/* ============================================================================
   Rail Buddy — "paper + terracotta" theme, layered on Bootstrap 5.3.3.

   The look comes from the Claude Design comps: a warm sandy paper surface,
   a single terracotta accent, white (light) / espresso (dark) panels, and two
   typefaces — Archivo for text, IBM Plex Mono for technical labels & numbers.

   Everything is driven through Bootstrap's --bs-* theme variables so the chrome
   AND the strip canvas (driver.js readTheme) follow data-bs-theme automatically.
   ========================================================================== */

/* ---- Self-hosted fonts (latin) — bundled so the PWA renders fully offline,
   with no third-party (Google Fonts) dependency. font-display:swap paints with
   the system fallback first, then swaps in without blocking. ---------------- */
@font-face { font-family: "Archivo"; font-style: normal; font-weight: 400; font-display: swap; src: url("/vendor/fonts/archivo-400.woff2") format("woff2"); }
@font-face { font-family: "Archivo"; font-style: normal; font-weight: 500; font-display: swap; src: url("/vendor/fonts/archivo-500.woff2") format("woff2"); }
@font-face { font-family: "Archivo"; font-style: normal; font-weight: 600; font-display: swap; src: url("/vendor/fonts/archivo-600.woff2") format("woff2"); }
@font-face { font-family: "Archivo"; font-style: normal; font-weight: 700; font-display: swap; src: url("/vendor/fonts/archivo-700.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-style: normal; font-weight: 400; font-display: swap; src: url("/vendor/fonts/plex-mono-400.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-style: normal; font-weight: 500; font-display: swap; src: url("/vendor/fonts/plex-mono-500.woff2") format("woff2"); }
@font-face { font-family: "IBM Plex Mono"; font-style: normal; font-weight: 600; font-display: swap; src: url("/vendor/fonts/plex-mono-600.woff2") format("woff2"); }

/* ---- Typography (theme-independent) -------------------------------------- */
:root {
    --bs-font-sans-serif: "Archivo", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    --bs-font-monospace: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    --bs-body-font-family: var(--bs-font-sans-serif);
}

/* ---- Light (default) palette --------------------------------------------- */
:root,
[data-bs-theme="light"] {
    --rb-terra: #b15e36;
    --rb-terra-strong: #97492a;
    --rb-rail-dim: #ccc0b1;
    --rb-geo-bg: #e6d2c2;
    --rb-panel: #ffffff;
    --rb-field: #f3ede4;
    --rb-active-ring: #dd9a3c;
    --rb-card-shadow: 0 1px 2px rgba(42, 34, 27, .04), 0 2px 6px rgba(42, 34, 27, .07);

    --bs-body-bg: #f6f1ea;
    --bs-body-color: #2a231c;
    --bs-emphasis-color: #211b15;
    --bs-emphasis-color-rgb: 33, 27, 21;
    --bs-secondary-color: #8a7e71;
    --bs-secondary-bg: #ece4da;
    --bs-tertiary-color: #a99e8f;
    --bs-tertiary-bg: #efe8df;
    --bs-border-color: #e4dacc;
    --bs-border-color-translucent: rgba(42, 34, 27, .12);
    --bs-heading-color: #211b15;

    --bs-link-color: #97492a;
    --bs-link-color-rgb: 151, 73, 42;
    --bs-link-hover-color: #7c3b20;
    --bs-link-hover-color-rgb: 124, 59, 32;

    --bs-primary: #b15e36;
    --bs-primary-rgb: 177, 94, 54;
    --bs-primary-text-emphasis: #6e3a21;
    --bs-primary-bg-subtle: #f3e2d7;
    --bs-primary-border-subtle: #e2bfa8;
}

/* ---- Dark palette -------------------------------------------------------- */
[data-bs-theme="dark"] {
    --rb-terra: #d2814f;
    --rb-terra-strong: #b96a3c;
    --rb-rail-dim: #3a2e22;
    --rb-geo-bg: #1d130b;
    --rb-panel: #231a12;
    --rb-field: #1f1710;
    --rb-active-ring: #efb45f;
    --rb-card-shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 2px 8px rgba(0, 0, 0, .38);

