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

/* Default Theme - Minimal Soft */
:root {
    --primary: #7C9EA6;
    --primary-hover: #92B4BC;
    --background: #F5F5F0;
    --card-background: #FFFFFF;
    --card-hover: #F8F9FA;
    --text-primary: #2D3436;
    --text-secondary: #636E72;
    --text-muted: #95A5A6;
    --border: #DFE6E9;
    --accent: #A8D5BA;
    --error: #E17055;
    --shadow: rgba(0, 0, 0, 0.08);
    --floating-btn-background: rgba(255, 255, 255, 0.6);
    --floating-btn-hover: rgba(240, 240, 240, 0.8);
}

/* Dark Theme */
[data-theme="dark"] {
    --primary: #8B9DC3;
    --primary-hover: #A0B0D4;
    --background: #121212;
    --card-background: #1E1E1E;
    --card-hover: #282828;
    --text-primary: #FFFFFF;
    --text-secondary: #B3B3B3;
    --text-muted: #535353;
    --border: #282828;
    --accent: #8B9DC3;
    --error: #E17055;
    --shadow: rgba(0, 0, 0, 0.3);
    --floating-btn-background: rgba(40, 40, 40, 0.6);
    --floating-btn-hover: rgba(60, 60, 60, 0.8);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica', 'Arial', sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    transition: background 0.3s ease, color 0.3s ease;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    padding: 40px 20px;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: var(--text-primary);
    font-weight: 600;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

main {
    min-height: 400px;
}

.view {
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hidden {
    display: none !important;
}

/* Login View */
.login-card {
    background: var(--card-background);
    border-radius: 12px;
    padding: 60px 40px;
    text-align: center;
    max-width: 500px;
    margin: 40px auto;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.login-card h2 {
    margin-bottom: 15px;
    font-size: 2rem;
}

.login-card p {
    color: var(--text-secondary);
    margin-bottom: 30px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: 500px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: scale(1.02);
}

.btn-primary:active {
    transform: scale(0.98);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--text-primary);
}

.btn-tertiary {
    background: transparent;
    color: var(--text-secondary);
    border: 2px solid var(--border);
    padding: 10px 20px;
    font-size: 0.9rem;
}

.btn-tertiary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-tertiary.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* Dashboard View */
.user-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    background: var(--background);
    padding: 0px;
    border-radius: 0px;
    margin-bottom: 100px;
}

.site-info h1 {
    font-size: 1.5rem;
    margin-bottom: 5px;
    color: var(--text-primary);
    font-weight: 600;
}

.site-info .subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
}

.user-info > div {
    flex: 1;
}

.user-info h2 {
    margin-bottom: 5px;
}

.user-info p {
    color: var(--text-secondary);
}

.user-actions {
    display: flex;
    gap: 12px;
    align-items: center;
    justify-content: flex-end;
}

.theme-toggle {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    user-select: none;
}

.theme-toggle input {
    display: none;
}

.toggle-slider {
    position: relative;
    width: 48px;
    height: 24px;
    background: var(--border);
    border-radius: 24px;
    transition: background 0.3s ease;
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: white;
    top: 3px;
    left: 3px;
    transition: transform 0.3s ease;
}

.theme-toggle input:checked + .toggle-slider {
    background: var(--primary);
}

.theme-toggle input:checked + .toggle-slider::before {
    transform: translateX(24px);
}

.toggle-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Success Message */
.success-message {
    background: var(--card-background);
    border-radius: 12px;
    padding: 40px;
    text-align: center;
    border: 2px solid var(--primary);
}

.success-message h3 {
    color: var(--primary);
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.connection-details {
    margin-top: 30px;
    text-align: left;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.connection-details p {
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
}

.connection-details p:last-child {
    border-bottom: none;
}

.status-active {
    color: var(--primary);
    font-weight: 600;
}

/* Error Message */
.error {
    background: rgba(226, 33, 52, 0.1);
    border: 1px solid var(--error-red);
    color: var(--error-red);
    padding: 15px;
    border-radius: 8px;
    margin-top: 20px;
}

