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

:root {
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --secondary: #8b5cf6;
    --accent: #ec4899;
    --bg-primary: #0a0a0f;
    --bg-secondary: #111118;
    --bg-tertiary: #1a1a24;
    --card-bg: rgba(30, 30, 46, 0.6);
    --card-border: rgba(255, 255, 255, 0.1);
    --card-hover: rgba(30, 30, 46, 0.8);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    --glass: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.6);
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-4: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    --border-radius: 20px;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

body {
    font-family: var(--font-family);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* 背景动画 */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: var(--gradient-1);
    top: -300px;
    left: -300px;
    animation-delay: 0s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: var(--gradient-2);
    bottom: -250px;
    right: -250px;
    animation-delay: 7s;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: var(--gradient-3);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 14s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(50px, 50px) scale(1.1);
    }
    66% {
        transform: translate(-50px, -50px) scale(0.9);
    }
}

.container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 3rem 2rem;
    position: relative;
    z-index: 1;
}

/* 头部样式 - 全新设计 */
.header {
    margin-bottom: 5rem;
    position: relative;
    padding-top: 2rem;
}

.header-top {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 4rem;
}

.header-nav {
    display: flex;
    gap: 0.75rem;
}

.nav-icon-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: inherit;
    position: relative;
    overflow: hidden;
}

.nav-icon-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: var(--primary);
    transform: translate(-50%, -50%);
    transition: width 0.3s ease, height 0.3s ease;
    opacity: 0.1;
}

.nav-icon-btn:hover::before {
    width: 100%;
    height: 100%;
}

.nav-icon-btn:hover {
    color: var(--primary);
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.nav-icon-btn svg {
    width: 20px;
    height: 20px;
    position: relative;
    z-index: 1;
}

.header-hero {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    animation: fadeInUp 0.8s ease-out;
}

.hero-content {
    margin-bottom: 3rem;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    display: inline-block;
    animation: pulseDot 2s ease-in-out infinite;
}

@keyframes pulseDot {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.6;
        transform: scale(1.2);
    }
}

.hero-title {
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.04em;
    animation: fadeInUp 0.8s ease-out 0.3s backwards;
}

.title-line {
    display: block;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title-accent {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    font-weight: 400;
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto;
    animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

.hero-search {
    animation: fadeInUp 0.8s ease-out 0.5s backwards;
}

.search-box-large {
    position: relative;
    display: flex;
    align-items: center;
    background: var(--card-bg);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 2px solid var(--card-border);
    border-radius: 24px;
    padding: 1.5rem 2rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    max-width: 700px;
    margin: 0 auto 1.5rem;
    box-shadow: var(--shadow-lg);
}

.search-box-large:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1), var(--shadow-xl);
    transform: translateY(-2px);
    background: var(--card-hover);
}

.search-icon-large {
    width: 24px;
    height: 24px;
    color: var(--text-muted);
    margin-right: 1rem;
    flex-shrink: 0;
    transition: color 0.3s ease;
}

.search-box-large:focus-within .search-icon-large {
    color: var(--primary);
}

#searchInput {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 1.125rem;
    font-family: inherit;
    font-weight: 400;
}

#searchInput::placeholder {
    color: var(--text-muted);
    font-weight: 400;
}

.clear-btn-large {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    margin-left: 0.5rem;
}

.clear-btn-large svg {
    width: 20px;
    height: 20px;
}

.clear-btn-large:hover {
    color: var(--text-primary);
    background: var(--glass);
}




/* 分类按钮 */
.category-section {
    margin-bottom: 3rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.category-section::-webkit-scrollbar {
    display: none;
}

.category-scroll {
    display: flex;
    gap: 0.75rem;
    padding-bottom: 0.5rem;
}

.category-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.category-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-1);
    transition: left 0.3s ease;
    z-index: -1;
}

.category-btn:hover {
    border-color: var(--primary);
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.category-btn.active {
    background: var(--gradient-1);
    border-color: transparent;
    color: white;
    box-shadow: var(--shadow-md);
}

.category-btn.active::before {
    left: 0;
}

/* 工具卡片网格 */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 1.5rem;
    margin-bottom: 4rem;
}

.tool-card {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 2rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.6s ease-out backwards;
}

.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-1);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.tool-card:hover {
    border-color: var(--primary);
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-xl);
    background: var(--card-hover);
}

.tool-card:hover::before {
    transform: scaleX(1);
}

.tool-header {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
    margin-bottom: 1.25rem;
}

.tool-icon {
    font-size: 3rem;
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-1);
    border-radius: calc(var(--border-radius) - 4px);
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease;
}

.tool-card:hover .tool-icon {
    transform: scale(1.1) rotate(5deg);
}

.tool-info {
    flex: 1;
    min-width: 0;
}

.tool-name {
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    word-break: break-word;
    line-height: 1.3;
}

.tool-category {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: rgba(99, 102, 241, 0.2);
    color: var(--primary);
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tool-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 1.25rem;
    flex: 1;
}

.tool-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.tag {
    padding: 0.375rem 0.75rem;
    background: rgba(139, 92, 246, 0.15);
    color: var(--secondary);
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid rgba(139, 92, 246, 0.2);
}

.tool-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 1.25rem;
    border-top: 1px solid var(--glass-border);
}

