:root{
  --bg:#070b16;
  --bg2:#0e1630;
  --card:rgba(255,255,255,0.06);
  --card-strong:rgba(255,255,255,0.12);
  --stroke:rgba(255,255,255,0.14);
  --text:#f2f5ff;
  --muted:rgba(242,245,255,0.72);
  --muted-2:rgba(242,245,255,0.55);
  --accent:#5b92e5;
  --accent-2:#7ae2ff;
  --ok:#44e39b;
  --warn:#ffb755;
  --shadow:0 18px 60px rgba(0,0,0,0.35);
  --radius:18px;
  --max-width:1120px;
  --sans:"Inter", "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
  --mono:"JetBrains Mono", SFMono-Regular, Menlo, Consolas, "Courier New", monospace;
}
[data-theme="light"]{
  --bg:#eef2ff;
  --bg2:#ffffff;
  --card:rgba(12,18,36,0.04);
  --card-strong:rgba(12,18,36,0.08);
  --stroke:rgba(12,18,36,0.12);
  --text:#050816;
  --muted:rgba(5,8,22,0.75);
  --muted-2:rgba(5,8,22,0.6);
  --shadow:0 10px 30px rgba(4,10,24,0.12);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  background:radial-gradient(1200px 600px at 8% -10%, rgba(90,147,230,0.32), transparent 60%),
             radial-gradient(900px 520px at 95% 0%, rgba(122,226,255,0.18), transparent 60%),
             linear-gradient(180deg, var(--bg), var(--bg2));
  color:var(--text);
  line-height:1.5;
}
a{color:inherit;text-decoration:none;}
a:hover{text-decoration:underline;}
img{max-width:100%;display:block;}
.wrap{width:min(var(--max-width), calc(100% - 40px));margin:0 auto;}
.glow-blur{
  position:absolute;
  inset:-30%;
  background:radial-gradient(circle at 20% 20%, rgba(122,226,255,0.55), transparent 55%) ,
             radial-gradient(circle at 80% 0%, rgba(91,146,229,0.35), transparent 60%);
  filter:blur(50px);
  opacity:0.45;
  pointer-events:none;
}
.skip-link{
  position:absolute;
  left:-9999px;
  top:auto;
  background:var(--card);
  color:var(--text);
  padding:10px 14px;
  border-radius:12px;
  border:1px solid var(--stroke);
}
.skip-link:focus{left:20px;top:10px;}
header{
  position:sticky;top:0;z-index:40;
  backdrop-filter:blur(16px);
  background:linear-gradient(180deg, rgba(7,11,22,0.92), rgba(7,11,22,0.55));
  border-bottom:1px solid var(--stroke);
}
[data-theme="light"] header{background:linear-gradient(180deg, rgba(248,250,255,0.95), rgba(248,250,255,0.8));}
.topbar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 0;
}
.brand{display:flex;align-items:center;gap:12px;min-width:210px;}
.logo{
  width:42px;height:42px;border-radius:14px;
  background:linear-gradient(135deg, rgba(91,146,229,1), rgba(65,197,255,1));
  box-shadow:var(--shadow);
  position:relative;overflow:hidden;
}
.logo:after{content:"";position:absolute;inset:-40%;background:radial-gradient(circle at 25% 25%, rgba(255,255,255,0.8), transparent 55%);transform:rotate(18deg);}
.brand h1{margin:0;font-size:15px;letter-spacing:0.4px;}
.brand small{display:block;margin-top:2px;color:var(--muted);font-size:12px;letter-spacing:0.4px;}
nav{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:center;}
nav a{padding:8px 12px;border-radius:999px;font-size:13px;color:var(--muted);border:1px solid transparent;transition:color .2s, background .2s, border-color .2s;}
nav a.active,nav a:hover{color:var(--text);border-color:var(--stroke);background:rgba(255,255,255,0.08);text-decoration:none;}
[data-theme="light"] nav a{color:rgba(8,12,36,0.7);}
[data-theme="light"] nav a.active,[data-theme="light"] nav a:hover{background:rgba(8,12,36,0.08);color:#050816;}
