.nav-tab {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-md);
    font-weight: 500;
    color: var(--color-text-secondary);
    background: var(--color-bg-secondary);
    clip-path: polygon(12px 0, 100% 0, calc(100% - 12px) 100%, 0 100%);
    transition: all var(--transition-fast);
    min-width: 100px;
}

.nav-tab:hover {
    background: var(--color-accent-gold-light);
    color: var(--color-text-primary);
}

.nav-tab.active {
    background: var(--color-accent-gold);
    color: var(--color-white);
}

.filter-sidebar {
    width: var(--sidebar-width);
    flex-shrink: 0;
    position: sticky;
    top: calc(var(--header-height) + var(--spacing-lg));
    height: fit-content;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
}

.filter-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.filter-title {
    font-size: 1.125rem;
    font-weight: 600;
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.filter-label {
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.search-input {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    transition: border-color var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--color-accent-gold);
}

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

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.filter-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
}

.filter-btn:hover {
    background: var(--color-bg-tertiary);
    border-color: var(--color-border-dark);
}

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

.filter-btn.element-pyro.active { background: var(--element-pyro); border-color: var(--element-pyro); }
.filter-btn.element-anemo.active { background: var(--element-anemo); border-color: var(--element-anemo); color: var(--color-text-primary); }
.filter-btn.element-geo.active { background: var(--element-geo); border-color: var(--element-geo); color: var(--color-text-primary); }
.filter-btn.element-electro.active { background: var(--element-electro); border-color: var(--element-electro); }
.filter-btn.element-hydro.active { background: var(--element-hydro); border-color: var(--element-hydro); color: var(--color-text-primary); }
.filter-btn.element-cryo.active { background: var(--element-cryo); border-color: var(--element-cryo); color: var(--color-text-primary); }
.filter-btn.element-dendro.active { background: var(--element-dendro); border-color: var(--element-dendro); color: var(--color-text-primary); }

.reset-filters-btn {
    width: 100%;
    padding: var(--spacing-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    transition: all var(--transition-fast);
}

.reset-filters-btn:hover {
    background: var(--color-bg-secondary);
    border-color: var(--color-border-dark);
}

.character-grid-section {
    flex: 1;
    min-width: 0;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
}

.character-count {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.character-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: var(--spacing-md);
}

.character-card {
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.character-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent-gold);
}

.character-avatar {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-sm);
    position: relative;
}

.avatar-ring {
    width: 100%;
    height: 100%;
    border-radius: var(--border-radius-full);
    padding: 3px;
    background: linear-gradient(135deg, var(--color-accent-gold) 0%, var(--color-accent-gold-dark) 50%, var(--color-accent-gold) 100%);
    box-shadow: 0 0 8px rgba(211, 188, 142, 0.4);
}

.avatar-ring img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--border-radius-full);
    background: var(--color-bg-secondary);
}

.character-avatar .element-icon {
    position: absolute;
    bottom: -4px;
    right: -4px;
    width: 24px;
    height: 24px;
    border-radius: var(--border-radius-full);
    background: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.character-name {
    font-weight: 600;
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.character-element {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.character-card.rarity-5 .avatar-ring {
    background: linear-gradient(135deg, #D4AF37 0%, #F4D03F 50%, #D4AF37 100%);
}

.character-card.rarity-4 .avatar-ring {
    background: linear-gradient(135deg, #6B5B95 0%, #8B7BB5 50%, #6B5B95 100%);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-md);
    font-weight: 500;
    border-radius: var(--border-radius-md);
    transition: all var(--transition-fast);
    gap: var(--spacing-xs);
}

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

.btn-primary:hover {
    background: var(--color-accent-gold-dark);
}

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

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

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

.btn-danger:hover {
    background: #E64545;
}

.modal {
    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: 1000;
    padding: var(--spacing-md);
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
}

.modal-content.modal-large {
    max-width: 700px;
}

.form-section {
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
}

.form-section:last-of-type {
    border-bottom: none;
    padding-bottom: 0;
}

.form-section-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
}

.avatar-upload {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.avatar-preview {
    width: 80px;
    height: 80px;
    border-radius: var(--border-radius-full);
    background: var(--color-bg-secondary);
    border: 2px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
}

.avatar-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.avatar-preview span {
    color: var(--color-text-muted);
    font-size: 0.75rem;
}

.avatar-upload-actions {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.avatar-upload-actions input[type="text"] {
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    background: var(--color-bg-primary);
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.875rem;
}

.skill-input-group {
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-sm);
    background: var(--color-bg-primary);
    border-radius: var(--border-radius-md);
}

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

.modal-header h2 {
    font-size: 1.25rem;
}

.modal-close {
    font-size: 1.5rem;
    color: var(--color-text-muted);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-full);
    transition: all var(--transition-fast);
}

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

.character-form {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-row {
    display: flex;
    gap: var(--spacing-md);
}

.form-row .form-group {
    flex: 1;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent-gold);
}

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

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-border);
}

.character-detail-container {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
    overflow: hidden;
}

