/* ==========================================================================
   Du code au web — design tokens
   ========================================================================== */
@font-face {
    font-family: "Inter Tight";
    src: url("../fonts/inter-tight.woff2") format("woff2");
    font-weight: 100 900;
    font-display: swap;
}
@font-face {
    font-family: "JetBrains Mono";
    src: url("../fonts/jetbrains-mono.woff2") format("woff2");
    font-weight: 100 800;
    font-display: swap;
}

:root {
    --imperial: #001D51;
    --imperial-2: #002a73;
    --black: #000;
    --ink: #eef2fb;
    --ink-2: rgba(238, 242, 251, .62);
    --ink-3: rgba(238, 242, 251, .38);
    --line: rgba(255, 255, 255, .09);
    --line-2: rgba(255, 255, 255, .16);
    --glass: rgba(4, 14, 36, .58);
    --glass-2: rgba(255, 255, 255, .04);
    --accent: #6f9bff;
    --ok: #5ee6a0;
    --warn: #ffc56b;
    --err: #ff7a7a;
    --radius: 22px;
    --radius-sm: 12px;
    --nav-w: 96px;
    --font: "Inter Tight", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
    --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
    --ease: cubic-bezier(.2, .7, .1, 1);
    color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    min-height: 100vh;
    min-height: 100dvh;
    font-family: var(--font);
    font-size: 15px;
    line-height: 1.5;
    color: var(--ink);
    background-color: var(--black);
    background-image:
        radial-gradient(120% 90% at 0% 0%, var(--imperial-2) 0%, var(--imperial) 32%, rgba(0, 29, 81, 0) 70%),
        linear-gradient(160deg, var(--imperial) 0%, #000a1d 55%, var(--black) 100%);
    background-attachment: fixed;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}
a { color: inherit; }
code, .mono { font-family: var(--mono); font-size: .92em; }
.small { font-size: 13px; color: var(--ink-2); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* Typography ---------------------------------------------------------------- */
.eyebrow {
    margin: 0;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: var(--ink-2);
}
.display {
    margin: 0;
    font-weight: 500;
    font-size: clamp(3.4rem, 12vw, 11.5rem);
    line-height: .88;
    letter-spacing: -.055em;
}
.display span { color: var(--ink-3); }
.display--md { font-size: clamp(2.8rem, 8vw, 6.5rem); }
.h2 { margin: 2px 0 0; font-size: 28px; font-weight: 500; letter-spacing: -.03em; line-height: 1.1; }

/* Side navigation — vertically centred on the left ---------------------------- */
.sidenav {
    position: fixed;
    z-index: 1000;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 18px;
    padding: 16px 10px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(0, 10, 29, .55);
    backdrop-filter: blur(18px) saturate(140%);
    -webkit-backdrop-filter: blur(18px) saturate(140%);
}
.sidenav__brand {
    font-weight: 700;
    font-size: 12px;
    letter-spacing: .02em;
    text-decoration: none;
}
.sidenav__brand span { color: var(--accent); }
.sidenav__list { list-style: none; margin: 0; padding: 12px 0; display: flex; flex-direction: column; gap: 6px; border-block: 1px solid var(--line); }
.sidenav__foot form { margin: 0; }
.sidenav__link {
    position: relative;
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border: 0;
    border-radius: 50%;
    background: transparent;
    color: var(--ink-2);
    cursor: pointer;
    transition: background .3s var(--ease), color .3s var(--ease);
}
.sidenav__link svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }
.sidenav__link:hover { color: var(--ink); background: var(--glass-2); }
.sidenav__link.is-active { color: var(--black); background: var(--ink); }
.sidenav__label {
    position: absolute;
    left: calc(100% + 18px);
    top: 50%;
    transform: translate(-6px, -50%);
    padding: 7px 12px;
    border-radius: 999px;
    background: var(--ink);
    color: var(--black);
    font-size: 12px;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity .25s var(--ease), transform .25s var(--ease);
}
.sidenav__label em { font-style: normal; color: rgba(0, 0, 0, .45); margin-right: 8px; font-family: var(--mono); font-size: 11px; }
.sidenav__link:hover .sidenav__label,
.sidenav__link:focus-visible .sidenav__label { opacity: 1; transform: translate(0, -50%); }