    --bs-body-bg: #1a140e;
    --bs-body-color: #ece1d4;
    --bs-emphasis-color: #f6efe4;
    --bs-emphasis-color-rgb: 246, 239, 228;
    --bs-secondary-color: #a4978a;
    --bs-secondary-bg: #141009;
    --bs-tertiary-color: #897b6c;
    --bs-tertiary-bg: #221a12;
    --bs-border-color: #33271c;
    --bs-border-color-translucent: rgba(236, 225, 212, .12);
    --bs-heading-color: #f6efe4;

    --bs-link-color: #e0a172;
    --bs-link-color-rgb: 224, 161, 114;
    --bs-link-hover-color: #ecb98f;
    --bs-link-hover-color-rgb: 236, 185, 143;

    --bs-primary: #d2814f;
    --bs-primary-rgb: 210, 129, 79;
    --bs-primary-text-emphasis: #e8b288;
    --bs-primary-bg-subtle: #2c1d12;
    --bs-primary-border-subtle: #5c3a23;
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ---- Mono "eyebrow" labels (the small uppercase technical captions) ------- */
.eyebrow {
    font-family: var(--bs-font-monospace);
    font-size: .68rem;
    font-weight: 500;
    letter-spacing: .15em;
    text-transform: uppercase;
    color: var(--bs-secondary-color);
    margin-bottom: 0;
}
.mono { font-family: var(--bs-font-monospace); }

/* ---- Top bar ------------------------------------------------------------- */
.rb-topbar {
    background: var(--rb-panel);
    border-bottom: 1px solid var(--bs-border-color);
}
.rb-topbar .navbar-brand {
    font-weight: 600;
    letter-spacing: -.01em;
    color: var(--bs-emphasis-color);
}
.rb-topbar .rb-region {
    color: var(--bs-tertiary-color);
    letter-spacing: .14em;
}
.rb-topbar .nav-link {
    color: var(--bs-secondary-color);
    font-weight: 500;
    padding: .15rem 0;
    border-bottom: 2px solid transparent;
}
.rb-topbar .nav-link:hover { color: var(--bs-emphasis-color); }
.rb-topbar .nav-link.active {
    color: var(--bs-emphasis-color);
    border-bottom-color: var(--rb-terra);
}

/* ---- Cards & panels ------------------------------------------------------ */
.card {
    --bs-card-bg: var(--rb-panel);
    --bs-card-border-color: var(--bs-border-color);
    --bs-card-border-radius: .75rem;
    --bs-card-inner-border-radius: calc(.75rem - 1px);
    box-shadow: var(--rb-card-shadow);
}

/* ---- Buttons ------------------------------------------------------------- */
.btn-primary {
    --bs-btn-bg: var(--rb-terra);
    --bs-btn-border-color: var(--rb-terra);
    --bs-btn-hover-bg: var(--rb-terra-strong);
    --bs-btn-hover-border-color: var(--rb-terra-strong);
    --bs-btn-active-bg: var(--rb-terra-strong);
    --bs-btn-active-border-color: var(--rb-terra-strong);
    --bs-btn-disabled-bg: var(--rb-terra);
    --bs-btn-disabled-border-color: var(--rb-terra);
    --bs-btn-color: #fff;
    --bs-btn-hover-color: #fff;
    --bs-btn-active-color: #fff;
    --bs-btn-disabled-color: #fff;
}
.btn-secondary {
    --bs-btn-bg: #756857;
    --bs-btn-border-color: #756857;
    --bs-btn-hover-bg: #645847;
    --bs-btn-hover-border-color: #645847;
    --bs-btn-active-bg: #645847;
    --bs-btn-active-border-color: #645847;
    --bs-btn-disabled-bg: #756857;
    --bs-btn-disabled-border-color: #756857;
    --bs-btn-color: #fff;
    --bs-btn-hover-color: #fff;
    --bs-btn-active-color: #fff;
}
[data-bs-theme="dark"] .btn-secondary {
    --bs-btn-bg: #4a4034;
    --bs-btn-border-color: #4a4034;
    --bs-btn-hover-bg: #5a4e3f;
    --bs-btn-hover-border-color: #5a4e3f;
    --bs-btn-active-bg: #5a4e3f;
    --bs-btn-active-border-color: #5a4e3f;
}
.btn-outline-secondary {
    --bs-btn-color: var(--bs-secondary-color);
    --bs-btn-border-color: var(--bs-border-color);
    --bs-btn-hover-bg: var(--rb-field);
    --bs-btn-hover-border-color: var(--bs-secondary-color);
    --bs-btn-hover-color: var(--bs-emphasis-color);
    --bs-btn-active-bg: var(--rb-field);
    --bs-btn-active-border-color: var(--bs-secondary-color);
    --bs-btn-active-color: var(--bs-emphasis-color);
}
.btn-light {
    --bs-btn-bg: var(--rb-panel);
    --bs-btn-border-color: var(--bs-border-color);
    --bs-btn-color: var(--bs-body-color);
    --bs-btn-hover-bg: var(--rb-field);
    --bs-btn-hover-border-color: var(--bs-border-color);
    --bs-btn-hover-color: var(--bs-emphasis-color);
    --bs-btn-active-bg: var(--rb-field);
    --bs-btn-active-border-color: var(--bs-border-color);
    --bs-btn-active-color: var(--bs-emphasis-color);
}

