:root{--bg:#f3f6fa;--surface:#ffffff;--line:#d2d9e3;--text:#0a0f1a;--text-muted:#546173;--blue:#0a4fbf;--blue-dark:#083a8c;--black:#060b12;--gray-100:#eef2f7;--danger:#b42318}*{box-sizing:border-box}body{margin:0;color:var(--text);font-family:IBM Plex Sans,Segoe UI,sans-serif;background:radial-gradient(circle at 100% 0,rgba(10,79,191,.14),transparent 40%),linear-gradient(160deg,#f8fbff,#eef3f9)}a{color:var(--blue);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3,p{margin:0}main{padding:24px}.app-shell{min-height:100vh;display:grid;grid-template-columns:260px 1fr}.sidebar{background:linear-gradient(180deg,#0a0f1a,#111a2b);color:#fff;border-right:1px solid #111827;padding:20px 16px}.brand{font-size:18px;font-weight:700;letter-spacing:.2px;margin-bottom:18px}.nav-list{display:flex;flex-direction:column;gap:8px}.nav-list a{color:#c7d2e0;border:1px solid transparent;border-radius:10px;padding:10px 12px;font-size:14px}.nav-list a:hover{color:#fff;background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.18);text-decoration:none}.content-area{padding:0 0 24px}.topbar{height:72px;display:flex;align-items:center;justify-content:space-between;padding:12px 24px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.88);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.auth-main{min-height:100vh;display:grid;place-items:center;padding:24px}.auth-card{width:min(100%,460px);background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:22px;display:flex;flex-direction:column;gap:10px;box-shadow:0 12px 30px rgba(10,15,26,.08)}.header{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;margin-bottom:14px}.badge{background:#e7f0ff;color:var(--blue);border:1px solid #aac5ee;border-radius:999px;font-size:12px;padding:4px 10px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));grid-gap:12px;gap:12px;margin:16px 0}.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px}.metric{font-size:28px;font-weight:700;margin-top:8px;color:var(--black)}.section-title{font-size:18px;margin-bottom:10px}.columns{display:grid;grid-template-columns:2fr 1fr;grid-gap:12px;gap:12px}.table{width:100%;border-collapse:collapse;font-size:14px}.table td,.table th{border-bottom:1px solid var(--line);padding:10px 6px;text-align:left}.table th{color:var(--text-muted);font-weight:600}.invite-box,.result-box,.upload-area{display:flex;flex-direction:column;gap:8px}.field-label{font-size:13px;color:var(--text-muted);margin-top:2px}.text-input,select.text-input{border:1px solid var(--line);border-radius:10px;padding:10px 12px;font-size:14px;width:100%;background:#fff}.text-input:focus,select.text-input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(10,79,191,.14)}.check-label{display:flex;align-items:center;gap:8px;font-size:14px}input[type=file]{border:1px dashed #b9c7dc;background:#f8fbff;border-radius:10px;padding:10px}button{border:0;border-radius:10px;padding:10px 14px;background:var(--blue);color:#fff;font-weight:600;cursor:pointer}button:hover{background:var(--blue-dark)}button:disabled{opacity:.7;cursor:not-allowed}small.error{color:var(--danger)}small.ok{color:#0f7a3b}@media (max-width:960px){.app-shell{grid-template-columns:1fr}.sidebar{border-right:0;border-bottom:1px solid #111827}.columns{grid-template-columns:1fr}}