:root {
  --color-bg: #f3f2f2;
  --color-surface: #eae9e9;
  --color-text: #201f1d;
  --color-accent: #b68235;
  --color-accent-strong: #7d5411;
  --color-accent-soft: #fff3e4;
  --color-accent-ink: #5a3b0a;
  --color-neutral-soft: #f8f4f4;
  --color-neutral-ink: #444141;
  --color-divider: color-mix(in srgb, var(--color-text) 16%, transparent);
  --color-muted: color-mix(in srgb, var(--color-text) 68%, transparent);

  --font-heading: "Cormorant Garamond", Georgia, serif;
  --font-body: "Lora", Georgia, serif;

  --radius-md: 4px;
  --radius-lg: 7px;
  --shadow-md: 0 3px 10px color-mix(in srgb, #2d2b2b 16%, transparent);
  --shadow-lg: 0 12px 32px color-mix(in srgb, #2d2b2b 22%, transparent);
  --gutter: clamp(16px, 5vw, 72px);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-bg: #1a1917;
    --color-surface: #24221f;
    --color-text: #ece8e1;
    --color-accent: #d6a45c;
    --color-accent-strong: #e7bd7e;
    --color-accent-soft: #3a2a14;
    --color-accent-ink: #f5d7a6;
    --color-neutral-soft: #2d2b28;
    --color-neutral-ink: #d7d3d3;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --color-bg: #1a1917;
  --color-surface: #24221f;
  --color-text: #ece8e1;
  --color-accent: #d6a45c;
  --color-accent-strong: #e7bd7e;
  --color-accent-soft: #3a2a14;
  --color-accent-ink: #f5d7a6;
  --color-neutral-soft: #2d2b28;
  --color-neutral-ink: #d7d3d3;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.55;
  text-wrap: pretty;
  transition: background .3s, color .3s;
}
h1, h2, h3 { font-family: var(--font-heading); font-weight: 400; line-height: 1.1; letter-spacing: -0.015em; margin: 0; }
p { margin: 0; }
a { color: var(--color-accent-strong); text-decoration-color: var(--color-accent); text-underline-offset: 3px; }
a:hover { color: var(--color-accent); }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
::selection { background: color-mix(in srgb, var(--color-accent) 30%, transparent); }

.hr { height: 1px; border: 0; margin: 0; background: var(--color-divider); }
.eyebrow {
  display: block; font-size: 13px; letter-spacing: .08em; text-transform: uppercase;
  color: var(--color-accent-strong); margin-bottom: 12px;
}

/* ---------- Кнопки, теги ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  cursor: pointer; text-decoration: none;
  font-family: var(--font-heading); font-weight: 600; font-size: 15px; line-height: 1.2;
  color: var(--color-text); background: transparent;
  border: 1px solid transparent; border-radius: var(--radius-md);
  padding: 9px 16px; transition: background .2s, border-color .2s;
}
.btn-primary { color: var(--color-accent-strong); border-color: var(--color-accent); }
.btn-primary:hover { background: color-mix(in srgb, var(--color-accent) 12%, transparent); }
.btn-ghost { color: var(--color-accent-strong); }
.btn-ghost:hover { background: color-mix(in srgb, var(--color-accent) 10%, transparent); }

.tag {
  display: inline-flex; align-items: center; font-size: 11px; letter-spacing: .02em;
  padding: 3px 10px; border-radius: 3px; white-space: nowrap;
  transition: background .2s ease, border-color .2s ease, color .2s ease;
}
.tag-accent { background: var(--color-accent-soft); color: var(--color-accent-ink); }
.tag-neutral { background: var(--color-neutral-soft); color: var(--color-neutral-ink); }
.tag-outline { border: 1px solid var(--color-accent); color: var(--color-accent-strong); }

