:root{
  --bg:#f6f7fb; --card:#ffffff; --border:#e6edf3; --text:#0f172a; --muted:#6b7280;
  --brand:#2563eb; --brand-2:#60a5fa;
  --radius:12px; --shadow: 0 8px 30px rgba(2,6,23,.06);
}
*{box-sizing:border-box}
body{margin:0;font-family:Inter, ui-sans-serif, system-ui, -apple-system; background:var(--bg); color:var(--text); -webkit-font-smoothing:antialiased;}
.container{max-width:1100px;margin:0 auto;padding:20px}
.header{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:40}
.header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 20px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--text);text-decoration:none}
.logo{width:40px;height:40px;border-radius:10px;background:linear-gradient(180deg,var(--brand),var(--brand-2));display:grid;place-items:center;color:white;font-weight:800}
.nav{display:flex;gap:14px;align-items:center}
.nav a{color:var(--muted);text-decoration:none;font-weight:600}
.hero{background:linear-gradient(180deg,#fff,#f3f8ff);border:1px solid var(--border);border-radius:16px;padding:28px;box-shadow:var(--shadow);margin-top:18px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:20px}
@media(max-width:900px){.hero-grid{grid-template-columns:1fr}}
.badge{display:inline-flex;gap:.5rem;align-items:center;padding:6px 10px;border-radius:999px;background:#eef2ff;color:#1f4db3;border:1px solid rgba(37,99,235,.12);font-weight:700}
.lead{color:var(--muted);margin-top:8px}
.btn{background:linear-gradient(180deg,var(--brand),var(--brand-2));color:#fff;padding:10px 16px;border-radius:10px;border:none;cursor:pointer;font-weight:700}
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px;box-shadow:var(--shadow)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:18px}
@media(max-width:900px){.grid-3{grid-template-columns:1fr}}
.drop{display:grid;place-items:center;text-align:center;gap:.5rem;border:2px dashed #d6e6ff;border-radius:12px;padding:24px;background:#fff}
.drop.drag{border-color:var(--brand);background:#f0f8ff}
.file-list{display:grid;gap:10px;margin-top:12px}
.file{display:flex;gap:12px;align-items:center;padding:10px;border:1px solid var(--border);border-radius:10px;background:#fff}
.file .meta{flex:1}
.progress{height:8px;background:#eef2f6;border-radius:999px;overflow:hidden}
.progress>span{display:block;height:100%;width:0%;background:linear-gradient(90deg,var(--brand),var(--brand-2));transition:width .2s ease}
.status{font-size:12px;font-weight:700;padding:6px 8px;border-radius:999px}
.status.done{background:#ecfdf5;color:#047857}
.status.error{background:#fff1f2;color:#9f1239}
.footer{margin-top:36px;padding:28px 0;color:var(--muted);border-top:1px solid var(--border);background:transparent}
.small{font-size:0.9rem;color:var(--muted)}
.center{text-align:center}
.preview-area{margin-top:18px}
.preview-area img, .preview-area video, .preview-area audio, .preview-area embed{max-width:100%;border-radius:8px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:700px){.form-row{grid-template-columns:1fr}}
input[type=text], input[type=email], textarea{width:100%;padding:10px;border-radius:8px;border:1px solid var(--border);background:#fff}