:root{--blue:#0d6efd;--nav:#172033;--bg:#f4f7fb;--text:#1f2937;--muted:#6b7280}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,Segoe UI,Arial,sans-serif}
.app-shell{display:flex;min-height:100vh}
.sidebar{width:270px;background:var(--nav);color:#fff;padding:22px 16px;position:sticky;top:0;height:100vh;overflow:auto}
.brand{display:flex;align-items:center;gap:12px;font-size:1.35rem;font-weight:700;margin-bottom:28px}
.brand i{font-size:1.7rem;color:#69a7ff}
.nav-section{color:#91a1bc;text-transform:uppercase;font-size:.72rem;font-weight:700;margin:18px 10px 6px}
.sidebar .nav-link{color:#d7deea;border-radius:8px;padding:10px 12px;display:flex;align-items:center;gap:10px}
.sidebar .nav-link:hover{background:#22304a;color:#fff}
.main{flex:1;min-width:0}
.topbar{height:78px;background:#fff;border-bottom:1px solid #e5e7eb;display:flex;align-items:center;justify-content:space-between;padding:0 28px}
.userbox{display:flex;align-items:center;gap:14px;color:var(--muted)}
.content{padding:28px}
.panel{background:#fff;border:1px solid #e5e7eb;border-radius:8px;padding:22px;box-shadow:0 8px 24px rgba(15,23,42,.06)}
.panel-title,.actions-row{display:flex;justify-content:space-between;align-items:center;gap:16px}
.panel-title h2{font-size:1.05rem;margin:0}
.dashboard-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.metric-card{background:#fff;border:1px solid #e5e7eb;border-radius:8px;padding:20px;display:flex;gap:16px;align-items:center;box-shadow:0 8px 24px rgba(15,23,42,.06)}
.metric-card i{font-size:2rem;color:var(--blue)}
.metric-card span{display:block;font-size:1.8rem;font-weight:750}
.metric-card small{color:var(--muted)}
.quick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.quick-btn{border:1px solid #dbe3ef;border-radius:8px;padding:18px;color:var(--text);text-decoration:none;display:flex;align-items:center;gap:12px;font-weight:650;background:#f9fbff}
.quick-btn i{font-size:1.4rem;color:var(--blue)}
.quick-btn:hover{border-color:var(--blue);background:#eef6ff}
.notice{border-left:4px solid var(--blue);background:#f7faff;border-radius:6px;padding:12px}
.notice p{margin:4px 0 0;color:var(--muted)}
.form-panel{max-width:980px}
.login-page{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#eef5ff,#f8fafc)}
.login-panel{width:min(440px,92vw);background:#fff;border:1px solid #e5e7eb;border-radius:8px;padding:32px;box-shadow:0 18px 50px rgba(15,23,42,.12)}
.login-brand{display:flex;gap:16px;align-items:center;margin-bottom:24px}
.login-brand i{font-size:2.6rem;color:var(--blue)}
.login-brand h1{margin:0;font-size:1.7rem;font-weight:800}
.login-brand p{margin:2px 0 0;color:var(--muted)}
.sql-box{background:#111827;color:#e5e7eb;border-radius:8px;padding:14px;white-space:pre-wrap}
.progress{min-width:120px;height:22px}
@media (max-width: 980px){.app-shell{display:block}.sidebar{width:100%;height:auto;position:relative}.dashboard-grid,.quick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.topbar{height:auto;padding:18px;gap:14px;align-items:flex-start}.content{padding:18px}}
@media (max-width: 620px){.dashboard-grid,.quick-grid{grid-template-columns:1fr}.actions-row{display:block}.actions-row .btn{margin-top:12px}.userbox{display:block}.sidebar{padding:16px}}