/* ── Reset & Base ───────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@400;600;700;800&family=Source+Serif+4:ital,wght@0,400;0,600;1,400&display=swap');

:root {
    --bg: #0A1628;
    --card: #111E33;
    --text: #E8E6E1;
    --text-muted: #8899AA;
    --primary: #D4A843;
    --primary-dark: #B8922F;
    --accent: #D4A843;
    --border: #1E2D45;
    --shadow: 0 2px 8px rgba(0,0,0,0.3);
    --shadow-hover: 0 4px 16px rgba(0,0,0,0.4);
    --radius: 10px;
    --good: #48bb78;
    --warning: #ecc94b;
    --poor: #e53e3e;
    /* Zone colors */
    --z1: #a0aec0; --z2: #4a9bd9; --z3: #48bb78;
    --z4: #ecc94b; --z5: #ed8936; --z6: #e53e3e;
}

/* Light theme override */
[data-theme="light"] {
    --bg: #f5f7fa;
    --card: #ffffff;
    --text: #2b2d42;
    --text-muted: #6c7a89;
    --primary: #00b4d8;
    --primary-dark: #0077b6;
    --accent: #ff6b35;
    --border: #e2e8f0;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-hover: 0 4px 16px rgba(0,0,0,0.12);
}

body {
    font-family: 'Source Serif 4', Georgia, serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
    padding: 0 24px 48px;
}

h1, h2, h3, .score-label, .score-value, .chip-value, .chip-label, .tab,
.btn-upload, .btn-upload-secondary, .btn-action, .btn-theme,
.param-group label, .progress-text, .table-section-label,
.selection-label, .spider-limiter, .profile-callouts,
.chart-subtitle, .upload-hint, .segment-badge {
    font-family: 'Barlow Condensed', sans-serif;
}

/* ── Header ────────────────────────────────────────────── */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    padding: 20px 0 12px;
    border-bottom: 2px solid var(--border);
}

.header h1 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 0.5px;
}

.subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-left: 4px;
}

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

.param-group {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.param-group label {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.5px;
}

.param-group input {
    width: 72px;
    padding: 6px 8px;
    border: 1.5px solid var(--border);
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
    background: var(--card);
    text-align: center;
    transition: border-color 0.2s;
}

.param-group input:focus {
    outline: none;
    border-color: var(--primary);
}

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

/* ── Theme Toggle ─────────────────────────────────────── */
.btn-theme {
    padding: 6px 10px;
    background: var(--card);
    border: 1.5px solid var(--border);
    border-radius: 6px;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
    transition: all 0.2s;
}

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

/* ── Tab Bar ───────────────────────────────────────────── */
.tab-bar {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 12px 0 16px;
}

.tab {
    padding: 8px 20px;
    background: transparent;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s;
}

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

.tab.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #0A1628;
}

.tab-actions {
    margin-left: auto;
    display: flex;
    align-items: center;
}

.upload-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-upload {
    padding: 8px 18px;
    background: var(--primary);
    color: #0A1628;
    border: none;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-upload:hover { background: var(--primary-dark); }

.btn-season { background: var(--primary-dark); }
.btn-season:hover { opacity: 0.85; }

.btn-upload-secondary {
    padding: 8px 14px;
    background: transparent;
    border: 1.5px solid var(--primary);
    border-radius: 6px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--primary);
    cursor: pointer;
    transition: all 0.2s;
}

.btn-upload-secondary:hover {
    background: var(--primary);
    color: #0A1628;
}

.upload-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ── Progress Bar ──────────────────────────────────────── */
.progress-bar-container {
    background: var(--border);
    border-radius: 8px;
    height: 28px;
    margin-bottom: 16px;
    position: relative;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--primary), var(--primary-dark));
    border-radius: 8px;
    transition: width 0.3s;
}

.progress-text {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text);
}

/* ── Hidden utility ────────────────────────────────────── */
.hidden { display: none !important; }

/* ── Summary Bar ───────────────────────────────────────── */
.summary-bar {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.chip {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--card);
    border: 1.5px solid var(--border);
    border-radius: 8px;
    padding: 8px 16px;
    min-width: 90px;
    box-shadow: var(--shadow);
}

.chip-label {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: 0.5px;
}

.chip-value {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--primary);
}

/* ── Spider Chart ─────────────────────────────────────── */
.spider-container {
    max-width: 520px;
    margin: 0 auto 28px;
}

.spider-card {
    text-align: center;
}

.chart-spider {
    width: 100%;
    min-height: 380px;
}

.chart-spider svg {
    width: 100%;
    height: 100%;
    overflow: visible;
}

.spider-limiter {
    text-align: center;
    padding: 12px 16px;
    margin-top: 4px;
    font-size: 0.9rem;
    line-height: 1.6;
}

.limiter-prefix {
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
}

.limiter-name {
    color: var(--poor);
    font-weight: 700;
    font-size: 1.1rem;
}

.limiter-explain {
    color: var(--text-muted);
    font-size: 0.82rem;
    font-style: italic;
}

