/**
 * IMUP3 Web Styles
 * 
 * Aligned with IMU ecosystem branding
 * Colors: Dark theme with gold (#e6ce68) accents
 */

/* ============================================
   CSS Variables - IMU Ecosystem Theme
   ============================================ */
:root {
    /* Core Colors */
    --imup3-bg: #0a0b0e;
    --imup3-bg-secondary: #111318;
    --imup3-bg-card: #16181d;
    --imup3-bg-elevated: #1a1c22;
    
    /* Text */
    --imup3-text: #ffffff;
    --imup3-text-secondary: #a0a0a0;
    --imup3-text-muted: #666666;
    
    /* Accent - IMU Gold */
    --imup3-accent: #e6ce68;
    --imup3-accent-hover: #f0da7a;
    --imup3-accent-dark: #b39b3a;
    
    /* Status */
    --imup3-success: #4ade80;
    --imup3-error: #f87171;
    --imup3-warning: #fbbf24;
    
    /* Borders */
    --imup3-border: #2a2d35;
    --imup3-border-light: #3a3d45;
    
    /* Shadows */
    --imup3-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    --imup3-shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.6);
    
    /* Spacing */
    --imup3-radius: 12px;
    --imup3-radius-sm: 8px;
    --imup3-radius-lg: 20px;
}

/* ============================================
   Base Styles
   ============================================ */
.imup3-landing,
.imup3-browse,
.imup3-premium,
.imup3-library,
.imup3-nfts-page {
    background: var(--imup3-bg);
    color: var(--imup3-text);
    min-height: 100vh;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* ============================================
   Buttons
   ============================================ */
.imup3-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--imup3-radius);
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
}

.imup3-btn-primary {
    background: var(--imup3-accent);
    color: #000;
}

.imup3-btn-primary:hover {
    background: var(--imup3-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(230, 206, 104, 0.3);
}

.imup3-btn-secondary {
    background: var(--imup3-bg-elevated);
    color: var(--imup3-text);
    border: 1px solid var(--imup3-border);
}

.imup3-btn-secondary:hover {
    background: var(--imup3-border);
    border-color: var(--imup3-accent);
}

/* ============================================
   Badges
   ============================================ */
.imup3-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.imup3-badge-success {
    background: rgba(74, 222, 128, 0.2);
    color: var(--imup3-success);
}

/* ============================================
   Hero Section
   ============================================ */
.imup3-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    padding: 80px 60px;
    min-height: 80vh;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.imup3-hero-badge {
    display: inline-block;
    background: var(--imup3-bg-elevated);
    border: 1px solid var(--imup3-accent);
    color: var(--imup3-accent);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.imup3-hero-title {
    font-size: 64px;
    font-weight: 800;
    line-height: 1.1;
    margin: 0 0 20px;
}

.imup3-logo-text {
    color: var(--imup3-accent);
    display: block;
}

.imup3-hero-subtitle {
    color: var(--imup3-text);
    display: block;
    font-size: 48px;
    font-weight: 300;
}

.imup3-hero-desc {
    font-size: 20px;
    color: var(--imup3-text-secondary);
    margin-bottom: 40px;
    line-height: 1.6;
}

.imup3-hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Phone Mockup */
.imup3-hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.imup3-phone-mockup {
    width: 300px;
    height: 600px;
    background: var(--imup3-bg-card);
    border-radius: 40px;
    padding: 12px;
    box-shadow: var(--imup3-shadow-lg);
    border: 3px solid var(--imup3-border);
}

.imup3-phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, var(--imup3-bg) 0%, var(--imup3-bg-secondary) 100%);
    border-radius: 32px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 20px;
}

.imup3-mini-player {
    background: var(--imup3-bg-elevated);
    border-radius: 16px;
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.imup3-mini-art {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--imup3-accent) 0%, var(--imup3-accent-dark) 100%);
    border-radius: 8px;
}

.imup3-mini-info {
    flex: 1;
}

.imup3-mini-title {
    font-weight: 600;
    font-size: 14px;
}

.imup3-mini-artist {
    color: var(--imup3-text-secondary);
    font-size: 12px;
}

.imup3-mini-controls {
    display: flex;
    gap: 3px;
    align-items: flex-end;
    height: 24px;
}

.imup3-eq-bar {
    width: 4px;
    background: var(--imup3-accent);
    border-radius: 2px;
    animation: eq 0.5s ease-in-out infinite alternate;
}

.imup3-eq-bar:nth-child(1) { height: 12px; animation-delay: 0s; }
.imup3-eq-bar:nth-child(2) { height: 20px; animation-delay: 0.1s; }
.imup3-eq-bar:nth-child(3) { height: 16px; animation-delay: 0.2s; }

