/* ============================================
   Admin Dashboard Styles
   ============================================ */

:root {
    --admin-primary: #4ecdc4;
    --admin-primary-dark: #44a08d;
    --admin-accent: #f5a623;
    --admin-bg: #f0f2f5;
    --admin-sidebar: #1a1a2e;
    --admin-sidebar-hover: #16213e;
    --admin-card: #ffffff;
    --admin-text: #1a202c;
    --admin-text-light: #718096;
    --admin-border: #e2e8f0;
    --admin-success: #48bb78;
    --admin-danger: #f56565;
    --admin-warning: #ed8936;
    --admin-info: #4299e1;
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --radius: 12px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 4px 12px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 4px 24px rgba(0, 0, 0, 0.12);
    --transition: 0.2s ease;
}

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

body {
    font-family: var(--font-body);
    background: var(--admin-bg);
    color: var(--admin-text);
    overflow-x: hidden;
}

/* ============================================
   Login Screen
   ============================================ */

.login-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    padding: 20px;
}

.login-card {
    background: white;
    border-radius: 24px;
    padding: 48px 40px;
    width: 100%;
    max-width: 420px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.login-logo img {
    height: 80px;
    margin: 0 auto 16px;
    display: block;
}

.login-card h1 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    margin-bottom: 4px;
    color: var(--admin-text);
}

.login-card>p {
    color: var(--admin-text-light);
    margin-bottom: 32px;
}

.login-field {
    position: relative;
    margin-bottom: 16px;
}

.login-field i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--admin-text-light);
}

.login-field input {
    width: 100%;
    padding: 14px 16px 14px 44px;
    border: 2px solid var(--admin-border);
    border-radius: var(--radius);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

.login-field input:focus {
    outline: none;
    border-color: var(--admin-primary);
    box-shadow: 0 0 0 3px rgba(78, 205, 196, 0.15);
}

.login-error {
    color: var(--admin-danger);
    font-size: 0.875rem;
    min-height: 20px;
    margin-bottom: 8px;
}

.login-btn {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--admin-primary), var(--admin-primary-dark));
    color: white;
    border: none;
    border-radius: var(--radius);
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.05rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(78, 205, 196, 0.4);
}

/* ============================================
   Dashboard Layout
   ============================================ */

.dashboard {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background: var(--admin-sidebar);
    color: white;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: transform 0.3s ease;
}

.sidebar-header {
    padding: 24px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.sidebar-logo {
    height: 44px;
    width: auto;
}

.sidebar-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--admin-primary);
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 10px;
    color: rgba(255, 255, 255, 0.65);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
}

.nav-item:hover {
    background: var(--admin-sidebar-hover);
    color: white;
}

.nav-item.active {
    background: linear-gradient(135deg, var(--admin-primary), var(--admin-primary-dark));
    color: white;
    font-weight: 600;
}

.nav-item i {
    width: 20px;
    text-align: center;
    font-size: 1rem;
}

.badge {
    margin-left: auto;
    background: var(--admin-danger);
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 99px;
    min-width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 260px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-header {
    background: white;
    padding: 16px 32px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 50;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: var(--admin-text);
    padding: 8px;
}

.header-info h2 {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
}

.header-user {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--admin-text-light);
    font-weight: 500;
}

.header-user i {
    font-size: 1.5rem;
    color: var(--admin-primary);
}

.page-content {
    flex: 1;
    padding: 32px;
}

/* ============================================
   Cards & Stats
   ============================================ */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: white;
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 16px;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.stat-icon.messages {
    background: rgba(245, 166, 35, 0.12);
    color: var(--admin-accent);
}

.stat-icon.events {
    background: rgba(78, 205, 196, 0.12);
    color: var(--admin-primary);
}

.stat-icon.users {
    background: rgba(66, 153, 225, 0.12);
    color: var(--admin-info);
}

.stat-icon.unread {
    background: rgba(245, 101, 101, 0.12);
    color: var(--admin-danger);
}

.stat-info h3 {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 4px;
}

.stat-info p {
    color: var(--admin-text-light);
    font-size: 0.85rem;
    font-weight: 500;
}

/* ============================================
   Data Table
   ============================================ */

.table-card {
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.table-header {
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--admin-border);
    flex-wrap: wrap;
    gap: 12px;
}

.table-header h3 {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.1rem;
}

.table-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    border: none;
    border-radius: 8px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--admin-primary), var(--admin-primary-dark));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(78, 205, 196, 0.3);
}

.btn-secondary {
    background: var(--admin-bg);
    color: var(--admin-text);
    border: 1px solid var(--admin-border);
}

.btn-secondary:hover {
    background: #e2e8f0;
}

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

.btn-danger:hover {
    background: #e53e3e;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
}

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

.data-table th {
    background: var(--admin-bg);
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--admin-text-light);
    white-space: nowrap;
}

