/**
 * 飞传 FileFly - 样式文件
 * 现代科技风 + 炫酷动画
 */

:root {
    --primary-color: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --secondary-color: #06b6d4;
    --accent-color: #f43f5e;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: rgba(30, 41, 59, 0.8);
    --bg-hover: rgba(99, 102, 241, 0.1);
    
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --border-color: rgba(99, 102, 241, 0.2);
    --shadow-color: rgba(0, 0, 0, 0.3);
    
    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #6366f1 0%, #06b6d4 100%);
    --gradient-3: linear-gradient(135deg, #f43f5e 0%, #f97316 100%);
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
}

[data-theme="light"] {
    --bg-primary: #f8fafc;
    --bg-secondary: #e2e8f0;
    --bg-card: rgba(255, 255, 255, 0.9);
    --bg-hover: rgba(99, 102, 241, 0.1);
    
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #64748b;
    
    --border-color: rgba(99, 102, 241, 0.2);
    --shadow-color: rgba(0, 0, 0, 0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

.gradient-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(-45deg, #0f172a, #1e1b4b, #0f172a, #164e63);
    background-size: 400% 400%;
    animation: gradientFlow 15s ease infinite;
    z-index: -2;
}

[data-theme="light"] .gradient-bg {
    background: linear-gradient(-45deg, #f8fafc, #e0e7ff, #f8fafc, #cffafe);
}

@keyframes gradientFlow {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary-light);
    border-radius: 50%;
    opacity: 0.3;
    animation: float 20s infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) translateX(0); opacity: 0.3; }
    25% { transform: translateY(-100px) translateX(50px); opacity: 0.6; }
    50% { transform: translateY(-200px) translateX(-30px); opacity: 0.3; }
    75% { transform: translateY(-100px) translateX(-50px); opacity: 0.6; }
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 100;
    animation: slideDown 0.5s ease;
}

@keyframes slideDown {
    from { transform: translateY(-100%); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.4rem;
    font-weight: 700;
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo i {
    font-size: 1.6rem;
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.github-btn, .theme-toggle, .refresh-btn, .settings-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.github-btn:hover, .theme-toggle:hover, .refresh-btn:hover, .settings-btn:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.refresh-btn:hover i {
    animation: spin 0.5s ease;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.main-content {
    padding: 80px 24px 100px;
    max-width: 1200px;
    margin: 0 auto;
}

.card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    margin-bottom: 24px;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 20px var(--shadow-color);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px var(--shadow-color);
    border-color: var(--primary-color);
}

.card h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.card h2 i {
    color: var(--primary-color);
}

.animate-fade-in {
    animation: fadeInUp 0.6s ease forwards;
    opacity: 0;
}

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

.connection-info {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 24px;
    align-items: start;
}

.qr-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.qr-placeholder {
    width: 150px;
    height: 150px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: var(--bg-secondary);
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-muted);
}

.qr-code {
    width: 150px;
    height: 150px;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 12px var(--shadow-color);
}

.addresses {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.address-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    font-size: 0.95rem;
}

.address-item i {
    color: var(--primary-color);
    width: 20px;
}

.address-item code {
    background: var(--bg-primary);
    padding: 4px 10px;
    border-radius: 6px;
    font-family: 'SF Mono', Monaco, 'Courier New', monospace;
    font-size: 0.85rem;
    color: var(--secondary-color);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.address-item code:hover {
    background: var(--primary-color);
    color: white;
}

.all-addresses {
    margin-top: 12px;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
}

.all-addresses h4 {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.all-addresses ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.all-addresses li {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--bg-primary);
    border-radius: 6px;
    font-size: 0.85rem;
}

.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 40px;
    text-align: center;
    transition: all var(--transition-normal);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.upload-area::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-2);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.upload-area:hover, .upload-area.drag-over {
    border-color: var(--primary-color);
    background: var(--bg-hover);
}

.upload-area.drag-over::before {
    opacity: 0.05;
}

.upload-icon {
    font-size: 4rem;
    color: var(--primary-color);
    margin-bottom: 16px;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.upload-text {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.upload-hint {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.upload-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.upload-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--gradient-2);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.upload-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.upload-progress {
    margin-top: 20px;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
}

