/* ========================================
   Global Styles & Reset
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Light Theme Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --card-bg: #ffffff;
    --text-primary: #1a1a1a;
    --text-secondary: #6c757d;
    --text-muted: #adb5bd;
    --border-color: #dee2e6;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    
    /* Brand Colors */
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --secondary-color: #8b5cf6;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #3b82f6;
    
    /* Sidebar */
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 80px;
    --sidebar-bg: #ffffff;
    --sidebar-text: #6c757d;
    --sidebar-hover: #f8f9fa;
    --sidebar-active: #6366f1;
    
    /* Header */
    --header-height: 70px;
    --header-bg: #ffffff;
    
    /* Transitions */
    --transition-speed: 0.3s;
}

html {
    overflow-x: hidden;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

input, select {
    font-family: inherit;
    outline: none;
}

/* ========================================
   Layout Container
   ======================================== */
.app-container {
    display: flex;
    min-height: 100vh;
    position: relative;
    width: 100%;
    max-width: 100%;
    overflow-x: hidden;
}

/* ========================================
   Sidebar Styles
   ======================================== */
.sidebar {
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 1000;
    transition: transform var(--transition-speed) ease;
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 10px;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--primary-color);
    font-size: 20px;
    font-weight: 700;
}

.logo svg {
    flex-shrink: 0;
}

.logo-img {
    max-width: 32px;
    max-height: 32px;
    width: auto;
    height: auto;
    object-fit: contain;
    flex-shrink: 0;
}

.logo-text {
    white-space: nowrap;
}

/* Sidebar Navigation */
.sidebar-nav {
    flex: 1;
    padding: 20px 0;
    overflow-y: auto;
}

.nav-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 0 12px;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--sidebar-text);
    border-radius: 8px;
    transition: all 0.2s ease;
    position: relative;
}

.nav-link:hover {
    background: var(--sidebar-hover);
    color: var(--text-primary);
}

.nav-item.active .nav-link {
    background: rgba(99, 102, 241, 0.1);
    color: var(--sidebar-active);
    font-weight: 600;
}

.nav-icon {
    flex-shrink: 0;
    stroke-width: 2;
}

.nav-text {
    flex: 1;
    white-space: nowrap;
}

.nav-badge {
    background: var(--danger-color);
    color: white;
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 12px;
    font-weight: 600;
}

/* Submenu */
.has-submenu .nav-link {
    justify-content: space-between;
}

.submenu-arrow {
    stroke-width: 2;
    transition: transform 0.3s ease;
    margin-left: auto;
}

.has-submenu.active .submenu-arrow {
    transform: rotate(180deg);
}

.submenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    margin-left: 32px;
    margin-top: 4px;
}

.has-submenu.active .submenu {
    max-height: 300px;
}

.submenu li {
    margin-bottom: 4px;
}

.submenu a {
    display: block;
    padding: 8px 16px;
    color: var(--sidebar-text);
    border-radius: 6px;
    font-size: 13px;
    transition: all 0.2s ease;
}

.submenu a:hover {
    background: var(--secondary-color);
    color: #fff;
}

.submenu-item.active .submenu-link {
    background: var(--secondary-color);
    color: #fff;
    font-weight: 500;
}

.submenu-item.active .submenu-link .submenu-dot {
    background: #fff;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--border-color);
    flex-shrink: 0;
}

.storage-info {
    background: var(--bg-secondary);
    padding: 16px;
    border-radius: 8px;
}

.storage-header {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.storage-bar {
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 8px;
}

.storage-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--info-color));
    border-radius: 3px;
    transition: width 0.3s ease;
}

.storage-text {
    font-size: 12px;
    color: var(--text-secondary);
}

/* ========================================
   Main Content Area
   ======================================== */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: margin-left var(--transition-speed) ease;
    max-width: calc(100% - var(--sidebar-width));
    width: calc(100% - var(--sidebar-width));
    overflow-x: hidden;
}

/* ========================================
   Header Styles
   ======================================== */
.header {
    height: var(--header-height);
    background: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 999;
    display: flex;
    align-items: center;
}

.header-container {
    width: 100%;
    padding: 0 30px;
    display: flex;
    align-items: center;
    gap: 20px;
}

/* Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: 8px;
    cursor: pointer;
}

.menu-toggle span {
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* Search Bar */
.search-bar {
    flex: 1;
    max-width: 500px;
    position: relative;
}

.search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    stroke-width: 2;
}

.search-input {
    width: 100%;
    padding: 10px 16px 10px 48px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 14px;
    transition: all 0.2s ease;
}

.search-input:focus {
    background: var(--bg-primary);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Return to Superadmin Button (Impersonation Mode) */
.return-superadmin-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(245, 158, 11, 0.3);
    margin-left: 16px;
    animation: pulse-warning 2s infinite;
}

.return-superadmin-btn:hover {
    background: linear-gradient(135deg, #d97706 0%, #b45309 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.4);
}

.return-superadmin-btn svg {
    transform: rotate(180deg);
}

/* Periode Aktif Badge */
.periode-aktif-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark, #4f46e5) 100%);
    color: white;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.25);
    cursor: default;
    transition: all 0.3s ease;
}

.periode-aktif-badge:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
}

.periode-aktif-badge svg {
    opacity: 0.9;
    flex-shrink: 0;
}

.periode-aktif-badge .periode-label {
    opacity: 0.85;
}

.periode-aktif-badge .periode-value {
    font-weight: 600;
}

/* Periode Selector (Dropdown) */
.periode-selector-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
}

.periode-selector {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px 8px 14px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
}

.periode-selector:hover {
    background: var(--bg-tertiary);
    border-color: var(--primary-color);
}

.periode-selector.loading {
    opacity: 0.7;
    pointer-events: none;
}

.periode-selector.loading::after {
    content: '';
    position: absolute;
    right: 10px;
    width: 14px;
    height: 14px;
    border: 2px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.periode-selector svg:first-child {
    color: var(--primary-color);
    flex-shrink: 0;
}

.periode-selector .periode-label {
    color: var(--text-secondary);
    font-weight: 400;
}

.periode-selector .periode-select {
    appearance: none;
    -webkit-appearance: none;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    padding: 0;
    outline: none;
    min-width: 120px;
}

.periode-selector .periode-select:focus {
    outline: none;
}

.periode-selector .periode-select option {
    background: var(--bg-primary);
    color: var(--text-primary);
    padding: 10px 12px;
    font-size: 13px;
    font-weight: 500;
}

.periode-selector .periode-select option:hover,
.periode-selector .periode-select option:checked {
    background: var(--bg-secondary);
}

.periode-selector .periode-arrow {
    color: var(--text-muted);
    flex-shrink: 0;
    margin-left: -4px;
    pointer-events: none;
}

.periode-edit-hint {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    color: var(--text-muted);
    cursor: help;
    transition: all 0.2s ease;
}

.periode-edit-hint:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* Dosen Selector (Custom Dropdown) */
.dosen-selector-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: 10px;
}

.dosen-custom-dropdown {
    position: relative;
}

.dosen-dropdown-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px 8px 14px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    cursor: pointer;
    transition: all 0.2s ease;
}

.dosen-dropdown-toggle:hover {
    background: var(--bg-tertiary);
    border-color: var(--primary-color);
}

.dosen-custom-dropdown.open .dosen-dropdown-toggle {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.dosen-dropdown-toggle svg:first-child {
    color: var(--primary-color);
    flex-shrink: 0;
}

.dosen-dropdown-toggle .dosen-label {
    color: var(--text-secondary);
    font-weight: 400;
}

.dosen-dropdown-toggle .dosen-selected-text {
    font-weight: 600;
    max-width: 180px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dosen-dropdown-toggle .dosen-arrow {
    color: var(--text-muted);
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.dosen-custom-dropdown.open .dosen-arrow {
    transform: rotate(180deg);
}

.dosen-dropdown-menu {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    min-width: 280px;
    max-width: 350px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    z-index: 1050;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
}

.dosen-custom-dropdown.open .dosen-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dosen-dropdown-search {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-color);
}

.dosen-dropdown-search svg {
    color: var(--text-muted);
    flex-shrink: 0;
}

.dosen-dropdown-search input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: 13px;
    color: var(--text-primary);
    outline: none;
}

