:root {
    --spotify-green: #1DB954;
    --spotify-green-hover: #1ed760;
    --spotify-black: #191414;
    --bg-primary: #121212;
    --bg-secondary: #1e1e1e;
    --bg-card: #282828;
    --bg-card-hover: #333333;
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-muted: #727272;
    --border-color: #404040;
    --error-color: #e74c3c;
    --success-color: #1DB954;
    --warning-color: #f39c12;
    --transition-fast: 0.15s ease;
    --transition-medium: 0.3s ease;
    --border-radius: 8px;
    --border-radius-lg: 12px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: linear-gradient(135deg, var(--spotify-black) 0%, var(--bg-primary) 100%);
}

.login-card {
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    padding: 48px;
    max-width: 480px;
    width: 100%;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.logo-section {
    margin-bottom: 24px;
}

.logo-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    color: var(--spotify-green);
}

.logo-icon svg {
    width: 100%;
    height: 100%;
}

.app-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

.app-description {
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 32px;
    line-height: 1.7;
}

.features {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 32px;
    text-align: left;
}

.feature {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    font-size: 14px;
}

.feature-icon {
    font-size: 20px;
}

.spotify-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background-color: var(--spotify-green);
    color: var(--spotify-black);
    font-size: 16px;
    font-weight: 600;
    padding: 16px 32px;
    border-radius: 50px;
    text-decoration: none;
    transition: all var(--transition-fast);
    width: 100%;
}

.spotify-button:hover {
    background-color: var(--spotify-green-hover);
    transform: scale(1.02);
}

.spotify-icon {
    width: 24px;
    height: 24px;
}

.disclaimer {
    margin-top: 24px;
    font-size: 12px;
    color: var(--text-muted);
}

.dashboard {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--spotify-green);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.user-name {
    color: var(--text-secondary);
    font-size: 14px;
}

.logout-btn {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    padding: 8px 16px;
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
}

.logout-btn:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

.main-content {
    flex: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px;
    width: 100%;
}

.grid-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 768px) {
    .grid-layout {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1200px) {
    .grid-layout {
        grid-template-columns: repeat(3, 1fr);
    }
}

.card {
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    border: 1px solid var(--border-color);
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.card-description {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.search-textarea {
    width: 100%;
    min-height: 100px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 12px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 14px;
    resize: vertical;
    transition: border-color var(--transition-fast);
}

.search-textarea:focus {
    outline: none;
    border-color: var(--spotify-green);
}

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

.search-controls {
    display: flex;
    gap: 12px;
    margin-top: 12px;
    align-items: center;
    flex-wrap: wrap;
}

.select-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
}

.select-wrapper label {
    font-size: 14px;
    color: var(--text-secondary);
}

.select-input {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 10px 12px;
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
    min-width: 120px;
}

.select-input:focus {
    outline: none;
    border-color: var(--spotify-green);
}

.btn {
    padding: 10px 20px;
    border-radius: var(--border-radius);
    font-size: 14px;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--spotify-green);
    color: var(--spotify-black);
}

.btn-primary:hover:not(:disabled) {
    background: var(--spotify-green-hover);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--spotify-green);
    color: var(--spotify-green);
}

.btn-secondary:hover:not(:disabled) {
    background: rgba(29, 185, 84, 0.1);
}

.btn-danger {
    background: transparent;
    border: 1px solid var(--error-color);
    color: var(--error-color);
    padding: 6px 12px;
    font-size: 12px;
}

.btn-danger:hover:not(:disabled) {
    background: rgba(231, 76, 60, 0.1);
}

.search-results {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.results-title {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 16px;
}

.tracks-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 300px;
    overflow-y: auto;
    margin-bottom: 16px;
}

.track-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    gap: 12px;
}

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

.track-name {
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.track-artist {
    font-size: 12px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.add-to-playlist-section {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.add-to-playlist-section .select-input {
    flex: 1;
    min-width: 150px;
}

.playlists-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 200px;
    overflow-y: auto;
    margin-bottom: 24px;
}

.playlist-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    transition: background var(--transition-fast);
}

.playlist-item:hover {
    background: var(--bg-card-hover);
}

.playlist-name {
    font-size: 14px;
    font-weight: 500;
}

.playlist-tracks {
    font-size: 12px;
    color: var(--text-secondary);
}

.create-playlist-form,
.schedule-form {
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
}

.form-title {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 12px;
    color: var(--text-secondary);
}

.text-input {
    width: 100%;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 10px 12px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 14px;
    margin-bottom: 12px;
    transition: border-color var(--transition-fast);
}

.text-input:focus {
    outline: none;
    border-color: var(--spotify-green);
}

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

.textarea-small {
    min-height: 60px;
    resize: vertical;
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    cursor: pointer;
}

.toggle-checkbox {
    width: 18px;
    height: 18px;
    accent-color: var(--spotify-green);
    cursor: pointer;
}

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

.scheduled-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 200px;
    overflow-y: auto;
    margin-bottom: 24px;
}

.schedule-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 12px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    gap: 12px;
}

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

.schedule-query {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 4px;
}

.schedule-details {
    font-size: 12px;
    color: var(--text-secondary);
}

.schedule-options {
    display: flex;
    gap: 16px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.loading-spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-color);
    border-top-color: var(--spotify-green);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 20px auto;
}

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

.hidden {
    display: none !important;
}

.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    padding: 16px 24px;
    border-radius: var(--border-radius);
    font-size: 14px;
    font-weight: 500;
    z-index: 1000;
    animation: slideIn 0.3s ease;
    max-width: 400px;
}

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

.toast.success {
    background: var(--success-color);
    color: var(--spotify-black);
}

.toast.error {
    background: var(--error-color);
    color: var(--text-primary);
}

.toast.warning {
    background: var(--warning-color);
    color: var(--spotify-black);
}

.empty-state {
    text-align: center;
    padding: 24px;
    color: var(--text-muted);
    font-size: 14px;
}

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

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

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

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

@media (max-width: 640px) {
    .login-card {
        padding: 32px 24px;
    }
    
    .header-content {
        padding: 12px 16px;
    }
    
    .header-title {
        font-size: 16px;
    }
    
    .main-content {
        padding: 16px;
    }
    
    .card {
        padding: 20px;
    }
    
    .toast {
        left: 16px;
        right: 16px;
        bottom: 16px;
    }
}

/* System Status Section */
.status-section {
    background: var(--bg-card);
}

.status-content {
    padding: 8px 0;
}

.status-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 20px;
}

.status-item {
    background: var(--bg-secondary);
    padding: 12px 16px;
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.status-label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
}

.status-section-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 12px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.recent-runs {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.run-item {
    background: var(--bg-secondary);
    padding: 10px 14px;
    border-radius: var(--border-radius);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    border-left: 3px solid var(--text-muted);
}

.run-item.success {
    border-left-color: var(--success-color);
}

.run-item.warning {
    border-left-color: var(--warning-color);
}

.run-time {
    color: var(--text-secondary);
}

.run-details {
    color: var(--text-primary);
    font-weight: 500;
}

.status-timestamp {
    margin-top: 16px;
    font-size: 11px;
    color: var(--text-muted);
    text-align: right;
}

@media (max-width: 640px) {
    .status-grid {
        grid-template-columns: 1fr;
    }
}