.controls{display:flex;align-items:center;gap:10px;min-width:220px;justify-content:flex-end;flex-wrap:wrap;}
.lang-switch, .theme-btn{
  display:inline-flex;align-items:center;gap:6px;padding:8px 10px;border-radius:999px;border:1px solid var(--stroke);
  background:var(--card);font-size:12px;color:var(--muted);
}
.lang-switch button, .theme-btn button{
  border:none;background:none;color:inherit;font:inherit;padding:6px 8px;border-radius:10px;cursor:pointer;
}
.lang-switch button[aria-pressed="true"], .theme-btn button[aria-pressed="true"]{background:rgba(91,146,229,0.2);color:var(--text);}
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 16px;border-radius:16px;border:1px solid rgba(91,146,229,0.4);background:linear-gradient(135deg, rgba(91,146,229,0.95), rgba(122,226,255,0.75));color:#051024;font-weight:600;font-size:14px;box-shadow:var(--shadow);cursor:pointer;}
.btn.secondary{background:transparent;border:1px solid var(--stroke);color:var(--text);box-shadow:none;}
[data-theme="light"] .btn.secondary{color:#050816;border-color:rgba(8,12,36,0.2);}
main{padding:48px 0 24px;}
.hero{padding-bottom:32px;display:grid;grid-template-columns:1.1fr 0.9fr;gap:24px;align-items:stretch;}
.hero-visual{display:flex;flex-direction:column;gap:18px;}
.hero-card{border-radius:28px;background:linear-gradient(145deg, rgba(255,255,255,0.05), rgba(255,255,255,0));border:1px solid var(--stroke);padding:28px;box-shadow:var(--shadow);position:relative;overflow:hidden;}
[data-theme="light"] .hero-card{background:rgba(255,255,255,0.9);border-color:rgba(8,12,36,0.12);}
.hero-card:before{content:"";position:absolute;inset:-25%;background:radial-gradient(360px 360px at 10% 10%, rgba(122,226,255,0.25), transparent 60%),radial-gradient(400px 400px at 90% -10%, rgba(91,146,229,0.35), transparent 70%);}
.hero-card>*{position:relative;z-index:2;}
.hero h2{margin:0 0 18px;font-size:clamp(32px,3.5vw,52px);line-height:1.05;letter-spacing:-0.8px;}
.hero p{margin:0 0 22px;color:var(--muted);font-size:16px;max-width:62ch;}
.hero .micro{display:flex;flex-wrap:wrap;gap:10px;color:var(--muted-2);font-size:13px;margin-top:20px;}
.hero .micro span{display:flex;align-items:center;gap:6px;}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px;}
.dot{width:7px;height:7px;border-radius:999px;background:var(--accent-2);box-shadow:0 0 0 4px rgba(122,226,255,0.18);}
.hero-media{position:relative;border-radius:28px;overflow:hidden;border:1px solid rgba(255,255,255,0.18);background:linear-gradient(180deg, rgba(11,16,35,0.65), rgba(5,7,16,0.95));box-shadow:var(--shadow);}
.hero-media img{width:100%;height:100%;object-fit:cover;opacity:0.9;mix-blend-mode:screen;}
[data-theme="light"] .hero-media img{mix-blend-mode:normal;opacity:0.85;}
.media-chip{
  position:absolute;
  right:18px;
  top:18px;
  background:rgba(5,8,24,0.8);
  color:var(--text);
  border-radius:999px;
  padding:8px 14px;
  font-size:13px;
  display:flex;
  align-items:center;
  gap:6px;
  border:1px solid rgba(255,255,255,0.15);
}
[data-theme="light"] .media-chip{
  background:rgba(255,255,255,0.92);
  color:#050816;
  border-color:rgba(8,12,36,0.18);
}
.media-chip svg{width:16px;height:16px;fill:currentColor;}
.media-stack{position:absolute;left:18px;bottom:18px;display:flex;flex-direction:column;gap:10px;}
.media-stack span{background:rgba(3,6,18,0.65);backdrop-filter:blur(10px);padding:8px 12px;border-radius:14px;font-size:12px;border:1px solid rgba(255,255,255,0.08);color:var(--text);}