.dosen-dropdown-search input::placeholder {
    color: var(--text-muted);
}

.dosen-dropdown-options {
    max-height: 280px;
    overflow-y: auto;
    padding: 6px;
}

.dosen-dropdown-option {
    padding: 10px 12px;
    font-size: 13px;
    color: var(--text-primary);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.dosen-dropdown-option:hover {
    background: var(--bg-secondary);
}

.dosen-dropdown-option.selected {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
    font-weight: 600;
}

.dosen-reset-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 10px;
    background: #ef4444;
    color: white;
    border-radius: 6px;
    font-size: 12px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
}

.dosen-reset-btn:hover {
    background: #dc2626;
}

/* Periode Info Box - Global */
.periode-info-box {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.periode-info-box svg {
    flex-shrink: 0;
    color: #3b82f6;
}

.periode-info-box strong {
    color: #3b82f6;
}

/* Readonly row styling - Global */
.row-readonly {
    background: var(--bg-secondary) !important;
    opacity: 0.75;
}

.row-readonly:hover {
    background: var(--bg-secondary) !important;
}

.readonly-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 6px;
    background: rgba(156, 163, 175, 0.1);
    color: #9ca3af;
    cursor: not-allowed;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes pulse-warning {
    0%, 100% {
        box-shadow: 0 2px 8px rgba(245, 158, 11, 0.3);
    }
    50% {
        box-shadow: 0 2px 16px rgba(245, 158, 11, 0.5);
    }
}

/* Header Right Section */
.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-left: auto;
}

/* Theme Toggle */
.theme-toggle {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    color: var(--text-primary);
    transition: all 0.2s ease;
}

.theme-toggle:hover {
    background: var(--bg-secondary);
}

.moon-icon {
    display: none;
}

/* Notification */
.notification-wrapper {
    position: relative;
}

.notification-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    color: var(--text-primary);
    transition: all 0.2s ease;
    position: relative;
}

.notification-btn:hover {
    background: var(--bg-secondary);
}

.notification-badge {
    position: absolute;
    top: 6px;
    right: 6px;
    background: var(--danger-color);
    color: white;
    font-size: 10px;
    font-weight: 700;
    padding: 2px 5px;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
}

/* User Profile */
.user-profile {
    position: relative;
    z-index: 1001;
}

.user-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 12px;
    border-radius: 10px;
    border: none;
    background: transparent;
    cursor: pointer;
    transition: all 0.2s ease;
}

.user-btn:hover {
    background: var(--bg-secondary);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
}

.user-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
}

.user-name {
    font-weight: 600;
    font-size: 13px;
    color: var(--text-primary);
}

.user-role {
    font-size: 11px;
    color: var(--text-secondary);
}

.dropdown-arrow {
    color: var(--text-secondary);
    transition: transform 0.2s ease;
}

.user-dropdown.active + .user-btn .dropdown-arrow,
.user-btn[aria-expanded="true"] .dropdown-arrow {
    transform: rotate(180deg);
}

.user-dropdown {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    min-width: 220px;
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 1100;
}

.user-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 8px;
}

.dropdown-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.dropdown-user-info {
    display: flex;
    flex-direction: column;
}

.dropdown-name {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary);
}

.dropdown-email {
    font-size: 12px;
    color: var(--text-secondary);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 8px;
    font-size: 13px;
    transition: all 0.2s ease;
}

.dropdown-item:hover {
    background: var(--bg-secondary);
}

.dropdown-item svg {
    color: var(--text-secondary);
}

.dropdown-item.text-danger {
    color: #ef4444;
}

.dropdown-item.text-danger svg {
    color: #ef4444;
}

.dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: 8px 0;
}

/* ========================================
   Content Wrapper
   ======================================== */
.content-wrapper {
    flex: 1;
    padding: 30px;
}

/* Page Header */
.page-header {
    margin-bottom: 30px;
}

.page-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 15px;
}

/* ========================================
   Stats Grid
   ======================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    display: flex;
    gap: 16px;
    transition: all 0.3s ease;
    animation: slideUp 0.5s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

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

.stat-icon.blue {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
}

.stat-icon.green {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.stat-icon.purple {
    background: rgba(168, 85, 247, 0.1);
    color: #a855f7;
}