/* ---------- Навигация ---------- */
.nav {
  position: sticky; top: 0; z-index: 10;
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 24px;
  padding: 14px var(--gutter);
  border-bottom: 1px solid var(--color-divider);
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(8px);
}
.nav-brand {
  font-family: var(--font-heading); font-weight: 600; font-size: 20px;
  color: var(--color-text); text-decoration: none; margin-right: auto;
}
.nav-links { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 20px; }
.nav-links a { color: inherit; text-decoration: none; font-size: 14px; white-space: nowrap; }
.nav-links a:hover, .nav-links a.active { color: var(--color-accent); }
.theme-toggle {
  background: none; border: 1px solid var(--color-divider); border-radius: 50%;
  width: 30px; height: 30px; cursor: pointer; color: var(--color-text); font-size: 15px;
  transition: border-color .2s ease, color .2s ease, transform .2s ease;
}
.theme-toggle:hover { border-color: var(--color-accent); color: var(--color-accent); transform: rotate(18deg); }

main { max-width: 1200px; margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- Hero ---------- */
.hero { padding: clamp(64px, 10vw, 120px) 0 clamp(48px, 7vw, 84px); }
.hero-title { font-size: clamp(64px, 12vw, 148px); line-height: .95; margin-left: -.04em; }
.hero-lead { max-width: 58ch; margin-top: 28px; display: grid; gap: 14px; }
.hero-lead p { margin: 0; font-size: clamp(17px, 2vw, 20px); line-height: 1.65; text-wrap: balance; }
.hero-lead p + p { font-size: clamp(15px, 1.7vw, 17px); color: var(--color-muted); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

/* ---------- Цифры ---------- */
.stats {
  padding: 48px 0; display: grid; gap: 36px 28px;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}
.stat-value { font-family: var(--font-heading); font-size: clamp(44px, 5vw, 60px); line-height: 1; font-feature-settings: 'tnum' 1; }
.stat-value.accent { color: var(--color-accent); }
.stat-label { font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--color-muted); margin-top: 12px; }

/* ---------- Секции ---------- */
.section { padding: clamp(56px, 8vw, 96px) 0; scroll-margin-top: 60px; }
.section h2 { font-size: clamp(34px, 4vw, 48px); margin-bottom: 36px; }
.section-head { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 16px 20px; margin-bottom: 36px; }
.section-head h2 { margin: 0; }
.filters { display: flex; flex-wrap: wrap; gap: 6px; }
.filters .btn { padding: 6px 12px; font-size: 14px; }

/* ---------- Карточки участников ---------- */
.team-grid {
  display: grid; gap: 24px;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr));
}
.card {
  display: flex; flex-direction: column; gap: 16px; padding: 28px;
  border: 1px solid var(--color-divider); border-radius: var(--radius-md);
  background: transparent; color: var(--color-text); cursor: pointer;
  transition: border-color .3s ease, box-shadow .3s ease, transform .3s cubic-bezier(.22,.61,.36,1), opacity .3s ease;
}
.card:hover { border-color: var(--color-accent); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.card:active { transform: translateY(-1px); transition-duration: .1s; }
.card:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; border-color: var(--color-accent); }
.card.is-hidden { display: none; }
.card-top { display: flex; align-items: center; gap: 16px; }
.avatar {
  flex: none; width: 56px; height: 56px; border-radius: 50%;
  display: grid; place-items: center;
  font-family: var(--font-heading); font-size: 24px; font-weight: 600;
  color: var(--color-accent-strong);
  border: 1px solid var(--color-accent);
  background: var(--color-accent-soft);
}
.card-kicker {
  display: inline-block; padding: 3px 8px; margin-bottom: 5px;
  border: 1px solid var(--color-accent); border-radius: 3px;
  font-size: 10px; letter-spacing: .1em; text-transform: uppercase; color: var(--color-accent-strong);
}
.card-title { font-size: 30px; word-break: break-word; }
.card-title .placeholder { color: var(--color-muted); }
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.card-bio { font-size: 14px; line-height: 1.65; color: var(--color-muted); }
.card-block h4 {
  margin: 0 0 8px; font-family: var(--font-body); font-weight: 400;
  font-size: 11px; letter-spacing: .1em; text-transform: uppercase; color: var(--color-muted);
}
.card-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; font-size: 14px; }
.card-list li { position: relative; padding-left: 16px; line-height: 1.45; }
.card-list li::before { content: ''; position: absolute; left: 0; top: .6em; width: 6px; height: 1px; background: var(--color-accent); }
.card-foot {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 20px;
  margin-top: auto; padding-top: 16px; border-top: 1px solid var(--color-divider); font-size: 15px;
}
.card-foot .more { margin-left: auto; padding: 4px 8px; font-size: 14px; }
.resume-link {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--font-heading); font-weight: 600; font-size: 14px; line-height: 1;
  color: var(--color-accent-ink); text-decoration: none;
  padding: 7px 14px; border: 1px solid var(--color-accent); border-radius: 999px;
  background: var(--color-accent-soft);
  transition: background .2s, transform .2s, box-shadow .2s;
}
.resume-link:hover {
  color: var(--color-accent-ink);
  background: color-mix(in srgb, var(--color-accent) 22%, transparent);
  transform: translateY(-1px); box-shadow: var(--shadow-md);
}
.resume-link .resume-ico { color: var(--color-accent-strong); font-size: 13px; }