[data-theme="light"] .media-stack span{background:rgba(255,255,255,0.9);color:#050816;border-color:rgba(8,12,36,0.08);}
.stats{display:grid;grid-template-columns:repeat(2, minmax(0,1fr));gap:14px;}
.stat-card{padding:18px;border-radius:18px;background:var(--card);border:1px solid var(--stroke);}
.stat-card b{display:block;font-size:16px;margin-bottom:6px;}
.stat-card span{color:var(--muted);font-size:13px;}
section{padding:40px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:20px;flex-wrap:wrap;}
.section-head h3{margin:0;font-size:22px;}
.section-head p{margin:0;color:var(--muted);max-width:64ch;font-size:14px;}
.card-grid{display:grid;grid-template-columns:repeat(auto-fit, minmax(240px,1fr));gap:16px;}
.card{border-radius:18px;border:1px solid var(--stroke);background:var(--card);padding:18px;}
.card h4{margin:0 0 10px;font-size:16px;}
.card p{margin:0;color:var(--muted);font-size:14px;}
.section-sub{color:var(--muted);font-size:14px;max-width:60ch;}
.ai-showcase{position:relative;}
.ai-showcase:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 0%, rgba(91,146,229,0.18), transparent 60%);pointer-events:none;}
.showcase-grid{display:grid;grid-template-columns:repeat(auto-fit, minmax(280px,1fr));gap:18px;}
.showcase-card{border-radius:22px;border:1px solid rgba(255,255,255,0.08);background:rgba(255,255,255,0.02);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;min-height:360px;}
[data-theme="light"] .showcase-card{background:rgba(255,255,255,0.95);border-color:rgba(8,12,36,0.08);}
.showcase-img{height:200px;background-size:cover;background-position:center;position:relative;}
.showcase-img:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg, rgba(5,5,15,0.1), rgba(5,5,15,0.8));}
.showcase-body{padding:18px;display:flex;flex-direction:column;gap:12px;flex:1;}
.showcase-badge{font-size:12px;text-transform:uppercase;letter-spacing:0.4px;color:var(--accent-2);}
[data-theme="light"] .showcase-badge{color:var(--accent);}
.showcase-tags{display:flex;flex-wrap:wrap;gap:8px;font-size:12px;color:var(--muted);}
.showcase-tags span{border-radius:999px;border:1px solid var(--stroke);padding:4px 10px;}
.ai-widget-section{padding-top:10px;}
.ai-widget{border-radius:28px;border:1px solid rgba(255,255,255,0.12);background:linear-gradient(180deg, rgba(9,12,28,0.95), rgba(4,6,16,0.95));padding:24px;box-shadow:var(--shadow);position:relative;overflow:hidden;}
[data-theme="light"] .ai-widget{background:linear-gradient(180deg, rgba(255,255,255,0.98), rgba(239,244,255,0.95));border-color:rgba(8,12,36,0.12);}
.ai-widget:before{content:"";position:absolute;inset:-30%;background:radial-gradient(circle at 10% 0%, rgba(122,226,255,0.35), transparent 55%),radial-gradient(circle at 80% 80%, rgba(91,146,229,0.4), transparent 60%);filter:blur(60px);opacity:0.6;}
.ai-widget>*{position:relative;z-index:2;}
.widget-screen{background:rgba(0,0,0,0.45);border-radius:18px;border:1px solid rgba(255,255,255,0.12);padding:18px;display:flex;flex-direction:column;gap:12px;min-height:220px;}
[data-theme="light"] .widget-screen{background:rgba(255,255,255,0.9);border-color:rgba(8,12,36,0.12);color:#050816;}
.widget-line{display:flex;align-items:flex-start;gap:10px;color:var(--muted);font-size:13px;}
.widget-line b{color:var(--text);font-size:12px;letter-spacing:0.4px;}
.widget-line.highlight{color:var(--text);font-size:16px;font-weight:600;}