.progress-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    font-size: 0.9rem;
}

#uploadSpeed {
    color: var(--success-color);
    font-weight: 500;
}

.progress-bar {
    height: 8px;
    background: var(--bg-primary);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-2);
    border-radius: 4px;
    transition: width 0.1s linear;
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.progress-percent {
    text-align: center;
    margin-top: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.upload-queue {
    margin-top: 16px;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
}

.upload-queue h4 {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

#queueList {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 200px;
    overflow-y: auto;
}

#queueList li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    background: var(--bg-primary);
    border-radius: 6px;
    font-size: 0.85rem;
}

#queueList li .status {
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 4px;
}

#queueList li .status.pending {
    background: var(--warning-color);
    color: white;
}

#queueList li .status.uploading {
    background: var(--primary-color);
    color: white;
}

#queueList li .status.done {
    background: var(--success-color);
    color: white;
}

.files-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
}

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

.action-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.action-btn.danger:hover {
    background: var(--danger-color);
    border-color: var(--danger-color);
}

.files-stats {
    display: flex;
    gap: 20px;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    margin-bottom: 16px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.files-stats strong {
    color: var(--primary-color);
}

.files-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 500px;
    overflow-y: auto;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: var(--text-muted);
    text-align: center;
}

.empty-state i {
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state p {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.empty-state span {
    font-size: 0.85rem;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.file-item:hover {
    background: var(--bg-hover);
    transform: translateX(4px);
}

.file-item.selected {
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid var(--primary-color);
}

.file-checkbox {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.file-item.selected .file-checkbox {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.file-checkbox i {
    font-size: 0.7rem;
    color: white;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.file-item.selected .file-checkbox i {
    opacity: 1;
}

.file-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border-radius: 8px;
    color: var(--primary-color);
    font-size: 1.2rem;
    flex-shrink: 0;
}

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

.file-name {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 4px;
}

.file-meta {
    display: flex;
    gap: 12px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.file-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

.file-action-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border: none;
    border-radius: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.file-action-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: scale(1.1);
}

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

.password-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    width: 90%;
    max-width: 400px;
    animation: scaleIn 0.3s ease;
}

@keyframes scaleIn {
    from { transform: scale(0.9); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.modal-content h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.modal-content h3 i {
    color: var(--primary-color);
}

.password-input {
    display: flex;
    gap: 8px;
}

.password-input input {
    flex: 1;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
    transition: border-color var(--transition-fast);
}

.password-input input:focus {
    border-color: var(--primary-color);
}

.password-input button {
    width: 48px;
    background: var(--gradient-2);
    border: none;
    border-radius: var(--border-radius);
    color: white;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.password-input button:hover {
    transform: scale(1.05);
}

.error-msg {
    margin-top: 12px;
    padding: 10px;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger-color);
    border-radius: var(--border-radius);
    color: var(--danger-color);
    font-size: 0.9rem;
    text-align: center;
}

.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    z-index: 1001;
}

.toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 20px var(--shadow-color);
    animation: slideInRight 0.3s ease;
    min-width: 250px;
}

@keyframes slideInRight {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.toast.success { border-left: 4px solid var(--success-color); }
.toast.error { border-left: 4px solid var(--danger-color); }
.toast.warning { border-left: 4px solid var(--warning-color); }
.toast.info { border-left: 4px solid var(--primary-color); }

.toast i {
    font-size: 1.1rem;
}

.toast.success i { color: var(--success-color); }
.toast.error i { color: var(--danger-color); }
.toast.warning i { color: var(--warning-color); }
.toast.info i { color: var(--primary-color); }

.toast-close {
    margin-left: auto;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    transition: color var(--transition-fast);
}

.toast-close:hover {
    color: var(--text-primary);
}

.footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px 24px;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--border-color);
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer a:hover {
    color: var(--primary-light);
}

.footer-links {
    margin-top: 6px;
    display: flex;
    justify-content: center;
    gap: 16px;
}

