/* VanIQ v0.01.026 */
:root {
  --primary: #1a3a5c;
  --primary-dark: #0f2540;
  --primary-light: #e8f0f8;
  --accent: #f0a500;
  --danger: #c0392b;
  --text: #1a1a2e;
  --text-muted: #6b7280;
  --bg: #f4f6f9;
  --card-bg: #ffffff;
  --border: #e2e8f0;
  --sidebar-w: 240px;
  --topbar-h: 56px;
  --radius: 8px;
  --shadow: 0 1px 4px rgba(0,0,0,.08);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Inter', sans-serif; font-size: 14px; color: var(--text); background: var(--bg); }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Layout */
#app-wrapper { display: flex; min-height: 100vh; }
#sidebar { width: var(--sidebar-w); background: var(--primary-dark); color: #fff; display: flex; flex-direction: column; flex-shrink: 0; transition: width .2s; overflow: hidden; }
#sidebar.collapsed { width: 0; }
.sidebar-logo { padding: 18px 20px; font-size: 22px; font-weight: 800; letter-spacing: -0.5px; }
.logo-van { color: #fff; }
.logo-iq  { color: var(--accent); }
.nav-main { list-style: none; padding: 0 0 1rem; }
.nav-main li a { display: block; padding: 9px 20px; color: rgba(255,255,255,.85); transition: background .15s; white-space: nowrap; }
.nav-main li a:hover { background: rgba(255,255,255,.1); color: #fff; text-decoration: none; }
.nav-group-label { padding: 14px 20px 4px; font-size: 10px; text-transform: uppercase; letter-spacing: 1px; color: rgba(255,255,255,.4); }
#main-area { flex: 1; display: flex; flex-direction: column; min-width: 0; }
#topbar { height: var(--topbar-h); background: var(--card-bg); border-bottom: 1px solid var(--border); display: flex; align-items: center; padding: 0 20px; gap: 12px; position: sticky; top: 0; z-index: 100; }
.topbar-left { display: flex; align-items: center; }
.topbar-center { flex: 1; font-weight: 600; font-size: 15px; }
.topbar-right { display: flex; align-items: center; gap: 10px; }
#sidebar-toggle { background: none; border: none; font-size: 20px; cursor: pointer; color: var(--text-muted); }
#content { flex: 1; padding: 24px; }

/* Cards */
.card { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); margin-bottom: 20px; }
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 20px; margin-bottom: 20px; }
.page-header { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }
.page-header h1 { font-size: 20px; font-weight: 700; flex: 1; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; border-radius: 6px; border: none; cursor: pointer; font-size: 13px; font-weight: 500; transition: background .15s, opacity .15s; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { background: var(--bg); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-sm { padding: 5px 10px; font-size: 12px; }

/* Tables */
.data-table { width: 100%; border-collapse: collapse; }
.data-table th { text-align: left; padding: 10px 12px; font-size: 12px; text-transform: uppercase; letter-spacing: .5px; color: var(--text-muted); border-bottom: 2px solid var(--border); }
.data-table td { padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.data-table tr:hover td { background: var(--primary-light); }

/* Forms */
label { display: block; margin-bottom: 12px; font-weight: 500; font-size: 13px; }
label input, label select, label textarea { display: block; width: 100%; margin-top: 4px; padding: 8px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 13px; font-family: inherit; }
label input:focus, label select:focus, label textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,58,92,.15); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
.form-row { display: flex; gap: 16px; align-items: center; margin-bottom: 12px; }

/* Modal */
.modal { position: fixed; inset: 0; background: rgba(0,0,0,.4); display: flex; align-items: center; justify-content: center; z-index: 1000; }
.modal-box { background: var(--card-bg); border-radius: var(--radius); padding: 28px; width: 100%; max-width: 560px; max-height: 90vh; overflow-y: auto; box-shadow: 0 8px 32px rgba(0,0,0,.18); }
.modal-box h2 { margin-bottom: 20px; font-size: 17px; }
.modal-actions { display: flex; gap: 10px; margin-top: 20px; }

/* Badges & misc */
.badge { display: inline-block; padding: 2px 8px; border-radius: 12px; font-size: 11px; font-weight: 600; background: var(--primary-light); color: var(--primary); margin-left: 6px; }
.badge-plan { background: #fef3c7; color: #92400e; }
.ctx-badge { padding: 3px 10px; border-radius: 12px; font-size: 12px; font-weight: 600; }
.ctx-private { background: var(--bg); color: var(--text-muted); border: 1px solid var(--border); }
.ctx-bc { background: var(--primary-light); color: var(--primary); }
.ctx-system { background: #1a3a5c; color: #fff; border: 1px solid #0f2540; }
.join-secret-box { background: var(--bg); border: 1px solid var(--border); border-radius: 6px; padding: 12px 16px; font-size: 18px; letter-spacing: 2px; text-align: center; margin-top: 8px; }
.detail-list { display: grid; grid-template-columns: 140px 1fr; gap: 8px 16px; }
.detail-list dt { font-weight: 600; color: var(--text-muted); }
.text-muted { color: var(--text-muted); }
.alert { padding: 10px 14px; border-radius: 6px; margin-top: 8px; }
.alert-success { background: var(--primary-light); color: var(--primary); }
.alert-error { background: #fef2f2; color: var(--danger); }

@media (max-width: 768px) {
  #sidebar { position: fixed; height: 100vh; z-index: 200; }
  #sidebar:not(.collapsed) { box-shadow: 4px 0 16px rgba(0,0,0,.2); }
  .form-grid { grid-template-columns: 1fr; }
}