has(.tag.star) {
  border: 1px solid transparent;
  background:
    linear-gradient(135deg, rgba(167,139,250,.5), rgba(34,211,238,.32)) border-box,
    var(--card) padding-box;
  backdrop-filter: blur(6px);
  box-shadow: 0 0 18px rgba(167,139,250,.12);
  transition: background .2s, box-shadow .25s;
}
.paper:has(.tag.star):hover {
  background:
    linear-gradient(135deg, rgba(196,181,253,.65), rgba(34,211,238,.45)) border-box,
    var(--card-hover) padding-box;
  box-shadow: 0 0 26px rgba(167,139,250,.18);
}
.paper:has(.tag.star) .paper-fig {
  border-color: rgba(167,139,250,.5);
  box-shadow: 0 0 14px rgba(167,139,250,.2);
}
.paper-links { display: flex; gap: 16px; flex-wrap: wrap; margin-top: 9px; }
.paper-links a { font-size: 12.5px; color: var(--accent-2); display: inline-flex; align-items: center; gap: 5px; }
.paper-links a:hover { color: #7ce7fa; text-decoration: underline; }
.paper-links a svg { width: 12px; height: 12px; }
.legend { display: flex; gap: 22px; flex-wrap: wrap; color: var(--faint); font-size: 13px; margin-bottom: 20px; }
.legend .tag { margin-right: 8px; }
@media (max-width: 640px) {
  .paper { grid-template-columns: 92px 1fr; gap: 14px; padding: 12px; }
  .paper-fig .paper-ph { font-size: 10.5px; letter-spacing: 0.5px; }
  .paper-title { font-size: 14.5px; }
}

/* ---------- academic ---------- */
.acad-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 860px) { .acad-row { grid-template-columns: 1fr; } }
.acad-item { display: flex; gap: 16px; padding: 20px 22px; }
.acad-item .ico {
  flex-shrink: 0; width: 42px; height: 42px; border-radius: 11px;
  background: var(--grad-soft); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
}
.acad-item .ico svg { width: 20px; height: 20px; stroke: var(--accent-2); fill: none; stroke-width: 1.7; }
.acad-item h4 { font-size: 15.5px; font-weight: 650; }
.acad-item p { color: var(--muted); font-size: 13.5px; margin-top: 4px; }
.acad-item a.lk { color: var(--accent-2); font-size: 13px; display: inline-block; margin-top: 6px; }
.acad-item a.lk:hover { text-decoration: underline; }

/* ---------- gallery ---------- */
.gallery { column-count: 3; column-gap: 16px; }
@media (max-width: 900px) { .gallery { column-count: 2; } }
@media (max-width: 560px) { .gallery { column-count: 1; } }
.g-item {
  break-inside: avoid; margin-bottom: 16px;
  border-radius: var(--radius-sm); overflow: hidden; position: relative;
  border: 1px solid var(--border); cursor: zoom-in; background: var(--bg-2);
}
.g-item img { width: 100%; transition: transform .45s, filter .45s; }
.g-item:hover img { transform: scale(1.06); filter: brightness(1.08); }
.g-item .cap {
  position: absolute; inset: auto 0 0 0; padding: 26px 14px 10px;
  background: linear-gradient(transparent, rgba(4,7,20,.92));
  font-size: 12.5px; color: var(--muted);
  opacity: 0; transition: opacity .3s; font-family: var(--mono); letter-spacing: 0.5px;
}
.g-item:hover .cap { opacity: 1; }
.g-tabs { display: flex; gap: 10px; margin-bottom: 24px; flex-wrap: wrap; }
.lightbox {
  position: fixed; inset: 0; z-index: 200; display: none;
  background: rgba(3, 5, 14, 0.94); backdrop-filter: blur(10px);
  align-items: center; justify-content: center; padding: 30px; cursor: zoom-out;
}
.lightbox.open { display: flex; }
.lightbox img { max-width: 92vw; max-height: 88vh; border-radius: 10px; box-shadow: var(--shadow); }
.lightbox .lb-cap { position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%); color: var(--muted); font-family: var(--mono); font-size: 13px; }
.lightbox .lb-close { position: absolute; top: 22px; right: 26px; color: var(--muted); font-size: 30px; line-height: 1; cursor: pointer; }

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.25fr; gap: 24px; }
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; } }
.c-item { display: flex; align-items: center; gap: 16px; padding: 18px 22px; }
.c-item .ico {
  flex-shrink: 0; width: 44px; height: 44px; border-radius: 12px;
  background: var(--grad-soft); border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
}
.c-item .ico svg { width: 21px; height: 21px; stroke: var(--accent-2); fill: none; stroke-width: 1.7; }
.c-item .k { font-family: var(--mono); font-size: 11.5px; letter-spacing: 1.5px; color: var(--faint); text-transform: uppercase; }
.c-item .v { font-size: 15.5px; color: var(--text); word-break: break-all; }
.c-item .v a { color: var(--accent-2); }
.c-item .v a:hover { text-decoration: underline; }
.form label { display: block; font-size: 13px; color: var(--muted); margin: 16px 0 7px; font-family: var(--mono); letter-spacing: 1px; }
.form input, .form textarea {
  width: 100%; padding: 13px 16px; border-radius: var(--radius-sm);
  background: rgba(10, 15, 34, 0.7); border: 1px solid var(--border);
  color: var(--text); font-family: var(--font); font-size: 14.5px;
  transition: border-color .2s, box-shadow .2s; resize: vertical;
}
.form input:focus, .form textarea:focus {
  outline: none; border-color: var(--accent-2);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.14);
}
.form .btn { margin-top: 20px; cursor: pointer; font-family: var(--font); }
.form-note { color: var(--faint); font-size: 12.5px; margin-top: 12px; }

/* ---------- footer ---------- */
footer {
  margin-top: 80px; padding: 34px 0 40px;
  border-top: 1px solid var(--border);
  color: var(--faint); font-size: 13.5px; text-align: center;
}
footer .motto { font-family: var(--mono); font-size: 12.5px; color: var(--muted); margin-top: 8px; letter-spacing: 0.5px; }

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; } .reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; } .reveal.d4 { transition-delay: .32s; }

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