:root {
    --primary-color: #000;
    --secondary-color: #fff;
    --border-color: #e0e0e0;
    --text-color: #333;
    --background-color: #fff;
    --secondary-background-color: #f0f0f0;
    --font-family: 'Instrument Sans', -system-ui, Arial, sans-serif;
    --font-size: 16px;
    --line-height: 1.5;

    --spacer-md: 16px;
    --spacer-lg: 32px;
}

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size);
    line-height: var(--line-height);
    color: var(--text-color);
    background-color: var(--background-color);
}

/* base elements */

    a {
        color: var(--primary-color);
        text-decoration: none;
        font-size: 14px;
        font-weight: 500;
    }

    a:hover {
        text-decoration: underline;
    }

    input, textarea {
        padding: 8px;
        border: 1px solid var(--border-color);
        border-radius: 4px;
        font-size: 14px;
        font-family: var(--font-family);
        width: 100%;
    }

    button {
        padding: 8px 16px;
        border: none;
        border-radius: 4px;
        font-size: 14px;
        font-weight: 500;
        cursor: pointer;
        background-color: var(--primary-color);
        color: var(--secondary-color);
    }

    hr {
        margin: var(--spacer-lg) 0;
        border: none;
        border-top: 1px solid var(--border-color);
    }

    section {
        padding: var(--spacer-lg) var(--spacer-md);
        max-width: 1280px;
        margin: 0 auto;
    }

    pre {
        background: var(--secondary-background-color);
        padding: var(--spacer-md);
        border-radius: 4px;
        font-size: 12px;
        font-family: var(--font-family);
        color: var(--text-color);
        overflow-x: auto;
    }

    h1 {
        font-weight: 500;
        margin-bottom: var(--spacer-lg);
    }

    h2 {
        font-weight: 500;
        margin-bottom: var(--spacer-md);
        font-size: 18px;
    }

/* app chrome */

    nav {
        display: flex;
        gap: 4px;
        padding: var(--spacer-md);
        border-bottom: 1px solid var(--border-color);
        position: sticky;
        top: 0;
        background: rgba(255,255,255, 0.9);
        backdrop-filter: blur(5px);
        box-shadow: 0 2px 4px rgba(0,0,0,0.05);
        z-index: 100;
    }

    nav a {
        padding: 8px 16px;
        border-radius: 4px;
        background: transparent;
    }

    nav a:hover,
    nav a.active {
        background: var(--secondary-background-color);
        text-decoration: none;
    }

/* page specific */

    /* login */

        .loginPage {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 300px;
            margin: 0 auto;
            padding: var(--spacer-md);
            min-height: 100dvh;
        }
    
    /* tables */
    
        tr.clickable-row:hover {
            background-color: var(--secondary-background-color);
        }
    
    /* two column layout */
    
        .two-column-layout {
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 24px;
            margin-top: 24px;
        }
        
        @media (max-width: 768px) {
            .two-column-layout {
                grid-template-columns: 1fr;
            }
        }
        
        .column-left,
        .column-right {
            min-width: 0;
        }
        
        .json-card {
        }
        
        .json-card h2 {
            font-size: 18px;
            margin-bottom: 12px;
        }
        
        .json-card pre {
            overflow-y: auto;
            font-size: 12px;
            line-height: 1.4;
            background: transparent;
            padding: 0;
            border-radius: none; 
        }
    
    /* episode cards */
    
        .episode-count {
            font-size: 14px;
            color: #666;
            margin-bottom: 16px;
            padding: 12px;
            background: var(--secondary-background-color);
            border-radius: 4px;
        }
        
        .episode-count strong {
            color: var(--primary-color);
            font-weight: 600;
        }
    
        .episode-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        
        .episode-card {
            background: var(--background-color);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 16px;
        }
        
        .episode-card-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            margin-bottom: 12px;
        }
        
        .episode-title {
            font-size: 18px;
            font-weight: 600;
            margin: 0 0 4px 0;
        }
        
        .episode-meta {
            font-size: 13px;
            color: #666;
            display: flex;
            gap: 12px;
            align-items: center;
        }
        
        .episode-mood {
            font-weight: 500;
        }
        
        .episode-user {
            margin-top: 6px;
            font-size: 13px;
        }
        
        .episode-user a {
            color: #666;
            font-size: 13px;
            text-decoration: none;
            padding: 2px 8px;
            background: var(--secondary-background-color);
            border-radius: 4px;
            display: inline-block;
        }
        
        .episode-user a:hover {
            background: #e0e0e0;
            text-decoration: none;
        }
        
        .episode-description {
            color: #666;
            font-size: 14px;
            line-height: 1.5;
            margin: 0 0 12px 0;
        }
        
        .episode-journal {
            background: var(--secondary-background-color);
            padding: 12px;
            border-radius: 4px;
            margin: 12px 0;
            font-size: 14px;
        }
        
        .episode-journal strong {
            display: block;
            margin-bottom: 6px;
        }
        