/* ---- Forms --------------------------------------------------------------- */
.form-control,
.form-select {
    background-color: var(--rb-field);
    border-color: var(--bs-border-color);
}
.form-control:focus,
.form-select:focus {
    border-color: var(--rb-terra);
    box-shadow: 0 0 0 .2rem rgba(var(--bs-primary-rgb), .2);
}
.form-control::placeholder { color: var(--bs-tertiary-color); }
.form-control-color { background-color: var(--rb-field); }

/* ---- List groups --------------------------------------------------------- */
.list-group {
    --bs-list-group-bg: transparent;
    --bs-list-group-border-color: var(--bs-border-color);
    --bs-list-group-color: var(--bs-body-color);
    --bs-list-group-action-color: var(--bs-body-color);
    --bs-list-group-action-hover-bg: var(--rb-field);
    --bs-list-group-action-hover-color: var(--bs-emphasis-color);
    --bs-list-group-action-active-bg: var(--rb-field);
}

/* Home page link cards: a terracotta cue on hover. */
.rb-launch.list-group-item-action {
    border-radius: .6rem !important;
    margin-bottom: .5rem;
    border: 1px solid var(--bs-border-color);
    transition: border-color .15s ease, transform .15s ease;
}
.rb-launch.list-group-item-action:last-child { margin-bottom: 0; }
.rb-launch.list-group-item-action:hover {
    border-color: var(--rb-terra);
    transform: translateX(2px);
}
.rb-launch .rb-launch-go {
    color: var(--rb-terra);
    font-family: var(--bs-font-monospace);
    font-size: 1.1rem;
}

/* ============================================================================
   Driver / Admin app shell
   ========================================================================== */
.sidebar { overflow-y: auto; background: var(--bs-secondary-bg); }
.map-area { position: relative; overflow: hidden; }

@media (min-width: 768px) {
    .sidebar { width: 340px; flex: 0 0 340px; }
}
@media (max-width: 767.98px) {
    .sidebar { max-height: 45vh; }
    .map-area { min-height: 340px; }
}

/* Driver: route header + thin progress bar above the strip / map stage. */
.rb-route {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: .75rem;
    padding: .55rem .9rem .5rem;
    background: var(--rb-panel);
}
.rb-route-main { min-width: 0; }
.rb-route-name {
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: -.015em;
    line-height: 1.15;
    color: var(--bs-emphasis-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.rb-route-km { text-align: right; white-space: nowrap; font-family: var(--bs-font-monospace); }
.rb-km-now { font-size: 1.3rem; font-weight: 600; color: var(--bs-emphasis-color); }
.rb-km-total { font-size: .78rem; color: var(--bs-secondary-color); }
.rb-progress { height: 3px; background: var(--bs-border-color); }
.rb-progress-fill { height: 100%; width: 0; background: var(--rb-terra); transition: width .3s linear; }

.map-stage { position: relative; overflow: hidden; }

/* The strip and geographic map fill the stage; only one is shown at a time. */
#strip-wrap, #map-wrap { position: absolute; inset: 0; background: var(--bs-body-bg); }
#strip-wrap[hidden], #map-wrap[hidden] { display: none; }
#map { width: 100%; height: 100%; }
#strip { width: 100%; height: 100%; display: block; touch-action: none; }

