*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:#0a0e1a;color:#e8ecf5;-webkit-font-smoothing:antialiased;line-height:1.5;min-height:100vh}
body::before{content:"";position:fixed;top:0;left:0;right:0;bottom:0;z-index:-1;background:radial-gradient(600px 400px at 15% 0%,rgba(99,102,241,.18),transparent 60%),radial-gradient(700px 450px at 90% 10%,rgba(139,92,246,.14),transparent 60%),radial-gradient(500px 500px at 50% 100%,rgba(34,211,238,.08),transparent 60%),#0a0e1a}
a{color:#a5b4fc;text-decoration:none}

/* ===== TOP BAR ===== */
.top{position:sticky;top:0;z-index:20;background:rgba(10,14,26,.85);border-bottom:1px solid rgba(255,255,255,.08)}
.top-inner{max-width:1200px;margin:0 auto;padding:14px 32px;display:flex;align-items:center;justify-content:space-between}
.logo{font-size:22px;font-weight:800;color:#fff;letter-spacing:-.03em}
.logo b{background:linear-gradient(135deg,#818cf8,#c084fc);-webkit-background-clip:text;background-clip:text;color:transparent}
.top nav{display:flex;align-items:center}
.top nav a{font-size:13px;color:#9aa3b8;font-weight:600;margin-right:20px;transition:color .15s}
.top nav a:hover{color:#fff}
.top nav a.nav-host{color:#a5b4fc;font-weight:700}
.top nav a.nav-host:hover{color:#fff}
.host-tabs{display:inline-flex;margin-bottom:22px}
.nav-dl{background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;border:none;padding:10px 24px;border-radius:999px;font-size:13px;font-weight:700;font-family:inherit;cursor:pointer;box-shadow:0 4px 20px rgba(99,102,241,.4);transition:transform .15s,box-shadow .15s}
.nav-dl:hover{transform:translateY(-1px);box-shadow:0 8px 28px rgba(99,102,241,.5)}

/* ===== PAGE HEAD ===== */
.page-head{max-width:1200px;margin:0 auto;padding:36px 32px 26px;text-align:center}
.page-head h1{font-size:38px;font-weight:800;letter-spacing:-.03em;margin-bottom:10px;background:linear-gradient(180deg,#fff,#a5b4fc);-webkit-background-clip:text;background-clip:text;color:transparent}
.page-head p{color:#9aa3b8;font-size:15px;max-width:560px;margin:0 auto}

/* ===== LAYOUT ===== */
.layout{max-width:1200px;margin:0 auto;padding:0 32px 56px;display:flex;align-items:flex-start}
.form-panel{flex:1 1 52%;min-width:0;margin-right:24px;counter-reset:step}
.preview-panel{flex:1 1 48%;min-width:0}
@media(max-width:960px){
  .layout{flex-direction:column;padding:0 20px 40px}
  .form-panel{margin-right:0;margin-bottom:24px;width:100%}
  .preview-panel{width:100%}
  .page-head h1{font-size:28px}
}
.panel{background:rgba(18,23,42,.9);border:1px solid rgba(255,255,255,.08);border-radius:22px;padding:30px;box-shadow:0 20px 60px rgba(0,0,0,.4)}

/* ===== BLOCKS ===== */
.block{margin-bottom:32px;border:none;min-width:0;padding:0}
.block:last-child{margin-bottom:0}
.block legend,.fields-title{font-weight:700;font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:#8b93a9;margin-bottom:14px;display:flex;align-items:center;padding:0}
.block legend::before{counter-increment:step;content:counter(step);display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%;background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;font-size:11px;margin-right:9px;flex-shrink:0}
.muted{font-weight:500;text-transform:none;letter-spacing:0;color:#5b6376}

/* ===== TEMPLATES ===== */
.templates{display:flex;flex-wrap:wrap;margin:-6px}
.tmpl{position:relative;flex:1 1 30%;min-width:120px;margin:6px;border:2px solid rgba(255,255,255,.09);border-radius:16px;padding:12px 10px 14px;cursor:pointer;text-align:center;background:rgba(255,255,255,.02);transition:border-color .15s,background .15s,transform .15s}
.tmpl:hover{border-color:rgba(129,140,248,.5);transform:translateY(-2px)}
.tmpl.selected{border-color:#818cf8;background:rgba(99,102,241,.12);box-shadow:0 0 0 3px rgba(99,102,241,.2),0 8px 24px rgba(99,102,241,.25)}
.tmpl::before{content:"";display:block;height:44px;border-radius:10px;margin-bottom:10px}
.tmpl[data-template="minimal"]::before{background:linear-gradient(135deg,#f8fafc,#cbd5e1)}
.tmpl[data-template="warm"]::before{background:linear-gradient(135deg,#fdba74,#ea580c)}
.tmpl[data-template="bright"]::before{background:linear-gradient(135deg,#8b5cf6,#1e1b4b)}
.tmpl[data-template="modern"]::before{background:linear-gradient(135deg,#0f172a,#22d3ee)}
.tmpl[data-template="elegant"]::before{background:linear-gradient(135deg,#faf8f5,#b45309)}
.tmpl[data-template="playful"]::before{background:linear-gradient(135deg,#fce7f3,#ec4899)}
.tmpl input{position:absolute;opacity:0;pointer-events:none}
.tmpl-name{font-weight:600;font-size:13px;color:#c3cad9}
.tmpl.selected .tmpl-name{color:#fff}