@keyframes eq {
    to { height: 8px; }
}

/* ============================================
   Features Section
   ============================================ */
.imup3-features {
    padding: 80px 60px;
    max-width: 1200px;
    margin: 0 auto;
}

.imup3-section-title {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 48px;
}

.imup3-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.imup3-feature-card {
    background: var(--imup3-bg-card);
    border: 1px solid var(--imup3-border);
    border-radius: var(--imup3-radius);
    padding: 32px;
    text-align: center;
    transition: all 0.3s ease;
}

.imup3-feature-card:hover {
    border-color: var(--imup3-accent);
    transform: translateY(-4px);
}

.imup3-feature-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.imup3-feature-card h3 {
    font-size: 20px;
    margin-bottom: 12px;
}

.imup3-feature-card p {
    color: var(--imup3-text-secondary);
    line-height: 1.6;
}

/* ============================================
   Download Section
   ============================================ */
.imup3-download {
    padding: 80px 60px;
    text-align: center;
    background: var(--imup3-bg-secondary);
}

.imup3-download-options {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.imup3-store-badge img {
    height: 60px;
    width: auto;
}

.imup3-coming-soon {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--imup3-text-secondary);
    padding: 12px 20px;
    background: var(--imup3-bg-elevated);
    border-radius: var(--imup3-radius);
}

.imup3-download-note {
    color: var(--imup3-text-secondary);
}

.imup3-download-note a {
    color: var(--imup3-accent);
}

/* ============================================
   Browse Page
   ============================================ */
.imup3-browse {
    padding: 24px;
}

.imup3-browse-nav {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--imup3-border);
}

.imup3-nav-item {
    padding: 10px 20px;
    background: var(--imup3-bg-card);
    border: 1px solid var(--imup3-border);
    border-radius: 24px;
    color: var(--imup3-text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s ease;
}

.imup3-nav-item:hover,
.imup3-nav-item.active {
    background: var(--imup3-accent);
    border-color: var(--imup3-accent);
    color: #000;
}

/* Search */
.imup3-search-wrap {
    position: relative;
    margin-bottom: 32px;
    max-width: 500px;
}

.imup3-search-input {
    width: 100%;
    padding: 14px 20px;
    background: var(--imup3-bg-card);
    border: 1px solid var(--imup3-border);
    border-radius: var(--imup3-radius);
    color: var(--imup3-text);
    font-size: 16px;
    outline: none;
    transition: border-color 0.2s;
}

.imup3-search-input:focus {
    border-color: var(--imup3-accent);
}

.imup3-search-input::placeholder {
    color: var(--imup3-text-muted);
}

.imup3-search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--imup3-bg-elevated);
    border: 1px solid var(--imup3-border);
    border-radius: var(--imup3-radius);
    margin-top: 8px;
    max-height: 400px;
    overflow-y: auto;
    display: none;
    z-index: 100;
}

.imup3-search-results.active {
    display: block;
}

/* Browse Content Grid */
.imup3-browse-content {
    margin-bottom: 40px;
}

.imup3-row {
    margin-bottom: 40px;
}

.imup3-row-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
}

.imup3-tracks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 20px;
}

.imup3-track-card {
    background: var(--imup3-bg-card);
    border-radius: var(--imup3-radius);
    overflow: hidden;
    transition: all 0.2s ease;
    cursor: pointer;
}

.imup3-track-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--imup3-shadow);
}

.imup3-track-art {
    aspect-ratio: 1;
    background: var(--imup3-bg-elevated);
    position: relative;
}

.imup3-track-art img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.imup3-track-play {
    position: absolute;
    bottom: 8px;
    right: 8px;
    width: 48px;
    height: 48px;
    background: var(--imup3-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: translateY(8px);
    transition: all 0.2s ease;
}

.imup3-track-card:hover .imup3-track-play {
    opacity: 1;
    transform: translateY(0);
}

.imup3-track-info {
    padding: 12px;
}

.imup3-track-title {
    font-weight: 600;
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.imup3-track-artist {
    color: var(--imup3-text-secondary);
    font-size: 14px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Lock indicator */
.imup3-track-locked {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(0, 0, 0, 0.7);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
}

/* Browse CTA */
.imup3-browse-cta {
    background: var(--imup3-bg-card);
    border: 1px solid var(--imup3-border);
    border-radius: var(--imup3-radius);
    padding: 24px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.imup3-browse-cta p {
    margin: 0;
    font-size: 18px;
}

