/* =============================================================================
   MyCar Telemetry Dashboard — Main Stylesheet
   Architecture: CSS Custom Properties + BEM-inspired naming
   ============================================================================= */

/* -----------------------------------------------------------------------------
   1. Design Tokens
   ----------------------------------------------------------------------------- */
:root {
    /* Colours */
    --color-bg:            #020617;
    --color-surface:       #0f172a;
    --color-surface-hover: #1e293b;
    --color-border:        rgba(255, 255, 255, 0.07);
    --color-border-hover:  rgba(255, 255, 255, 0.14);

    --color-text:          #f8fafc;
    --color-text-muted:    #94a3b8;
    --color-text-dim:      #64748b;

    --color-accent:        #38bdf8;
    --color-success:       #01e676;
    --color-warning:       #f59e0b;
    --color-orange:        #f97316;
    --color-danger:        #ef4444;
    --color-today:         #01e676;
    --color-past:          #38bdf8;

    /* Gradients */
    --gradient-brand: linear-gradient(to bottom, #34d399, #38bdf8);

    /* Spacing */
    --space-1:  4px;
    --space-2:  8px;
    --space-3:  12px;
    --space-4:  16px;
    --space-5:  20px;
    --space-6:  24px;
    --space-8:  32px;
    --space-10: 40px;

    /* Border radius */
    --radius-sm:   6px;
    --radius-md:   10px;
    --radius-lg:   14px;
    --radius-full: 9999px;

    /* Transitions */
    --transition: 0.2s ease;

    /* Typography — families */
    --font-sans: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --font-mono: 'Consolas', 'Monaco', 'Lucida Console', monospace;

    /* Typography — size scale */
    --text-xs:   11px;  /* micro labels: ALL-CAPS, letter-spaced     */
    --text-sm:   13px;  /* secondary text, units, dim info            */
    --text-base: 14px;  /* body, nav tabs, card titles                */
    --text-data: 15px;  /* mono inline data values                    */
    --text-md:   16px;  /* prominent card data (e.g. trip time)       */
    --text-lg:   20px;  /* card / section headings                    */
    --text-xl:   24px;  /* page header                                */
    --text-kpi:  26px;  /* featured KPI numbers                       */
}

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

html { -webkit-text-size-adjust: 100%; }

body {
    font-family: var(--font-sans), sans-serif;
    font-size: var(--text-base);
    color: var(--color-text);
    background-color: var(--color-bg);
    background-image:
            radial-gradient(ellipse at 0% 0%,    rgba(52, 211, 153, 0.06) 0, transparent 50%),
            radial-gradient(ellipse at 100% 100%, rgba(56, 189, 248, 0.06) 0, transparent 50%);
    min-height: 100vh;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

button { font-family: var(--font-sans), sans-serif; cursor: pointer; }

/* Custom scrollbar */
::-webkit-scrollbar            { width: 5px; }
::-webkit-scrollbar-track      { background: transparent; }
::-webkit-scrollbar-thumb      { background: #1e293b; border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: #334155; }

/* -----------------------------------------------------------------------------
   3. Page Layout
   ----------------------------------------------------------------------------- */
.page {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-8) var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

/* 50 / 50 two-column grid */
.dashboard {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
    align-items: start;
}

/* -----------------------------------------------------------------------------
   4. Header
   ----------------------------------------------------------------------------- */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: var(--space-5);
    border-bottom: 1px solid var(--color-border);
    flex-wrap: wrap;
    gap: var(--space-2);
    position: relative;
}

#page-progress {
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    overflow: hidden;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s;
}

#page-progress.is-loading {
    opacity: 1;
}

#page-progress::after {
    content: '';
    position: absolute;
    top: 0;
    left: -45%;
    width: 45%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--color-accent), var(--color-success), transparent);
    animation: progress-sweep 1.1s ease-in-out infinite;
}

@keyframes progress-sweep {
    from { left: -45%; }
    to   { left: 110%; }
}

.header__brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

/* Gradient accent bar */
.header__bar {
    width: 12px;
    height: 36px;
    background: var(--gradient-brand);
    border-radius: var(--radius-full);
    flex-shrink: 0;
    box-shadow: 0 0 14px rgba(52, 211, 153, 0.35), 0 0 4px rgba(56, 189, 248, 0.2);
}