/* ── Scorecard ─────────────────────────────────────────── */
.scorecard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.score-card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    box-shadow: var(--shadow);
    border-top: 3px solid var(--primary);
    transition: box-shadow 0.2s, transform 0.2s;
    position: relative;
}

/* ── Quality Dots ──────────────────────────────────────── */
.quality-dot {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border);
    cursor: help;
    transition: background 0.2s;
}

.quality-dot.q-good { background: var(--good); }
.quality-dot.q-warn { background: var(--warning); }
.quality-dot.q-poor { background: var(--poor); }

/* ── Segment Badge ─────────────────────────────────────── */
.segment-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--primary);
    background: rgba(212, 168, 67, 0.15);
    padding: 2px 6px;
    border-radius: 4px;
}

/* ── Chart Header Row ──────────────────────────────────── */
.chart-header-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.chart-header-row h2 { margin-bottom: 0; }

.chart-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-action {
    padding: 5px 12px;
    background: var(--primary);
    color: #0A1628;
    border: none;
    border-radius: 5px;
    font-size: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-action:hover { background: var(--primary-dark); }

.btn-action-muted {
    background: transparent;
    color: var(--text-muted);
    border: 1.5px solid var(--border);
}

.btn-action-muted:hover {
    background: var(--border);
    color: var(--text);
}

.selection-label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--primary);
}

.score-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.score-card.good { border-top-color: var(--good); }
.score-card.warning { border-top-color: var(--warning); }
.score-card.poor { border-top-color: var(--poor); }

.score-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.score-value {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text);
    line-height: 1.1;
}

.score-unit {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-top: 2px;
}

.score-desc {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 8px;
}

/* ── Chart Subtitle ────────────────────────────────────── */
.chart-subtitle {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: -8px;
    margin-bottom: 12px;
}

/* ── Supplementary Metrics ─────────────────────────────── */
.supplementary-section {
    margin: 32px 0 24px;
}
.section-heading {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 4px;
}
.section-caveat {
    font-family: 'Source Serif 4', serif;
    font-size: 0.78rem;
    color: var(--text-muted);
    font-style: italic;
    margin-bottom: 16px;
}
.caveat-text {
    color: var(--warning);
    font-size: 0.78rem;
    font-style: italic;
}
.fuel-burn-box { padding: 20px; }
.fuel-burn-headline { font-size: 1.3rem; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.fuel-burn-detail { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 6px; }
.fuel-burn-flag { font-size: 0.9rem; font-weight: 600; padding: 8px 12px; border-radius: 6px; margin: 10px 0; }
.fuel-burn-flag.amber { background: rgba(236,201,75,0.15); color: var(--warning); border-left: 3px solid var(--warning); }
.fuel-burn-flag.red { background: rgba(229,62,62,0.15); color: var(--poor); border-left: 3px solid var(--poor); }
.fuel-burn-caveat { font-size: 0.78rem; color: var(--text-muted); font-style: italic; margin-top: 10px; }

/* ── PDF Export ────────────────────────────────────────── */
.pdf-export-section {
    text-align: center;
    padding: 32px 0 16px;
    margin-top: 20px;
}
.btn-pdf {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    background: #0A1628;
    color: #D4A843;
    border: 2px solid #D4A843;
    padding: 14px 36px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}
.btn-pdf:hover {
    background: #D4A843;
    color: #0A1628;
}
.pdf-hint {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 8px;
}

/* ── Hero Sections ─────────────────────────────────────── */
.hero-section { margin-bottom: 24px; display: none; }
.spider-trend {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-muted);
    font-style: italic;
    margin-top: 8px;
}
.priorities-box { padding: 24px; }
.priority-item { margin-bottom: 16px; }
.priority-number {
    display: inline-block;
    width: 28px; height: 28px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    text-align: center;
    line-height: 28px;
    font-weight: 700;
    font-size: 0.85rem;
    margin-right: 10px;
    vertical-align: top;
}
.priority-text { display: inline-block; width: calc(100% - 44px); vertical-align: top; }
.priority-title { font-weight: 700; color: var(--text); margin-bottom: 2px; }
.priority-detail { font-size: 0.85rem; color: var(--text-muted); }
.btn-back {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary);
    background: none;
    border: 1px solid var(--border);
    padding: 6px 16px;
    border-radius: 6px;
    cursor: pointer;
    margin-bottom: 16px;
}
.btn-back:hover { background: var(--card); }
.empty-state { text-align: center; padding: 60px 20px; color: var(--text-muted); }
.ride-list-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.ride-list-table th { text-align: left; padding: 8px 12px; border-bottom: 2px solid var(--border); color: var(--text-muted); font-weight: 600; text-transform: uppercase; font-size: 0.75rem; letter-spacing: 0.05em; }
.ride-list-table td { padding: 8px 12px; border-bottom: 1px solid var(--border); }
.ride-list-table tr { cursor: pointer; transition: background 0.15s; }
.ride-list-table tr:hover { background: var(--card); }
.dur-badge { display: inline-block; padding: 2px 8px; border-radius: 10px; font-weight: 700; font-size: 0.8rem; }
.dur-badge.good { background: rgba(72,187,120,0.15); color: var(--good); }
.dur-badge.warning { background: rgba(236,201,75,0.15); color: var(--warning); }
.dur-badge.poor { background: rgba(229,62,62,0.15); color: var(--poor); }