/* ===== COLOR ===== */
.color-row{display:flex;align-items:center;flex-wrap:wrap}
#f-color{width:32px;height:32px;border:1px solid rgba(255,255,255,.15);border-radius:50%;padding:2px;background:#0d1326;cursor:pointer;margin-right:12px;margin-bottom:4px}
.swatches{display:flex;flex-wrap:wrap}
.dot{width:30px;height:30px;border-radius:50%;border:2px solid rgba(255,255,255,.25);cursor:pointer;margin-right:8px;margin-bottom:4px;transition:transform .12s}
.dot:hover{transform:scale(1.15)}
.dot.active{box-shadow:0 0 0 2px #fff,0 0 0 4px #818cf8}

/* ===== PHOTOS ===== */
.photo-list{display:flex;flex-wrap:wrap;margin-bottom:12px}
.photo-cell{width:82px;margin:0 10px 12px 0}
.photo-item{margin:0}
.photo-cap{width:100%;margin-top:6px;background:#0d1326;border:1px solid rgba(255,255,255,.1);border-radius:8px;color:#c3cad9;font-size:11px;font-family:inherit;padding:5px 7px}
.photo-cap::placeholder{color:#525b73}
.photo-cap:focus{outline:none;border-color:#818cf8}
.photo-badge{display:inline-block;margin-top:6px;font-size:10px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:#67e8f9;background:rgba(34,211,238,.1);border:1px solid rgba(34,211,238,.35);border-radius:999px;padding:3px 10px}
.photo-error{margin:0 0 12px;padding:12px 16px;background:rgba(220,38,38,.12);border:1px solid rgba(248,113,113,.5);border-radius:12px;color:#fca5a5;font-size:13px;font-weight:600}
.counter{display:block;text-align:right;font-size:11px;color:#5b6376;margin-top:4px}
.counter.low{color:#f87171}
.photo-item{position:relative;width:82px;height:82px;border-radius:14px;overflow:hidden;border:1px solid rgba(255,255,255,.12);box-shadow:0 6px 18px rgba(0,0,0,.35)}
.photo-item img{width:100%;height:100%;object-fit:cover;display:block}
.photo-item button{position:absolute;top:4px;right:4px;width:22px;height:22px;border:none;border-radius:50%;background:rgba(10,14,26,.75);color:#fff;font-size:13px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .15s}
.photo-item button:hover{background:#dc2626}
.photo-item.dragging{opacity:.35}
.btn-add{display:inline-block;border:2px dashed rgba(129,140,248,.4);background:rgba(99,102,241,.07);color:#a5b4fc;border-radius:14px;padding:13px 22px;font-size:13px;font-weight:600;cursor:pointer;transition:border-color .15s,color .15s,background .15s}
.btn-add:hover{border-color:#818cf8;color:#fff;background:rgba(99,102,241,.15)}
.btn-add-small{padding:9px 18px;font-size:12.5px;border-radius:12px}
.video-row{display:flex;margin-bottom:10px}
.video-row input{flex:1;min-width:0;border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:12px 15px;font-size:14px;font-family:inherit;background:#0d1326;color:#e8ecf5;margin-right:8px}
.video-row input::placeholder{color:#525b73}
.video-row input:focus{outline:none;border-color:#818cf8;box-shadow:0 0 0 3px rgba(99,102,241,.25)}
.video-del{flex-shrink:0;width:42px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.04);color:#9aa3b8;border-radius:12px;font-size:18px;cursor:pointer}
.video-del:hover{color:#fff;border-color:#f87171}
.btn-ghost{margin-top:12px;background:transparent;border:1px solid rgba(129,140,248,.4);color:#a5b4fc;border-radius:999px;padding:9px 20px;font-size:12.5px;font-weight:600;font-family:inherit;cursor:pointer;transition:border-color .15s,color .15s}
.btn-ghost:hover{border-color:#818cf8;color:#fff}
.compare{position:fixed;top:0;left:0;right:0;bottom:0;z-index:50;background:rgba(5,8,16,.85);overflow:auto;padding:32px 20px}
.compare-inner{max-width:1200px;margin:0 auto}
.compare-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.compare-head h2{color:#fff;font-size:20px;letter-spacing:-.02em}
.compare-close{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);color:#fff;width:36px;height:36px;border-radius:50%;font-size:15px;cursor:pointer}
.compare-grid{display:flex;flex-wrap:wrap;margin:-10px}
.compare-cell{flex:1 1 30%;min-width:280px;margin:10px;background:#0d1326;border:1px solid rgba(255,255,255,.1);border-radius:16px;overflow:hidden}
.compare-cell h3{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:#8b93a9;padding:12px 16px;border-bottom:1px solid rgba(255,255,255,.07)}
.compare-cell iframe{width:100%;height:480px;border:none;display:block;background:#fff}