.header__title {
    font-size: var(--text-xl);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-text);
}

.header__subtitle {
    font-size: var(--text-base);
    color: var(--color-text-muted);
    margin-top: 2px;
}

.header__badges {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
}

/* Header stat badges */
.header-badge {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 10px var(--space-4);
    display: flex;
    flex-direction: column;
    gap: 3px;
    min-width: 130px;
    transition: background-color var(--transition);
}
/* Header badge KPI accent line */
.header-badge {
    position: relative;
    overflow: hidden;
}

.header-badge::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(
            to right,
            transparent,
            var(--badge-accent) 50%,
            transparent
    );
}

.header-badge--white {
    --badge-accent: #ffffff;
}

.header-badge--red {
    --badge-accent: var(--color-danger);
}

.header-badge--red .header-badge__value {
    color: var(--color-danger);
}

.header-badge:hover { background: var(--color-surface-hover); }

.header-badge__label {
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    font-weight: 500;
}

.header-badge__value {
    font-family: var(--font-mono), monospace;
    font-size: var(--text-data);
    font-weight: 500;
    text-align: center;
    color: var(--color-text);
}

/* -----------------------------------------------------------------------------
   5. Section headers
   ----------------------------------------------------------------------------- */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: var(--space-3);
    min-height: 32px;
}

.section-header__title {
    font-size: var(--text-lg);
    font-weight: 500;
    color: var(--color-text);
}

.section-header__meta {
    font-family: var(--font-mono), monospace;
    font-size: var(--text-base);
    color: var(--color-text-muted);
}

/* -----------------------------------------------------------------------------
   6. Trips column
   ----------------------------------------------------------------------------- */
.col--trips {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

/* Trip feed */
.feed {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

/* Date group header */
.date-group {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    padding-top: var(--space-3);
}

.date-group:first-child { padding-top: 0; }

.date-group__dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}

.date-group--today { color: var(--color-today); }
.date-group--past  { color: var(--color-past);  }

.date-group--today .date-group__dot {
    background: var(--color-today);
    animation: dot-pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.date-group--past .date-group__dot { background: var(--color-past); }

/* Trip card */
.trip-card {
    position: relative;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-left: 4px solid transparent;
    border-radius: var(--radius-lg);
    padding: var(--space-2) var(--space-5);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    transition: background-color var(--transition);
}

.trip-card:hover              { background: var(--color-surface-hover); }
.trip-card--today             { border-left-color: var(--color-today); }
.trip-card--past              { border-left-color: var(--color-past);  }

.trip-card__time {
    font-size: var(--text-md);
    font-weight: 600;
    font-family: var(--font-mono), monospace;
    letter-spacing: 0.04em;
}

.trip-card--today .trip-card__time { color: var(--color-today); }
.trip-card--past  .trip-card__time { color: var(--color-past);  }

/* 3-column grid inside card */
.trip-card__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-3) var(--space-4);
}

.trip-field__label {
    display: block;
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-muted);
    margin-bottom: 3px;
}

.trip-field__value {
    font-family: var(--font-mono), monospace;
    font-size: var(--text-data);
    color: var(--color-text);
}

.trip-field__value--accent {
    color: var(--color-success);
    font-weight: 700;
}

/* Load more button */
.load-more-btn {
    width: 100%;
    padding: 11px;
    background: transparent;
    border: 1px solid rgba(56, 189, 248, 0.25);
    border-radius: var(--radius-md);
    color: var(--color-accent);
    font-size: var(--text-sm);
    font-weight: 600;
    letter-spacing: 0.04em;
    transition: background-color var(--transition), border-color var(--transition);
}

.load-more-btn:hover    { background: rgba(56,189,248,0.06); border-color: var(--color-accent); }
.load-more-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.feed-empty {
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--text-base);
    padding: 48px var(--space-5);
}

/* -----------------------------------------------------------------------------
   7. Stats column & Wrapper Cards
   ----------------------------------------------------------------------------- */
.col--stats {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.stats-card-panel {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    transition: background-color var(--transition);
}

.stats-card-panel__header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.stats-card-panel__title {
    font-size: var(--text-lg);
    font-weight: 500;
    color: var(--color-text);
}

/* 2-column stat grid inside wrapper panels */
.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
}