.stat-icon.orange {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

.stat-content {
    flex: 1;
}

.stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 8px;
}

.stat-change {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    font-weight: 600;
}

.stat-change.positive {
    color: var(--success-color);
}

.stat-change.negative {
    color: var(--danger-color);
}

.stat-change svg {
    stroke-width: 3;
}

/* ========================================
   Charts Grid
   ======================================== */
.charts-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
    margin-bottom: 30px;
}

.chart-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    animation: slideUp 0.6s ease;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.card-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.chart-select {
    padding: 6px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 13px;
    cursor: pointer;
}

.chart-placeholder {
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border-radius: 8px;
}

/* Activity List */
.activity-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.activity-item {
    display: flex;
    gap: 12px;
    padding: 12px;
    background: var(--bg-secondary);
    border-radius: 8px;
    transition: all 0.2s ease;
}

.activity-item:hover {
    background: var(--bg-tertiary);
}

.activity-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.activity-icon.blue {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
}

.activity-icon.green {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.activity-icon.purple {
    background: rgba(168, 85, 247, 0.1);
    color: #a855f7;
}

.activity-icon.orange {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

.activity-content {
    flex: 1;
}

.activity-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.activity-time {
    font-size: 12px;
    color: var(--text-secondary);
}

/* ========================================
   Table Styles
   ======================================== */
.table-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    animation: slideUp 0.7s ease;
}

.view-all-btn {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 14px;
    transition: color 0.2s ease;
}

.view-all-btn:hover {
    color: var(--primary-hover);
}

.table-wrapper {
    overflow-x: auto;
    margin-top: 20px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table thead {
    background: var(--bg-secondary);
    border-radius: 8px;
}

.data-table th {
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    font-size: 13px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-table td {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.data-table tbody tr {
    transition: background 0.2s ease;
}

.data-table tbody tr:hover {
    background: var(--bg-secondary);
}

.customer-cell {
    display: flex;
    align-items: center;
    gap: 10px;
}

.table-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

.status-badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    display: inline-block;
}

.status-badge.success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.status-badge.pending {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

.status-badge.processing {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
}

/* ========================================
   Overlay & Mobile Menu
   ======================================== */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ========================================
   Animations
   ======================================== */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* ========================================
   Responsive Design
   ======================================== */

/* Hide on compact class - for responsive profile */
@media (max-width: 1400px) {
    .hide-on-compact {
        display: none !important;
    }
}

/* Extra Large Desktop - hide user info on smaller screens */
@media (max-width: 1400px) {
    /* Compact user profile - only show avatar */
    .header .user-profile .user-info,
    .header-right .user-profile .user-info,
    .user-btn > .user-info,
    .user-profile .user-btn .user-info {
        display: none !important;
        visibility: hidden !important;
        width: 0 !important;
        height: 0 !important;
        overflow: hidden !important;
    }
    
    .user-btn > svg:last-child,
    .user-profile .user-btn > svg {
        display: none !important;
    }
    
    .header .user-profile .user-btn,
    .header-right .user-btn,
    .user-profile .user-btn {
        padding: 6px !important;
        gap: 0 !important;
    }
    
    .header-right {
        gap: 8px;
    }
}

@media (max-width: 1280px) {
    /* Ensure compact user profile */
    .user-info {
        display: none !important;
    }
    
    .user-btn > svg:last-child {
        display: none !important;
    }
    
    .user-btn {
        padding: 6px !important;
        gap: 0 !important;
    }
}

@media (max-width: 1024px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 900px) {
    /* Compact profile - hide all user info */
    .user-info {
        display: none !important;
    }
    
    .user-btn > svg {
        display: none !important;
    }
    
    .user-btn {
        padding: 6px !important;
        gap: 0 !important;
    }
    
    .header-right {
        gap: 8px;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
        max-width: 100%;
        width: 100%;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .search-bar {
        max-width: none;
        flex: 1;
    }
    
    .header-container {
        padding: 0 20px;
    }
    
    .content-wrapper {
        padding: 20px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .user-name {
        display: none;
    }
    