.character-hero {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.character-artwork {
    flex: 1;
    min-height: 400px;
    background: linear-gradient(135deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.character-artwork img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.artwork-placeholder {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    font-size: 1.25rem;
}

.character-artwork img:not([src=""]) + .artwork-placeholder {
    display: none;
}

.character-info-panel {
    width: 360px;
    flex-shrink: 0;
}

.info-card {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
    overflow: hidden;
}

.info-card-header {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
    border-bottom: 1px solid var(--color-border);
}

.character-portrait {
    position: relative;
    width: 100px;
    height: 100px;
}

.portrait-frame {
    width: 100%;
    height: 100%;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    background: var(--color-bg-secondary);
    border: 2px solid var(--color-accent-gold);
}

.portrait-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.portrait-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.portrait-frame img:not([src=""]) + .portrait-placeholder {
    display: none;
}

.element-overlay {
    position: absolute;
    bottom: -4px;
    right: -4px;
    width: 32px;
    height: 32px;
    border-radius: var(--border-radius-full);
    background: var(--color-white);
    border: 2px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.character-basic-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.character-basic-info h1 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.char-title {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
}

.rarity-stars {
    font-size: 1rem;
    letter-spacing: 2px;
}

.info-card-body {
    padding: var(--spacing-md);
}

.info-card-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    display: flex;
    gap: var(--spacing-sm);
}

.character-intro {
    margin-bottom: var(--spacing-lg);
}

.intro-card {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
    padding: var(--spacing-lg);
}

.intro-card h3 {
    margin-bottom: var(--spacing-sm);
}

.intro-card p {
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.gallery-section {
    margin-bottom: var(--spacing-lg);
}

.gallery-section h3 {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.gallery-item {
    background: var(--color-bg-secondary);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--color-border);
    aspect-ratio: 3/4;
    overflow: hidden;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-item.portrait-item {
    aspect-ratio: 1/1;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.gallery-placeholder {
    position: absolute;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.gallery-item img:not([src=""]) + .gallery-placeholder {
    display: none;
}

.image-upload-row {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.image-upload-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.image-preview-large {
    width: 120px;
    height: 160px;
    border-radius: var(--border-radius-md);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.image-preview-large img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.image-preview-square {
    width: 100px;
    height: 100px;
    border-radius: var(--border-radius-md);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.image-preview-square img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.image-preview {
    width: 80px;
    height: 80px;
    border-radius: var(--border-radius-md);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.image-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.upload-btn {
    font-size: 0.75rem;
}

.detail-tabs {
    display: flex;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg-primary);
    padding: 0 var(--spacing-md);
}

.detail-tab {
    padding: var(--spacing-md) var(--spacing-lg);
    font-weight: 500;
    color: var(--color-text-secondary);
    position: relative;
    transition: color var(--transition-fast);
}

.detail-tab:hover {
    color: var(--color-text-primary);
}

.detail-tab.active {
    color: var(--color-accent-gold-dark);
}

.detail-tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-accent-gold);
}

.tab-content {
    padding: var(--spacing-lg);
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
}

.info-table-container {
    margin-bottom: var(--spacing-lg);
}

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

.info-table th,
.info-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.info-table th {
    width: 120px;
    font-weight: 500;
    color: var(--color-text-secondary);
    background: var(--color-bg-primary);
}

.info-table tr:nth-child(even) {
    background: var(--color-bg-primary);
}

.info-table tr:nth-child(odd) {
    background: var(--color-bg-secondary);
}

.character-description h3 {
    margin-bottom: var(--spacing-sm);
}

.character-description p {
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.skills-section {
    display: grid;
    gap: var(--spacing-md);
}

.skill-card {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
}

.skill-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.skill-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-md);
    background: var(--color-accent-gold-light);
}

.skill-icon.normal-attack {
    background: var(--color-bg-secondary);
}

.skill-icon.elemental-skill {
    background: linear-gradient(135deg, var(--color-accent-gold-light) 0%, var(--color-accent-gold) 100%);
}

.skill-icon.elemental-burst {
    background: linear-gradient(135deg, var(--element-electro-bg) 0%, var(--element-electro) 100%);
}

.skill-name {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.skill-description {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.constellation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.constellation-card {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
}

.constellation-level {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-accent-gold-dark);
    margin-bottom: var(--spacing-xs);
}

.constellation-name {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.constellation-desc {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.story-content {
    line-height: 1.8;
    color: var(--color-text-secondary);
}

.empty-message {
    color: var(--color-text-muted);
    padding: var(--spacing-md);
    text-align: center;
}

@media (max-width: 1024px) {
    .character-hero {
        flex-direction: column;
    }
    
    .character-artwork {
        min-height: 300px;
    }
    
    .character-info-panel {
        width: 100%;
    }
}

.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-accent-gold);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.toast {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    background: var(--color-text-primary);
    color: var(--color-white);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
    transform: translateY(100px);
    opacity: 0;
    transition: all var(--transition-normal);
    z-index: 1001;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast.success {
    background: #4CAF50;
}

.toast.error {
    background: var(--element-pyro);
}