/* Stat card */
.stat-card {
    background: #182232;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 14px var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    transition: background-color var(--transition), border-color var(--transition);
}

.stat-card:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-border-hover);
}
.stat-card--full { grid-column: 1 / -1; }

.stat-card__label {
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--color-text-muted);
}

.stat-card__value {
    font-family: var(--font-mono), monospace;
    font-size: var(--text-data);
    color: var(--color-text);
}

.stat-card__value--accent { color: var(--color-success); }
.stat-card__value--muted  { color: var(--color-text-muted); }
.stat-card__value--danger { color: var(--color-danger); }

/* Previous refuel cycle entries */
.prev-cycle {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.prev-cycle + .prev-cycle {
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border);
}

.prev-cycle__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.prev-cycle__date {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    font-weight: 500;
}

.prev-cycle__trips {
    font-size: var(--text-xs);
    color: var(--color-text-dim);
    font-family: var(--font-mono), monospace;
}

/* -----------------------------------------------------------------------------
   8. Fuel gauge (Gradient fill)
   ----------------------------------------------------------------------------- */
.fuel-gauge__track {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin: var(--space-2) 0;
}

.fuel-gauge__fill {
    height: 100%;
    border-radius: var(--radius-full);
    width: 0;
    background: linear-gradient(90deg, #ef4444 0%, #f97316 35%, #f59e0b 65%, #34d399 100%);
    transition: width 0.6s ease;
}

.fuel-gauge__footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.stat-row__head {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.stat-row__dim {
    font-family: var(--font-mono), monospace;
    font-size: var(--text-sm);
    color: var(--color-text-dim);
}

/* -----------------------------------------------------------------------------
   9. Fuel price block
   ----------------------------------------------------------------------------- */
.fuel-price-block {
    margin-top: var(--space-2);
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-border);
}

.fuel-price-block__header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: var(--space-4);
    margin-bottom: var(--space-2);
}

.fuel-price-block__label {
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--color-text-muted);
    font-weight: 500;
    white-space: nowrap;
    flex-shrink: 0;
}

.fuel-price-block__station {
    font-family: var(--font-mono), monospace;
    font-size: var(--text-sm);
    color: var(--color-accent);
    font-weight: 500;
    text-align: right;
}

.fuel-price-block__items {
    display: flex;
    flex-direction: column;
    gap: 3px;
    transition: opacity 0.15s ease;
}

.fuel-price-block__items .fuel-price__item {
    display: block;
    font-family: var(--font-mono), monospace;
    font-size: var(--text-base);
    color: var(--color-text);
    line-height: 1.6;
}

.fuel-price-block__items .fuel-price__cost {
    color: var(--color-success);
    font-weight: 500;
}

.fuel-price-block__items .fuel-price__updated {
    display: block;
    font-size: var(--text-sm);
    color: var(--color-text-dim);
    margin-top: 4px;
    font-family: var(--font-sans), sans-serif;
}

/* -----------------------------------------------------------------------------
   10. Log files
   ----------------------------------------------------------------------------- */
.logs-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.log-file {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 11px var(--space-4);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    cursor: pointer;
    transition: background-color var(--transition);
}

.log-file:hover { background: var(--color-surface-hover); }

.log-file__name {
    font-family: var(--font-mono), monospace;
    font-size: var(--text-sm);
    color: var(--color-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-decoration: none;
}

.log-file__name:hover { color: var(--color-accent); }

.log-file__time {
    font-family: var(--font-mono), monospace;
    font-size: var(--text-sm);
    color: var(--color-past);
    font-weight: 700;
    flex-shrink: 0;
}

.logs-empty {
    font-size: var(--text-base);
    color: var(--color-text-muted);
    padding: var(--space-2) 0;
}

/* -----------------------------------------------------------------------------
   11. Admin controls
   ----------------------------------------------------------------------------- */
.admin-del {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 24px;
    height: 24px;
    border-radius: var(--radius-full);
    background: var(--color-danger);
    border: none;
    color: #fff;
    font-size: var(--text-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0.65;
    transition: opacity var(--transition);
}

.admin-del:hover { opacity: 1; }

.admin-bar {
    display: none;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background: rgba(239, 68, 68, 0.07);
    border: 1px dashed rgba(239, 68, 68, 0.3);
    border-radius: var(--radius-sm);
}