/* ===== FIELDS ===== */
.field{margin-bottom:16px}
.field:last-child{margin-bottom:0}
.field span{display:block;font-size:12px;font-weight:600;color:#9aa3b8;margin-bottom:6px}
.field input,.field textarea{width:100%;border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:12px 15px;font-size:14px;font-family:inherit;background:#0d1326;color:#e8ecf5;transition:border-color .15s,box-shadow .15s;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#525b73}
.field input:focus,.field textarea:focus{outline:none;border-color:#818cf8;box-shadow:0 0 0 3px rgba(99,102,241,.25)}
.btn-grid{display:flex;flex-wrap:wrap;margin-right:-12px}
.btn-grid .field{flex:1 1 44%;min-width:200px;margin-right:12px}

/* ===== ACTIONS ===== */
.actions{display:flex;align-items:center;flex-wrap:wrap;padding-top:6px}
.btn-primary{background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;border:none;border-radius:999px;padding:14px 30px;font-size:14px;font-weight:700;cursor:pointer;font-family:inherit;margin-right:14px;box-shadow:0 8px 28px rgba(99,102,241,.4);transition:transform .15s,box-shadow .15s}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 34px rgba(99,102,241,.55)}
.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}
.status{font-size:13px;color:#8b93a9}
.status.err{color:#f87171}
.status.ok{color:#34d399}

/* ===== PREVIEW ===== */
.preview-panel{position:sticky;top:76px}
@media(max-width:960px){.preview-panel{position:static}}
.preview-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;padding:0 4px}
.preview-head h2{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:#8b93a9}
.preview-open{font-size:12px;font-weight:600;color:#a5b4fc}
.pv-switch{display:flex;background:#0d1326;border:1px solid rgba(255,255,255,.1);border-radius:999px;padding:3px}
.pv-btn{border:none;background:transparent;color:#8b93a9;font-size:12px;font-weight:600;font-family:inherit;padding:6px 14px;border-radius:999px;cursor:pointer}
.pv-btn.active{background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff}
.preview-wrap.narrow{background:#0d1326}
.preview-wrap.narrow #preview{max-width:390px;margin:0 auto;border-left:1px solid rgba(255,255,255,.1);border-right:1px solid rgba(255,255,255,.1)}
.device{border:1px solid rgba(255,255,255,.1);border-radius:20px;overflow:hidden;background:#0d1326;box-shadow:0 20px 60px rgba(0,0,0,.45)}
.device-bar{display:flex;padding:11px 15px;background:#131a30;border-bottom:1px solid rgba(255,255,255,.07)}
.device-bar span{width:9px;height:9px;border-radius:50%;background:#3b4358;margin-right:6px}
.device-bar span:first-child{background:#f87171}
.device-bar span:nth-child(2){background:#fbbf24}
.device-bar span:last-child{background:#34d399}
.preview-wrap{position:relative;background:#fff}
#preview{width:100%;height:720px;border:none;display:block;background:#fff}
.preview-hint{position:absolute;top:0;left:0;right:0;bottom:0;display:flex;align-items:center;justify-content:center;text-align:center;color:#6b7280;font-size:14px;padding:32px;background:linear-gradient(180deg,#f4f5fa,#e8ecf5)}

/* ===== FOOTER ===== */
.footer{border-top:1px solid rgba(255,255,255,.07);padding:26px 32px;text-align:center}
.footer p{font-size:12.5px;color:#5b6376}

/* ===== HOW-TO-HOST ===== */
.steps{max-width:680px;margin:0 auto;padding:44px 32px 64px}
.steps h1{font-size:30px;letter-spacing:-.02em;margin-bottom:10px;color:#fff;background:linear-gradient(180deg,#fff,#a5b4fc);-webkit-background-clip:text;background-clip:text;color:transparent}
.steps .sub{margin-bottom:26px;color:#9aa3b8;font-size:14px}
.step{background:rgba(18,23,42,.9);border:1px solid rgba(255,255,255,.08);border-radius:16px;padding:20px 22px;margin-bottom:12px;box-shadow:0 12px 36px rgba(0,0,0,.35);transition:transform .15s,border-color .15s}
.step:hover{transform:translateY(-2px);border-color:rgba(129,140,248,.35)}
.step h2{font-size:14px;margin-bottom:6px;display:flex;align-items:center;color:#fff}
.step h2 b{background:linear-gradient(135deg,#6366f1,#8b5cf6);color:#fff;width:23px;height:23px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:11px;margin-right:10px;flex-shrink:0}
.step p{font-size:13.5px;color:#9aa3b8;line-height:1.65}
.step ol{margin:8px 0 0 18px;font-size:13.5px;color:#9aa3b8;line-height:1.75}
.step code{background:#0d1326;border:1px solid rgba(255,255,255,.1);border-radius:5px;padding:2px 6px;font-size:12px;color:#c7d2fe}
.note{background:rgba(251,191,36,.08);border:1px solid rgba(251,191,36,.3);border-radius:16px;padding:16px 20px;font-size:13.5px;color:#fcd34d;margin-top:16px}