.data-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--admin-border);
    font-size: 0.9rem;
    vertical-align: middle;
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table tr:hover td {
    background: rgba(78, 205, 196, 0.04);
}

.status-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 99px;
    font-size: 0.75rem;
    font-weight: 600;
}

.status-badge.unread {
    background: rgba(245, 166, 35, 0.12);
    color: var(--admin-accent);
}

.status-badge.read {
    background: rgba(72, 187, 120, 0.12);
    color: var(--admin-success);
}

.status-badge.holiday {
    background: rgba(245, 101, 101, 0.12);
    color: var(--admin-danger);
}

.status-badge.event {
    background: rgba(156, 39, 176, 0.12);
    color: #9c27b0;
}

.status-badge.activity {
    background: rgba(126, 211, 33, 0.12);
    color: #5cb31a;
}

.actions-cell {
    display: flex;
    gap: 6px;
}

.action-btn {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.85rem;
}

.action-btn.view {
    background: rgba(66, 153, 225, 0.1);
    color: var(--admin-info);
}

.action-btn.view:hover {
    background: var(--admin-info);
    color: white;
}

.action-btn.edit {
    background: rgba(78, 205, 196, 0.1);
    color: var(--admin-primary);
}

.action-btn.edit:hover {
    background: var(--admin-primary);
    color: white;
}

.action-btn.delete {
    background: rgba(245, 101, 101, 0.1);
    color: var(--admin-danger);
}

.action-btn.delete:hover {
    background: var(--admin-danger);
    color: white;
}

.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--admin-text-light);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 12px;
    opacity: 0.3;
}

.empty-state p {
    font-size: 0.95rem;
}

/* ============================================
   Modal
   ============================================ */

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal {
    background: white;
    border-radius: 20px;
    width: 100%;
    max-width: 560px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

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

.modal-header h3 {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.2rem;
}

.modal-close {
    width: 36px;
    height: 36px;
    border: none;
    background: var(--admin-bg);
    border-radius: 50%;
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    color: var(--admin-text-light);
}

.modal-close:hover {
    background: var(--admin-danger);
    color: white;
}

.modal-body {
    padding: 24px;
}

/* ============================================
   Forms
   ============================================ */

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 6px;
    color: var(--admin-text);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 2px solid var(--admin-border);
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--admin-primary);
    box-shadow: 0 0 0 3px rgba(78, 205, 196, 0.1);
}

.form-group textarea {
    min-height: 80px;
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.form-submit {
    margin-top: 8px;
}

/* Detail view in modal */
.detail-row {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--admin-border);
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-label {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--admin-text-light);
    min-width: 120px;
    flex-shrink: 0;
}

.detail-value {
    font-size: 0.9rem;
    word-break: break-word;
}

/* CSV Upload Area */
.csv-upload-area {
    border: 2px dashed var(--admin-border);
    border-radius: var(--radius);
    padding: 32px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 12px;
}

.csv-upload-area:hover,
.csv-upload-area.dragover {
    border-color: var(--admin-primary);
    background: rgba(78, 205, 196, 0.05);
}

.csv-upload-area i {
    font-size: 2rem;
    color: var(--admin-primary);
    margin-bottom: 8px;
}

.csv-upload-area p {
    color: var(--admin-text-light);
    font-size: 0.9rem;
}

.csv-upload-area .filename {
    color: var(--admin-primary);
    font-weight: 600;
    margin-top: 8px;
}

.csv-help {
    font-size: 0.8rem;
    color: var(--admin-text-light);
    margin-top: 8px;
}

/* Filter bar */
.filter-bar {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 6px 14px;
    border: 1px solid var(--admin-border);
    border-radius: 99px;
    background: white;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    color: var(--admin-text-light);
}

.filter-btn:hover {
    border-color: var(--admin-primary);
    color: var(--admin-primary);
}

.filter-btn.active {
    background: var(--admin-primary);
    color: white;
    border-color: var(--admin-primary);
}

/* Settings card */
.settings-card {
    background: white;
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

.settings-card h3 {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.settings-card>p {
    color: var(--admin-text-light);
    font-size: 0.85rem;
    margin-bottom: 20px;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--admin-text);
    color: white;
    padding: 14px 24px;
    border-radius: var(--radius);
    font-weight: 500;
    font-size: 0.9rem;
    z-index: 2000;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

.toast.success {
    background: var(--admin-success);
}

.toast.error {
    background: var(--admin-danger);
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

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

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .menu-toggle {
        display: block;
    }

    .main-header {
        padding: 12px 16px;
    }

    .page-content {
        padding: 16px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .table-header {
        flex-direction: column;
        align-items: stretch;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .data-table {
        font-size: 0.8rem;
    }

    .data-table th,
    .data-table td {
        padding: 10px 8px;
    }
}