.admin-bar--visible { display: flex; }

.admin-label {
    font-size: var(--text-xs);
    color: var(--color-danger);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    flex: 1;
}

.admin-btn {
    font-size: var(--text-xs);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    border: 1px solid;
    font-weight: 600;
    letter-spacing: 0.04em;
    transition: background-color var(--transition);
}

.admin-btn--test {
    background: rgba(56, 189, 248, 0.1);
    border-color: rgba(56, 189, 248, 0.35);
    color: var(--color-accent);
}

.admin-btn--test:hover { background: rgba(56, 189, 248, 0.2); }

.admin-btn--reset {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.35);
    color: var(--color-danger);
}

.admin-btn--reset:hover { background: rgba(239, 68, 68, 0.2); }

.admin-lock {
    cursor: pointer;
    font-size: var(--text-sm);
    margin-left: 10px;
    opacity: 0;
    user-select: none;
    vertical-align: middle;
    display: inline-block;
    transition: opacity var(--transition);
}

.header__title:hover .admin-lock          { opacity: 0.5; }
.admin-lock--active                        { opacity: 1; }
.header__title:hover .admin-lock--active   { opacity: 1; }

/* -----------------------------------------------------------------------------
   12. Skeleton loading & Animations
   ----------------------------------------------------------------------------- */
@keyframes skeleton-pulse {
    0%, 100% { opacity: 0.3; }
    50%       { opacity: 0.65; }
}

.skeleton {
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-sm);
    animation: skeleton-pulse 1.6s ease-in-out infinite;
}

.skeleton-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-left: 4px solid rgba(56, 189, 248, 0.15);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.skeleton-card__head  { height: 14px; width: 60px; }
.skeleton-card__grid  { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); }
.skeleton-card__field { height: 36px; }
.skeleton-log         { height: 44px; border-radius: var(--radius-md); }

@keyframes dot-pulse {
    0%, 100% { opacity: 1;   transform: scale(1);    }
    50%       { opacity: 0.5; transform: scale(0.85); }
}

/* -----------------------------------------------------------------------------
   13. Responsive
   ----------------------------------------------------------------------------- */
@media (max-width: 1100px) {
    .dashboard {
        grid-template-columns: 1fr;
    }

    .col--stats { order: -1; }

    .page {
        padding: var(--space-5) var(--space-4);
    }
}

@media (max-width: 600px) {
    .header {
        flex-direction: row;
        flex-wrap: wrap;
        align-items: center;
        justify-content: space-between;
    }
    .header__title {
        padding: 0 !important; /* Removes title padding */
        margin: 0 !important;  /* Removes title margin */
    }
    .header__brand {
        min-width: 0;
    }
    .header__badges {
        width: 100%;
        justify-content: center;
        margin-top: 8px;
    }
    .header-badge {
        flex: 1;
        text-align: center;
    }
    .trip-card__grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }

    .header__nav {
        gap: 0;
        display: flex;
        width: auto;
        flex-shrink: 0;
    }

    .header__nav .nav-tab {
        padding: 6px 7px !important;
        font-size: var(--text-sm) !important;
        color: var(--color-text) !important;
    }

    .nav-tab.nav-tab--active {
        display: none;
    }
}

/* =============================================================================
   Header nav tabs (Dashboard / Deep Stats)
   ============================================================================= */

.header__nav {
    display: flex;
    align-items: center;
    gap: 2px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 3px;
}

.nav-tab {
    padding: 5px 16px;
    border-radius: calc(var(--radius-md) - 3px);
    font-size: var(--text-base);
    font-weight: 500;
    color: var(--color-text-muted);
    cursor: pointer;
    border: none;
    background: transparent;
    transition: color var(--transition), background-color var(--transition);
    letter-spacing: 0.01em;
    white-space: nowrap;
}

.nav-tab:hover               { color: var(--color-text); }
.nav-tab--active             { color: var(--color-text); background: var(--color-surface-hover); }

/* =============================================================================
   Stats view — layout shell
   ============================================================================= */

.stats-view {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    padding-bottom: var(--space-8);
}


/* =============================================================================
   KPI record cards
   ============================================================================= */

.kpi-row {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--space-3);
}

.kpi-card {
    --kpi-accent: var(--color-accent); /* default; overridden per-card via inline style */
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    position: relative;
    overflow: hidden;
    transition: border-color var(--transition);
}

