@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --primary: #1a56db; --primary-dark: #1e40af; --primary-light: #dbeafe;
    --sidebar-bg: #1e293b; --sidebar-hover: #334155;
    --bg: #f1f5f9; --card: #ffffff;
    --text: #1e293b; --text-muted: #64748b;
    --border: #e2e8f0;
    --success: #10b981; --warning: #f59e0b; --danger: #ef4444; --info: #3b82f6;
    --radius: 12px;
    --shadow: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.08);
}

* { margin:0; padding:0; box-sizing:border-box; }
body { font-family:'Inter',sans-serif; background:var(--bg); color:var(--text); font-size:14px; line-height:1.6; }
.container { display:flex; min-height:100vh; }

/* SIDEBAR */
.sidebar { width:260px; background:var(--sidebar-bg); color:#fff; position:fixed; height:100vh; overflow-y:auto; z-index:1000; display:flex; flex-direction:column; box-shadow:2px 0 10px rgba(0,0,0,0.1); }
.sidebar-header { padding:25px 20px; border-bottom:1px solid rgba(255,255,255,0.08); text-align:center; }
.sidebar-header h2 { font-size:20px; font-weight:700; }
.sidebar-header .version { font-size:11px; color:rgba(255,255,255,0.4); margin-top:2px; }
.user-info { font-size:13px; color:#94a3b8; background:rgba(255,255,255,0.06); padding:6px 14px; border-radius:20px; display:inline-block; margin-top:8px; }
.sidebar-nav { flex:1; padding:12px 0; overflow-y:auto; }
.sidebar-menu { list-style:none; padding:0 12px; }
.menu-group { margin-bottom:4px; }
.menu-group-title { font-size:10px; text-transform:uppercase; letter-spacing:1.5px; color:rgba(255,255,255,0.3); padding:16px 12px 8px; font-weight:600; }
.sidebar-menu li { margin:1px 0; }
.sidebar-menu a { color:rgba(255,255,255,0.75); text-decoration:none; padding:10px 14px; display:flex; align-items:center; gap:12px; border-radius:8px; font-size:13.5px; transition:all 0.2s; }
.sidebar-menu a:hover { background:var(--sidebar-hover); color:#fff; }
.sidebar-menu a.active { background:var(--primary); color:#fff; font-weight:600; box-shadow:0 4px 12px rgba(26,86,219,0.3); }
.sidebar-menu a .icon { font-size:17px; width:22px; text-align:center; }
.sidebar-menu a .badge { background:#ef4444; color:#fff; padding:2px 8px; border-radius:12px; font-size:10px; font-weight:600; margin-left:auto; }
.sidebar-footer { padding:16px 12px; border-top:1px solid rgba(255,255,255,0.08); }
.sidebar-footer a { color:#f87171; text-decoration:none; padding:10px 14px; display:flex; align-items:center; gap:12px; border-radius:8px; }
.sidebar-footer a:hover { background:rgba(248,113,113,0.12); }

/* HEADER MOBILE */
.mobile-header { display:none; background:var(--sidebar-bg); color:#fff; padding:14px 18px; position:fixed; top:0; left:0; right:0; z-index:999; }
.menu-toggle { background:none; border:none; color:#fff; font-size:22px; cursor:pointer; }
.sidebar-overlay { display:none; position:fixed; inset:0; background:rgba(0,0,0,0.5); z-index:999; }
.sidebar-overlay.active { display:block; }

/* MAIN */
.main-content { margin-left:260px; flex:1; padding:24px; min-height:100vh; }
.header { background:var(--card); padding:22px 28px; border-radius:var(--radius); margin-bottom:24px; box-shadow:var(--shadow); border:2px solid var(--border); display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:10px; }
.header h1 { font-size:22px; font-weight:700; }
.header small { color:var(--text-muted); font-size:13px; }

/* CARDS */
.stats-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(240px,1fr)); gap:18px; margin-bottom:24px; }
.stat-card { background:var(--card); padding:22px 24px; border-radius:var(--radius); box-shadow:var(--shadow); border:2px solid var(--border); position:relative; overflow:hidden; }
.stat-card::before { content:''; position:absolute; left:0; top:0; bottom:0; width:4px; background:var(--primary); }
.stat-card h3 { color:var(--text-muted); font-size:12px; font-weight:600; text-transform:uppercase; letter-spacing:0.5px; margin-bottom:8px; }
.stat-card .value { font-size:30px; font-weight:700; color:var(--text); }

