:root {
  --bg: #f4f6fb;
  --surface: #ffffff;
  --surface2: #eef1f8;
  --border: #dde2ee;
  --accent: #4f7cff;
  --accent2: #00a884;
  --accent3: #e85a3a;
  --accent4: #c98f00;
  --text: #1a1f2b;
  --text2: #5b6478;
  --text3: #7b8497;
  --success: #16a34a;
  --warning: #b45309;
  --danger: #dc2626;
  --radius: 8px;
  --radius-lg: 14px;
}

:root[data-theme="dark"] {
  --bg: #0d0f14;
  --surface: #151820;
  --surface2: #1c2030;
  --border: #2a2f3f;
  --accent: #4f7cff;
  --accent2: #00e5b0;
  --accent3: #ff6b4a;
  --accent4: #ffd166;
  --text: #e8ecf5;
  --text2: #7d88a4;
  --text3: #4a5268;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  transition: background 0.15s, color 0.15s;
  display: flex;
  min-height: 100vh;
  font-size: 13px;
}

#sidebar {
  width: 230px;
  min-width: 230px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.sidebar-logo { padding: 20px 18px 16px; border-bottom: 1px solid var(--border); }
.sidebar-logo h1 { font-family: 'Syne', sans-serif; font-size: 17px; font-weight: 800; letter-spacing: -0.5px; color: var(--text); line-height: 1.2; }
.sidebar-logo span { font-size: 10px; color: var(--text3); font-family: 'DM Mono', monospace; letter-spacing: 1px; text-transform: uppercase; }

.sidebar-section { padding: 14px 10px 6px; font-family: 'DM Mono', monospace; font-size: 9px; color: var(--text3); letter-spacing: 1.5px; text-transform: uppercase; }

.nav-item {
  display: flex; align-items: center; gap: 9px;
  padding: 8px 14px; margin: 1px 6px; border-radius: var(--radius);
  cursor: pointer; color: var(--text2); transition: all 0.15s;
  font-size: 12.5px; font-weight: 500; border: 1px solid transparent;
  text-decoration: none;
}
.nav-item:hover { background: var(--surface2); color: var(--text); }
.nav-item.active { background: rgba(79,124,255,0.12); color: var(--accent); border-color: rgba(79,124,255,0.2); }
.nav-item .icon { width: 18px; height: 18px; display: flex; align-items: center; justify-content: center; font-size: 13px; flex-shrink: 0; }

.theme-switch { margin-top: auto; padding: 10px 14px; display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.theme-switch-label { font-size: 10px; color: var(--text3); font-family: 'DM Mono', monospace; }
.theme-switch-toggle { position: relative; display: inline-block; cursor: pointer; }
.theme-switch-toggle input { position: absolute; opacity: 0; width: 0; height: 0; }
.theme-switch-track { position: relative; display: block; width: 36px; height: 20px; border-radius: 10px; background: var(--surface2); border: 1px solid var(--border); transition: background 0.15s; }
.theme-switch-thumb { position: absolute; top: 2px; left: 2px; width: 14px; height: 14px; border-radius: 50%; background: var(--text3); transition: transform 0.15s, background 0.15s; }
.theme-switch-toggle input:checked ~ .theme-switch-track { background: var(--accent); }
.theme-switch-toggle input:checked ~ .theme-switch-track .theme-switch-thumb { transform: translateX(16px); background: #fff; }

.sidebar-footer { padding: 12px; border-top: 1px solid var(--border); display: flex; align-items: center; gap: 9px; }
.avatar { width: 30px; height: 30px; background: linear-gradient(135deg, var(--accent), var(--accent2)); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 11px; font-weight: 700; color: #fff; flex-shrink: 0; }
.user-info { overflow: hidden; }
.user-name { font-size: 12px; font-weight: 600; color: var(--text); }
.user-role { font-size: 10px; color: var(--text3); font-family: 'DM Mono', monospace; }

#main { flex: 1; display: flex; flex-direction: column; min-width: 0; }

#topbar { height: 54px; background: var(--surface); border-bottom: 1px solid var(--border); display: flex; align-items: center; padding: 0 22px; gap: 12px; flex-shrink: 0; }
.topbar-title { font-family: 'Syne', sans-serif; font-size: 15px; font-weight: 700; color: var(--text); }
.topbar-sub { font-size: 11px; color: var(--text3); font-family: 'DM Mono', monospace; }
.topbar-sep { flex: 1; }
.topbar-actions { display: flex; gap: 8px; align-items: center; }

