/* --- CUSTOM FONTS --- */
@font-face {
    font-display: swap;
    font-family: 'Varela';
    font-style: normal;
    font-weight: 400;
    src: url('/assets/fonts/varela-v16-latin-regular.woff') format('woff'),
         url('/assets/fonts/varela-v16-latin-regular.ttf') format('truetype');
}

@font-face {
    font-display: swap;
    font-family: 'Cairo';
    font-style: normal;
    font-weight: 700;
    src: url('/assets/fonts/cairo-v22-latin-700.woff') format('woff'),
         url('/assets/fonts/cairo-v22-latin-700.ttf') format('truetype');
}

/* --- CSS VARIABLES --- */
:root {
    --color-primary: #483E3F;
    --color-background: #F6F7F2;
    --color-success: #28a745;
    --color-danger: #dc3545;
    --color-info: #007bff;
    --color-light: #f8f9fa;
    --color-muted: #6c757d;
    --font-base: 'Varela', sans-serif;
    --font-heading: 'Cairo', sans-serif;
}

/* --- GENERAL STYLES --- */
body {
    font-family: var(--font-base);
    font-style: normal;
    font-weight: 400;
    font-size: 1rem;
    color: var(--color-primary);
    background-color: var(--color-background);
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
    font-family: var(--font-heading);
    font-style: normal;
    font-weight: 700;
}

/* --- NAVIGATION --- */
.navbar.bg-primary-custom {
    background-color: var(--color-primary) !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    letter-spacing: 0.5px;
}

/* --- TAB NAVIGATION (VEREINFACHT) --- */
.chart-tabs-wrapper {
    background: white;
    border-radius: 12px;
    padding: 1rem;
    box-shadow: 0 2px 12px rgba(72, 62, 63, 0.08);
}

.chart-tabs .nav-link {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-muted);
    border: 2px solid transparent;
    border-radius: 10px;
    padding: 1rem 1.5rem;
    transition: all 0.3s ease;
    text-decoration: none;
    background-color: transparent;
}

.chart-tabs .nav-link:hover {
    background-color: rgba(72, 62, 63, 0.05);
    color: var(--color-primary);
    transform: translateY(-2px);
}

.chart-tabs .nav-link.active {
    background: linear-gradient(135deg, var(--color-primary) 0%, #5a5051 100%);
    color: white;
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(72, 62, 63, 0.2);
}

/* --- CHART CONTAINER --- */
.chart-container {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(72, 62, 63, 0.1);
}

/* --- CHART HEADER --- */
.chart-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, #5a5051 100%);
    color: white;
    padding: 3rem 2rem;
}

.chart-main-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
    letter-spacing: 0.5px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.chart-subtitle {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.95);
    margin: 0;
    font-weight: 400;
    line-height: 1.5;
}

/* --- CHART LIST --- */
.chart-list {
    padding: 1rem 0;
}

/* --- CHART ROW --- */
.chart-row {
    padding: 1.25rem 2rem;
    border-bottom: 1px solid #e9ecef;
    transition: all 0.3s ease;
}

.chart-row:hover {
    background-color: rgba(72, 62, 63, 0.03);
    transform: translateX(4px);
}

.chart-row:last-child {
    border-bottom: none;
}

/* --- POSITION NUMBER --- */
.position-number {
    font-size: 2rem;
    font-weight: 800;
    font-family: var(--font-heading);
    color: var(--color-primary);
    min-width: 70px;
    text-align: center;
}

/* --- TREND INDICATOR --- */
.trend {
    font-size: 0.9rem;
    font-weight: 700;
    min-width: 60px;
    text-align: center;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
    margin: 0 1rem;
}

.trend-up {
    color: var(--color-success);
    background-color: rgba(40, 167, 69, 0.1);
}

.trend-down {
    color: var(--color-danger);
    background-color: rgba(220, 53, 69, 0.1);
}

.trend-new {
    color: var(--color-info);
    background-color: rgba(0, 123, 255, 0.1);
    font-size: 0.75rem;
    font-weight: 800;
}

