/* PIJAR — Platform Integrasi Jadwal Akademik Realtime */
/* Design System */

:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: #1e293b;
    --bg-input: #0f172a;
    --border: #334155;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --purple: #8b5cf6;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --radius: 12px;
    --radius-sm: 8px;
    --sidebar-width: 260px;
    --topbar-height: 64px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Inter', sans-serif; background: var(--bg-primary); color: var(--text-primary); }

/* Layout */
.app-layout { display: flex; min-height: 100vh; }

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 100;
    transition: transform 0.3s;
}
.sidebar.collapsed { transform: translateX(-100%); }

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border);
}
.logo { display: flex; align-items: center; gap: 12px; }
.logo-icon {
    width: 44px; height: 44px;
    background: linear-gradient(135deg, var(--primary), var(--purple));
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 20px; color: white;
    box-shadow: 0 4px 15px rgba(59,130,246,0.3);
}
.brand { font-size: 20px; font-weight: 800; color: var(--text-primary); display: block; }
.sub { font-size: 11px; color: var(--text-muted); display: block; }

.sidebar-nav { flex: 1; padding: 16px 12px; overflow-y: auto; }
.nav-section {
    font-size: 10px; font-weight: 700; color: var(--text-muted);
    letter-spacing: 1px; padding: 16px 12px 6px; text-transform: uppercase;
}
.nav-item {
    display: flex; align-items: center; gap: 12px;
    padding: 10px 14px; border-radius: var(--radius-sm);
    color: var(--text-secondary); text-decoration: none;
    font-size: 14px; font-weight: 500;
    transition: all 0.2s; margin-bottom: 2px;
}
.nav-item:hover { background: rgba(255,255,255,0.05); color: var(--text-primary); }
.nav-item.active { background: rgba(59,130,246,0.15); color: var(--primary); }
.nav-item i { width: 20px; text-align: center; font-size: 15px; }

.sidebar-footer { padding: 16px; border-top: 1px solid var(--border); }
.version { font-size: 11px; color: var(--text-muted); text-align: center; }

/* Main Content */
.main-content {
    flex: 1; margin-left: var(--sidebar-width);
    display: flex; flex-direction: column;
}

.topbar {
    height: var(--topbar-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center;
    padding: 0 24px; gap: 16px;
    position: sticky; top: 0; z-index: 50;
}
.menu-toggle {
    background: none; border: none; color: var(--text-secondary);
    font-size: 18px; cursor: pointer; display: none;
}
.page-title { font-size: 20px; font-weight: 700; }

.content-area { padding: 24px; flex: 1; }

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
.card-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap; gap: 12px;
}
.card-header h2 { font-size: 16px; font-weight: 700; display: flex; align-items: center; gap: 8px; }
.card-header h2 i { color: var(--primary); }
.card-body { padding: 20px; }

/* Stats */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    display: flex; align-items: center; gap: 16px;
    transition: transform 0.2s;
}
.stat-card:hover { transform: translateY(-2px); }
.stat-icon {
    width: 48px; height: 48px;
    border-radius: 12px;
    background: color-mix(in srgb, var(--accent) 15%, transparent);
    display: flex; align-items: center; justify-content: center;
    font-size: 20px; color: var(--accent);
}
.stat-value { font-size: 28px; font-weight: 800; color: var(--text-primary); }
.stat-label { font-size: 12px; color: var(--text-secondary); font-weight: 500; }

/* Forms */
.form-grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.form-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; align-items: end; }
.form-group { margin-bottom: 0; }
.form-group label {
    display: block; color: var(--text-secondary); font-size: 12px;
    font-weight: 600; margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.5px;
}
.form-group input, .form-group select, select, input[type="text"], input[type="number"] {
    width: 100%; padding: 10px 12px;
    background: var(--bg-input); border: 1px solid var(--border);
    border-radius: var(--radius-sm); color: var(--text-primary);
    font-size: 14px; font-family: 'Inter', sans-serif;
    transition: border-color 0.3s;
}
.form-group input:focus, .form-group select:focus, select:focus, input:focus {
    outline: none; border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}

/* Buttons */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 18px; border: none; border-radius: var(--radius-sm);
    font-size: 14px; font-weight: 600; font-family: 'Inter', sans-serif;
    cursor: pointer; transition: all 0.2s; text-decoration: none;
}
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-hover)); color: white; }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 15px rgba(59,130,246,0.3); }
.btn-success { background: linear-gradient(135deg, var(--success), #059669); color: white; }
.btn-danger { background: rgba(239,68,68,0.15); color: var(--danger); }
.btn-danger:hover { background: rgba(239,68,68,0.25); }
.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn-lg { padding: 14px 28px; font-size: 16px; }

/* Tables */
.data-table { width: 100%; border-collapse: collapse; }
.data-table th {
    padding: 12px 16px; text-align: left;
    background: rgba(59,130,246,0.08); color: var(--text-secondary);
    font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border);
}
.data-table td {
    padding: 12px 16px; font-size: 14px;
    border-bottom: 1px solid rgba(51,65,85,0.5);
}
.data-table tr:hover { background: rgba(255,255,255,0.02); }