/* ---------- Таблица результатов ---------- */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.results { min-width: 420px; border-top: 1px solid var(--color-text); font-feature-settings: 'tnum' 1; }
.results .row {
  display: grid; grid-template-columns: minmax(0, 1fr) 100px 120px;
  gap: 24px; align-items: center; padding: 16px 4px;
  border-bottom: 1px solid var(--color-divider); font-size: 15px;
  transition: background .2s ease;
}
.results .row:not(.head):hover { background: var(--color-accent-soft); }
.results .head { padding: 12px 4px; border-bottom-color: var(--color-text); font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--color-muted); }
.results .name { font-family: var(--font-heading); font-size: 20px; }
.results .num { text-align: right; font-variant-numeric: tabular-nums; }
.results .place { font-family: var(--font-heading); font-size: 22px; color: var(--color-accent); }
.results .place-total { color: var(--color-muted); font-size: 14px; }
.results .empty { padding: 28px 0; color: var(--color-muted); font-style: italic; }

/* ---------- Достижения ---------- */
.ach-intro { max-width: 60ch; margin: -18px 0 28px; color: var(--color-muted); font-size: 16px; }
.ach-grid { display: grid; gap: 24px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.ach-card {
  display: flex; flex-direction: column; overflow: hidden;
  border: 1px solid var(--color-divider); border-radius: var(--radius-md);
  color: var(--color-text); text-decoration: none;
  transition: border-color .3s, box-shadow .3s, transform .3s cubic-bezier(.22,.61,.36,1);
}
.ach-card:hover { color: var(--color-text); border-color: var(--color-accent); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.ach-card:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; }
.ach-preview { height: 205px; overflow: hidden; border-bottom: 1px solid var(--color-divider); background: var(--color-surface); }
.ach-preview img { display: block; width: 100%; height: 100%; object-fit: cover; object-position: center top; }
.ach-content { display: grid; flex: 1; grid-template-rows: minmax(58px, auto) minmax(66px, auto) auto; gap: 12px; padding: 22px 24px 24px; }
.ach-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 48px; padding: 10px 14px; font-size: 12px; }
.ach-top span:last-child { color: var(--color-muted); }
.ach-kind { color: var(--color-accent-strong); font-size: 11px; letter-spacing: .1em; text-transform: uppercase; }
.ach-content h3 { font-size: 26px; line-height: 1.12; overflow-wrap: anywhere; }
.ach-detail { color: var(--color-muted); font-size: 14px; line-height: 1.55; }
.ach-bottom { align-self: end; padding-top: 14px; border-top: 1px solid var(--color-divider); font-size: 13px; }
.ach-open { color: var(--color-accent-strong); font-weight: 600; white-space: nowrap; }
@media (max-width: 900px) { .ach-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) {
  .ach-grid { grid-template-columns: 1fr; }
  .ach-content { grid-template-rows: none; }
}