.info-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(300px,1fr)); gap:18px; }
.info-card { background:var(--card); padding:24px; border-radius:var(--radius); box-shadow:var(--shadow); border:2px solid var(--border); }
.info-card h3 { color:var(--text); font-size:16px; font-weight:600; margin-bottom:16px; padding-bottom:12px; border-bottom:2px solid var(--border); }
.info-row { display:flex; justify-content:space-between; padding:8px 0; border-bottom:1px solid var(--border); font-size:13.5px; }
.info-row:last-child { border-bottom:none; }
.info-label { color:var(--text-muted); }
.info-value { font-weight:600; }

/* BUTTONS */
.btn { display:inline-flex; align-items:center; gap:6px; padding:10px 18px; border:none; border-radius:8px; cursor:pointer; font-size:13.5px; font-weight:500; font-family:inherit; text-decoration:none; transition:all 0.2s; }
.btn:hover { transform:translateY(-1px); box-shadow:var(--shadow-lg); }
.btn-primary { background:var(--primary); color:#fff; }
.btn-success { background:var(--success); color:#fff; }
.btn-danger { background:var(--danger); color:#fff; }
.btn-warning { background:var(--warning); color:#fff; }
.btn-info { background:var(--info); color:#fff; }
.btn-sm { padding:6px 12px; font-size:12px; }
.btn-xs { padding:5px 10px; font-size:11px; border-radius:6px; }
.btn-block { display:flex; width:100%; justify-content:center; }

/* FORMS */
.form-group { margin-bottom:16px; }
.form-group label { display:block; margin-bottom:6px; font-weight:500; font-size:13px; }
.form-control { width:100%; padding:10px 14px; border:2px solid var(--border); border-radius:8px; font-size:14px; font-family:inherit; transition:all 0.2s; }
.form-control:focus { outline:none; border-color:var(--primary); box-shadow:0 0 0 3px var(--primary-light); }

/* ALERTS */
.alert { padding:14px 20px; border-radius:8px; margin-bottom:20px; font-size:13.5px; font-weight:500; }
.alert-success { background:#ecfdf5; color:#065f46; border:2px solid #a7f3d0; }
.alert-error { background:#fef2f2; color:#991b1b; border:2px solid #fecaca; }
.alert-warning { background:#fffbeb; color:#92400e; border:2px solid #fde68a; }
.alert-info { background:#eff6ff; color:#1e40af; border:2px solid #bfdbfe; }

/* TABLES */
.data-table { width:100%; background:var(--card); border-radius:var(--radius); overflow:hidden; box-shadow:var(--shadow); border:2px solid var(--border); border-collapse:collapse; }
.data-table th { background:#f8fafc; padding:12px 16px; text-align:left; font-size:11px; font-weight:600; text-transform:uppercase; letter-spacing:0.5px; color:var(--text-muted); border-bottom:2px solid var(--border); }
.data-table td { padding:12px 16px; border-bottom:2px solid var(--border); font-size:13.5px; }
.data-table tr:last-child td { border-bottom:none; }
.data-table tr:hover td { background:#f8fafc; }

.table-responsive { overflow-x:auto; }

/* STATUS */
.status-badge { padding:4px 12px; border-radius:20px; font-size:11px; font-weight:600; text-transform:uppercase; }
.status-active { background:#d1fae5; color:#065f46; }
.status-inactive { background:#fee2e2; color:#991b1b; }

/* LOGIN */
.login-container { display:flex; justify-content:center; align-items:center; min-height:100vh; background:linear-gradient(135deg,#1e293b 0%,#334155 100%); padding:20px; }
.login-box { background:#fff; padding:48px 40px; border-radius:16px; box-shadow:0 25px 60px rgba(0,0,0,0.3); width:420px; max-width:100%; }
.login-box h2 { text-align:center; margin-bottom:8px; font-size:24px; font-weight:700; }
.login-box .subtitle { text-align:center; color:var(--text-muted); font-size:14px; margin-bottom:32px; }
.login-info { text-align:center; margin-top:24px; color:var(--text-muted); font-size:12px; }

/* RESPONSIVO */
@media (max-width:1024px) { .stats-grid { grid-template-columns:repeat(auto-fit,minmax(200px,1fr)); } }
@media (max-width:768px) {
    .mobile-header { display:flex; align-items:center; gap:10px; }
    .sidebar { transform:translateX(-100%); transition:transform 0.3s; }
    .sidebar.active { transform:translateX(0); }
    .main-content { margin-left:0; margin-top:60px; padding:16px; }
    .header { padding:16px 20px; }
    .header h1 { font-size:18px; }
    .stats-grid { grid-template-columns:1fr 1fr; gap:10px; }
    .stat-card { padding:16px; }
    .stat-card .value { font-size:24px; }
    .login-box { padding:32px 24px; }
}