/* Tiles ---------------------------------------------------------------------- */
.tile {
    position: relative;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--glass-2);
    padding: 24px;
}
.tile--glass {
    background: var(--glass);
    backdrop-filter: blur(22px) saturate(150%);
    -webkit-backdrop-filter: blur(22px) saturate(150%);
    box-shadow: 0 20px 60px -30px rgba(0, 0, 0, .8), inset 0 1px 0 rgba(255, 255, 255, .05);
}
.tile__meta { color: var(--ink-2); font-size: 13px; }
.tile--link {
    display: flex;
    flex-direction: column;
    min-height: 200px;
    text-decoration: none;
    overflow: hidden;
    transition: border-color .4s var(--ease), transform .4s var(--ease), background .4s var(--ease);
}
.tile--link::after {
    content: "↗";
    position: absolute;
    right: 22px;
    top: 18px;
    font-size: 20px;
    color: var(--ink-3);
    transition: color .3s var(--ease), transform .3s var(--ease);
}
.tile--link:hover { border-color: var(--line-2); background: rgba(255, 255, 255, .06); transform: translateY(-3px); }
.tile--link:hover::after { color: var(--ink); transform: translate(3px, -3px); }
.tile__index { font-family: var(--mono); font-size: 12px; color: var(--ink-3); }
.tile__title { margin-top: auto; font-size: 44px; font-weight: 500; letter-spacing: -.045em; line-height: 1; }
.tile--link .tile__meta { margin-top: 8px; }

/* Home ----------------------------------------------------------------------- */
.home {
    min-height: 100vh;
    min-height: 100dvh;
    display: grid;
    grid-template-rows: auto 1fr auto;
    gap: 40px;
    padding: 32px 40px 40px calc(var(--nav-w) + 40px);
}
.home__head { display: flex; justify-content: space-between; }
.home .display { align-self: center; }
.home__tiles { display: grid; grid-template-columns: repeat(2, minmax(0, 340px)); gap: 16px; }

/* Generic page ---------------------------------------------------------------- */
.page { padding: 48px 40px 60px calc(var(--nav-w) + 40px); max-width: 1500px; }
.page__head { margin-bottom: 40px; }
.page__head .eyebrow { margin-bottom: 14px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 16px; }
.tile--wide { grid-column: 1 / -1; }
.tile--hero { display: flex; flex-direction: column; gap: 6px; }
.version { margin: 18px 0 0; font-size: clamp(56px, 7vw, 96px); font-weight: 500; letter-spacing: -.06em; line-height: .9; }
.version--muted { color: var(--ink-3); }
.link { color: var(--accent); text-decoration: none; margin-top: auto; padding-top: 16px; font-weight: 500; }
.link:hover { text-decoration: underline; }
.code {
    margin: 12px 0 0;
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    background: rgba(0, 0, 0, .35);
    border: 1px solid var(--line);
    font-family: var(--mono);
    font-size: 12px;
    color: var(--ink-2);
    white-space: pre-wrap;
    word-break: break-all;
}

/* Forms ---------------------------------------------------------------------- */
.form { display: flex; flex-direction: column; gap: 14px; }
.form__row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.form__row--end { display: flex; align-items: center; justify-content: flex-end; gap: 18px; flex-wrap: wrap; }
.field { display: flex; flex-direction: column; gap: 6px; font-size: 12px; color: var(--ink-2); }
.field--inline { flex-direction: row; align-items: center; gap: 8px; }
.field input, .field select, .field textarea, .vtile__select {
    width: 100%;
    min-width: 0;
    padding: 11px 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: rgba(0, 0, 0, .3);
    color: var(--ink);
    font: inherit;
    font-size: 14px;
    transition: border-color .2s;
}
.field--inline input, .field--inline select { width: auto; padding: 8px 10px; font-size: 13px; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--accent); outline: none; }
.field textarea { resize: vertical; }
.check { display: inline-flex; gap: 8px; align-items: center; font-size: 13px; color: var(--ink-2); cursor: pointer; }
.check input { accent-color: var(--accent); width: 16px; height: 16px; }
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 18px;
    border: 1px solid var(--line-2);
    border-radius: 999px;
    background: transparent;
    color: var(--ink);
    font: inherit;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: background .2s, color .2s, border-color .2s;
}
.btn:hover { background: rgba(255, 255, 255, .08); }
.btn--primary { background: var(--ink); color: var(--black); border-color: var(--ink); }
.btn--primary:hover { background: #fff; }
.btn--sm { padding: 6px 12px; font-size: 12px; }
.btn--danger:hover { border-color: var(--err); color: var(--err); background: transparent; }
.alert { margin: 0 0 20px; padding: 12px 16px; border-radius: var(--radius-sm); font-size: 13px; border: 1px solid; }
.alert--ok { border-color: rgba(94, 230, 160, .3); background: rgba(94, 230, 160, .08); color: var(--ok); }
.alert--error { border-color: rgba(255, 122, 122, .3); background: rgba(255, 122, 122, .08); color: var(--err); }

.pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 5px 11px;
    border-radius: 999px;
    border: 1px solid var(--line-2);
    font-size: 12px;
    color: var(--ink-2);
}
.pill::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--ink-3); }
.pill--on { color: var(--ok); border-color: rgba(94, 230, 160, .35); }
.pill--on::before { background: var(--ok); box-shadow: 0 0 0 4px rgba(94, 230, 160, .15); }
.pill--idle { color: var(--warn); border-color: rgba(255, 197, 107, .35); }
.pill--idle::before { background: var(--warn); }
.pill--off::before { background: var(--err); }

/* Login ---------------------------------------------------------------------- */
.login { min-height: 100vh; min-height: 100dvh; display: grid; place-items: center; padding: 24px 24px 24px calc(var(--nav-w) + 24px); }
.login__card { width: min(420px, 100%); display: flex; flex-direction: column; gap: 16px; padding: 36px; }
.login__card .h2 { margin-bottom: 8px; font-size: 40px; }
.login__card .btn { margin-top: 8px; padding: 13px; }

/* Tables --------------------------------------------------------------------- */
.tablewrap { overflow: auto; border-radius: var(--radius-sm); border: 1px solid var(--line); margin-top: 14px; }
.dtable { width: 100%; border-collapse: collapse; font-size: 13px; }
.dtable th, .dtable td { padding: 10px 14px; text-align: left; white-space: nowrap; border-bottom: 1px solid var(--line); }
.dtable th {
    position: sticky;
    top: 0;
    z-index: 1;
    background: #030d24;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--ink-2);
    cursor: pointer;
    user-select: none;
}
.dtable th[data-sort]::after { content: " ↕"; color: var(--ink-3); }
.dtable th[data-sort="asc"]::after { content: " ↑"; color: var(--ink); }
.dtable th[data-sort="desc"]::after { content: " ↓"; color: var(--ink); }
.dtable td { font-family: var(--mono); font-size: 12px; color: var(--ink); }
.dtable tbody tr:hover td { background: rgba(255, 255, 255, .03); }
.dtable tbody tr:last-child td { border-bottom: 0; }
.dtable__empty { text-align: center !important; color: var(--ink-3) !important; font-family: var(--font) !important; padding: 36px !important; }
.actions { display: flex; gap: 8px; justify-content: flex-end; }
.actions form { margin: 0; }

/* ==========================================================================
   Maps
   ========================================================================== */
.page-maps { overflow: hidden; }
.maps { position: fixed; inset: 0; }
.maps__map { position: absolute; inset: 0; background: #000814; }
.maps__map::after {
    /* imperial blue wash so the map blends with the brand gradient */
    content: "";
    position: absolute;
    inset: 0;
    z-index: 401;
    pointer-events: none;
    background: linear-gradient(120deg, rgba(0, 29, 81, .45) 0%, rgba(0, 29, 81, 0) 45%, rgba(0, 0, 0, .35) 100%);
}
.leaflet-container { font-family: var(--font); background: #000814; }
/* Dark theme from standard OSM tiles: invert, then pull colours towards imperial blue */
.leaflet-tile-pane { filter: invert(1) hue-rotate(185deg) brightness(.82) contrast(.92) saturate(.45); }
.leaflet-control-attribution { background: rgba(0, 0, 0, .5) !important; color: var(--ink-3) !important; font-size: 10px; }
.leaflet-control-attribution a { color: var(--ink-2) !important; }
.leaflet-bar { border: 1px solid var(--line) !important; border-radius: 14px !important; overflow: hidden; box-shadow: none !important; }
.leaflet-bar a { background: var(--glass) !important; color: var(--ink) !important; border-color: var(--line) !important; backdrop-filter: blur(12px); }
.leaflet-bar a:hover { background: rgba(255, 255, 255, .1) !important; }

