:root{
  --bg:#f5f4f8; --panel:#ffffff; --ink:#1c1726; --mut:#6d6880; --line:#e8e6ee;
  --accent:#6d28d9; --accent-2:#7c3aed; --accent-ink:#fff; --accent-soft:rgba(109,40,217,.10);
  --brand-1:#1c1030; --brand-2:#3b1d6e; --brand-3:#6010a0;
  --danger:#d9415a; --radius:14px;
  --shadow:0 1px 2px rgba(28,23,38,.06),0 8px 24px rgba(28,23,38,.06);
  --font:'Pretendard',-apple-system,BlinkMacSystemFont,'Apple SD Gothic Neo','Segoe UI',Roboto,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{background:var(--bg);color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased;font-size:14px;line-height:1.55}
a{color:inherit;text-decoration:none}

/* ============ LOGIN ============ */
.login-body{height:100vh;overflow:hidden}
.login-split{display:grid;grid-template-columns:1.05fr .95fr;height:100vh}
.brand-pane{position:relative;background:linear-gradient(150deg,var(--brand-1),var(--brand-2) 52%,var(--brand-3));color:#fff;overflow:hidden}
.brand-pane:before,.brand-pane:after{content:'';position:absolute;border-radius:50%;filter:blur(12px);opacity:.4}
.brand-pane:before{width:540px;height:540px;background:radial-gradient(circle,#9b5cff,transparent 70%);top:-170px;right:-130px}
.brand-pane:after{width:430px;height:430px;background:radial-gradient(circle,#c77bff,transparent 70%);bottom:-150px;left:-110px}
.brand-inner{position:relative;z-index:1;height:100%;display:flex;flex-direction:column;justify-content:center;padding:8vh 6vw;max-width:560px}
.brand-mark{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:.2px;font-size:20px;opacity:.97;margin-bottom:auto}
.brand-mark img{width:34px;height:34px;filter:brightness(0) invert(1)}
.brand-pane h1{font-size:38px;line-height:1.22;font-weight:800;margin:0 0 18px;letter-spacing:-.6px}
.brand-desc{color:#d4c9ee;font-size:15px;margin:0 0 30px}
.brand-feats{list-style:none;padding:0;margin:0 0 auto;display:grid;gap:12px}
.brand-feats li{position:relative;padding-left:26px;color:#e3daf6;font-size:14.5px}
.brand-feats li:before{content:'';position:absolute;left:0;top:7px;width:14px;height:14px;border-radius:50%;background:rgba(255,255,255,.14);box-shadow:inset 0 0 0 4px var(--accent-2)}
.brand-foot{margin-top:auto;padding-top:40px;color:#9d8fc4;font-size:12.5px}

.form-pane{display:flex;align-items:center;justify-content:center;background:var(--panel);padding:24px}
.form-card{width:100%;max-width:384px}
.form-logo{margin-bottom:22px}
.form-logo img{width:48px;height:48px}
.form-head h2{font-size:26px;font-weight:800;margin:0 0 6px;letter-spacing:-.4px}
.form-head p{color:var(--mut);margin:0 0 26px}
.form-card label{display:block;font-size:13px;color:#494357;font-weight:600;margin-bottom:16px}
.form-card input{display:block;width:100%;margin-top:7px;padding:13px 14px;border:1px solid var(--line);border-radius:10px;background:#fbfafd;font-size:14.5px;transition:.15s}
.form-card input:focus{outline:none;border-color:var(--accent);background:#fff;box-shadow:0 0 0 4px var(--accent-soft)}
.btn-primary{width:100%;margin-top:8px;padding:13px;border:0;border-radius:10px;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;font-size:15px;font-weight:700;cursor:pointer;transition:.15s;box-shadow:0 6px 16px rgba(109,40,217,.3)}
.btn-primary:hover{filter:brightness(1.07);transform:translateY(-1px)}
.alert{background:#fdecef;color:var(--danger);border:1px solid #f6c9d2;padding:11px 13px;border-radius:10px;font-size:13px;margin-bottom:18px}
.form-foot{margin-top:28px;text-align:center;color:#a8a2b6;font-size:12px}

/* ============ APP SHELL ============ */
.app{display:grid;grid-template-columns:248px 1fr;grid-template-rows:60px 1fr;grid-template-areas:"logo top" "side main";min-height:100vh}
.topbar{grid-area:top;display:flex;align-items:center;gap:18px;background:var(--panel);border-bottom:1px solid var(--line);padding:0 22px;position:sticky;top:0;z-index:20}
.logo{grid-area:logo;position:sticky;top:0;z-index:21;height:60px;display:flex;align-items:center;gap:10px;background:var(--panel);border-bottom:1px solid var(--line);border-right:1px solid var(--line);padding:0 18px;font-weight:800;font-size:17px;letter-spacing:-.3px}
.logo img{width:26px;height:26px}
.logo-text{display:flex;align-items:baseline;gap:6px}
.logo-sub{color:var(--mut);font-weight:600;font-size:12px}
.hamb{display:none;background:none;border:0;font-size:20px;cursor:pointer;color:var(--ink)}
.search{flex:1;max-width:460px}
.search input{width:100%;padding:9px 14px;border:1px solid var(--line);border-radius:10px;background:#f7f6fb;font-size:13.5px}
.search input:focus{outline:none;border-color:var(--accent);background:#fff;box-shadow:0 0 0 4px var(--accent-soft)}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:14px}
.seg{display:flex;background:#efedf5;border-radius:9px;padding:3px}
.seg button{border:0;background:none;padding:6px 13px;border-radius:7px;font-size:13px;font-weight:600;color:var(--mut);cursor:pointer;transition:.15s}
.seg button.on{background:#fff;color:var(--accent);box-shadow:var(--shadow)}
.user{font-size:13px;color:var(--mut);font-weight:600}
.logout{font-size:13px;color:var(--accent);font-weight:600;padding:6px 12px;border:1px solid var(--line);border-radius:9px;transition:.15s}
.logout:hover{background:var(--accent-soft);border-color:#dcd3ee}