/* Loading */
.loading {
    text-align: center;
    padding: 60px 20px;
}

.spinner {
    width: 50px;
    height: 50px;
    margin: 0 auto 20px;
    border: 4px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Time Range Selector */
.time-range-selector {
    background: transparent;
    border-radius: 12px;
    padding: 0px;
    margin-bottom: 30px;
    text-align: center;
    position: sticky;
    top: 20px;
    z-index: 100;
    border: 0px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.time-range-selector h3 {
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.time-range-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.display-view-btn {
    display: none;
}

.time-range-btn {
    padding: 12px 24px;
    background: var(--floating-btn-background);
    backdrop-filter: blur(10px);
    border: 2px solid var(--border);
    border-radius: 500px;
    color: var(--text-primary);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.time-range-btn:hover {
    background: var(--floating-btn-hover);
    border-color: var(--primary);
    color: var(--primary);
}

.time-range-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--text-primary);
}

/* Stats Sections */
.stats-section {
    margin-bottom: 50px;
}

.section-header {
    font-size: 1rem;
    margin-bottom: 25px;
    padding: 15px;
    cursor: pointer;
    user-select: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--card-background);
    border-radius: 8px;
    transition: background 0.2s ease;
}

.section-header:hover {
    background: var(--card-hover);
}

.collapse-icon {
    font-size: 1.5rem;
    font-weight: normal;
    color: var(--primary);
    transition: transform 0.3s ease;
}

.stats-section.collapsed .collapse-icon {
    transform: rotate(90deg);
}

.stats-section.collapsed .section-content {
    display: none;
}

/* Grid Layout */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 20px;
}

/* List Layout */
.list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.list-row {
    background: var(--card-background);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 6px 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.2s ease;
    cursor: pointer;
}

.list-row:hover {
    border-color: var(--primary);
    box-shadow: 0 2px 8px var(--shadow);
}

.list-row.purchased {
    border-color: var(--accent);
    border-width: 2px;
}

.list-row-rank {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--primary);
    min-width: 25px;
    text-align: center;
}

.list-row-image {
    width: 32px;
    height: 32px;
    border-radius: 4px;
    object-fit: cover;
}

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

.list-row-title {
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 2px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.list-row-subtitle {
    color: var(--text-secondary);
    font-size: 0.75rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.list-row-meta {
    display: flex;
    gap: 15px;
    align-items: center;
    margin-right: 10px;
}

.list-row-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 60px;
}

.list-row-stat-label {
    font-size: 0.6rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.list-row-stat-value {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary);
}

.list-row-actions {
    display: flex;
    gap: 8px;
}

.list-row-actions .purchase-btn {
    padding: 4px 10px;
    font-size: 0.65rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    white-space: nowrap;
}

.list-row-actions .purchase-btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* Artist/Track Card */
.card {
    background: var(--card-background);
    border-radius: 8px;
    padding: 15px;
    transition: all 0.3s ease;
    position: relative;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border);
    box-shadow: 0 1px 3px var(--shadow);
    overflow: hidden;
}

.card:hover {
    box-shadow: 0 4px 12px var(--shadow);
    border-color: var(--primary);
}

.card.purchased {
    border-color: var(--accent);
    border-width: 2px;
}

.card-content {
    cursor: pointer;
    flex: 1;
}

.card-image {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 4px;
    object-fit: cover;
    margin-bottom: 12px;
}

.artist-card.shape-1 .card-image {
    clip-path: polygon(30% 0%, 70% 0%, 100% 30%, 100% 70%, 70% 100%, 30% 100%, 0% 70%, 0% 30%);
}

.artist-card.shape-2 .card-image {
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
}

.artist-card.shape-3 .card-image {
    clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
}

.artist-card.shape-4 .card-image {
    clip-path: polygon(20% 0%, 80% 0%, 100% 20%, 100% 80%, 80% 100%, 20% 100%, 0% 80%, 0% 20%);
}

.card-title {
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 5px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-align: center;
}

.card-subtitle {
    color: var(--text-secondary);
    font-size: 0.85rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-align: center;
}

.card-meta {
    color: var(--primary);
    font-size: 0.75rem;
    margin-top: 4px;
    font-weight: 500;
    text-align: center;
}