/* Schedule Grid */
.schedule-grid { width: 100%; border-collapse: collapse; }
.schedule-grid th {
    padding: 10px 12px; background: rgba(59,130,246,0.1);
    color: var(--primary); font-size: 13px; font-weight: 600;
    border: 1px solid var(--border); text-align: center;
}
.schedule-grid td {
    border: 1px solid var(--border);
    padding: 8px; text-align: center; font-size: 12px;
    min-width: 120px; vertical-align: middle;
}
.schedule-grid .jp-label { font-weight: 600; color: var(--text-secondary); min-width: auto; background: rgba(0,0,0,0.2); }
.schedule-grid .slot { cursor: default; transition: background 0.2s; }
.schedule-grid .slot.filled { background: rgba(16,185,129,0.08); }
.schedule-grid .slot.empty { color: var(--text-muted); }
.schedule-grid .slot.blocked { background: rgba(239,68,68,0.1); cursor: pointer; }
.schedule-grid .slot.available { background: rgba(16,185,129,0.05); cursor: pointer; }
.schedule-grid .slot.disabled { background: rgba(0,0,0,0.2); }
.slot-mapel { font-weight: 600; color: var(--text-primary); font-size: 13px; }
.slot-guru { color: var(--text-muted); font-size: 11px; margin-top: 2px; }

/* Badges */
.badge {
    display: inline-block; padding: 4px 10px; border-radius: 20px;
    font-size: 11px; font-weight: 600; text-transform: capitalize;
}
.badge-draft { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge-final { background: rgba(16,185,129,0.15); color: var(--success); }
.badge-archived { background: rgba(100,116,139,0.15); color: var(--text-muted); }
.badge-wajib { background: rgba(239,68,68,0.15); color: var(--danger); }
.badge-prioritas { background: rgba(59,130,246,0.15); color: var(--primary); }
.badge-hindari { background: rgba(245,158,11,0.15); color: var(--warning); }

/* Alerts */
.alert {
    padding: 14px 18px; border-radius: var(--radius-sm);
    font-size: 14px; line-height: 1.5;
}
.alert-success { background: rgba(16,185,129,0.1); border: 1px solid rgba(16,185,129,0.3); color: #6ee7b7; }
.alert-error { background: rgba(239,68,68,0.1); border: 1px solid rgba(239,68,68,0.3); color: #fca5a5; }

/* Tabs */
.tabs {
    display: flex; gap: 4px; margin-bottom: 20px;
    background: var(--bg-secondary); border-radius: var(--radius);
    padding: 4px; border: 1px solid var(--border);
    overflow-x: auto;
}
.tab {
    padding: 10px 16px; border: none; border-radius: var(--radius-sm);
    background: transparent; color: var(--text-secondary);
    font-size: 13px; font-weight: 600; cursor: pointer;
    transition: all 0.2s; white-space: nowrap;
    font-family: 'Inter', sans-serif;
}
.tab:hover { color: var(--text-primary); }
.tab.active { background: var(--primary); color: white; }

/* Hari Grid */
.hari-grid { display: flex; gap: 12px; flex-wrap: wrap; }
.hari-item {
    display: flex; align-items: center; gap: 10px;
    padding: 12px 16px; background: var(--bg-input);
    border: 1px solid var(--border); border-radius: var(--radius-sm);
}
.hari-item.active { border-color: var(--success); }
.jp-input {
    width: 60px !important; text-align: center;
    padding: 6px 8px !important; font-size: 14px !important;
}

/* Toggle Switch */
.switch { position: relative; width: 40px; height: 22px; display: inline-block; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider {
    position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0;
    background: var(--border); border-radius: 22px; transition: 0.3s;
}
.slider:before {
    content: ""; position: absolute; height: 16px; width: 16px; left: 3px; bottom: 3px;
    background: white; border-radius: 50%; transition: 0.3s;
}
input:checked + .slider { background: var(--success); }
input:checked + .slider:before { transform: translateX(18px); }

/* Checkbox Grid */
.checkbox-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 6px; max-height: 200px; overflow-y: auto;
    padding: 12px; background: var(--bg-input);
    border: 1px solid var(--border); border-radius: var(--radius-sm);
}
.checkbox-item {
    display: flex; align-items: center; gap: 6px;
    font-size: 13px; color: var(--text-secondary); cursor: pointer;
}
.checkbox-item input { accent-color: var(--primary); }

/* Grup Cards */
.grup-card {
    padding: 14px 16px; background: var(--bg-input);
    border: 1px solid var(--border); border-radius: var(--radius-sm);
    margin-bottom: 10px;
}
.grup-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.grup-info { font-size: 13px; color: var(--text-secondary); margin-bottom: 8px; }
.grup-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.tag {
    display: inline-block; padding: 3px 10px;
    background: rgba(59,130,246,0.12); color: var(--primary);
    border-radius: 20px; font-size: 12px; font-weight: 500;
}
.tag-guru { background: rgba(139,92,246,0.12); color: var(--purple); }

/* Search */
.search-input {
    padding: 8px 14px; background: var(--bg-input); border: 1px solid var(--border);
    border-radius: var(--radius-sm); color: var(--text-primary);
    font-size: 13px; font-family: 'Inter', sans-serif;
}
.search-input:focus { outline: none; border-color: var(--primary); }

/* Progress Bar */
.progress-bar {
    height: 6px; background: var(--border); border-radius: 6px; overflow: hidden;
}
.progress-fill {
    height: 100%; background: linear-gradient(90deg, var(--primary), var(--success));
    border-radius: 6px; transition: width 0.5s ease;
    width: 0%;
}

/* Toast */
.toast {
    position: fixed; bottom: 20px; right: 20px;
    padding: 14px 20px; border-radius: var(--radius-sm);
    font-size: 14px; font-weight: 500; z-index: 10000;
    transform: translateY(100px); opacity: 0;
    transition: all 0.3s;
    display: flex; align-items: center; gap: 8px;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast-success { background: var(--success); color: white; }
.toast-error { background: var(--danger); color: white; }

/* Responsive */
@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.collapsed { transform: translateX(0); }
    .main-content { margin-left: 0; }
    .menu-toggle { display: block; }
    .form-grid-3, .form-grid-4 { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}