.car-marker { position: relative; width: 44px; height: 44px; }
.car-marker__pulse {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: rgba(111, 155, 255, .25);
    animation: pulse 2.4s var(--ease) infinite;
}
.car-marker__dot {
    position: absolute;
    inset: 12px;
    border-radius: 50%;
    background: var(--ink);
    border: 3px solid var(--imperial);
    box-shadow: 0 0 0 1px rgba(255, 255, 255, .4), 0 6px 20px rgba(0, 0, 0, .6);
}
.car-marker__arrow {
    position: absolute;
    inset: 0;
    transition: transform .6s var(--ease);
}
.car-marker__arrow::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 0;
    margin-left: -6px;
    border: 6px solid transparent;
    border-bottom: 9px solid var(--ink);
    border-top: 0;
}
.car-marker.is-stopped .car-marker__arrow { display: none; }
.car-marker.is-stopped .car-marker__pulse { animation: none; opacity: .5; }
@keyframes pulse { 0% { transform: scale(.6); opacity: 1; } 100% { transform: scale(1.6); opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .car-marker__pulse { animation: none; } * { transition-duration: 0s !important; } }

/* Floating vehicle tile */
.vtile {
    position: absolute;
    z-index: 500;
    top: 24px;
    right: 24px;
    width: 340px;
    max-height: calc(100% - 48px);
    overflow: auto;
    padding: 22px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    transition: opacity .35s var(--ease), transform .35s var(--ease);
}
.vtile__head { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; }
.vtile__name { margin: 4px 0 0; font-size: 26px; font-weight: 500; letter-spacing: -.035em; line-height: 1.1; }
.vtile__select { margin-top: 4px; font-size: 20px; font-weight: 500; padding: 6px 10px; }
.vtile__status { display: flex; align-items: center; justify-content: space-between; margin-top: 16px; }
.vtile__ago { font-size: 12px; color: var(--ink-3); }
.vtile__speed { margin: 18px 0 10px; font-size: 76px; font-weight: 500; letter-spacing: -.06em; line-height: .9; font-variant-numeric: tabular-nums; }
.vtile__speed small { font-size: 14px; letter-spacing: 0; margin-left: 8px; color: var(--ink-2); font-weight: 400; }
.vtile__empty { color: var(--ink-2); font-size: 13px; margin: 16px 0 0; }
.vtile__empty code { display: inline-block; margin-top: 6px; color: var(--ink); }

.gauge { margin: 6px 0 18px; }
.gauge__bar { height: 4px; border-radius: 4px; background: rgba(255, 255, 255, .1); overflow: hidden; }
.gauge__bar span { display: block; height: 100%; width: 0; border-radius: 4px; background: linear-gradient(90deg, var(--accent), var(--ink)); transition: width .8s var(--ease); }
.gauge__bar span.is-low { background: var(--warn); }
.gauge__legend { display: flex; justify-content: space-between; margin-top: 8px; font-size: 12px; color: var(--ink-2); }
.gauge__legend span:last-child { color: var(--ink); font-family: var(--mono); }

.metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin: 0; border-radius: var(--radius-sm); overflow: hidden; background: var(--line); }
.metrics div { background: rgba(3, 12, 32, .92); padding: 11px 12px; }
.metrics dt { font-size: 10px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); }
.metrics dd { margin: 3px 0 0; font-family: var(--mono); font-size: 13px; }

/* "+" button */
.plus {
    position: relative;
    flex: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--line-2);
    background: var(--ink);
    cursor: pointer;
    transition: transform .4s var(--ease), background .2s;
}
.plus span::before, .plus span::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    width: 14px;
    height: 1.5px;
    margin: -.75px 0 0 -7px;
    background: var(--black);
    transition: transform .4s var(--ease);
}
.plus span::after { transform: rotate(90deg); }
.plus:hover { transform: rotate(90deg); }
.plus--open span::after { transform: rotate(0deg); }
.plus--open:hover { transform: none; }

