/* Admin Panel Styles */
.admin-body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.admin-container {
    width: 100%;
    max-width: 400px;
}

.login-card {
    background: var(--white);
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    animation: fadeInUp 0.6s ease-out;
}

.login-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 2rem;
    text-align: center;
}

.login-header .logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.login-header .logo i {
    color: var(--white);
    font-size: 1.5rem;
}

.login-header h2 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.login-header p {
    opacity: 0.9;
    font-size: 1rem;
}

.login-form {
    padding: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    font-weight: 500;
    font-size: 0.9rem;
}

.input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.input-group i {
    position: absolute;
    left: 1rem;
    color: var(--text-light);
    z-index: 2;
}

.input-group input {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    border: 2px solid #e1e8ed;
    border-radius: 10px;
    font-size: 1rem;
    transition: var(--transition);
    background: var(--white);
}

.input-group input:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.toggle-password {
    position: absolute;
    right: 1rem;
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    padding: 0.5rem;
    z-index: 3;
    display: flex;
    align-items: center;
    justify-content: center;
}

.toggle-password:hover {
    color: var(--secondary-color);
}

.checkbox-container {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-size: 0.95rem;
    color: var(--text-color);
    user-select: none;
}

.checkbox-container input {
    display: none;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid #e1e8ed;
    border-radius: 5px;
    margin-right: 10px;
    position: relative;
    transition: var(--transition);
    flex-shrink: 0;
}

.checkbox-container input:checked + .checkmark {
    background: var(--secondary-color);
    border-color: var(--secondary-color);
}

.checkbox-container input:checked + .checkmark::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 1px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.login-btn {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--secondary-color), #3498db);
    color: var(--white);
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(52, 152, 219, 0.3);
}

.login-btn:active {
    transform: translateY(0);
}

.login-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.login-links {
    text-align: center;
}

.back-link {
    color: var(--text-light);
    text-decoration: none;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.back-link:hover {
    color: var(--secondary-color);
}

.error-message {
    background: #ffebee;
    color: #c62828;
    padding: 1rem;
    margin: 1rem 2rem;
    border-radius: 8px;
    border-left: 4px solid #f44336;
    font-size: 0.9rem;
}

.success-message {
    background: #e8f5e8;
    color: #2e7d32;
    padding: 1rem;
    margin: 1rem 2rem;
    border-radius: 8px;
    border-left: 4px solid #4caf50;
    font-size: 0.9rem;
}

/* Admin Dashboard Styles */
.admin-layout {
    display: flex;
    min-height: 100vh;
    background: #f5f7fa;
}

.admin-sidebar {
    width: 260px;
    background: var(--white);
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 1000;
}

.admin-main {
    flex: 1;
    margin-left: 260px;
    padding: 2rem;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid #e1e8ed;
}

.sidebar-nav {
    padding: 1rem 0;
}

.nav-item {
    display: block;
    padding: 1rem 1.5rem;
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.nav-item:hover,
.nav-item.active {
    background: #f8f9fa;
    border-left-color: var(--secondary-color);
    color: var(--secondary-color);
}

.nav-item i {
    margin-right: 0.75rem;
    width: 20px;
}

.admin-header {
    background: var(--white);
    padding: 1rem 2rem;
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    border-radius: 10px;
}

.admin-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

.admin-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.logout-btn {
    background: var(--accent-color);
    color: var(--white);
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: var(--transition);
}

.logout-btn:hover {
    background: #c0392b;
}

.content-card {
    background: var(--white);
    border-radius: 10px;
    padding: 2rem;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid #e1e8ed;
}

.btn-secondary {
    background: #6c757d;
    color: var(--white);
}

.btn-secondary:hover {
    background: #5a6268;
}

.video-list {
    margin-top: 2rem;
}

.video-item {
    display: flex;
    align-items: center;
    padding: 1rem;
    border: 1px solid #e1e8ed;
    border-radius: 8px;
    margin-bottom: 1rem;
    background: var(--white);
}

.video-item img {
    width: 120px;
    height: 68px;
    object-fit: cover;
    border-radius: 4px;
    margin-right: 1rem;
}

.video-item-info {
    flex: 1;
}

.video-item-title {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.video-item-desc {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.video-item-date {
    color: var(--text-light);
    font-size: 0.8rem;
}

.video-item-actions {
    display: flex;
    gap: 0.5rem;
}

.btn-small {
    padding: 0.25rem 0.5rem;
    font-size: 0.8rem;
    border-radius: 4px;
}

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

.btn-danger:hover {
    background: #c0392b;
}

.file-upload {
    border: 2px dashed #e1e8ed;
    border-radius: 10px;
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
}