.trend-neutral {
    color: var(--color-muted);
}

/* --- TRACK INFO --- */
.track-info {
    padding-left: 1rem;
}

.track-title {
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--color-primary);
    margin-bottom: 0.25rem;
    font-family: var(--font-heading);
}

.track-artist {
    color: var(--color-muted);
    font-size: 0.95rem;
}

/* --- TRACK STATS --- */
.track-stats {
    min-width: 140px;
    padding-left: 1rem;
}

.play-count {
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--color-primary);
    margin-bottom: 0.25rem;
}

.station-info {
    font-size: 0.8rem;
    color: var(--color-muted);
    cursor: help;
    border-bottom: 1px dotted var(--color-muted);
    display: inline-block;
}

/* --- SPOTIFY LOGO --- */
.spotify-logo {
    height: 28px;
    width: auto;
    transition: transform 0.2s ease, opacity 0.2s ease;
    opacity: 0.85;
}

.spotify-logo:hover {
    transform: scale(1.1);
    opacity: 1;
}

/* --- NO DATA MESSAGE --- */
.no-data h3 {
    color: var(--color-primary);
    margin-bottom: 1rem;
}

/* --- FOOTER --- */
.footer {
    background-color: var(--color-light);
    border-top: 1px solid #dee2e6;
}

.footer-title {
    font-family: var(--font-heading);
    color: var(--color-primary);
    font-size: 1.25rem;
}

/* --- TOOLTIP STYLING --- */
.tooltip-inner {
    max-width: 250px;
    padding: 0.75rem 1rem;
    background-color: var(--color-primary);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    text-align: left;
    font-size: 0.875rem;
    line-height: 1.6;
}

.tooltip.bs-tooltip-auto[data-popper-placement^=left] .tooltip-arrow::before,
.tooltip.bs-tooltip-start .tooltip-arrow::before {
    border-left-color: var(--color-primary);
}

.tooltip.bs-tooltip-auto[data-popper-placement^=right] .tooltip-arrow::before,
.tooltip.bs-tooltip-end .tooltip-arrow::before {
    border-right-color: var(--color-primary);
}

.tooltip.bs-tooltip-auto[data-popper-placement^=top] .tooltip-arrow::before,
.tooltip.bs-tooltip-top .tooltip-arrow::before {
    border-top-color: var(--color-primary);
}

.tooltip.bs-tooltip-auto[data-popper-placement^=bottom] .tooltip-arrow::before,
.tooltip.bs-tooltip-bottom .tooltip-arrow::before {
    border-bottom-color: var(--color-primary);
}

/* --- RESPONSIVE DESIGN --- */
@media (max-width: 768px) {
    .chart-tabs-wrapper {
        padding: 0.75rem;
    }
    
    .chart-tabs .nav-link {
        padding: 0.875rem 1rem;
        font-size: 1rem;
    }
    
    .chart-row {
        padding: 1rem;
    }
    
    .position-number {
        font-size: 1.5rem;
        min-width: 50px;
    }
    
    .trend {
        min-width: 50px;
        font-size: 0.8rem;
        margin: 0 0.5rem;
    }
    
    .track-title {
        font-size: 1rem;
    }
    
    .track-artist {
        font-size: 0.85rem;
    }
    
    .track-stats {
        min-width: 100px;
    }
    
    .play-count {
        font-size: 1rem;
    }
    
    .chart-main-title {
        font-size: 1.75rem;
    }
    
    .chart-subtitle {
        font-size: 1rem;
    }
    
    .spotify-logo {
        height: 24px;
    }
}

@media (max-width: 576px) {
    .chart-tabs {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .chart-tabs .nav-item {
        width: 100%;
    }
    
    .chart-tabs .nav-link {
        text-align: center;
        padding: 1rem;
    }
    
    .chart-row {
        padding: 0.75rem 0.5rem;
    }
    
    .chart-row:hover {
        transform: none;
    }
    
    .position-number {
        min-width: 40px;
        font-size: 1.25rem;
    }
    
    .track-info {
        padding-left: 0.5rem;
    }
}