/* ---------- Райтапы ---------- */
.writeups-intro { max-width: 62ch; margin: -18px 0 28px; color: var(--color-muted); font-size: 16px; }
.writeup-grid { display: grid; gap: 24px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.writeups-repo { margin-top: 20px; font-size: 14px; }
.youtube-card {
  display: flex; align-items: center; gap: 20px;
  width: 100%; margin-top: 28px; padding: 24px 28px;
  border: 1px solid var(--color-divider); border-radius: var(--radius-lg);
  background: #24221f; color: #f3f2f2; text-decoration: none;
}
.youtube-card:hover { color: #f3f2f2; box-shadow: var(--shadow-lg); }
.youtube-icon {
  flex: none; display: grid; place-items: center; width: 54px; height: 38px;
  border-radius: 11px; background: #e34840; color: #fff; font-size: 17px;
}
.youtube-copy { display: grid; gap: 4px; }
.youtube-copy strong { font-family: var(--font-heading); font-size: 29px; line-height: 1.1; font-weight: 600; }
.youtube-copy span { color: #c8c5c0; font-size: 13px; }
.youtube-copy .youtube-kicker { color: #e7bd7e; font-size: 11px; text-transform: uppercase; letter-spacing: .1em; }
.youtube-arrow { margin-left: auto; color: #e7bd7e; font-size: 28px; }
.writeup { display: block; padding: 0; overflow: hidden; text-decoration: none; }
.writeup-image { height: 190px; overflow: hidden; background: var(--color-surface); border-bottom: 1px solid var(--color-divider); }
.writeup-image img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.writeup:hover .writeup-image img { transform: scale(1.04); }
.writeup-content { display: flex; flex-direction: column; gap: 13px; min-height: 250px; padding: 22px 24px 24px; }
.writeup:hover { color: var(--color-text); }
.writeup-top { display: flex; justify-content: space-between; align-items: center; gap: 12px; font-size: 13px; color: var(--color-muted); }
.writeup h3 { font-size: 27px; line-height: 1.06; }
.writeup p { font-size: 14px; line-height: 1.55; color: var(--color-muted); flex: 1; }
.writeup .read { color: var(--color-accent-strong); font-size: 14px; font-weight: 600; }
@media (max-width: 900px) { .writeup-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .writeup-grid { grid-template-columns: 1fr; } .writeup-image { height: 220px; } }
@media (max-width: 480px) {
  .youtube-card { gap: 12px; padding: 18px; }
  .youtube-icon { width: 42px; height: 32px; font-size: 14px; }
  .youtube-copy strong { font-size: 22px; }
  .youtube-arrow { display: none; }
}

/* ---------- Контакты, футер ---------- */
.contact-lead { font-size: 17px; line-height: 1.6; max-width: 52ch; margin-top: -16px; }
.footer { align-items: center;
  padding: 40px 0 56px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px;
  font-size: 14px; color: var(--color-muted);
}
.footer-links { display: flex; flex-wrap: wrap; gap: 8px 24px; }

/* ---------- Диалог (подробное резюме) ---------- */
.dialog-backdrop {
  position: fixed; inset: 0; z-index: 50; display: grid; place-items: center; padding: 16px;
  background: color-mix(in srgb, #2d2b2b 55%, transparent);
  animation: fade .2s ease;
}
.dialog-backdrop[hidden] { display: none; }
.dialog {
  position: relative; width: min(880px, 100%); max-height: calc(100vh - 32px); overflow-y: auto;
  display: flex; flex-direction: column; gap: 20px;
  padding: clamp(24px, 4vw, 40px); border-radius: var(--radius-lg);
  background: var(--color-surface); border: 1px solid var(--color-divider); box-shadow: var(--shadow-lg);
  animation: rise .25s ease;
}
.dialog-close { position: absolute; top: 12px; right: 12px; width: 36px; height: 36px; padding: 0; }
.dialog .card-title { font-size: 40px; }
.dialog section + section { padding-top: 16px; border-top: 1px solid var(--color-divider); }
.timeline { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.timeline li { display: grid; grid-template-columns: 64px 1fr; gap: 12px; font-size: 14px; }
.timeline .year { font-family: var(--font-heading); font-size: 18px; color: var(--color-accent-strong); line-height: 1.2; }