/* Expanded data panel */
.dpanel {
    position: absolute;
    z-index: 600;
    top: 16px;
    right: 16px;
    bottom: 16px;
    left: calc(var(--nav-w) + 24px);
    max-width: 1320px;
    margin-left: auto;
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 24px 26px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(2, 10, 28, .82);
    overflow: auto;
    animation: panel-in .45s var(--ease);
}
.dpanel[hidden] { display: none; }
@keyframes panel-in { from { opacity: 0; transform: translateY(12px) scale(.985); } to { opacity: 1; transform: none; } }
.page-maps.panel-open .vtile { opacity: 0; transform: translateX(20px); pointer-events: none; }
.dpanel__head { display: flex; justify-content: space-between; align-items: flex-start; }
.dpanel__note { margin: 0; font-size: 12px; color: var(--ink-3); }
.dpanel .tablewrap { flex: 1 1 260px; min-height: 220px; margin-top: 0; }

.toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.seg { display: inline-flex; padding: 3px; border-radius: 999px; border: 1px solid var(--line); }
.seg button { border: 0; background: transparent; color: var(--ink-2); font: inherit; font-size: 12px; padding: 6px 12px; border-radius: 999px; cursor: pointer; }
.seg button.is-active { background: var(--ink); color: var(--black); }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 10px; }
.stat { padding: 14px 16px; border-radius: var(--radius-sm); border: 1px solid var(--line); background: rgba(255, 255, 255, .025); }
.stat dt { font-size: 10px; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); }
.stat dd { margin: 6px 0 0; font-size: 24px; font-weight: 500; letter-spacing: -.03em; }
.stat dd small { font-size: 12px; color: var(--ink-2); margin-left: 4px; letter-spacing: 0; }

.chartbox { border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 12px 14px 10px; }
.chartbox__controls { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.chartbox__x { color: var(--ink-3); }
.chart { display: block; width: 100%; height: 180px; margin-top: 8px; }
.chart .grid-line { stroke: var(--line); stroke-width: 1; vector-effect: non-scaling-stroke; }
.chart .series-a { fill: none; stroke: var(--ink); stroke-width: 1.6; vector-effect: non-scaling-stroke; }
.chart .series-b { fill: none; stroke: var(--accent); stroke-width: 1.6; vector-effect: non-scaling-stroke; stroke-dasharray: 5 4; }
.chart .area-a { fill: rgba(238, 242, 251, .06); stroke: none; }
.chart__legend { display: flex; gap: 18px; font-size: 12px; color: var(--ink-2); font-family: var(--mono); flex-wrap: wrap; }
.chart__legend .a::before, .chart__legend .b::before { content: ""; display: inline-block; width: 14px; height: 2px; margin-right: 6px; vertical-align: middle; background: var(--ink); }
.chart__legend .b::before { background: var(--accent); }

.columns summary { cursor: pointer; font-size: 12px; color: var(--ink-2); letter-spacing: .1em; text-transform: uppercase; }
.columns__list { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 5px 10px; border: 1px solid var(--line); border-radius: 999px; font-size: 12px; color: var(--ink-2); cursor: pointer; }
.chip input { accent-color: var(--accent); margin: 0; }
.chip:has(input:checked) { color: var(--ink); border-color: var(--line-2); background: rgba(255, 255, 255, .05); }

.trace { stroke: var(--accent); }

/* Responsive ------------------------------------------------------------------ */
@media (max-width: 760px) {
    :root { --nav-w: 0px; }
    .sidenav {
        top: auto;
        bottom: 14px;
        left: 50%;
        transform: translateX(-50%);
        flex-direction: row;
        padding: 8px 14px;
    }
    .sidenav__list { flex-direction: row; padding: 0 10px; border-block: 0; border-inline: 1px solid var(--line); }
    .sidenav__label { display: none; }
    .home { padding: 24px 16px 110px; }
    .home__tiles { grid-template-columns: 1fr; }
    .page { padding: 32px 16px 110px; }
    .grid { grid-template-columns: 1fr; }
    .form__row { grid-template-columns: 1fr; }
    .login { padding: 16px 16px 100px; }
    .vtile { top: auto; right: 12px; left: 12px; bottom: 90px; width: auto; max-height: 55%; padding: 18px; }
    .vtile__speed { font-size: 56px; }
    .dpanel { inset: 10px 10px 86px 10px; padding: 18px; }
}