    .user-role {
        display: none;
    }
    
    .user-info {
        display: none;
    }
    
    .user-btn {
        padding: 6px;
        gap: 0;
    }
    
    .user-btn > svg {
        display: none;
    }
    
    .page-title {
        font-size: 24px;
    }
    
    /* Hide periode label on mobile */
    .periode-aktif-badge .periode-label {
        display: none;
    }
    
    .periode-aktif-badge {
        padding: 5px 10px;
        font-size: 11px;
    }
    
    .periode-selector .periode-label {
        display: none;
    }
    
    .periode-selector {
        padding: 5px 8px 5px 10px;
        font-size: 11px;
    }
    
    .periode-edit-hint {
        display: none;
    }
    
    /* Dosen selector responsive */
    .dosen-dropdown-toggle .dosen-label {
        display: none;
    }
    
    .dosen-dropdown-toggle {
        padding: 5px 8px 5px 10px;
        font-size: 11px;
    }
    
    .dosen-dropdown-toggle .dosen-selected-text {
        max-width: 120px;
        font-size: 11px;
    }
    
    .dosen-reset-btn {
        padding: 4px 8px;
        font-size: 11px;
    }
}

@media (max-width: 480px) {
    .search-input {
        font-size: 13px;
    }
    
    .table-wrapper {
        overflow-x: auto;
    }
    
    .data-table {
        min-width: 600px;
    }
    
    /* Header responsive */
    .header {
        padding: 10px 12px;
    }
    
    .header-container {
        padding: 0 12px;
        gap: 8px;
    }
    
    /* Hide search on very small screens */
    .search-bar {
        display: none;
    }
    
    /* Periode selector compact */
    .periode-selector-wrapper {
        display: none;
    }
    
    /* Dosen selector compact */
    .dosen-selector-wrapper {
        display: none;
    }
    
    /* User profile compact */
    .user-profile {
        padding: 6px 8px;
    }
    
    .user-avatar {
        width: 32px;
        height: 32px;
        font-size: 12px;
    }
    
    .user-name,
    .user-role {
        display: none;
    }
    
    /* Theme toggle compact */
    .theme-toggle,
    .notification-btn {
        width: 36px;
        height: 36px;
    }
    
    /* Header right section */
    .header-right {
        gap: 6px;
    }
    
    /* Notification badge */
    .notification-badge {
        width: 16px;
        height: 16px;
        font-size: 9px;
    }
    
    /* Content wrapper */
    .content-wrapper {
        padding: 12px;
    }
    
    /* Page header */
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
    
    .page-title {
        font-size: 20px;
    }
    
    .page-subtitle {
        font-size: 13px;
    }
    
    /* Cards */
    .card,
    .settings-card {
        padding: 16px;
        border-radius: 12px;
    }
    
    /* Buttons */
    .btn {
        padding: 8px 14px;
        font-size: 13px;
    }
    
    /* Stats grid */
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .stat-card {
        padding: 16px;
    }
    
    /* Return superadmin button */
    .return-superadmin-btn span {
        display: none;
    }
    
    .return-superadmin-btn {
        padding: 8px;
        border-radius: 8px;
    }
}

/* Extra small screens (375px and below) */
@media (max-width: 375px) {
    .header-container {
        padding: 0 8px;
    }
    
    .menu-toggle {
        padding: 6px;
    }
    
    .menu-toggle span {
        width: 18px;
    }
    
    .content-wrapper {
        padding: 10px;
    }
    
    .page-title {
        font-size: 18px;
    }
    
    .card,
    .settings-card {
        padding: 12px;
    }
    
    .btn {
        padding: 6px 12px;
        font-size: 12px;
    }
}

/* ========================================
   Badges
   ======================================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 600;
    border-radius: 20px;
}

.badge-primary {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary-color);
}

.badge-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
}

/* Role Badge in Sidebar */
.role-badge {
    display: inline-block;
    margin-top: 10px;
    padding: 4px 10px;
    background: linear-gradient(135deg, var(--primary-color) 0%, #8b5cf6 100%);
    color: white;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-radius: 20px;
}

/* Page Header Enhanced */
.page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 30px;
}

.page-header-left {
    flex: 1;
}

.page-header-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* User Info in Header */
.user-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
}

.user-role {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 400;
}

/* Dropdown Enhanced */
.dropdown-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
}

.dropdown-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.dropdown-user-info {
    display: flex;
    flex-direction: column;
}