        .episode-journal p {
            margin: 0;
            color: #666;
        }
        
        .episode-audio {
            margin: 12px 0;
        }
        
        .episode-audio audio {
            width: 100%;
            height: 40px;
        }
        
        .episode-rating {
            font-size: 14px;
            padding: 12px;
            background: #f0f9ff;
            border-radius: 4px;
            margin: 12px 0;
        }
        
        .episode-rating strong {
            display: block;
            margin-bottom: 4px;
        }
        
        .episode-rating p {
            margin: 4px 0 0 0;
            color: #666;
        }
        
        .episode-footer {
            display: flex;
            justify-content: space-between;
            margin-top: 12px;
            padding-top: 12px;
            border-top: 1px solid var(--border-color);
            font-size: 12px;
            color: #999;
        }
        
        .episode-context-section,
        .episode-details {
            margin-top: 12px;
            padding-top: 12px;
            border-top: 1px solid var(--border-color);
        }
        
        .episode-details-toggle {
            background: transparent;
            color: #666;
            font-size: 13px;
            padding: 6px 12px;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: all 0.2s ease;
        }
        
        .episode-details-toggle:hover {
            background: var(--secondary-background-color);
            border-color: #999;
        }
        
        .toggle-icon {
            font-size: 10px;
            transition: transform 0.2s ease;
        }
        
        .episode-details-content {
            margin-top: 12px;
            background: var(--secondary-background-color);
            border-radius: 4px;
            padding: 12px;
            overflow-x: auto;
        }
        
        .episode-details-content pre {
            margin: 0;
            font-size: 11px;
            line-height: 1.4;
            max-height: 400px;
            overflow-y: auto;
        }
        
        .status-badge {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 12px;
            font-size: 12px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        
        .status-ready {
            background: #dcfce7;
            color: #166534;
        }
        
        .status-generating {
            background: #fef3c7;
            color: #92400e;
        }
        
        .status-error {
            background: #fee2e2;
            color: #991b1b;
        }
        
        .no-episodes {
            text-align: center;
            padding: 48px 24px;
            color: #999;
        }
        
        .error-message {
            background: #fee2e2;
            color: #991b1b;
            padding: 12px;
            border-radius: 4px;
            margin: 16px 0;
        }
    
    /* pagination */
    
        .episode-pagination {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 16px;
            margin-top: 24px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
        }
        
        .pagination-btn {
            padding: 8px 16px;
            background: var(--primary-color);
            color: var(--secondary-color);
            border-radius: 4px;
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
        }
        
        .pagination-btn:hover {
            background: #333;
            text-decoration: none;
        }
        
        .pagination-info {
            font-size: 14px;
            color: #666;
        }

/* dashboard */

    .dashboard-header {
        display: flex;
        justify-content: space-between;
        align-items: flex-start;
        flex-wrap: wrap;
        gap: 16px;
    }

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

    .dashboard-header-actions button {
        flex-shrink: 0;
    }

    #dateRangePicker {
        padding: 8px 12px;
        border: 1px solid #ddd;
        border-radius: 4px;
        font-size: 14px;
        min-width: 240px;
        cursor: pointer;
        background: white;
    }

    #dateRangePicker:hover {
        border-color: #999;
    }

    .refresh-btn {
        padding: 8px 16px;
        background: #28a745;
        color: white;
        border: none;
        border-radius: 4px;
        cursor: pointer;
        font-size: 14px;
        transition: all 0.2s;
    }

    .refresh-btn:hover {
        background: #218838;
    }

    .cache-indicator {
        font-size: 12px;
        color: #666;
        font-style: italic;
    }

    .metrics-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: var(--spacer-md);
        margin-bottom: var(--spacer-lg);
    }

    .metric-card {
        background: white;
        border: 1px solid #ddd;
        border-radius: 8px;
        padding: 20px;
        box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    }

    .metric-card h3 {
        margin: 0 0 16px 0;
        font-size: 18px;
        color: #333;
    }

    .metric-note {
        font-size: 12px;
        color: #666;
        margin-top: 8px;
        font-style: italic;
    }

    .chart-container {
        position: relative;
        height: 300px;
    }

    @media (max-width: 768px) {
        .metrics-grid {
            grid-template-columns: 1fr;
        }
    }

/* playground */

    .otp-form {
        display: flex;
        flex-direction: column;
        gap: 12px;
        max-width: 400px;
    }

    .otp-input {
        padding: 12px;
        font-size: 24px;
        letter-spacing: 8px;
        text-align: center;
        font-family: monospace;
        width: 200px;
    }

    .auth-success {
        color: #28a745;
        font-weight: 500;
    }


    .message {
        padding: 12px;
        border-radius: 4px;
        margin: 12px 0;
    }

    .message-success {
        background: #d4edda;
        color: #155724;
        border: 1px solid #c3e6cb;
    }

    .message-error {
        background: #f8d7da;
        color: #721c24;
        border: 1px solid #f5c6cb;
    }