.widget-line.highlight.is-changing{opacity:0.35;transition:opacity 0.4s;}
.widget-avatar{width:32px;height:32px;border-radius:12px;background:var(--accent);display:grid;place-items:center;color:#041326;font-weight:700;font-family:var(--mono);}
.widget-meta{display:flex;flex-wrap:wrap;gap:8px;font-size:12px;color:var(--muted);}
.concierge{margin-top:18px;border-radius:22px;border:1px solid rgba(255,255,255,0.12);background:rgba(0,0,0,0.35);padding:18px;display:flex;flex-direction:column;gap:12px;}
[data-theme="light"] .concierge{background:rgba(255,255,255,0.9);border-color:rgba(8,12,36,0.12);}
.concierge-messages{max-height:240px;overflow-y:auto;display:flex;flex-direction:column;gap:10px;}
.message{padding:10px 12px;border-radius:14px;font-size:13px;line-height:1.4;}
.message-user{align-self:flex-end;background:var(--accent);color:#041021;}
.message-ai{align-self:flex-start;background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.12);}
[data-theme="light"] .message-ai{background:rgba(8,12,36,0.05);border-color:rgba(8,12,36,0.12);color:#050816;}
.concierge-form{display:flex;gap:10px;flex-wrap:wrap;}
.concierge-form textarea{flex:1;min-height:80px;border-radius:14px;border:1px solid var(--stroke);background:rgba(0,0,0,0.18);color:var(--text);padding:10px;font:inherit;}
[data-theme="light"] .concierge-form textarea{background:rgba(255,255,255,0.95);color:#050816;}
.concierge-form button{flex:0 0 auto;}
.ai-list{display:flex;flex-direction:column;gap:14px;}
.ai-list li{list-style:none;background:rgba(255,255,255,0.05);border:1px solid var(--stroke);padding:14px;border-radius:18px;color:var(--muted);font-size:14px;display:flex;gap:10px;}
.ai-list li:before{content:"•";color:var(--accent-2);font-size:18px;margin-top:-4px;}
.logo-section{padding-top:20px;}
.logo-wall{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:16px;text-transform:uppercase;font-size:13px;color:var(--muted);opacity:0.8;}
.logo-wall span{border-radius:16px;border:1px solid rgba(255,255,255,0.12);padding:14px;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,0.25);}
[data-theme="light"] .logo-wall span{background:rgba(255,255,255,0.9);border-color:rgba(8,12,36,0.12);color:#050816;}
.calendar{padding-top:10px;}
.calendar-grid{display:grid;grid-template-columns:1.1fr 0.9fr;gap:24px;}
.calendar-panel, .calendar-list{border-radius:22px;border:1px solid var(--stroke);background:linear-gradient(180deg, var(--card-strong), var(--card));padding:20px;box-shadow:var(--shadow);}
[data-theme="light"] .calendar-panel,[data-theme="light"] .calendar-list{background:rgba(255,255,255,0.96);border-color:rgba(8,12,36,0.12);}
.calendar-month{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px;}
.calendar-month strong{font-size:20px;}
.calendar-month span{color:var(--muted);font-size:13px;}
.calendar-month button{width:36px;height:36px;border-radius:12px;border:1px solid var(--stroke);background:rgba(255,255,255,0.08);color:var(--text);cursor:pointer;}
[data-theme="light"] .calendar-month button{background:rgba(8,12,36,0.08);color:#050816;border-color:rgba(8,12,36,0.18);}
.calendar-weekdays,.calendar-days{display:grid;grid-template-columns:repeat(7, minmax(0,1fr));gap:6px;}
.calendar-weekdays{font-size:11px;text-transform:uppercase;color:var(--muted);letter-spacing:0.4px;margin-bottom:8px;}
.calendar-days{min-height:220px;}
