/* ==========================================================
   Mini Project MUT — Design System & Theme Styles
   ========================================================== */

:root {
    --primary: #6366F1;
    --primary-hover: #4F46E5;
    --primary-light: rgba(99, 102, 241, 0.12);
    --secondary: #8B5CF6;
    --secondary-hover: #7C3AED;
    --accent: #06B6D4;
    --success: #22C55E;
    --warning: #F59E0B;
    --danger: #EF4444;

    /* Light Theme */
    --bg-main: #F8FAFC;
    --bg-surface: #FFFFFF;
    --bg-card: #FFFFFF;
    --bg-sidebar: #FFFFFF;
    --text-main: #0F172A;
    --text-muted: #64748B;
    --text-light: #94A3B8;
    --border-color: #E2E8F0;
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-border: rgba(226, 232, 240, 0.8);
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --card-shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] {
    --bg-main: #0B0F19;
    --bg-surface: #111827;
    --bg-card: #1E293B;
    --bg-sidebar: #111827;
    --text-main: #F1F5F9;
    --text-muted: #94A3B8;
    --text-light: #64748B;
    --border-color: #334155;
    --glass-bg: rgba(17, 24, 39, 0.8);
    --glass-border: rgba(51, 65, 85, 0.8);
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.2);
    --card-shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans Thai', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color 0.25s ease, color 0.25s ease;
}

/* Glassmorphism Classes */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
}

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

.sidebar {
    width: 260px;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    position: sticky;
    top: 0;
    height: 100vh;
    z-index: 100;
    transition: all 0.3s ease;
}

.sidebar-brand {
    padding: 1.5rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.brand-logo-badge {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
    box-shadow: 0 4px 10px rgba(99, 102, 241, 0.35);
}

.brand-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: -0.5px;
}

.brand-badge {
    font-size: 0.65rem;
    background: var(--primary-light);
    color: var(--primary);
    padding: 0.15rem 0.4rem;
    border-radius: 6px;
    font-weight: 600;
}

.sidebar-menu {
    padding: 1rem 0.75rem;
    list-style: none;
    margin: 0;
    flex-grow: 1;
    overflow-y: auto;
}

.menu-category {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-light);
    padding: 0.75rem 0.75rem 0.25rem;
}

.nav-link-custom {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.85rem;
    color: var(--text-muted);
    border-radius: 8px;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s ease;
    margin-bottom: 0.25rem;
}

.nav-link-custom:hover {
    color: var(--primary);
    background-color: var(--primary-light);
    transform: translateX(2px);
}

.nav-link-custom.active {
    color: #FFFFFF;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
}

.nav-link-custom i {
    font-size: 1.15rem;
}

/* User Card in Sidebar */
.sidebar-user {
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.avatar-sm {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: linear-gradient(135deg, #6366F1, #8B5CF6);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.user-info-text {
    flex-grow: 1;
    overflow: hidden;
}

.user-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-role-badge {
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* Content Area */
.main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    background: var(--bg-main);
}

.topbar {
    height: 64px;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 99;
}

.page-body {
    padding: 1.5rem;
    flex-grow: 1;
}

/* Cards & UI Elements */
.card-custom {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    transition: box-shadow 0.2s ease, transform 0.2s ease;
    overflow: hidden;
}

.card-custom:hover {
    box-shadow: var(--card-shadow-hover);
}

.card-header-custom {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: transparent;
}

.card-body-custom {
    padding: 1.25rem;
}

/* Stat Cards */
.stat-card {
    padding: 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    border-radius: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.stat-icon.primary { background: var(--primary-light); color: var(--primary); }
.stat-icon.success { background: rgba(34, 197, 94, 0.12); color: var(--success); }
.stat-icon.warning { background: rgba(245, 158, 11, 0.12); color: var(--warning); }
.stat-icon.danger { background: rgba(239, 68, 68, 0.12); color: var(--danger); }
.stat-icon.accent { background: rgba(6, 182, 212, 0.12); color: var(--accent); }

.stat-val {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-main);
}

.stat-lbl {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Custom Badges */
.badge-status {
    padding: 0.25rem 0.6rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.badge-priority-urgent { background: #FEE2E2; color: #DC2626; }
.badge-priority-high { background: #FEF3C7; color: #D97706; }
.badge-priority-normal { background: #E0E7FF; color: #4338CA; }
.badge-priority-low { background: #F1F5F9; color: #475569; }

/* Custom Buttons */
.btn-primary-custom {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #FFFFFF;
    border: none;
    padding: 0.5rem 1.1rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    transition: opacity 0.2s ease, transform 0.1s ease;
    text-decoration: none;
}

.btn-primary-custom:hover {
    opacity: 0.92;
    color: #FFFFFF;
    transform: translateY(-1px);
}

/* Tables */
.table-custom {
    width: 100%;
    border-collapse: collapse;
}

.table-custom th {
    background: var(--bg-surface);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
}

.table-custom td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.88rem;
    vertical-align: middle;
}

.table-custom tr:hover td {
    background-color: var(--primary-light);
}

/* Responsive adjustments */
@media (max-width: 991px) {
    .sidebar {
        position: fixed;
        left: -260px;
    }
    .sidebar.show {
        left: 0;
    }
}