/* ============================================
   Admin Page Styles - Black & White Design
   ============================================ */

/* Home Button */
.home-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: all 0.2s ease;
    margin-right: 1rem;
}

.home-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    color: var(--color-text);
    transform: translateY(-2px);
}

.admin-main {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-8) var(--space-6);
    padding-top: var(--space-12);
}

/* ============================================
   Login Section
   ============================================ */
.login-section {
    min-height: calc(100vh - 200px);
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    padding: var(--space-10);
    max-width: 400px;
    width: 100%;
    text-align: center;
}

.login-icon {
    font-size: 3rem;
    margin-bottom: var(--space-4);
    filter: grayscale(1);
}

.login-card h2 {
    margin-bottom: var(--space-2);
    color: var(--color-text);
}

.login-card > p {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-8);
}

.login-error {
    color: #888;
    margin-top: var(--space-4);
    font-size: var(--font-size-sm);
    min-height: 20px;
}

/* ============================================
   Form Styles
   ============================================ */
.form-group {
    margin-bottom: var(--space-5);
    text-align: left;
}

.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--color-text);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    outline: none;
    transition: all var(--transition-base);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-border-hover);
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.form-group select option {
    background: var(--color-bg-secondary);
    color: var(--color-text);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
}

.btn-full {
    width: 100%;
}

/* ============================================
   Admin Dashboard
   ============================================ */
.admin-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-8);
}

.admin-header h1 {
    font-size: var(--font-size-3xl);
    color: var(--color-text);
}

/* ============================================
   Stats Grid
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-10);
}

.stat-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    display: flex;
    align-items: center;
    gap: var(--space-4);
    transition: all var(--transition-base);
}

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

.stat-card.highlight {
    border-color: var(--color-text);
    background: var(--color-bg-tertiary);
}

.stat-icon {
    font-size: 2rem;
    filter: grayscale(1);
}

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-text);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ============================================
   Pending Section
   ============================================ */
.pending-section h2 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-6);
    color: var(--color-text);
}

.pending-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.loading {
    text-align: center;
    padding: var(--space-10);
    color: var(--color-text-secondary);
}

.no-pending {
    text-align: center;
    padding: var(--space-16);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
}

.no-pending-icon {
    font-size: 3rem;
    margin-bottom: var(--space-4);
    filter: grayscale(1);
}

.no-pending h3 {
    margin-bottom: var(--space-2);
    color: var(--color-text);
}

.no-pending p {
    color: var(--color-text-muted);
}

/* ============================================
   Pending Card
   ============================================ */
.pending-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

.pending-card:hover {
    border-color: var(--color-border-hover);
}

.pending-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    padding: var(--space-6);
    border-bottom: 1px solid var(--color-border);
}

.pending-card-info {
    flex: 1;
}

.pending-card-meta {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
    flex-wrap: wrap;
}

.pending-card-category {
    display: inline-flex;
    padding: var(--space-1) var(--space-3);
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
}

.pending-card-complexity,
.pending-card-language {
    padding: var(--space-1) var(--space-3);
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-full);
}

.pending-card-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--space-2);
    color: var(--color-text);
}

.pending-card-date {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.pending-card-body {
    padding: var(--space-6);
    background: var(--color-bg);
}

.pending-card-description {
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    line-height: 1.7;
    color: var(--color-text);
    white-space: pre-wrap;
    word-break: break-word;
    max-height: 200px;
    overflow-y: auto;
    padding: var(--space-4);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
}

.pending-card-actions {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
    background: var(--color-bg-tertiary);
    border-top: 1px solid var(--color-border);
}

.btn-approve {
    background: var(--color-text);
    color: var(--color-bg);
    flex: 1;
}

.btn-approve:hover {
    background: #ddd;
    transform: translateY(-2px);
}

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

.btn-edit:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-2px);
}

.btn-reject {
    background: #333;
    color: var(--color-text);
    flex: 1;
}

.btn-reject:hover {
    background: #444;
    transform: translateY(-2px);
}

.btn-delete {
    background: #333;
    color: var(--color-text);
    flex: 1;
}

.btn-delete:hover {
    background: #444;
    transform: translateY(-2px);
}

/* ============================================
   Approved Section
   ============================================ */
.approved-section {
    margin-top: var(--space-10);
}

.approved-section h2 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-6);
    color: var(--color-text);
}

.approved-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.no-approved {
    text-align: center;
    padding: var(--space-10);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
}

.approved-card {
    border-left: 3px solid var(--color-text);
}

/* ============================================
   Edit Modal
   ============================================ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    padding: var(--space-4);
}

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

.edit-modal {
    position: relative;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform: scale(0.9) translateY(20px);
    transition: all var(--transition-base);
}

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

.modal-close {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    z-index: 10;
}

.modal-close svg {
    pointer-events: none;
}

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

.modal-header {
    padding: var(--space-6);
    border-bottom: 1px solid var(--color-border);
}

.modal-header h2 {
    font-size: var(--font-size-xl);
    color: var(--color-text);
}

.modal-body {
    padding: var(--space-6);
    overflow-y: auto;
    flex: 1;
}

.modal-footer {
    display: flex;
    gap: var(--space-3);
    justify-content: flex-end;
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-tertiary);
}

/* ============================================
   Toast
   ============================================ */
.toast {
    position: fixed;
    bottom: var(--space-8);
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-6);
    background: var(--color-text);
    color: var(--color-bg);
    border-radius: var(--radius-lg);
    font-weight: 500;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    z-index: 300;
    opacity: 0;
    transition: all var(--transition-base);
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.toast.error {
    background: #333;
    color: #aaa;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
    .admin-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-4);
    }

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

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

    .pending-card-header {
        flex-direction: column;
    }

    .pending-card-actions {
        flex-direction: column;
    }

    .modal-footer {
        flex-direction: column;
    }

    .modal-footer .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
}