.calendar-day{min-height:50px;border-radius:12px;border:1px solid transparent;padding:6px 8px;text-align:right;font-size:13px;color:var(--muted);position:relative;background:rgba(0,0,0,0.08);}
[data-theme="light"] .calendar-day{background:rgba(8,12,36,0.05);color:rgba(5,8,22,0.75);}
.calendar-day.is-empty{background:transparent;opacity:0.2;}
.calendar-day.has-event{border-color:rgba(91,146,229,0.4);color:var(--text);box-shadow:inset 0 0 0 1px rgba(91,146,229,0.25);}
.calendar-day .dots{position:absolute;left:8px;bottom:6px;display:flex;gap:5px;}
.calendar-day .dot.workshop{background:#5b92e5;box-shadow:0 0 0 3px rgba(91,146,229,0.18);}
.calendar-day .dot.hack{background:#44e39b;box-shadow:0 0 0 3px rgba(68,227,155,0.18);}
.calendar-day .dot.talk{background:#7ae2ff;box-shadow:0 0 0 3px rgba(122,226,255,0.18);}
.event-list{display:flex;flex-direction:column;gap:14px;}
.calendar-event{display:flex;gap:14px;border-radius:18px;border:1px solid var(--stroke);background:rgba(0,0,0,0.08);padding:14px;}
[data-theme="light"] .calendar-event{background:rgba(255,255,255,0.9);border-color:rgba(8,12,36,0.12);}
.date-chip{min-width:70px;text-align:center;border-radius:14px;border:1px solid rgba(255,255,255,0.18);padding:10px 6px;font-weight:700;font-size:20px;line-height:1.1;}
.date-chip span{display:block;font-size:11px;text-transform:uppercase;color:var(--muted);margin-top:6px;}
.event-body{flex:1;display:flex;flex-direction:column;gap:6px;}
.event-tags{display:flex;flex-wrap:wrap;gap:6px;font-size:11px;text-transform:uppercase;color:var(--muted-2);}
.event-tags .tag{border-radius:999px;border:1px solid var(--stroke);padding:4px 9px;}
.event-meta{display:flex;flex-wrap:wrap;gap:10px;color:var(--muted);font-size:13px;}
.event-badge{font-size:11px;color:var(--accent-2);letter-spacing:0.4px;text-transform:uppercase;}
.chiprow{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px;}
.chip{border-radius:999px;border:1px solid var(--stroke);padding:5px 10px;font-size:12px;color:var(--muted);}
[data-theme="light"] .chip{color:#050816;border-color:rgba(8,12,36,0.15);}
.apply-grid{display:grid;grid-template-columns:1fr 0.9fr;gap:20px;}
form{display:grid;gap:12px;}
form label{font-size:13px;color:var(--muted);display:flex;flex-direction:column;gap:6px;}
input, textarea, select{width:100%;padding:11px 14px;border-radius:14px;border:1px solid var(--stroke);background:rgba(0,0,0,0.08);color:var(--text);font:inherit;}
textarea{min-height:110px;resize:vertical;}
footer{border-top:1px solid var(--stroke);padding:32px 0 50px;margin-top:32px;color:var(--muted);font-size:13px;}
.footer-grid{display:grid;grid-template-columns:1.2fr 0.8fr 0.8fr;gap:18px;}
.footer-grid h5{margin:0 0 10px;color:var(--text);font-size:14px;}
.footer-links{display:flex;flex-direction:column;gap:6px;color:var(--muted);}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;text-transform:uppercase;color:var(--muted);}
.badge:before{content:"";width:8px;height:8px;border-radius:999px;background:var(--accent);}
@media (max-width:1024px){
  .hero{grid-template-columns:1fr;}
  .calendar-grid{grid-template-columns:1fr;}
  .apply-grid{grid-template-columns:1fr;}
  nav{display:none;}
}
@media (max-width:640px){
  .topbar{flex-direction:column;}
  .controls{justify-content:center;}
  .calendar-event{flex-direction:column;}
  .date-chip{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .ai-widget{padding:18px;}
}