.dropdown-name {
    font-weight: 600;
    color: var(--text-primary);
}

.dropdown-email {
    font-size: 12px;
    color: var(--text-secondary);
}

.text-danger {
    color: var(--danger-color) !important;
}

@media (max-width: 768px) {
    .user-info {
        display: none;
    }
    
    .page-header {
        flex-direction: column;
    }
    
    .page-header-right {
        width: 100%;
        justify-content: flex-end;
    }
}

/* ========================================
   Bootstrap-like Utility Classes
   ======================================== */

/* Grid System */
.row {
    display: flex;
    flex-wrap: wrap;
    margin-right: -12px;
    margin-left: -12px;
}

.row > * {
    flex-shrink: 0;
    width: 100%;
    max-width: 100%;
    padding-right: 12px;
    padding-left: 12px;
}

/* Column Classes */
.col-md-2 { flex: 0 0 auto; width: 16.66666667%; }
.col-md-3 { flex: 0 0 auto; width: 25%; }
.col-md-4 { flex: 0 0 auto; width: 33.33333333%; }
.col-md-5 { flex: 0 0 auto; width: 41.66666667%; }
.col-md-6 { flex: 0 0 auto; width: 50%; }
.col-md-7 { flex: 0 0 auto; width: 58.33333333%; }
.col-md-8 { flex: 0 0 auto; width: 66.66666667%; }
.col-md-9 { flex: 0 0 auto; width: 75%; }
.col-md-10 { flex: 0 0 auto; width: 83.33333333%; }
.col-md-12 { flex: 0 0 auto; width: 100%; }

@media (max-width: 768px) {
    .col-md-2, .col-md-3, .col-md-4, .col-md-5, .col-md-6,
    .col-md-7, .col-md-8, .col-md-9, .col-md-10, .col-md-12 {
        width: 100%;
    }
}

/* Gap Classes */
.g-3 { gap: 1rem; }
.g-4 { gap: 1.5rem; }

/* Margin & Padding Utilities */
.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 0.25rem !important; }
.mb-2 { margin-bottom: 0.5rem !important; }
.mb-3 { margin-bottom: 1rem !important; }
.mb-4 { margin-bottom: 1.5rem !important; }
.mb-5 { margin-bottom: 3rem !important; }

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: 0.25rem !important; }
.mt-2 { margin-top: 0.5rem !important; }
.mt-3 { margin-top: 1rem !important; }
.mt-4 { margin-top: 1.5rem !important; }

.me-1 { margin-right: 0.25rem !important; }
.me-2 { margin-right: 0.5rem !important; }
.me-3 { margin-right: 1rem !important; }

.ms-1 { margin-left: 0.25rem !important; }
.ms-2 { margin-left: 0.5rem !important; }
.ms-3 { margin-left: 1rem !important; }

.p-0 { padding: 0 !important; }
.p-2 { padding: 0.5rem !important; }
.p-3 { padding: 1rem !important; }
.p-4 { padding: 1.5rem !important; }

/* Display Utilities */
.d-flex { display: flex !important; }
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-inline-block { display: inline-block !important; }

/* Flex Utilities */
.flex-wrap { flex-wrap: wrap !important; }
.flex-column { flex-direction: column !important; }
.justify-content-between { justify-content: space-between !important; }
.justify-content-center { justify-content: center !important; }
.justify-content-end { justify-content: flex-end !important; }
.justify-content-start { justify-content: flex-start !important; }
.align-items-center { align-items: center !important; }
.align-items-start { align-items: flex-start !important; }
.align-items-end { align-items: flex-end !important; }

/* Width Utilities */
.w-100 { width: 100% !important; }
.w-50 { width: 50% !important; }
.w-auto { width: auto !important; }

/* Text Utilities */
.text-center { text-align: center !important; }
.text-start { text-align: left !important; }
.text-end { text-align: right !important; }
.text-muted { color: var(--text-muted) !important; }
.text-primary { color: var(--primary-color) !important; }
.text-success { color: var(--success-color) !important; }
.text-warning { color: var(--warning-color) !important; }

/* Form Check (Checkbox/Radio) */
.form-check {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 8px;
}

