/* ============================================================
   ВШТЭ LIFE — молодёжный портал внеучебной жизни
   Дизайн-система. Файл: assets/style.css
   Палитра: фирменные зелёные ВШТЭ СПбГУПТД (из брендбука vshte.ru)
   #118c4e (основной) · #005a31 (тёмный) · #0d9a1a / #42a421 (яркие)
   #00c853 / #10b981 (акценты) · #9dc219 (лайм) · #dbf3d3 (подложка)
   ============================================================ */

:root{
  /* фирменные зелёные */
  --green-950:#04170d;
  --green-900:#052e1b;
  --green-800:#005a31;
  --green-700:#118c4e;
  --green-600:#0d9a1a;
  --green-500:#42a421;
  --green-400:#00c853;
  --lime:#9dc219;
  --mint:#34d399;
  --emerald:#10b981;
  --tint:#dbf3d3;

  /* базовые (тёплый нейтрал с зелёным подтоном) */
  --ink:#15291d;
  --muted:#5d6f64;
  --line:#dfe7de;
  --bg:#f3f7f2;
  --card:#ffffff;
  --white:#ffffff;

  /* тёмные поверхности */
  --navy:#052e1b;      /* герой / шапка / подвал */
  --navy-2:#06391f;

  /* совместимые имена акцентов — все в зелёной гамме */
  --violet:#118c4e;
  --cyan:#0d9a1a;
  --pink:#9dc219;
  --amber:#42a421;
  --green:#00c853;
  --red:#005a31;
  --teal:#10b981;
  --sky:#34d399;
  --indigo:#00875f;

  --grad:linear-gradient(100deg,#118c4e 0%,#0d9a1a 55%,#9dc219 100%);
  --grad-2:linear-gradient(100deg,#00c853 0%,#9dc219 100%);
  --grad-3:linear-gradient(100deg,#005a31 0%,#118c4e 100%);

  --r-lg:26px;
  --r-md:18px;
  --r-sm:12px;

  --shadow:0 10px 30px rgba(5,46,27,.10);
  --shadow-lg:0 24px 60px rgba(5,46,27,.16);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Segoe UI",system-ui,-apple-system,"Inter","Roboto",Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
.wrap{max-width:1160px;margin:0 auto;padding:0 20px}

/* ---------- utility ---------- */
.grad-text{
  background:var(--grad);
  -webkit-background-clip:text;background-clip:text;
  color:transparent;
}
.section{padding:64px 0}
.section--tight{padding:40px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;
  color:var(--green-700);
}
.h2{font-size:clamp(26px,4vw,40px);line-height:1.15;font-weight:900;letter-spacing:-.02em}
.h2+p{margin-top:14px;color:var(--muted);max-width:720px}
.center{text-align:center}
.center .h2+p{margin-left:auto;margin-right:auto}

.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 22px;border-radius:999px;
  font-weight:800;font-size:15px;cursor:pointer;border:0;
  transition:transform .18s ease, box-shadow .18s ease, filter .18s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(0)}
.btn--grad{background:var(--grad);color:#fff;box-shadow:0 10px 24px rgba(13,154,26,.35)}
.btn--dark{background:var(--green-900);color:#fff}
.btn--ghost{background:#fff;color:var(--ink);box-shadow:var(--shadow);border:1px solid var(--line)}
.btn--outline{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.45)}
.btn--sm{padding:9px 16px;font-size:13.5px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 15px;border-radius:999px;font-size:13.5px;font-weight:700;
  background:#fff;border:1.5px solid var(--line);color:var(--muted);
  cursor:pointer;transition:.18s;user-select:none;
}
.chip:hover{border-color:var(--green-700);color:var(--green-700)}
.chip.active{background:var(--green-900);color:#fff;border-color:var(--green-900)}