.btn { display: inline-flex; align-items: center; gap: 5px; padding: 6px 12px; border-radius: var(--radius); font-size: 12px; font-weight: 500; cursor: pointer; border: 1px solid transparent; transition: all 0.15s; font-family: 'DM Sans', sans-serif; text-decoration: none; }
.btn-primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: #3d6aed; }
.btn-secondary { background: var(--surface2); color: var(--text2); border-color: var(--border); }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }
.btn-ghost { background: transparent; color: var(--text2); border-color: transparent; }
.btn-danger { background: rgba(239,68,68,0.12); color: var(--danger); border-color: rgba(239,68,68,0.2); }

#content { flex: 1; overflow-y: auto; padding: 22px; background: var(--bg); }

.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin-bottom: 20px; }
.kpi-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 16px 18px; position: relative; overflow: hidden; }
.kpi-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; }
.kpi-card.blue::before { background: var(--accent); }
.kpi-card.green::before { background: var(--accent2); }
.kpi-card.orange::before { background: var(--accent3); }
.kpi-card.yellow::before { background: var(--accent4); }
.kpi-label { font-size: 10px; color: var(--text3); font-family: 'DM Mono', monospace; text-transform: uppercase; letter-spacing: 0.8px; margin-bottom: 6px; }
.kpi-value { font-family: 'Syne', sans-serif; font-size: 26px; font-weight: 700; color: var(--text); letter-spacing: -1px; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 16px; }
.card-header { padding: 14px 18px 10px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.card-title { font-size: 12px; font-weight: 600; color: var(--text); }
.card-body { padding: 14px 18px; }

.data-table { width: 100%; border-collapse: collapse; }
.data-table th { font-family: 'DM Mono', monospace; font-size: 9px; color: var(--text3); text-transform: uppercase; letter-spacing: 1px; padding: 8px 12px; text-align: left; border-bottom: 1px solid var(--border); }
.data-table td { padding: 10px 12px; border-bottom: 1px solid rgba(42,47,63,0.5); font-size: 12.5px; color: var(--text2); }
.data-table tr:hover td { background: var(--surface2); color: var(--text); }
.data-table tr:last-child td { border-bottom: none; }

.badge { display: inline-flex; align-items: center; padding: 2px 8px; border-radius: 20px; font-size: 10px; font-weight: 500; font-family: 'DM Mono', monospace; }
.badge-green { background: rgba(34,197,94,0.15); color: var(--success); }
.badge-gray { background: rgba(125,136,164,0.15); color: var(--text2); }
.badge-yellow { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge-red { background: rgba(239,68,68,0.15); color: var(--danger); }
.badge-blue { background: rgba(79,124,255,0.15); color: var(--accent); }
.font-mono { font-family: 'DM Mono', monospace; }
.text-muted { color: var(--text3); font-family: 'DM Mono', monospace; font-size: 11px; }
.fw-600 { font-weight: 600; }
.flex { display: flex; }
.gap-2 { gap: 8px; }
.form-grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-group.full { grid-column: 1 / -1; }
.form-label { font-size: 10px; font-family: 'DM Mono', monospace; color: var(--text3); text-transform: uppercase; letter-spacing: 0.8px; }
.form-control { background: var(--surface2); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); padding: 8px 10px; font-size: 12.5px; font-family: 'DM Sans', sans-serif; outline: none; }
.form-control:focus { border-color: var(--accent); }

.alert { padding: 10px 14px; border-radius: var(--radius); font-size: 12.5px; margin-bottom: 14px; }
.alert-danger { background: rgba(239,68,68,0.12); color: var(--danger); border: 1px solid rgba(239,68,68,0.2); }

/* ── LOGIN ── */
.login-page { display: flex; align-items: center; justify-content: center; width: 100%; min-height: 100vh; background: var(--bg); }
.login-box { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 36px 34px; width: 100%; max-width: 360px; }
.login-title { font-family: 'Syne', sans-serif; font-size: 20px; font-weight: 800; color: var(--text); margin-bottom: 4px; }
.login-sub { font-size: 11px; color: var(--text3); font-family: 'DM Mono', monospace; margin-bottom: 22px; }
.login-box .form-group { margin-bottom: 14px; }
.login-box .btn-primary { width: 100%; justify-content: center; padding: 9px 12px; margin-top: 6px; }