.tool-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.tool-link:hover {
    color: var(--primary-hover);
    gap: 0.75rem;
}

.tool-link svg {
    width: 16px;
    height: 16px;
}

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

.tool-action-btn {
    background: transparent;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 0.5rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tool-action-btn svg {
    width: 16px;
    height: 16px;
}

.tool-action-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
}

.tool-action-btn.delete:hover {
    border-color: #ef4444;
    color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
}

/* Tooltip样式 */
.tool-card {
    position: relative;
}

.tool-tooltip {
    position: fixed;
    z-index: 10000;
    pointer-events: none;
    opacity: 0;
    transform: translateY(10px) scale(0.95);
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    max-width: 360px;
    min-width: 280px;
}

.tool-tooltip.show {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

.tooltip-content {
    background: var(--card-bg);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border: 2px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-xl);
    position: relative;
}

.tooltip-content::before {
    content: '';
    position: absolute;
    width: 0;
    height: 0;
    border: 10px solid transparent;
}

.tooltip-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--glass-border);
}

.tooltip-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-1);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.tooltip-name {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.tooltip-category {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(99, 102, 241, 0.2);
    color: var(--primary);
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tooltip-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.tooltip-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tooltip-tag {
    padding: 0.375rem 0.75rem;
    background: rgba(139, 92, 246, 0.15);
    color: var(--secondary);
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid rgba(139, 92, 246, 0.2);
}

.tooltip-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--gradient-1);
    color: white;
    text-decoration: none;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    width: 100%;
    justify-content: center;
    margin-top: 0.5rem;
}

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

@media (max-width: 768px) {
    .tool-tooltip {
        display: none !important;
    }
}

/* 空状态 */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 6rem 2rem;
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 5rem;
    margin-bottom: 1.5rem;
    opacity: 0.5;
}

.empty-state-text {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

/* 加载状态 */
.loading-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 6rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--glass-border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-text {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* 模态框 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

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

.modal {
    background: var(--card-bg);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border: 1px solid var(--glass-border);
    border-radius: calc(var(--border-radius) + 4px);
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    transform: scale(0.9) translateY(20px);
    transition: transform 0.3s ease;
}

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

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem;
    border-bottom: 1px solid var(--glass-border);
}

.modal-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close svg {
    width: 24px;
    height: 24px;
}

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

.modal-form {
    padding: 2rem;
}

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

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

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
    background: rgba(30, 30, 46, 0.8);
}

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

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--glass-border);
}

.btn-primary,
.btn-secondary {
    padding: 0.875rem 1.5rem;
    border-radius: 12px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
    border: none;
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background: var(--glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

/* 页脚 */
.footer {
    text-align: center;
    padding: 3rem 0 2rem;
    color: var(--text-muted);
    border-top: 1px solid var(--glass-border);
    margin-top: 4rem;
}

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .tools-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
}

@media (max-width: 768px) {
    .container {
        padding: 2rem 1.5rem;
    }

    .logo {
        font-size: 2.25rem;
    }

    .logo-icon {
        font-size: 2.5rem;
    }

    .header-content {
        flex-direction: column;
    }

    .add-tool-btn {
        width: 100%;
        justify-content: center;
    }

    .tools-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }

    .search-box {
        max-width: 100%;
    }

    .modal {
        margin: 1rem;
        max-height: calc(100vh - 2rem);
    }

    .modal-header,
    .modal-form {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .logo-wrapper {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .logo {
        font-size: 1.875rem;
    }

    .category-btn span:first-child {
        display: none;
    }

}

/* 主题选择器 */
.theme-selector {
    position: fixed;
    top: 50%;
    right: -400px;
    transform: translateY(-50%);
    width: 380px;
    max-height: 80vh;
    background: var(--card-bg);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    box-shadow: var(--shadow-xl);
    z-index: 2000;
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.theme-selector.active {
    right: 2rem;
}

.theme-selector-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--glass-border);
}

.theme-selector-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.theme-selector-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-selector-close svg {
    width: 20px;
    height: 20px;
}

.theme-selector-close:hover {
    background: var(--glass);
    color: var(--text-primary);
}

.theme-grid {
    padding: 1.5rem;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    max-height: calc(80vh - 80px);
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--primary) transparent;
}

.theme-grid::-webkit-scrollbar {
    width: 6px;
}

.theme-grid::-webkit-scrollbar-track {
    background: transparent;
}

.theme-grid::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 3px;
}

.theme-option {
    position: relative;
    padding: 1rem;
    background: var(--glass);
    border: 2px solid var(--glass-border);
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    overflow: hidden;
}

.theme-option:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.theme-option.active {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.1);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.theme-option.active::after {
    content: '✓';
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    width: 24px;
    height: 24px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
}

.theme-preview {
    width: 100%;
    height: 80px;
    border-radius: 12px;
    margin-bottom: 0.75rem;
    position: relative;
    overflow: hidden;
}

.theme-preview::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--theme-preview);
    border-radius: 12px;
}

.theme-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: center;
}

@media (max-width: 768px) {
    .theme-selector {
        width: calc(100% - 2rem);
        right: -100%;
        top: auto;
        bottom: 2rem;
        transform: none;
        max-height: 60vh;
    }

    .theme-selector.active {
        right: 1rem;
        bottom: 1rem;
    }

    .theme-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
        padding: 1rem;
    }
}