.file-upload:hover {
    border-color: var(--secondary-color);
    background: #f8f9fa;
}

.file-upload.dragover {
    border-color: var(--secondary-color);
    background: rgba(52, 152, 219, 0.1);
}

.file-upload i {
    font-size: 3rem;
    color: var(--text-light);
    margin-bottom: 1rem;
}

.file-upload input[type="file"] {
    display: none;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .admin-sidebar {
        transform: translateX(-100%);
        transition: var(--transition);
    }

    .admin-sidebar.active {
        transform: translateX(0);
    }

    .admin-main {
        margin-left: 0;
        padding: 1rem;
    }

    .admin-header {
        padding: 1rem;
        margin-bottom: 1rem;
    }

    .admin-title {
        font-size: 1.2rem;
    }

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

    .form-actions {
        flex-direction: column;
    }

    .video-item {
        flex-direction: column;
        text-align: center;
    }

    .video-item img {
        margin-right: 0;
        margin-bottom: 1rem;
    }
}

@media (max-width: 480px) {
    .admin-container {
        margin: 0;
        padding: 0;
    }

    .login-card {
        border-radius: 0;
        min-height: 100vh;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }

    .login-form {
        padding: 1.5rem;
    }
}

/* Dashboard Specific Styles */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.stat-card {
    background: linear-gradient(135deg, var(--secondary-color), #3498db);
    color: var(--white);
    padding: 1.5rem;
    border-radius: 10px;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.stat-icon {
    font-size: 2.5rem;
    opacity: 0.8;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

.content-section {
    display: none;
}

.content-section.active {
    display: block;
}

.video-preview {
    width: 100%;
    height: 300px;
    background: #000;
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-preview iframe,
.video-preview video {
    width: 100%;
    height: 100%;
}

.video-preview .video-placeholder {
    color: var(--white);
    text-align: center;
    opacity: 0.7;
}

.video-preview .video-placeholder i {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.user-info {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-right: 1rem;
}

.text-muted {
    color: var(--text-light);
    font-size: 0.9rem;
}

.admin-users ul {
    list-style: none;
    padding: 0;
    margin: 1rem 0;
}

.admin-users li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #e1e8ed;
}

.admin-users li:last-child {
    border-bottom: none;
}

select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e1e8ed;
    border-radius: 8px;
    font-size: 1rem;
    background: var(--white);
    transition: var(--transition);
}

select:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e1e8ed;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    resize: vertical;
    min-height: 80px;
    transition: var(--transition);
}

textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

input[type="date"] {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e1e8ed;
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transition);
}

input[type="date"]:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

/* Contact Messages Styles */
.contacts-filters {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.filter-btn {
    padding: 8px 16px;
    border: 2px solid #e1e8ed;
    background: white;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

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

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

.contacts-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-item {
    background: white;
    border: 2px solid #e1e8ed;
    border-radius: 10px;
    padding: 20px;
    transition: all 0.3s ease;
}

.contact-item.unread {
    border-color: var(--secondary-color);
    background: #f8fbff;
}

.contact-item:hover {
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.contact-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
    flex-wrap: wrap;
    gap: 10px;
}

.contact-info strong {
    display: block;
    font-size: 1.1rem;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.contact-email, .contact-phone {
    display: inline-block;
    margin-right: 15px;
    color: var(--text-light);
    font-size: 0.9rem;
}

.contact-email i, .contact-phone i {
    margin-right: 5px;
}

.contact-meta {
    display: flex;
    gap: 10px;
    align-items: center;
}

.contact-date {
    font-size: 0.85rem;
    color: var(--text-light);
}

.contact-status {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.contact-status.status-new {
    background: #e3f2fd;
    color: #1976d2;
}

.contact-status.status-read {
    background: #e8f5e9;
    color: #388e3c;
}

.contact-subject {
    margin-bottom: 10px;
    color: var(--text-color);
}

.contact-subject strong {
    color: var(--primary-color);
}

.contact-message {
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
    margin-bottom: 15px;
    line-height: 1.6;
    color: var(--text-color);
    white-space: pre-wrap;
}

.contact-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.85rem;
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
}

.btn-danger {
    background: #dc3545;
    color: white;
}

.btn-danger:hover {
    background: #c82333;
}

.empty-state, .error-state, .loading-state {
    text-align: center;
    padding: 40px;
    color: var(--text-light);
}

.empty-state i, .error-state i, .loading-state i {
    font-size: 3rem;
    margin-bottom: 15px;
    display: block;
    color: var(--text-light);
}

.error-state i {
    color: #dc3545;
}