.card-rank {
    position: absolute;
    top: 0px;
    left: 0px;
    background: rgba(0, 0, 0, 0.8);
    color: var(--primary);
    font-weight: 700;
    font-size: 0.7rem;
    padding: 4px 10px;
    border-bottom-right-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Purchase Links */
.purchase-links {
    display: flex;
    margin-top: 12px;
    margin-left: -15px;
    margin-right: -15px;
    margin-bottom: -15px;
    border-top: 1px solid var(--border);
}

.purchase-btn {
    flex: 1;
    min-width: 0;
    padding: 8px 2px;
    font-size: 0.65rem;
    font-weight: 400;
    background: transparent;
    border: 0px solid var(--border);
    cursor: pointer;
    transition: all 0.2s ease;
    text-transform: uppercase;
    letter-spacing: 0.2px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-secondary);
}

.purchase-links .purchase-btn:not(:first-child) {
    border-left: 1px solid var(--border);
}

.purchase-btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.btn-label {
    display: inline-block;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-state h3 {
    margin-bottom: 10px;
}

/* Footer */
footer {
    text-align: center;
    padding: 40px 20px;
    color: var(--border);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    .login-card {
        padding: 40px 20px;
    }

    .user-info {
        text-align: center;
        gap: 15px;
        margin-bottom: 40px;;
    }

    .site-info {
        text-align: center;
    }

    .user-actions {
        flex-wrap: wrap;
    }

    .connection-details {
        text-align: center;
    }

    .grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 15px;
    }

    .stats-section h2 {
        font-size: 1.5rem;
    }

    .time-range-buttons {
        width: 100%;
        flex-wrap: nowrap;
    }

    .time-range-btn {
        width: 100%;
        padding: 4px 12px;
    }

    .purchase-btn {
        font-size: 0.55rem;
        padding: 6px 1px;
        letter-spacing: 0.1px;
        font-weight: 400;
    }

    .purchase-links {
        gap: 3px;
    }

    .time-range-selector {
        flex-direction: column;
        gap: 15px;
    }

    .display-view-btn {
        display: none;
    }

    .list-row {
        flex-wrap: wrap;
        gap: 10px;
    }

    .list-row-meta {
        order: 3;
        width: 100%;
        justify-content: center;
        margin-right: 0;
        margin-top: 10px;
        padding-top: 10px;
        border-top: 1px solid var(--border);
    }

    .list-row-actions {
        order: 4;
        width: 100%;
        justify-content: center;
    }

    .list-row-actions .purchase-btn {
        flex: 1;
    }
}

/* Profile Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: var(--card-background);
    border-radius: 12px;
    padding: 40px 30px;
    max-width: 400px;
    width: 90%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease-out;
    z-index: 1001;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: transparent;
    border: none;
    font-size: 2rem;
    color: var(--text-secondary);
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s ease;
}

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

.modal-content h2 {
    margin-bottom: 30px;
    font-size: 1.5rem;
    text-align: center;
}

.modal-setting {
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--border);
}

.modal-setting .theme-toggle {
    width: 100%;
    justify-content: space-between;
}

.modal-actions {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.btn-danger {
    border-color: var(--error);
    color: var(--error);
}

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

/* Avatar clickable state */
.avatar {
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.avatar:hover {
    transform: scale(1.05);
    box-shadow: 0 2px 8px var(--shadow);
}

/* Purchase Icon Overlay */
.purchase-icon {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.7);
    border: 2px solid rgba(255, 255, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    z-index: 10;
    color: rgba(255, 255, 255, 0.5);
}

.purchase-icon:hover {
    background: rgba(0, 0, 0, 0.9);
    border-color: rgba(255, 255, 255, 0.6);
    transform: scale(1.1);
}

.purchase-icon.purchased {
    display: none;
}

.purchase-icon svg {
    opacity: 0.7;
}

.purchase-icon.purchased svg {
    opacity: 1;
}

/* Purchased Badge */
.purchased-badge {
    position: absolute;
    top: 0px;
    right: 0px;
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    background: var(--accent);
    color: white;
    font-size: 0.7rem;
    font-weight: 600;
    border-bottom-left-radius: 12px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    z-index: 10;
    cursor: pointer;
    transition: all 0.2s ease;
}

.purchased-badge svg {
    width: 12px;
    height: 12px;
}

/* Mobile responsive modal */
@media (max-width: 768px) {
    .modal-content {
        padding: 30px 20px;
    }
}