/* Strip zoom stack sits below the corner-button row (drawer ☰) so they never collide. */
.strip-controls { position: absolute; top: 56px; right: 10px; z-index: 600; display: flex; flex-direction: column; gap: 6px; }
.strip-controls .btn { width: 38px; padding: 0; font-size: 20px; line-height: 1.2; box-shadow: var(--rb-card-shadow); }

/* Segmented Strip / Map control — a rounded pill, active tab filled with ink. */
.view-toggle {
    position: absolute;
    top: 10px;
    left: 10px;
    z-index: 600;
    display: inline-flex;
    gap: 3px;
    padding: 3px;
    background: var(--rb-panel);
    border: 1px solid var(--bs-border-color);
    border-radius: 999px;
    box-shadow: var(--rb-card-shadow);
}
.view-toggle .btn {
    border: none;
    border-radius: 999px !important;
    margin: 0;
    padding: .28rem .9rem;
    font-size: .78rem;
    font-weight: 600;
    letter-spacing: -.01em;
    color: var(--bs-secondary-color);
    background: transparent;
}
.view-toggle .btn:hover { color: var(--bs-emphasis-color); background: var(--rb-field); }
.view-toggle .btn.active {
    background: var(--bs-emphasis-color);
    color: var(--rb-panel);
}

/* Active "mode" buttons on Admin (draw line / place point / mark segment). */
.btn[aria-pressed="true"] { outline: 3px solid var(--rb-active-ring); outline-offset: -1px; }

/* ---- Small custom widgets ------------------------------------------------ */
.metric { font-family: var(--bs-font-monospace); font-size: 1.45rem; font-weight: 600; color: var(--bs-emphasis-color); }
.metric small { font-family: var(--bs-font-monospace); font-size: .72rem; font-weight: 400; color: var(--bs-secondary-color); }
.status { font-family: var(--bs-font-monospace); font-size: .72rem; color: var(--bs-secondary-color); min-height: 16px; }
.hint { font-size: .78rem; color: var(--bs-secondary-color); }
.timer {
    display: flex;
    justify-content: space-between;
    gap: .5rem;
    font-size: .82rem;
    padding: 5px 0;
    border-bottom: 1px solid var(--bs-border-color);
}
.timer span:last-child { font-family: var(--bs-font-monospace); white-space: nowrap; }
.timer .cleared { color: var(--bs-secondary-color); }
.timer .ahead { color: var(--rb-terra); font-weight: 600; }

/* ---- PWA-safe text prompt modal (custom — used instead of window.prompt) -- */
.rb-modal-overlay { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.45); z-index: 1080; display: flex; align-items: center; justify-content: center; }
.rb-modal { background: var(--rb-panel); color: var(--bs-body-color); border: 1px solid var(--bs-border-color); border-radius: 12px; padding: 16px; width: min(92vw, 340px); box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4); }
.rb-modal-msg { display: block; font-weight: 600; margin-bottom: 8px; }
.rb-modal-row { display: flex; gap: 8px; margin-top: 12px; }
.rb-modal-row .btn { flex: 1; }

/* Dark mode: dim the bright OSM tiles (overlay lines/markers stay true-colour). */
[data-bs-theme="dark"] .leaflet-tile-pane {
    filter: invert(1) hue-rotate(180deg) brightness(0.92) contrast(0.9);
}

/* ============================================================================
   Driver full-screen overlays — HUD, corner controls, capture FAB, drawer.
   The Driver <main> is now the full-bleed .map-stage; everything below floats
   over it. The Admin page still uses .sidebar / .map-area above (untouched).
   ========================================================================== */

/* Route HUD floats top-centre and never intercepts map gestures. */
.rb-hud {
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 600;
    pointer-events: none;
    max-width: min(60vw, 360px);
    padding: .32rem .7rem;
    border: 1px solid var(--bs-border-color);
    border-radius: 14px;
    box-shadow: var(--rb-card-shadow);
}
@media (max-width: 575.98px) {
    .rb-hud { top: 48px; }          /* drop below the corner controls on phones */
    .rb-rec-banner { top: 96px; }   /* and keep the recording pill clear of the HUD */
}

/* Progress bar pinned to the very top edge of the stage. */
.rb-progress {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    z-index: 601;
    background: rgba(42, 34, 27, .08);
}