/* ============================================
   Premium Page
   ============================================ */
.imup3-premium {
    padding: 40px 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.imup3-premium-header {
    text-align: center;
    margin-bottom: 48px;
}

.imup3-premium-header h1 {
    font-size: 40px;
    margin-bottom: 12px;
}

.imup3-premium-header p {
    color: var(--imup3-text-secondary);
    font-size: 18px;
}

/* Login Prompt */
.imup3-login-prompt {
    text-align: center;
    padding: 60px;
    background: var(--imup3-bg-card);
    border-radius: var(--imup3-radius);
}

.imup3-login-note {
    margin-top: 16px;
    color: var(--imup3-text-secondary);
}

.imup3-login-note a {
    color: var(--imup3-accent);
}

/* Bundles */
.imup3-bundles {
    margin-bottom: 60px;
}

.imup3-bundles h2 {
    font-size: 28px;
    margin-bottom: 24px;
}

.imup3-bundles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.imup3-bundle-card {
    background: var(--imup3-bg-card);
    border: 1px solid var(--imup3-border);
    border-radius: var(--imup3-radius);
    padding: 32px;
    position: relative;
    display: flex;
    flex-direction: column;
}

.imup3-bundle-featured {
    border-color: var(--imup3-accent);
    box-shadow: 0 0 30px rgba(230, 206, 104, 0.15);
}

.imup3-bundle-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--imup3-accent);
    color: #000;
    padding: 4px 16px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
}

.imup3-bundle-name {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 8px;
}

.imup3-bundle-price {
    font-size: 36px;
    font-weight: 800;
    color: var(--imup3-accent);
    margin-bottom: 24px;
}

.imup3-bundle-price span {
    font-size: 16px;
    font-weight: 400;
    color: var(--imup3-text-secondary);
}

.imup3-bundle-features {
    list-style: none;
    padding: 0;
    margin: 0 0 24px;
    flex: 1;
}

.imup3-bundle-features li {
    padding: 8px 0;
    border-bottom: 1px solid var(--imup3-border);
}

.imup3-bundle-features li.imup3-muted {
    color: var(--imup3-text-muted);
}

.imup3-bundle-current {
    text-align: center;
    padding: 12px;
    background: var(--imup3-bg-elevated);
    border-radius: var(--imup3-radius-sm);
    color: var(--imup3-text-secondary);
}

/* SKUs Grid */
.imup3-individual h2 {
    font-size: 28px;
    margin-bottom: 8px;
}

.imup3-section-desc {
    color: var(--imup3-text-secondary);
    margin-bottom: 24px;
}

.imup3-skus-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.imup3-sku-card {
    background: var(--imup3-bg-card);
    border: 1px solid var(--imup3-border);
    border-radius: var(--imup3-radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.imup3-sku-image {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
}

.imup3-sku-info {
    padding: 16px;
    flex: 1;
}

.imup3-sku-info h3 {
    margin: 0 0 8px;
}

.imup3-sku-info p {
    color: var(--imup3-text-secondary);
    font-size: 14px;
    margin-bottom: 12px;
}

.imup3-sku-price {
    font-size: 24px;
    font-weight: 700;
    color: var(--imup3-accent);
}

.imup3-sku-card .imup3-btn,
.imup3-sku-owned {
    margin: 0 16px 16px;
}

/* Wallet Section */
.imup3-wallet-section {
    margin-top: 60px;
    padding: 40px;
    background: var(--imup3-bg-card);
    border-radius: var(--imup3-radius);
    text-align: center;
}

.imup3-wallet-section h2 {
    margin-bottom: 12px;
}

.imup3-wallet-section p {
    color: var(--imup3-text-secondary);
    margin-bottom: 20px;
}

.imup3-wallet-connected {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.imup3-wallet-connected code {
    background: var(--imup3-bg-elevated);
    padding: 8px 16px;
    border-radius: var(--imup3-radius-sm);
    font-family: monospace;
}

.imup3-link {
    color: var(--imup3-accent);
}

/* ============================================
   Library Page
   ============================================ */
.imup3-library {
    padding: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.imup3-login-required {
    text-align: center;
    padding: 80px 24px;
}

.imup3-library-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 32px;
    border-bottom: 1px solid var(--imup3-border);
    padding-bottom: 16px;
}

.imup3-tab {
    padding: 10px 24px;
    background: transparent;
    border: none;
    color: var(--imup3-text-secondary);
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--imup3-radius-sm);
    transition: all 0.2s ease;
}

.imup3-tab:hover {
    color: var(--imup3-text);
    background: var(--imup3-bg-card);
}