.sidebar{grid-area:side;background:var(--panel);border-right:1px solid var(--line);padding:18px 14px;overflow-y:auto;position:sticky;top:60px;height:calc(100vh - 60px)}
.side-stat{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:18px}
.side-stat div{background:#f6f5fb;border:1px solid var(--line);border-radius:11px;padding:10px 6px;text-align:center}
.side-stat b{display:block;font-size:18px;font-weight:800}
.side-stat span{font-size:11px;color:var(--mut)}
.nav-label{font-size:11px;text-transform:uppercase;letter-spacing:.6px;color:#a39db1;font-weight:700;margin:16px 8px 8px}
.nav-item{display:flex;align-items:center;gap:8px;padding:9px 11px;border-radius:10px;color:#403a4f;font-size:13.5px;font-weight:600;cursor:pointer;transition:.12s}
.nav-item .nav-name{flex:1;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.nav-item em{font-style:normal;font-size:11.5px;color:var(--mut);background:#efedf5;border-radius:20px;padding:1px 8px}
.nav-item:hover{background:#f5f3fa}
.nav-item.on{background:linear-gradient(135deg,var(--accent-soft),rgba(124,58,237,.07));color:var(--accent)}
.nav-item.on em{background:var(--accent);color:#fff}
.side-foot{margin-top:18px;padding:12px 8px;color:#aaa3b8;font-size:11.5px;border-top:1px solid var(--line)}

.content{grid-area:main;width:100%;padding:24px 28px 60px}
.board{margin-bottom:40px;scroll-margin-top:74px}
.board-head{display:flex;align-items:center;gap:10px;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.board-head h2{font-size:18px;font-weight:800;margin:0;letter-spacing:-.3px;max-width:70vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.board-head .count{font-size:12px;font-weight:700;color:var(--accent);background:var(--accent-soft);border-radius:20px;padding:2px 10px}
.chip{font-size:11px;font-weight:700;border-radius:20px;padding:2px 10px}
.chip.danger{background:#fdecef;color:var(--danger)}

.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.18s;display:flex;flex-direction:column}
.card:hover{transform:translateY(-3px);box-shadow:0 10px 30px rgba(28,23,38,.13);border-color:#ddd5ec}
.thumb{position:relative;aspect-ratio:1;background:#160e24;cursor:pointer;overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:.3s}
.card:hover .thumb img{transform:scale(1.04)}
.thumb .play{position:absolute;inset:0;margin:auto;width:54px;height:54px;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.5);color:#fff;border-radius:50%;font-size:18px;backdrop-filter:blur(2px)}
.thumb .dim{position:absolute;top:8px;left:8px;background:rgba(16,10,28,.62);color:#e4ddf0;font-size:10.5px;font-weight:600;padding:2px 7px;border-radius:6px}
figcaption{padding:11px 12px 12px}
.pr{margin:0 0 9px;font-size:12.5px;color:#474155;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:36px}
.cap-row{display:flex;align-items:center;justify-content:space-between}
.cap-row .date{font-size:11px;color:#9c95ab}
.cap-row .dl{font-size:11.5px;font-weight:700;color:var(--accent)}
.cap-row .dl:hover{text-decoration:underline}
.empty{text-align:center;color:var(--mut);padding:80px 0;font-size:15px}

.lightbox{position:fixed;inset:0;background:rgba(14,10,22,.88);backdrop-filter:blur(6px);display:none;z-index:60;flex-direction:column;align-items:center;justify-content:center;padding:30px}
.lightbox.show{display:flex}
.lb-close{position:absolute;top:18px;right:22px;width:42px;height:42px;border-radius:50%;border:0;background:rgba(255,255,255,.12);color:#fff;font-size:18px;cursor:pointer}
.lb-close:hover{background:rgba(255,255,255,.22)}
.lb-stage{max-width:92vw;max-height:78vh;display:flex}
.lb-stage img,.lb-stage video{max-width:92vw;max-height:78vh;object-fit:contain;border-radius:8px;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.lb-info{margin-top:16px;max-width:760px;text-align:center;color:#ece8f4}
.lb-info p{margin:0 0 8px;font-size:14px;line-height:1.5;color:#d6cfe6}
.lb-meta{font-size:12.5px;color:#a59cba;display:flex;gap:14px;justify-content:center;align-items:center}
.lb-meta a{color:#c4b5fd;font-weight:700}

@media (max-width:860px){
  .app{grid-template-columns:1fr;grid-template-areas:"top" "main"}
  .logo{display:none}
  .hamb{display:block}
  .sidebar{position:fixed;left:0;top:0;height:100vh;width:264px;z-index:40;transform:translateX(-100%);transition:.22s;box-shadow:0 0 40px rgba(0,0,0,.18)}
  .sidebar.open{transform:none}
  .login-split{grid-template-columns:1fr}
  .brand-pane{display:none}
  .seg{display:none}
  .gen{flex-direction:column}
  .gen-form{max-width:none!important}
}

/* ===== 사이드 1차 내비 ===== */
.side-primary{display:flex;flex-direction:column;gap:4px;margin-bottom:16px}
.pnav{display:flex;align-items:center;gap:9px;padding:11px 12px;border-radius:11px;font-size:14px;font-weight:700;color:#3c3650;transition:.13s}
.pnav .pic{font-size:16px}
.pnav:hover{background:#f4f3fa}
.pnav.on{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;box-shadow:0 6px 16px rgba(109,40,217,.28)}
.page-title{font-size:16px;font-weight:800;letter-spacing:-.3px}

/* ===== 생성 페이지 ===== */
.gen{display:flex;gap:24px;align-items:flex-start}
.gen-form{width:430px;flex:none}
.gen-preview{flex:1;min-height:540px;background:var(--panel);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);display:flex;align-items:center;justify-content:center;padding:24px;position:sticky;top:84px}
.gen-card{background:var(--panel);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:20px}
.gen-model{display:flex;align-items:center;gap:11px;padding:10px 12px;background:#f7f6fb;border:1px solid var(--line);border-radius:12px;margin-bottom:18px}
.gen-model img{width:30px;height:30px;border-radius:8px}
.gen-model b{display:block;font-size:14px}
.gen-model span{font-size:11.5px;color:var(--mut)}
.gen-label{display:block;font-size:12.5px;font-weight:700;color:#494357;margin:16px 0 8px}
.gen-prompt{width:100%;border:1px solid var(--line);border-radius:11px;padding:12px 13px;font-size:14px;font-family:inherit;resize:vertical;background:#fbfafd;line-height:1.5}
.gen-prompt:focus{outline:none;border-color:var(--accent);background:#fff;box-shadow:0 0 0 4px var(--accent-soft)}
.chips{display:flex;flex-wrap:wrap;gap:7px}
.chip-btn{border:1px solid var(--line);background:#fbfafd;color:#54506a;border-radius:9px;padding:7px 13px;font-size:12.5px;font-weight:600;cursor:pointer;transition:.13s}
.chip-btn:hover{border-color:#cfc7e8}
.chip-btn.on{background:var(--accent-soft);border-color:var(--accent);color:var(--accent)}
.gen-toggle{display:flex;align-items:center;gap:11px;margin:20px 0 6px;cursor:pointer;user-select:none}
.gen-toggle input{display:none}
.gen-toggle .tg{width:42px;height:24px;border-radius:20px;background:#d8d4e4;position:relative;flex:none;transition:.18s}
.gen-toggle .tg:after{content:'';position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:#fff;transition:.18s;box-shadow:0 1px 3px rgba(0,0,0,.2)}
.gen-toggle input:checked + .tg{background:linear-gradient(135deg,var(--accent),var(--accent-2))}
.gen-toggle input:checked + .tg:after{transform:translateX(18px)}
.tg-text b{display:block;font-size:13.5px}
.tg-text em{font-style:normal;font-size:11.5px;color:var(--mut)}
.gen-run{margin-top:18px}
.gen-hint{margin:10px 0 0;font-size:12.5px;color:var(--danger);min-height:16px}
.btn-ghost{border:1px solid var(--line);background:#fff;color:#494357;border-radius:10px;padding:11px 14px;font-size:13.5px;font-weight:700;cursor:pointer;transition:.13s}
.btn-ghost:hover{background:#f4f3fa;border-color:#d7d2e6}

.gen-empty{text-align:center;color:var(--mut)}
.gen-empty-ic{font-size:44px;margin-bottom:10px}
.gen-empty h3{font-size:20px;font-weight:800;color:var(--ink);margin:0 0 8px}
.gen-empty p{font-size:13.5px;line-height:1.6;margin:0}
.gen-busy{text-align:center;color:var(--mut)}
.spinner{width:46px;height:46px;border:4px solid var(--line);border-top-color:var(--accent);border-radius:50%;margin:0 auto 16px;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.gen-result{width:100%;max-width:560px;text-align:center}
.gen-img img{max-width:100%;max-height:54vh;border-radius:12px;box-shadow:0 12px 36px rgba(28,23,38,.16)}
.gen-rprompt{font-size:13px;color:#56506a;margin:14px 0 16px;line-height:1.5}
.gen-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.gen-actions .btn-primary{width:auto;margin:0;text-decoration:none;display:inline-flex;align-items:center}