/* ---------- top bar ---------- */
.topbar{
  position:sticky;top:0;z-index:50;
  background:rgba(5,46,27,.92);backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:66px;gap:18px}
.brand{display:flex;align-items:center;gap:11px}
.brand .logo{
  width:40px;height:40px;border-radius:12px;object-fit:cover;
  background:#fff;padding:3px;box-shadow:0 0 0 2px rgba(255,255,255,.15);
}
.brand b{color:#fff;font-size:17px;letter-spacing:.01em}
.brand b span{color:var(--lime)}
.brand small{display:block;color:#a9c4ad;font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;font-weight:700}
.nav-links{display:flex;gap:4px;align-items:center}
.nav-links a{
  color:#cfe0cd;font-weight:700;font-size:14px;
  padding:9px 13px;border-radius:10px;transition:.16s;
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.08)}
.nav-links a.active{color:#fff;background:linear-gradient(100deg,rgba(17,140,78,.95),rgba(13,154,26,.95))}
.burger{display:none;background:none;border:0;cursor:pointer}
.burger span{display:block;width:24px;height:2.5px;background:#fff;margin:5px 0;border-radius:2px}
.nav .btn{background:var(--grad);color:#fff;box-shadow:none}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:radial-gradient(1200px 600px at 85% -10%,rgba(0,200,83,.28),transparent 60%),
             radial-gradient(900px 500px at -10% 20%,rgba(13,154,26,.30),transparent 55%),
             linear-gradient(160deg,#052e1b 0%,#06391f 55%,#0a4a27 100%);
}
.hero .wrap{position:relative;z-index:2}
.hero-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;padding:66px 0 60px}
.hero h1{
  font-size:clamp(30px,5vw,54px);line-height:1.08;font-weight:900;letter-spacing:-.02em;
}
.hero h1 .grad-text{background:linear-gradient(100deg,#00c853,#9dc219);-webkit-background-clip:text;background-clip:text}
.hero p.sub{margin:18px 0 8px;color:#cfe0cd;font-size:17px;max-width:540px}
.hero .tags{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0 26px}
.hero .tag{
  padding:7px 14px;border-radius:999px;font-size:13px;font-weight:700;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);color:#e2f0e2;
}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap}
.hero-visual{position:relative}
.hero-photo{
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-lg);
  border:1px solid rgba(255,255,255,.14);transform:rotate(2deg);
}
.hero-photo img{width:100%;height:100%;object-fit:cover}
.float-card{
  position:absolute;background:rgba(255,255,255,.96);color:var(--ink);
  border-radius:16px;box-shadow:var(--shadow-lg);padding:12px 16px;
  font-size:13px;font-weight:800;display:flex;align-items:center;gap:9px;
}
.float-card .num{font-size:20px;font-weight:900;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.float-card--1{bottom:26px;left:-14px;transform:rotate(-3deg)}
.float-card--2{top:20px;right:-8px;transform:rotate(3deg)}
.marquee{
  background:var(--grad);color:#fff;font-weight:900;letter-spacing:.04em;
  padding:12px 0;font-size:15px;white-space:nowrap;overflow:hidden;
}
.marquee span{display:inline-block;padding-left:100%}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:-34px;position:relative;z-index:5}
.stat{
  background:var(--card);border-radius:var(--r-md);padding:20px 18px;box-shadow:var(--shadow);
  border:1px solid var(--line);
}
.stat .num{font-size:clamp(26px,3.4vw,38px);font-weight:900;line-height:1;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat .lbl{margin-top:8px;color:var(--muted);font-size:13.5px;font-weight:700}

/* ---------- cards ---------- */
.grid{display:grid;gap:18px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{
  background:var(--card);border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--shadow);border:1px solid var(--line);
  transition:transform .2s ease, box-shadow .2s ease;
}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.card .thumb{height:150px;overflow:hidden;background:linear-gradient(120deg,#e8f4e5,#e5f7ee)}
.card .thumb img{width:100%;height:100%;object-fit:cover}
.card .body{padding:18px}
.card .cat{
  display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:800;
  padding:5px 11px;border-radius:999px;margin-bottom:10px;
}
.card h3{font-size:17px;font-weight:800;line-height:1.3}
.card p{margin-top:8px;color:var(--muted);font-size:14px}
.card .foot{display:flex;justify-content:space-between;align-items:center;margin-top:14px;font-size:13px;color:var(--muted);font-weight:700}

