:root{--bg: #07090f;--panel: #101521;--panel-soft: #161d2a;--line: #293243;--text: #e8edf8;--muted: #94a3bc;--accent: #28d2ff;--accent-2: #61ffad;--danger: #ff6b7a}*{box-sizing:border-box}body{margin:0;font-family:IBM Plex Sans,Segoe UI,sans-serif;background:radial-gradient(circle at 0% 0%,#132235 0%,var(--bg) 45%),var(--bg);color:var(--text)}a{color:inherit;text-decoration:none}.layout{display:grid;grid-template-columns:260px 1fr;min-height:100vh}.sidebar{border-right:1px solid var(--line);padding:24px;background:linear-gradient(180deg,#0f1523,#090d14);display:flex;flex-direction:column;gap:20px}.brand{font-size:22px;font-weight:700;letter-spacing:.02em}.nav{display:flex;flex-direction:column;gap:8px}.nav a{padding:10px 12px;border-radius:10px;color:var(--muted);transition:.2s ease}.nav a:hover{background:#182033;color:var(--text)}.sidebar-footer{margin-top:auto;display:grid;gap:12px}.admin-email{font-size:12px;color:var(--muted)}.main-content{padding:28px}.page-title{margin:0 0 16px;font-size:28px}.card{border:1px solid var(--line);border-radius:16px;background:linear-gradient(170deg,var(--panel-soft),var(--panel));padding:16px}.metrics-grid{display:grid;gap:12px;grid-template-columns:repeat(4,minmax(0,1fr))}.metric-card span{display:block;color:var(--muted);margin-bottom:10px}.metric-card strong{font-size:26px}.chart-card{margin-top:16px}.split{display:grid;gap:16px;grid-template-columns:minmax(280px,360px) 1fr}.form-card,.list-card{display:grid;gap:10px}label{display:grid;gap:6px;font-size:13px;color:var(--muted)}input,select,textarea,button{border-radius:10px;border:1px solid var(--line);padding:10px 12px;background:#0b1019;color:var(--text);font:inherit}button{background:linear-gradient(120deg,#0da7d6,#1781d5);border:none;cursor:pointer;font-weight:600}button.ghost{background:#151d2b;border:1px solid var(--line)}button:disabled{opacity:.6;cursor:not-allowed}table{width:100%;border-collapse:collapse;font-size:13px}th,td{padding:10px;border-bottom:1px solid var(--line);text-align:left}th{color:var(--muted)}.error{color:var(--danger)}.success{color:var(--accent-2);font-size:13px;word-break:break-all}.login-wrap{min-height:100vh;display:grid;place-items:center;padding:24px}.login-card{width:100%;max-width:420px}.muted{color:var(--muted)}.toolbar{display:flex;gap:8px;justify-content:flex-end}@media(max-width:1100px){.layout{grid-template-columns:1fr}.sidebar{border-right:none;border-bottom:1px solid var(--line)}.metrics-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.split{grid-template-columns:1fr}}