/* ===== 제4회 TU 게임챌린지 2026 — verse8 스타일 테마 ===== */
:root{
  --bg:#0a0e16;
  --bg-2:#0d121c;
  --panel:#141b26;
  --panel-2:#1a2230;
  --line:rgba(255,255,255,.09);
  --line-2:rgba(255,255,255,.14);
  --txt:#eaf0f8;
  --txt-dim:#9aa7ba;
  --txt-mute:#636f80;
  --p1:#38bdf8;   /* sky   */
  --p2:#2dd4bf;   /* teal — primary accent */
  --p3:#818cf8;   /* indigo*/
  --gold:#fbbf24;
  --grad:linear-gradient(100deg,#2dd4bf,#22d3ee 55%,#38bdf8);
  --maxw:1180px;
  --r:16px;
  --shadow:0 24px 60px -24px rgba(0,0,0,.75);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--txt);
  font-family:"Pretendard","Apple SD Gothic Neo","Noto Sans KR",system-ui,-apple-system,"Segoe UI",sans-serif;
  line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.eyebrow{display:inline-block;font-size:.76rem;letter-spacing:.18em;font-weight:700;
  text-transform:uppercase;color:var(--p2);margin-bottom:12px}
.sec-title{font-size:clamp(1.55rem,3.4vw,2.35rem);font-weight:800;margin:0 0 14px;letter-spacing:-.02em}
.sec-sub{color:var(--txt-dim);max-width:640px;margin:0 auto 44px;font-size:1.0rem}
.center{text-align:center}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ===== NAV ===== */
nav{position:fixed;top:0;left:0;right:0;z-index:50;backdrop-filter:blur(16px);
  background:rgba(10,14,22,.6);border-bottom:1px solid transparent;transition:.3s}
nav.scrolled{background:rgba(10,14,22,.92);border-bottom-color:var(--line)}
.nav-in{max-width:var(--maxw);margin:0 auto;padding:13px 22px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:-.01em}
.brand .dot{width:11px;height:11px;border-radius:50%;background:var(--grad);box-shadow:0 0 14px var(--p2)}
.brand small{color:var(--txt-mute);font-weight:600}
.nav-links{display:flex;align-items:center;gap:24px;font-size:.9rem;font-weight:600}
.nav-links a{color:var(--txt-dim);transition:.2s}
.nav-links a:hover{color:var(--txt)}
.nav-links a.nav-cta{background:var(--p2);color:#06231e;padding:8px 16px;border-radius:999px;font-weight:700}
.nav-links a.nav-cta:hover{background:#3fe3cf;color:#06231e}
.nav-toggle{display:none;background:none;border:0;color:var(--txt);font-size:1.5rem;cursor:pointer}
@media(max-width:860px){
  .nav-links{position:fixed;inset:58px 0 auto 0;flex-direction:column;align-items:flex-start;background:rgba(12,16,24,.98);
    padding:18px 22px;gap:16px;border-bottom:1px solid var(--line);transform:translateY(-130%);transition:.3s}
  .nav-links.open{transform:translateY(0)}
  .nav-toggle{display:block}
}

/* ===== HERO (verse8 스타일 라운드 카드) ===== */
.hero{padding:104px 0 20px}
.hero-card{position:relative;border-radius:26px;overflow:hidden;border:1px solid var(--line);
  min-height:460px;display:flex;align-items:center;isolation:isolate}
.hero-card::before{content:"";position:absolute;inset:0;z-index:-2;
  background:url("../img/works/1b-01-cloudgarden.jpg") center right/cover no-repeat;filter:saturate(1.05)}
.hero-card::after{content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(90deg,#0a0e16 0%,rgba(10,14,22,.94) 38%,rgba(10,14,22,.55) 70%,rgba(10,14,22,.25) 100%)}
.hero-inner{padding:56px 54px;max-width:640px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:7px 15px;border-radius:999px;
  border:1px solid var(--line-2);background:rgba(45,212,191,.08);font-size:.82rem;font-weight:600;color:var(--txt-dim);margin-bottom:22px}
.hero-badge b{color:var(--p2)}
.hero h1{font-size:clamp(2.3rem,6vw,4rem);line-height:1.04;margin:0 0 14px;font-weight:900;letter-spacing:-.03em}
.hero .sub-ko{font-size:clamp(1.02rem,2.2vw,1.28rem);color:#cdd6e4;font-weight:600;margin:0 0 8px}
.hero .host{color:var(--txt-dim);font-size:.96rem;margin-bottom:30px;max-width:520px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:999px;font-weight:700;font-size:.95rem;
  transition:.22s;cursor:pointer;border:1px solid transparent}
.btn-primary{background:var(--p2);color:#06231e;box-shadow:0 10px 26px -10px rgba(45,212,191,.7)}
.btn-primary:hover{background:#3fe3cf;transform:translateY(-2px);box-shadow:0 16px 34px -10px rgba(45,212,191,.8)}
.btn-ghost{border-color:var(--line-2);color:var(--txt);background:rgba(255,255,255,.03)}
.btn-ghost:hover{border-color:var(--p2);color:var(--p2)}