/* направление-карточка */
.dir{background:var(--card);border-radius:var(--r-md);padding:22px;box-shadow:var(--shadow);border:1px solid var(--line);transition:.2s}
.dir:hover{transform:translateY(-4px)}
.dir .ico{
  width:52px;height:52px;border-radius:15px;display:grid;place-items:center;
  font-size:26px;margin-bottom:12px;
}
.dir h3{font-size:17px;font-weight:800}
.dir p{margin-top:8px;color:var(--muted);font-size:13.8px}
.dir .list{margin-top:10px;display:flex;flex-wrap:wrap;gap:6px}
.dir .list span{font-size:12px;font-weight:700;background:#edf5ea;color:#4c6152;padding:4px 10px;border-radius:999px}

/* ---------- sections with tint ---------- */
.band{background:var(--green-900);color:#fff;position:relative;overflow:hidden}
.band::before{content:"";position:absolute;inset:0;background:radial-gradient(700px 400px at 100% 0,rgba(0,200,83,.22),transparent 60%)}
.band .wrap{position:relative;z-index:2}
.band .h2{color:#fff}
.band .h2+p{color:#b8cfb8}

/* ---------- event feature ---------- */
.feature{
  background:var(--card);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow);
  display:grid;grid-template-columns:.9fr 1.1fr;border:1px solid var(--line);
}
.feature .img{min-height:260px}
.feature .img img{width:100%;height:100%;object-fit:cover}
.feature .body{padding:26px}
.feature .kicker{font-size:12.5px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:#7a9408}
.feature h3{font-size:24px;font-weight:900;line-height:1.2;margin:8px 0 10px}
.feature p{color:var(--muted);font-size:14.5px}
.feature .meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.feature .meta span{font-size:12.5px;font-weight:700;background:#edf5ea;padding:6px 12px;border-radius:999px;color:#48604f}

/* ---------- plan / фильтры ---------- */
.filters{display:flex;flex-wrap:wrap;gap:9px;margin:22px 0 8px}
.filter-label{font-size:12px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-top:22px}
.events{display:flex;flex-direction:column;gap:12px;margin-top:16px}
.ev{
  display:grid;grid-template-columns:auto 1fr auto;gap:16px;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:15px 18px;box-shadow:0 4px 14px rgba(5,46,27,.05);transition:.16s;
}
.ev:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.ev .emo{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;font-size:22px;flex:none}
.ev h4{font-size:15px;font-weight:800;line-height:1.35}
.ev .sub{font-size:12.5px;color:var(--muted);margin-top:2px;font-weight:600}
.ev .meta{text-align:right;flex:none}
.ev .date{font-size:12.5px;font-weight:800;color:var(--ink);background:#e7f2e4;padding:5px 11px;border-radius:9px;display:inline-block}
.ev .place{margin-top:4px;font-size:12px;color:var(--muted);font-weight:600}
.empty{background:#fff;border:1.5px dashed var(--line);border-radius:var(--r-md);padding:34px;text-align:center;color:var(--muted);font-weight:700}
.count-badge{font-size:13px;font-weight:800;color:var(--green-700)}