.supplementary-scorecard .score-card {
    border-top-width: 2px;
    opacity: 0.8;
}

/* ── Charts ────────────────────────────────────────────── */
.chart-container {
    margin-bottom: 20px;
}

.chart-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.chart-card {
    background: var(--card);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
}

.chart-card h2 {
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.chart {
    width: 100%;
    min-height: 260px;
}

.chart-tall {
    min-height: 320px;
}

.chart-zones {
    min-height: 180px;
}

.chart svg {
    width: 100%;
    height: 100%;
    overflow: visible;
}

/* ── Power Profile Callouts ───────────────────────────── */
.profile-callouts {
    display: flex;
    gap: 16px;
    margin-top: 16px;
}

.profile-callout {
    flex: 1;
    padding: 12px 16px;
    border-radius: 8px;
    text-align: center;
    background: rgba(255,255,255,0.03);
    border: 1.5px solid var(--border);
}

.profile-callout.strength {
    border-color: var(--good);
}

.profile-callout.opportunity {
    border-color: var(--poor);
}

.callout-label {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.callout-value {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text);
}

.callout-level {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--primary);
}

.profile-callout.strength .callout-level { color: var(--good); }
.profile-callout.opportunity .callout-level { color: var(--poor); }

/* ── Best/Worst Table ──────────────────────────────────── */
.table-container {
    overflow-x: auto;
}

.rides-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.82rem;
}

.rides-table th {
    text-align: left;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    padding: 8px 12px;
    border-bottom: 2px solid var(--border);
    font-family: 'Barlow Condensed', sans-serif;
}

.rides-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.rides-table tbody tr {
    cursor: pointer;
    transition: background 0.15s;
}

.rides-table tbody tr:hover {
    background: rgba(212, 168, 67, 0.08);
}

.rides-table .best-row td:first-child {
    border-left: 3px solid var(--good);
}

.rides-table .worst-row td:first-child {
    border-left: 3px solid var(--poor);
}

.table-section-label {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    padding: 12px;
    background: var(--bg);
}

.table-section-label.best { color: var(--good); }
.table-section-label.worst { color: var(--poor); }

/* ── Season empty state ────────────────────────────────── */
.season-empty {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
    font-size: 1rem;
}

/* ── Tooltip ───────────────────────────────────────────── */
.tooltip {
    position: fixed;
    pointer-events: none;
    background: rgba(10, 22, 40, 0.95);
    color: #E8E6E1;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 0.78rem;
    line-height: 1.5;
    opacity: 0;
    transition: opacity 0.15s;
    z-index: 1000;
    max-width: 260px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.4);
    border: 1px solid rgba(212, 168, 67, 0.2);
    font-family: 'Barlow Condensed', sans-serif;
}

.tooltip.visible { opacity: 1; }

/* ── D3 Axes ───────────────────────────────────────────── */
.axis text {
    font-size: 11px;
    fill: var(--text-muted);
}

.axis path, .axis line {
    stroke: var(--border);
}

.grid line {
    stroke: var(--border);
    stroke-opacity: 0.5;
    stroke-dasharray: 3,3;
}

.grid path { stroke: none; }

/* ── Responsive ────────────────────────────────────────── */
@media (max-width: 900px) {
    .chart-row {
        grid-template-columns: 1fr;
    }
    .header {
        flex-direction: column;
        align-items: flex-start;
    }
    .tab-bar {
        flex-wrap: wrap;
    }
    .profile-callouts {
        flex-direction: column;
    }
}

@media (max-width: 600px) {
    body { padding: 0 12px 32px; }
    .scorecard { grid-template-columns: 1fr 1fr; }
    .summary-bar { gap: 8px; }
    .chip { min-width: 70px; padding: 6px 10px; }
    .spider-container { max-width: 100%; }
}

/* ── D3 Brush ──────────────────────────────────────────── */
.selection {
    fill: rgba(212, 168, 67, 0.15);
    stroke: var(--primary);
    stroke-width: 1.5;
    rx: 4;
}

.handle {
    fill: var(--primary);
    rx: 2;
}

.overlay {
    cursor: crosshair;
}

/* Dimmed region outside brush */
.brush-dim {
    fill: rgba(10, 22, 40, 0.4);
    pointer-events: none;
}

/* Selection markers on other charts */
.selection-marker {
    stroke: var(--primary);
    stroke-width: 1;
    stroke-dasharray: 4,3;
    opacity: 0.5;
}

/* ── Upload drag-over state ────────────────────────────── */
body.drag-over::after {
    content: 'Drop .fit / .csv / .json files';
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(212, 168, 67, 0.1);
    border: 3px dashed var(--primary);
    border-radius: 12px;
    margin: 16px;
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary);
    z-index: 9999;
    pointer-events: none;
    font-family: 'Barlow Condensed', sans-serif;
}