.hidden {
    display: none !important;
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-light);
}

@media (max-width: 768px) {
    .header {
        padding: 0 16px;
    }
    
    .logo span {
        display: none;
    }
    
    .github-btn span {
        display: none;
    }
    
    .main-content {
        padding: 72px 16px 120px;
    }
    
    .card {
        padding: 16px;
    }
    
    .connection-info {
        grid-template-columns: 1fr;
    }
    
    .qr-container {
        order: -1;
    }
    
    .upload-area {
        padding: 24px 16px;
    }
    
    .upload-buttons {
        flex-direction: column;
    }
    
    .upload-btn {
        width: 100%;
        justify-content: center;
    }
    
    .files-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .files-actions {
        width: 100%;
    }
    
    .action-btn {
        flex: 1;
        justify-content: center;
    }
    
    .file-item {
        flex-wrap: wrap;
    }
    
    .file-actions {
        width: 100%;
        justify-content: flex-end;
        margin-top: 8px;
        padding-top: 8px;
        border-top: 1px solid var(--border-color);
    }
    
    .footer {
        padding: 12px 16px;
    }
}

@media (max-width: 480px) {
    .files-stats {
        flex-direction: column;
        gap: 8px;
    }
    
    .file-meta {
        flex-direction: column;
        gap: 4px;
    }
}

.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.skeleton {
    background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--bg-hover) 50%, var(--bg-secondary) 75%);
    background-size: 200% 100%;
    animation: skeleton 1.5s ease-in-out infinite;
    border-radius: 4px;
}

@keyframes skeleton {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.wave-animation {
    position: relative;
    overflow: hidden;
}

.wave-animation::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    animation: wave 2s infinite;
}

@keyframes wave {
    0% { left: -100%; }
    100% { left: 100%; }
}

.glow {
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from { box-shadow: 0 0 5px var(--primary-color), 0 0 10px var(--primary-color); }
    to { box-shadow: 0 0 10px var(--primary-color), 0 0 20px var(--primary-color), 0 0 30px var(--primary-color); }
}

.download-notice {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(6, 182, 212, 0.1));
    border: 1px solid var(--primary-color);
    position: relative;
}

.notice-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-2);
    border-radius: 12px;
    flex-shrink: 0;
}

.notice-icon i {
    font-size: 1.5rem;
    color: white;
}

.notice-content {
    flex: 1;
}

.notice-content h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.notice-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.notice-content ul {
    list-style: none;
    margin-bottom: 16px;
}

.notice-content li {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 0;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.notice-content li i {
    color: var(--primary-color);
}

.notice-content li strong {
    color: var(--text-primary);
}

.download-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.download-btn.primary {
    background: var(--gradient-2);
    color: white;
}

.download-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

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

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

.notice-close {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: none;
    border-radius: 50%;
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.pwa-install-prompt {
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: 0 8px 30px var(--shadow-color);
    z-index: 999;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from { transform: translateX(-50%) translateY(100%); opacity: 0; }
    to { transform: translateX(-50%) translateY(0); opacity: 1; }
}

.pwa-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.pwa-content > i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.pwa-content div {
    display: flex;
    flex-direction: column;
}

.pwa-content strong {
    font-size: 0.95rem;
    color: var(--text-primary);
}

.pwa-content span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

#pwaInstall {
    padding: 8px 16px;
    background: var(--gradient-2);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

#pwaInstall:hover {
    transform: scale(1.05);
}

#pwaDismiss {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 50%;
    transition: all var(--transition-fast);
}

#pwaDismiss:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

@media (max-width: 768px) {
    .download-notice {
        flex-direction: column;
    }
    
    .download-buttons {
        flex-direction: column;
    }
    
    .download-btn {
        width: 100%;
        justify-content: center;
    }
    
    .pwa-install-prompt {
        left: 16px;
        right: 16px;
        transform: none;
        bottom: 90px;
    }
    
    @keyframes slideUp {
        from { transform: translateY(100%); opacity: 0; }
        to { transform: translateY(0); opacity: 1; }
    }
}