/* ===== STATS ===== */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:16px}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:24px 18px;text-align:center}
.stat .n{font-size:clamp(1.8rem,3.6vw,2.5rem);font-weight:900;letter-spacing:-.02em;line-height:1}
.stat .l{color:var(--txt-dim);font-size:.88rem;margin-top:8px;font-weight:600}
@media(max-width:620px){.stats{grid-template-columns:repeat(2,1fr)}}

.block{padding:80px 0}
.block.alt{background:var(--bg-2)}

/* ===== ABOUT ===== */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:6px}
.about-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:30px;transition:.22s}
.about-card:hover{border-color:var(--line-2)}
.about-card h3{margin:0 0 14px;font-size:1.12rem;display:flex;align-items:center;gap:10px}
.about-card h3 .ic{width:34px;height:34px;border-radius:10px;background:rgba(45,212,191,.12);display:grid;place-items:center;font-size:1.05rem}
.about-card ul{margin:0;padding-left:0;list-style:none}
.about-card li{padding:8px 0 8px 22px;position:relative;color:var(--txt-dim);font-size:.95rem}
.about-card li::before{content:"";position:absolute;left:0;top:15px;width:7px;height:7px;border-radius:50%;background:var(--p2)}
@media(max-width:720px){.about-grid{grid-template-columns:1fr}}

/* ===== POSTER ===== */
.poster-wrap{display:grid;grid-template-columns:minmax(280px,400px) 1fr;gap:44px;align-items:center}
.poster-fig{position:relative}
.poster-fig img{width:100%;border-radius:16px;border:1px solid var(--line);
  box-shadow:0 30px 60px -26px rgba(0,0,0,.8);cursor:pointer;transition:.3s}
.poster-fig img:hover{transform:translateY(-4px)}
.poster-fig::before{content:"공식 포스터";position:absolute;top:14px;left:14px;z-index:2;
  font-size:.7rem;font-weight:800;letter-spacing:.06em;padding:6px 12px;border-radius:999px;
  background:rgba(10,14,22,.78);border:1px solid var(--line-2);color:var(--p2)}
.poster-info h3{font-size:1.4rem;margin:0 0 18px}
.poster-table{display:grid;grid-template-columns:auto 1fr;gap:0}
.poster-table dt{font-weight:700;color:var(--p2);padding:11px 18px 11px 0;font-size:.89rem;border-bottom:1px solid var(--line);white-space:nowrap}
.poster-table dd{margin:0;padding:11px 0;color:var(--txt-dim);font-size:.93rem;border-bottom:1px solid var(--line)}
@media(max-width:780px){.poster-wrap{grid-template-columns:1fr;gap:28px}.poster-fig{max-width:360px;margin:0 auto}}

/* ===== TIMELINE ===== */
.phase-legend{display:flex;gap:18px;justify-content:center;flex-wrap:wrap;margin-bottom:40px}
.phase-legend span{display:inline-flex;align-items:center;gap:8px;font-size:.86rem;font-weight:600;color:var(--txt-dim)}
.phase-legend i{width:11px;height:11px;border-radius:50%}
.ph-pre{background:var(--p1)} .ph-main{background:var(--p2)} .ph-post{background:var(--p3)} .ph-future{background:var(--gold)}
.timeline{position:relative;max-width:820px;margin:0 auto;padding-left:34px}
.timeline::before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--p1),var(--p2),var(--p3),var(--gold))}
.tl-item{position:relative;padding:0 0 28px 26px}
.tl-item::before{content:"";position:absolute;left:-30px;top:4px;width:18px;height:18px;border-radius:50%;
  background:var(--bg);border:3px solid var(--p2);box-shadow:0 0 0 4px rgba(45,212,191,.12)}
.tl-item.pre::before{border-color:var(--p1);box-shadow:0 0 0 4px rgba(56,189,248,.12)}
.tl-item.post::before{border-color:var(--p3);box-shadow:0 0 0 4px rgba(129,140,248,.12)}
.tl-item.future::before{border-color:var(--gold);box-shadow:0 0 0 4px rgba(251,191,36,.14)}
.tl-date{font-size:.8rem;font-weight:700;letter-spacing:.03em;color:var(--p2)}
.tl-item.pre .tl-date{color:var(--p1)} .tl-item.post .tl-date{color:var(--p3)} .tl-item.future .tl-date{color:var(--gold)}
.tl-card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:16px 20px;margin-top:6px;transition:.2s}
.tl-card:hover{border-color:var(--line-2)}
.tl-card h4{margin:0 0 4px;font-size:1.03rem}
.tl-card p{margin:0;color:var(--txt-dim);font-size:.91rem}
.tl-tag{display:inline-block;font-size:.68rem;font-weight:700;padding:3px 9px;border-radius:999px;margin-left:8px;vertical-align:middle;
  background:rgba(251,191,36,.14);color:var(--gold)}