/* ---------- docs ---------- */
.doc-group{margin-bottom:26px}
.doc-group h3{font-size:17px;font-weight:800;display:flex;align-items:center;gap:9px;margin-bottom:12px}
.doc{
  display:flex;gap:14px;align-items:flex-start;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-md);padding:15px 18px;margin-bottom:10px;
  box-shadow:0 4px 14px rgba(5,46,27,.04);transition:.16s;
}
.doc:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.doc .ficon{font-size:22px;flex:none;width:44px;height:44px;border-radius:12px;background:#edf5ea;display:grid;place-items:center}
.doc h4{font-size:15px;font-weight:800;line-height:1.35}
.doc p{font-size:13px;color:var(--muted);margin-top:3px}
.doc .meta{font-size:12px;color:#7c907f;font-weight:700;margin-top:6px}
.doc a.btn{margin-left:auto;flex:none;align-self:center}

/* ---------- contacts ---------- */
.person{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:6px;
}
.person .avatar{
  width:56px;height:56px;border-radius:16px;background:var(--grad);color:#fff;
  display:grid;place-items:center;font-size:24px;font-weight:900;margin-bottom:8px;
}
.person h3{font-size:16px;font-weight:800}
.person .role{color:var(--green-700);font-size:13px;font-weight:800}
.person .c{color:var(--muted);font-size:13.5px}
.person a.mail{color:var(--green-600);font-weight:700}

/* ---------- faq ---------- */
.faq{max-width:820px;margin:0 auto}
.faq details{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px 22px;margin-bottom:12px;box-shadow:0 4px 14px rgba(5,46,27,.04);
}
.faq summary{cursor:pointer;font-weight:800;font-size:15.5px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq summary::after{content:"+";font-size:22px;color:var(--green-700);font-weight:900}
.faq details[open] summary::after{content:"–"}
.faq details p{margin-top:10px;color:var(--muted);font-size:14.5px}

/* ---------- footer ---------- */
footer{background:#04170d;color:#8fae95;padding:52px 0 0;margin-top:0}
footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px;padding-bottom:34px}
footer h4{color:#fff;font-size:14px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;margin-bottom:14px}
footer a{display:block;padding:5px 0;font-size:14px;color:#8fae95}
footer a:hover{color:var(--lime)}
footer .brand{color:#fff;font-size:18px;font-weight:900;margin-bottom:10px}
footer .brand span{color:var(--lime)}
footer .desc{font-size:13.5px;color:#7f9a82;max-width:300px}
footer .bottom{border-top:1px solid rgba(255,255,255,.08);padding:18px 0;font-size:12.5px;color:#5f7663;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}

/* ---------- badges / misc ---------- */
.notice{
  background:linear-gradient(100deg,rgba(17,140,78,.14),rgba(157,194,25,.16));
  border:1.5px solid rgba(17,140,78,.4);border-radius:var(--r-md);
  padding:16px 20px;font-size:14px;color:#2f5c40;font-weight:600;margin:20px 0;
}
.pill-row{display:flex;flex-wrap:wrap;gap:9px;margin-top:14px}
.breadcrumb{font-size:13px;color:var(--muted);font-weight:600;padding:18px 0 0}
.breadcrumb a{color:var(--green-700);font-weight:800}

/* ---------- responsive ---------- */
@media(max-width:960px){
  .hero-inner{grid-template-columns:1fr;padding:44px 0 48px}
  .hero-visual{max-width:480px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr)}
  .feature{grid-template-columns:1fr}
  .feature .img{min-height:200px}
  footer .cols{grid-template-columns:1fr 1fr}
  .nav-links{
    position:fixed;inset:66px 0 auto 0;flex-direction:column;align-items:stretch;
    background:rgba(5,46,27,.98);padding:14px 20px 22px;gap:6px;display:none;
    border-bottom:1px solid rgba(255,255,255,.08);
  }
  .nav-links.open{display:flex}
  .burger{display:block}
  .nav .btn{display:none}
  .ev{grid-template-columns:auto 1fr;grid-template-areas:"emo t" "emo m"}
  .ev .meta{grid-area:m;text-align:left;margin-top:4px}
  .ev h4,.ev .sub{grid-area:t}
}
@media(max-width:560px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr;gap:10px}
  .section{padding:46px 0}
}