.form-check-input {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.form-check-label {
    cursor: pointer;
    font-weight: 500;
    color: var(--text-primary);
}

/* Button Group */
.btn-group {
    display: inline-flex;
    border-radius: 8px;
    overflow: hidden;
}

.btn-group .btn {
    border-radius: 0;
    border-right: 1px solid rgba(255,255,255,0.2);
}

.btn-group .btn:first-child {
    border-top-left-radius: 8px;
    border-bottom-left-radius: 8px;
}

.btn-group .btn:last-child {
    border-top-right-radius: 8px;
    border-bottom-right-radius: 8px;
    border-right: none;
}

.btn-check {
    position: absolute;
    clip: rect(0,0,0,0);
    pointer-events: none;
}

.btn-check:checked + .btn-outline-primary {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.btn-outline-primary {
    background: transparent;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-outline-primary:hover {
    background: var(--primary-color);
    color: white;
}

/* Small Text */
small, .small {
    font-size: 12px;
    color: var(--text-secondary);
}

small.d-block {
    display: block;
    margin-top: 4px;
}

/* Role Group for Button Groups */
[role="group"] {
    position: relative;
}
/* ========================================
   Card Component
   ======================================== */
.card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    overflow: hidden;
}

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

.card .card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.card .card-body {
    padding: 24px;
}

.card .card-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

/* ========================================
   Form Components
   ======================================== */
.form-label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-size: 14px;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    font-size: 14px;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.2s ease;
    outline: none;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-control:disabled {
    background-color: var(--bg-tertiary);
    cursor: not-allowed;
    opacity: 0.7;
}

select.form-control {
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-color: var(--bg-primary);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236c757d' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 40px;
}

textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

/* ========================================
   Button Components
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    gap: 8px;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn svg {
    flex-shrink: 0;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: var(--border-color);
}

.btn-success {
    background: var(--success-color);
    color: white;
}

.btn-success:hover {
    background: #059669;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

.btn-warning {
    background: var(--warning-color);
    color: white;
}

.btn-warning:hover {
    background: #d97706;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.4);
}

.btn-danger {
    background: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.4);
}

.btn-info {
    background: var(--info-color);
    color: white;
}

.btn-info:hover {
    background: #2563eb;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.btn-sm {
    padding: 8px 14px;
    font-size: 13px;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
}

/* ========================================
   Badge Component
   ======================================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 600;
    border-radius: 20px;
    background: var(--primary-color);
    color: white;
}

.badge-primary {
    background: var(--primary-color);
    color: white;
}

.badge-success {
    background: var(--success-color);
    color: white;
}

.badge-warning {
    background: var(--warning-color);
    color: white;
}

.badge-danger {
    background: var(--danger-color);
    color: white;
}

.badge-info {
    background: var(--info-color);
    color: white;
}

.badge-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

/* ========================================
   Table Responsive
   ======================================== */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* ========================================
   Modal Components
   ======================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    opacity: 1;
    visibility: visible;
    transition: all 0.3s ease;
    padding: 20px;
    backdrop-filter: blur(4px);
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
    visibility: visible;
}

/* Modal using .modal class (for dynamic modals) */
.modal {
    background: var(--bg-primary);
    border-radius: 16px;
    width: 95%;
    max-width: 800px;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    display: flex;
    flex-direction: column;
}

/* Modal using .modal-container class */
.modal-container {
    background: var(--bg-primary);
    border-radius: 16px;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.9) translateY(-20px);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.modal-overlay.active .modal-container {
    transform: scale(1) translateY(0);
}

.modal-container.modal-sm {
    max-width: 400px;
}

.modal-container.modal-lg {
    max-width: 800px;
}

.modal-container.modal-xl {
    max-width: 1140px;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    color: var(--text-secondary);
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

/* ========================================
   Alert Components
   ======================================== */
.alert {
    padding: 16px 20px;
    border-radius: 10px;
    margin-bottom: 16px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #065f46;
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #991b1b;
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: #92400e;
}

.alert-info {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: #1e40af;
}

/* ========================================
   Empty State
   ======================================== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
}

.empty-state svg {
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state p {
    color: var(--text-muted);
    font-size: 15px;
}

/* ========================================
   Loading Spinner
   ======================================== */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3000;
}