/* Coloured top-edge glow line, colour set per-card via --kpi-accent */
.kpi-card::before {
    content: '';
    position: absolute;
    inset-inline: 0;
    top: 0;
    height: 1px;
    background: linear-gradient(
            to right,
            transparent,
            var(--kpi-accent, var(--color-accent)) 50%,
            transparent
    );
}

.kpi-card:hover { border-color: var(--color-border-hover); }

.kpi-card__label {
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: var(--space-2);
}

.kpi-card__value {
    font-family: var(--font-mono), monospace;
    font-size: var(--text-kpi);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1;
}

.kpi-card__unit {
    font-family: var(--font-sans), sans-serif;
    font-size: var(--text-sm);
    font-weight: 500;
    margin-left: 3px;
    opacity: 0.5;
}

@media (max-width: 1024px) {
    .kpi-row { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 600px) {
    .kpi-row { grid-template-columns: repeat(2, 1fr); }
}


/* =============================================================================
   Chart cards
   ============================================================================= */

.chart-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-5);
}

.chart-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5) var(--space-6);
    position: relative;
    overflow: hidden;
    transition: border-color var(--transition);
}

.chart-card:hover { border-color: var(--color-border-hover); }

/* Accent top bar on specific cards */
.chart-card--line-danger::before,
.chart-card--line-warning::before {
    content: '';
    position: absolute;
    inset-inline: 0;
    top: 0;
    height: 2px;
}

.chart-card--line-danger::before  { background: linear-gradient(to right, #f43f5e, transparent); }
.chart-card--line-warning::before { background: linear-gradient(to right, #f59e0b, transparent); }

.chart-card__header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-4);
    gap: var(--space-4);
}

.chart-card__title {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 2px;
}

.chart-card__sub {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

/* Small badge (L/100, Scatter, etc.) */
.chart-badge {
    font-family: var(--font-mono), monospace;
    font-size: var(--text-xs);
    font-weight: 500;
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    flex-shrink: 0;
}

.chart-badge--sky    { color: var(--color-accent);  background: rgba(56,189,248,0.1); }
.chart-badge--green  { color: var(--color-success); background: rgba(1,230,118,0.1); }
.chart-badge--violet { color: #a78bfa;              background: rgba(139,92,246,0.1); }

/* KPI figure in card header (used for peak/latest values) */
.chart-card__kpi         { text-align: right; flex-shrink: 0; }
.chart-card__kpi-value   { font-family: var(--font-mono), monospace; font-size: var(--text-data); font-weight: 700; letter-spacing: -0.02em; }
.chart-card__kpi-label   { font-size: var(--text-xs); letter-spacing: 0.08em; color: var(--color-text-muted); margin-top: 1px; }

/* Odometer chart legend */
.chart-card__legend { display: flex; align-items: center; gap: 6px; font-size: var(--text-xs); color: var(--color-text-dim); flex-shrink: 0; }
.chart-legend-dot   { display: inline-block; width: 10px; height: 3px; border-radius: 2px; }
.chart-legend-dash  { display: inline-block; width: 12px; border-top: 2px dashed #475569; }

/* Canvas wrapper — fixes Chart.js height in flex/grid */
.chart-canvas-wrap {
    position: relative;
    height: 240px;
}

@media (max-width: 900px) {
    .chart-grid { grid-template-columns: 1fr; }
    .chart-card {
        padding: var(--space-2) var(--space-1); /* 16px top/bot, 12px left/right */
    }
    body.stats-active .header__badges {
        display: none;
    }
}

/* =============================================================================
   Stats footer
   ============================================================================= */

.stats-footer {
    text-align: center;
    font-size: var(--text-xs);
    color: var(--color-text-dim);
    letter-spacing: 0.05em;
    padding-top: var(--space-2);
}

/* =============================================================================
   Misfire chart toggle buttons
   ============================================================================= */

.mf-toggle {
    padding: 3px 10px;
    font-size: var(--text-xs);
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    background: transparent;
    color: var(--color-text-dim);
    cursor: pointer;
    letter-spacing: 0.03em;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
    font-family: var(--font-sans), sans-serif;
}

.mf-toggle--on {
    background: rgba(244, 63, 94, 0.18);
    color: #fb7185;
    border-color: rgba(244, 63, 94, 0.35);
}