/* ===== TRACKS ===== */
.tracks{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.track{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:26px;transition:.25s}
.track:hover{transform:translateY(-4px);border-color:var(--p2)}
.track .tnum{font-size:.76rem;font-weight:800;letter-spacing:.08em;color:var(--p2)}
.track h3{margin:6px 0 4px;font-size:1.24rem}
.track .who{color:var(--txt-mute);font-size:.87rem;margin-bottom:16px}
.track .desc{color:var(--txt-dim);font-size:.93rem;min-height:46px}
.track .prize{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);display:flex;align-items:baseline;justify-content:space-between}
.track .prize b{font-size:1.45rem;font-weight:900}
.track .prize span{color:var(--txt-mute);font-size:.8rem}
@media(max-width:820px){.tracks{grid-template-columns:1fr}}

/* ===== TABS / CHIPS ===== */
.tabs{display:flex;gap:9px;justify-content:center;flex-wrap:wrap;margin-bottom:32px}
.tab{padding:9px 18px;border-radius:999px;border:1px solid var(--line-2);background:transparent;color:var(--txt-dim);
  font-weight:700;font-size:.9rem;cursor:pointer;transition:.2s}
.tab.active{background:var(--p2);color:#06231e;border-color:transparent}
.tab:hover:not(.active){color:var(--txt);border-color:var(--p2)}

/* ===== WINNERS ===== */
.winners{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.wcard{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:0;transition:.22s;position:relative;overflow:hidden}
.wcard:hover{transform:translateY(-3px);border-color:var(--p2)}
.wshot{display:block;aspect-ratio:16/9;overflow:hidden;background:#0a0e16;cursor:pointer;border-bottom:1px solid var(--line)}
.wshot img{width:100%;height:100%;object-fit:cover;transition:.35s;display:block}
.wcard:hover .wshot img{transform:scale(1.045)}
.wbody{padding:16px 18px 20px}
.wcard.feat{grid-column:span 3;display:grid;grid-template-columns:1.35fr 1fr;gap:0;align-items:stretch;
  background:linear-gradient(120deg,rgba(45,212,191,.08),var(--panel))}
.wcard.feat .wshot{aspect-ratio:auto;height:100%;min-height:230px;border-bottom:0;border-right:1px solid var(--line)}
.wcard.feat .wbody{padding:28px 30px;align-self:center}
.medal{display:inline-flex;align-items:center;gap:7px;font-size:.73rem;font-weight:800;padding:5px 12px;border-radius:999px;letter-spacing:.02em}
.m-대상{background:linear-gradient(90deg,#fbbf24,#f59e0b);color:#2a1800}
.m-최우수상{background:rgba(203,213,225,.92);color:#10151f}
.m-우수상{background:rgba(45,212,191,.15);color:var(--p2);border:1px solid rgba(45,212,191,.4)}
.m-장려상{background:rgba(56,189,248,.14);color:#7dd3fc;border:1px solid rgba(56,189,248,.34)}
.wcard h4{margin:12px 0 6px;font-size:1.1rem;letter-spacing:-.01em}
.wcard.feat h4{font-size:1.45rem;margin-top:12px}
.wcard .team{color:var(--txt-mute);font-size:.85rem}
.wcard .intent{color:var(--txt-dim);font-size:.9rem;margin-top:12px;border-left:2px solid var(--p2);padding-left:14px}
.trackgroup{display:none}
.trackgroup.show{display:block;animation:fade .4s ease}
@keyframes fade{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.group-label{font-size:.8rem;font-weight:800;letter-spacing:.1em;color:var(--txt-mute);text-transform:uppercase;
  margin:30px 0 14px;display:flex;align-items:center;gap:12px}
.group-label::after{content:"";flex:1;height:1px;background:var(--line)}
@media(max-width:820px){.winners{grid-template-columns:1fr}.wcard.feat{grid-template-columns:1fr}.wcard.feat .wshot{border-right:0;border-bottom:1px solid var(--line)}.wcard.feat h4{font-size:1.28rem}}