.imup3-tab.active {
    background: var(--imup3-accent);
    color: #000;
}

.imup3-tab-content {
    display: none;
}

.imup3-tab-content.active {
    display: block;
}

.imup3-library-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.imup3-list-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px;
    background: var(--imup3-bg-card);
    border-radius: var(--imup3-radius-sm);
    cursor: pointer;
    transition: background 0.2s ease;
}

.imup3-list-item:hover {
    background: var(--imup3-bg-elevated);
}

.imup3-list-art {
    width: 56px;
    height: 56px;
    background: var(--imup3-bg-elevated);
    border-radius: 8px;
    overflow: hidden;
}

.imup3-list-art img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.imup3-list-info {
    flex: 1;
    min-width: 0;
}

.imup3-list-title {
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.imup3-list-subtitle {
    color: var(--imup3-text-secondary);
    font-size: 14px;
}

.imup3-playlists-header {
    margin-bottom: 20px;
}

/* NFTs Grid */
.imup3-nfts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
}

.imup3-nft-card {
    background: var(--imup3-bg-card);
    border: 1px solid var(--imup3-border);
    border-radius: var(--imup3-radius);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.2s ease;
}

.imup3-nft-card:hover {
    border-color: var(--imup3-accent);
    transform: translateY(-4px);
}

/* ============================================
   NFT Collections Page
   ============================================ */
.imup3-nfts-page {
    padding: 40px 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.imup3-nfts-header {
    text-align: center;
    margin-bottom: 48px;
}

.imup3-nfts-header h1 {
    font-size: 40px;
    margin-bottom: 12px;
}

.imup3-nfts-header p {
    color: var(--imup3-text-secondary);
    font-size: 18px;
}

.imup3-collections-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
    margin-bottom: 60px;
}

.imup3-collection-card {
    background: var(--imup3-bg-card);
    border: 1px solid var(--imup3-border);
    border-radius: var(--imup3-radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.imup3-collection-art {
    height: 160px;
    background: linear-gradient(135deg, var(--imup3-accent) 0%, var(--imup3-accent-dark) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.imup3-collection-icon {
    font-size: 64px;
}

.imup3-collection-info {
    padding: 20px;
    flex: 1;
}

.imup3-collection-info h3 {
    margin: 0 0 8px;
    font-size: 20px;
}

.imup3-collection-info p {
    color: var(--imup3-text-secondary);
    font-size: 14px;
    margin-bottom: 12px;
}

.imup3-collection-meta {
    display: flex;
    gap: 12px;
    font-size: 12px;
    color: var(--imup3-text-muted);
}

.imup3-collection-meta code {
    background: var(--imup3-bg-elevated);
    padding: 2px 8px;
    border-radius: 4px;
}

.imup3-collection-card .imup3-btn {
    margin: 0 20px 20px;
}

.imup3-nft-cta {
    background: var(--imup3-bg-card);
    border-radius: var(--imup3-radius);
    padding: 48px;
    text-align: center;
}

.imup3-nft-cta h2 {
    margin-bottom: 12px;
}

.imup3-nft-cta p {
    color: var(--imup3-text-secondary);
    margin-bottom: 24px;
}

/* ============================================
   Loading States
   ============================================ */
.imup3-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px;
    color: var(--imup3-text-secondary);
}

.imup3-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--imup3-border);
    border-top-color: var(--imup3-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 12px;
}

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

.imup3-empty-state {
    text-align: center;
    padding: 60px;
    color: var(--imup3-text-secondary);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
    .imup3-hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 60px 24px;
    }
    
    .imup3-hero-title {
        font-size: 48px;
    }
    
    .imup3-hero-subtitle {
        font-size: 36px;
    }
    
    .imup3-hero-buttons {
        justify-content: center;
    }
    
    .imup3-hero-visual {
        display: none;
    }
    
    .imup3-features,
    .imup3-download {
        padding: 60px 24px;
    }
}

@media (max-width: 640px) {
    .imup3-hero-title {
        font-size: 36px;
    }
    
    .imup3-hero-subtitle {
        font-size: 28px;
    }
    
    .imup3-section-title {
        font-size: 28px;
    }
    
    .imup3-bundles-grid {
        grid-template-columns: 1fr;
    }
    
    .imup3-browse-nav {
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 12px;
    }
    
    .imup3-nav-item {
        white-space: nowrap;
    }
    
    .imup3-tracks-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
    
    .imup3-library-tabs {
        overflow-x: auto;
        flex-wrap: nowrap;
    }
    
    .imup3-tab {
        white-space: nowrap;
    }
}