@keyframes fade { from { opacity: 0; } }
@keyframes rise { from { opacity: 0; transform: translateY(12px); } }

/* Появление при прокрутке */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s cubic-bezier(.22,.61,.36,1), transform .7s cubic-bezier(.22,.61,.36,1); will-change: opacity, transform; }
.reveal.visible { opacity: 1; transform: none; }
/* Лёгкий каскад появления внутри сеток */
.team-grid .card:nth-child(2), .ach-grid .reveal:nth-child(2), .writeup-grid .reveal:nth-child(2) { transition-delay: .08s; }
.team-grid .card:nth-child(3), .ach-grid .reveal:nth-child(3), .writeup-grid .reveal:nth-child(3) { transition-delay: .16s; }
.team-grid .card:nth-child(4), .ach-grid .reveal:nth-child(4), .writeup-grid .reveal:nth-child(4) { transition-delay: .24s; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; transition-delay: 0s !important; }
  .card:hover, .card:active, .ach-card:hover { transform: none; }
  .theme-toggle:hover { transform: none; }
}

/* ---------- Логотип ---------- */
.logo-mark, .hero-logo {
  display: inline-block; flex: none; background: currentColor;
  -webkit-mask: url("assets/logo.png") center / contain no-repeat;
          mask: url("assets/logo.png") center / contain no-repeat;
}
.nav-brand { display: inline-flex; align-items: center; gap: 10px; }
.nav-brand .logo-mark {
  width: 22px; height: 42px; margin: -6px 0; color: var(--color-accent);
  transition: color .2s ease, transform .3s ease;
}
.nav-brand:hover .logo-mark { color: var(--color-accent-strong); transform: translateY(-1px); }
.footer-brand { display: inline-flex; align-items: center; gap: 12px; }
.footer-brand .logo-mark { width: 26px; height: 50px; color: var(--color-accent); }

.hero { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 0 clamp(32px, 6vw, 88px); }
.hero-body { grid-column: 1; grid-row: 1; min-width: 0; }
.hero-logo {
  grid-column: 2; grid-row: 1; justify-self: end;
  width: clamp(170px, 20vw, 250px); aspect-ratio: 179 / 343;
  color: var(--color-accent);
  filter: drop-shadow(0 10px 24px color-mix(in srgb, var(--color-accent) 22%, transparent));
  animation: rise .9s cubic-bezier(.22,.61,.36,1) both .1s;
}
@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; }
  .hero-logo { grid-row: auto; grid-column: 1; justify-self: start; width: 96px; margin-bottom: 28px; }
  .hero-body { grid-row: auto; }
}

/* ---------- Hack The Box ---------- */
.htb-link {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--font-heading); font-weight: 600; font-size: 14px; line-height: 1;
  color: var(--color-text); text-decoration: none;
  padding: 6px 14px 6px 10px; border: 1px solid var(--color-divider); border-radius: 999px;
  transition: border-color .2s, color .2s, transform .2s, box-shadow .2s;
}
.htb-link .htb-ico { width: 17px; height: 17px; color: var(--color-accent-strong); transition: transform .4s ease; }
.htb-link:hover { color: var(--color-accent-strong); border-color: var(--color-accent); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.htb-link:hover .htb-ico { transform: rotate(60deg); }
@media (prefers-reduced-motion: reduce) {
  .hero-logo { animation: none; }
  .htb-link:hover, .htb-link:hover .htb-ico, .nav-brand:hover .logo-mark { transform: none; }
}
.nav-brand .logo-mark, .footer-brand .logo-mark { -webkit-mask-image: url("assets/logo-bold.png"); mask-image: url("assets/logo-bold.png"); }