/* Corner control buttons (controls drawer + rotation lock). */
.rb-corner-btn {
    position: absolute;
    z-index: 600;
    width: 38px;
    padding: 0;
    font-size: 18px;
    line-height: 1.15;
    box-shadow: var(--rb-card-shadow);
}
.rb-menu-btn { top: 10px; right: 10px; }
.rb-rot-lock { top: 10px; right: 56px; }
.rb-rot-lock[hidden] { display: none; }
.rb-rot-lock[aria-pressed="true"] { outline: 3px solid var(--rb-active-ring); outline-offset: -1px; }

/* Recording banner — pulsing terracotta pill, top-centre. */
.rb-rec-banner {
    position: absolute;
    top: 52px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 650;
    display: flex;
    align-items: center;
    gap: .45rem;
    padding: .3rem .85rem;
    background: var(--rb-terra);
    color: #fff;
    border-radius: 999px;
    font-family: var(--bs-font-monospace);
    font-size: .76rem;
    box-shadow: var(--rb-card-shadow);
}
.rb-rec-banner[hidden] { display: none; }
.rb-rec-dot { width: 8px; height: 8px; border-radius: 50%; background: #fff; animation: rb-pulse 1s ease-in-out infinite; }
@keyframes rb-pulse { 0%, 100% { opacity: 1; } 50% { opacity: .25; } }

/* Capture FAB + its action sheet (bottom-right, clear of the Leaflet zoom control). */
.rb-fab {
    position: absolute;
    right: 16px;
    bottom: 90px;
    z-index: 700;
    width: 56px;
    height: 56px;
    border: none;
    border-radius: 50%;
    background: var(--rb-terra);
    color: #fff;
    font-size: 30px;
    line-height: 1;
    box-shadow: 0 4px 14px rgba(42, 34, 27, .35);
    transition: transform .12s ease, background .15s ease;
}
.rb-fab:hover { background: var(--rb-terra-strong); color: #fff; }
.rb-fab:active { transform: scale(.94); }
.rb-fab.recording { background: #c62828; }
.rb-sheet {
    position: absolute;
    right: 16px;
    bottom: 156px;
    z-index: 700;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
}
.rb-sheet[hidden] { display: none; }
.rb-sheet .btn {
    background: var(--rb-panel);
    border: 1px solid var(--bs-border-color);
    color: var(--bs-body-color);
    font-weight: 500;
    white-space: nowrap;
    box-shadow: var(--rb-card-shadow);
}
.rb-sheet .btn:hover { background: var(--rb-field); }

/* Slide-in controls drawer + scrim. */
.rb-scrim {
    position: absolute;
    inset: 0;
    z-index: 1090;
    background: rgba(0, 0, 0, .4);
}
.rb-scrim[hidden] { display: none; }
.rb-drawer {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 1100;
    width: min(86vw, 340px);
    display: flex;
    flex-direction: column;
    background: var(--bs-secondary-bg);
    border-right: 1px solid var(--bs-border-color);
    box-shadow: 0 0 30px rgba(0, 0, 0, .3);
    transform: translateX(-100%);
    transition: transform .22s ease;
}
.rb-drawer.open { transform: translateX(0); }
.rb-drawer-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
    padding: .55rem .7rem;
    border-bottom: 1px solid var(--bs-border-color);
}
.rb-drawer-body { padding: .5rem; overflow-y: auto; }

/* Train marker (rotated arrow DivIcon) — terracotta, follows the theme. */
.rb-train-icon { color: var(--rb-terra); will-change: transform; }
.rb-train-icon svg { display: block; filter: drop-shadow(0 1px 2px rgba(0, 0, 0, .45)); }

/* Transient toast for capture feedback (bottom-centre). */
.rb-toast {
    position: absolute;
    left: 50%;
    bottom: 24px;
    transform: translateX(-50%) translateY(8px);
    z-index: 1200;
    padding: .4rem .9rem;
    background: var(--bs-emphasis-color);
    color: var(--rb-panel);
    border-radius: 999px;
    font-size: .78rem;
    font-family: var(--bs-font-monospace);
    box-shadow: var(--rb-card-shadow);
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s ease, transform .2s ease;
}
.rb-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }