/**
 * Day 20 - Whale Sightings Styles
 * Western Australian Coast 2008-2011
 */

/* ============================================
   CSS Variables & Base Styles
   ============================================ */

:root {
    --color-bg: #f5f5f5;
    --color-surface: rgba(255, 255, 255, 0.95);
    --color-surface-glass: rgba(255, 255, 255, 0.9);
    --color-text: #1a1a1a;
    --color-text-muted: rgba(26, 26, 26, 0.6);
    --color-accent: #2563eb;
    --color-whale: #3b82f6;
    --font-serif: 'Instrument Serif', Georgia, serif;
    --font-mono: 'JetBrains Mono', monospace;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.15);
    --shelf-height: 220px;
}

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

html,
body {
    height: 100%;
    overflow: hidden;
    font-family: var(--font-mono);
    background: var(--color-bg);
    color: var(--color-text);
}

/* ============================================
   Map Container
   ============================================ */

#map {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* ============================================
   Overlay System
   ============================================ */

.overlay {
    position: absolute;
    z-index: 100;
    pointer-events: none;
}

/* ============================================
   Back Link
   ============================================ */

.back-link {
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: 101;
    font-size: 0.75rem;
    color: rgba(0, 0, 0, 0.5);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

/* ============================================
   Header & Title Card
   ============================================ */

.header {
    top: 50px;
    left: 20px;
    right: 20px;
}

.title-card {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius);
    padding: 20px 24px;
    display: inline-block;
    pointer-events: auto;
}

.title-card h1 {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 400;
    margin-bottom: 4px;
    color: var(--color-accent);
}

.title-card .subtitle {
    font-size: 0.75rem;
    color: rgba(0, 0, 0, 0.5);
    font-weight: 300;
}

.title-meta {
    margin-top: 8px;
}

.attribution {
    font-size: 0.65rem;
    color: rgba(0, 0, 0, 0.4);
}

/* ============================================
   Info Panel
   ============================================ */

.info-panel {
    position: absolute;
    bottom: calc(var(--shelf-height) + 40px);
    left: 20px;
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 10px 16px;
    background: rgba(26, 26, 26, 0.85);
    backdrop-filter: blur(8px);
    border-radius: 6px;
    font-family: var(--font-mono);
}

.info-date,
.info-count {
    display: flex;
    align-items: baseline;
    gap: 5px;
}

.info-label {
    font-size: 0.65rem;
    color: rgba(255, 255, 255, 0.55);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.info-value {
    font-size: 1rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.95);
    line-height: 1;
}

/* ============================================
   Popup
   ============================================ */

.popup {
    position: absolute;
    z-index: 150;
    padding: 16px 20px;
    background: var(--color-surface);
    border-radius: var(--radius);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    max-width: 280px;
    min-width: 200px;
    pointer-events: auto;
}

.popup.hidden {
    display: none;
}

.popup-close {
    position: absolute;
    top: 8px;
    right: 10px;
    background: none;
    border: none;
    font-size: 1.4rem;
    color: var(--color-text-muted);
    cursor: pointer;
    line-height: 1;
    padding: 4px;
}

.popup-close:hover {
    color: var(--color-text);
}

.popup-content {
    font-size: 0.85rem;
    line-height: 1.5;
}

.popup-content .popup-date {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-bottom: 8px;
}

.popup-content .popup-species {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    margin-bottom: 6px;
}

.popup-content .popup-count {
    font-size: 0.8rem;
    margin-bottom: 4px;
}

.popup-content .popup-location {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-style: italic;
}

/* ============================================
   Bottom Shelf (Timeline)
   ============================================ */

.shelf {
    position: absolute;
    bottom: 20px;
    left: 20px;
    right: 20px;
    height: var(--shelf-height);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius);
    display: flex;
    flex-direction: column;
    z-index: 200;
    overflow: hidden;
    pointer-events: auto;
    transition: height 0.3s ease;
}

.shelf-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.shelf-title h3 {
    font-size: 0.85rem;
    font-weight: 600;
    margin: 0;
}

.shelf-subtitle {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    margin-top: 2px;
    display: block;
}

.shelf-controls {
    display: flex;
    gap: 8px;
}

.collapse-btn {
    width: 36px;
    height: 36px;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    cursor: pointer;
    transition: all 0.2s;
}

.collapse-btn:hover {
    background: rgba(0, 0, 0, 0.1);
}

.collapse-btn svg {
    transition: transform 0.3s ease;
}

.shelf.collapsed .collapse-btn svg {
    transform: rotate(180deg);
}

.clear-btn,
.play-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    cursor: pointer;
    transition: all 0.2s;
}

.clear-btn:hover,
.play-btn:hover {
    background: rgba(0, 0, 0, 0.1);
}

.play-btn.playing {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: white;
}

.play-btn svg {
    display: none;
}

.play-btn .play-icon {
    display: block;
}

.play-btn .pause-icon {
    display: none;
}

.play-btn.playing .play-icon {
    display: none;
}

.play-btn.playing .pause-icon {
    display: block;
}

/* ============================================
   Shelf Collapsed State
   ============================================ */

.shelf.collapsed {
    height: auto;
}

.shelf.collapsed .shelf-content {
    display: none;
}

.shelf.collapsed .shelf-subtitle {
    display: none;
}

/* ============================================
   Chart Area
   ============================================ */

.shelf-content {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    padding: 8px 16px 12px 16px;
    overflow: visible;
    min-height: 0;
}

.chart-container {
    position: relative;
    flex: 1;
    min-width: 0;
    min-height: 0;
}

#timeline-chart {
    width: 100% !important;
    height: 100% !important;
    cursor: crosshair;
    touch-action: none;
}

/* ============================================
   MapLibre Overrides
   ============================================ */

.maplibregl-ctrl-bottom-left,
.maplibregl-ctrl-bottom-right {
    bottom: calc(var(--shelf-height) + 30px) !important;
}

.maplibregl-ctrl-attrib {
    display: none !important;
}

.maplibregl-ctrl-attrib.maplibregl-compact {
    display: block !important;
    min-height: 20px;
    background-color: rgba(255, 255, 255, 0.5);
    border-radius: 12px;
}

.maplibregl-ctrl-attrib-button {
    display: block !important;
}

/* ============================================
   Mobile Responsive
   ============================================ */

@media (max-width: 768px) {
    :root {
        --shelf-height: 200px;
    }

    .back-link {
        top: 12px;
        left: 12px;
        font-size: 0.7rem;
    }

    .header {
        top: 40px;
        left: 12px;
        right: 12px;
    }

    .title-card {
        padding: 14px 18px;
    }

    .title-card h1 {
        font-size: 1.2rem;
    }

    .title-card .subtitle {
        font-size: 0.65rem;
    }

    .info-panel {
        display: none;
    }

    .shelf {
        bottom: 12px;
        left: 12px;
        right: 12px;
    }

    .popup {
        left: 12px !important;
        right: 12px !important;
        top: auto !important;
        bottom: calc(var(--shelf-height) + 30px) !important;
        max-width: none;
    }

    .shelf-header {
        padding: 10px 14px;
    }

    .shelf-title h3 {
        font-size: 0.75rem;
    }

    .shelf-subtitle {
        font-size: 0.65rem;
    }

    .shelf-content {
        padding: 6px 12px 10px;
    }

    .collapse-btn {
        display: flex;
    }

    .maplibregl-ctrl-bottom-left,
    .maplibregl-ctrl-bottom-right {
        bottom: calc(var(--shelf-height) + 20px) !important;
    }
}

@media (max-width: 480px) {
    :root {
        --shelf-height: 180px;
    }

    .title-card {
        padding: 10px 14px;
    }

    .title-card h1 {
        font-size: 1rem;
    }

    .title-card .subtitle {
        font-size: 0.6rem;
    }

    .title-meta {
        display: none;
    }

    .shelf {
        bottom: 8px;
        left: 8px;
        right: 8px;
    }
}