/* ===== PRESS (국제신문) ===== */
.press-card{display:grid;grid-template-columns:1.05fr 1.2fr;gap:0;background:var(--panel);
  border:1px solid var(--line);border-radius:20px;overflow:hidden}
.press-media{position:relative;min-height:300px;background:#0a0e16}
.press-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.press-body{padding:38px 40px;display:flex;flex-direction:column;justify-content:center}
.press-outlet{display:inline-flex;align-items:center;gap:9px;margin-bottom:18px;font-weight:800;letter-spacing:-.01em}
.press-outlet .kmark{width:26px;height:26px;border-radius:7px;background:#1b61c9;color:#fff;display:grid;place-items:center;font-weight:900;font-size:.9rem}
.press-body h3{font-size:clamp(1.2rem,2.3vw,1.6rem);margin:0 0 14px;line-height:1.3;letter-spacing:-.02em}
.press-sub{color:var(--txt-dim);font-size:.95rem;margin:0 0 18px}
.press-meta{color:var(--txt-mute);font-size:.84rem;margin-bottom:22px}
.press-quote{border-left:2px solid var(--p2);padding-left:14px;color:var(--txt-dim);font-size:.93rem;margin-bottom:24px}
.press-links{display:flex;gap:10px;flex-wrap:wrap}
.press-links a{font-size:.88rem}
@media(max-width:820px){.press-card{grid-template-columns:1fr}.press-media{min-height:220px}}

/* ===== GALLERY ===== */
.gal-tabs{margin-bottom:24px}
.masonry{columns:3;column-gap:14px}
.masonry img{width:100%;border-radius:12px;margin-bottom:14px;border:1px solid var(--line);cursor:pointer;transition:.25s;background:var(--panel)}
.masonry img:hover{transform:scale(1.015);border-color:var(--p2);filter:brightness(1.07)}
@media(max-width:820px){.masonry{columns:2}}
@media(max-width:520px){.masonry{columns:1}}
.galgroup{display:none}.galgroup.show{display:block;animation:fade .4s ease}

/* ===== G-STAR FUTURE ===== */
.future-hero{background:linear-gradient(135deg,rgba(45,212,191,.08),var(--panel));border:1px solid rgba(45,212,191,.22);
  border-radius:22px;padding:46px;display:grid;grid-template-columns:1.1fr 1fr;gap:40px;align-items:center}
.future-hero .k{font-size:.76rem;letter-spacing:.16em;font-weight:800;color:var(--p2);text-transform:uppercase}
.future-hero h3{font-size:clamp(1.7rem,3.6vw,2.4rem);margin:10px 0 14px;font-weight:900;letter-spacing:-.02em}
.future-hero p{color:var(--txt-dim);margin:0 0 22px}
.future-meta{display:flex;gap:26px;flex-wrap:wrap}
.future-meta div .t{font-size:.76rem;color:var(--txt-mute);font-weight:600}
.future-meta div .v{font-size:1.1rem;font-weight:800;margin-top:2px}
.future-visual{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.future-visual img{border-radius:14px;border:1px solid var(--line);height:100%;object-fit:cover;aspect-ratio:1/1;cursor:pointer;transition:.25s}
.future-visual img:hover{border-color:var(--p2);filter:brightness(1.07)}
@media(max-width:820px){.future-hero{grid-template-columns:1fr;padding:30px}}

/* ===== LIGHTBOX ===== */
.lb{position:fixed;inset:0;z-index:100;background:rgba(5,8,14,.93);backdrop-filter:blur(6px);
  display:none;align-items:center;justify-content:center;padding:30px}
.lb.open{display:flex}
.lb img{max-width:92vw;max-height:86vh;border-radius:12px;box-shadow:var(--shadow)}
.lb .close{position:absolute;top:22px;right:26px;font-size:2.2rem;color:#fff;cursor:pointer;line-height:1;opacity:.8}
.lb .close:hover{opacity:1}
.lb .nav-btn{position:absolute;top:50%;transform:translateY(-50%);font-size:2.6rem;color:#fff;cursor:pointer;opacity:.55;padding:10px;user-select:none}
.lb .nav-btn:hover{opacity:1}
.lb .prev{left:14px}.lb .next{right:14px}

/* ===== FOOTER ===== */
footer{border-top:1px solid var(--line);background:var(--bg-2);padding:54px 0 30px;margin-top:30px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px}
.foot-grid h5{font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;color:var(--txt-mute);margin:0 0 14px}
.foot-grid a,.foot-grid p{color:var(--txt-dim);font-size:.92rem;margin:6px 0;transition:.2s}
.foot-grid a:hover{color:var(--p2)}
.foot-bottom{margin-top:38px;padding-top:22px;border-top:1px solid var(--line);color:var(--txt-mute);font-size:.83rem;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
@media(max-width:720px){.foot-grid{grid-template-columns:1fr}}

/* reveal */
.reveal{opacity:0;transform:translateY(22px);transition:.7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}