/* ═══════════════════════════════════════════════════════════════════════════
   IERailMetrics — shared base
   Design tokens, page chrome (header/logo/live pill/nav) and the animations that
   every page uses. Page-specific rules stay in each template's own <style>.
   ═══════════════════════════════════════════════════════════════════════════ */

:root {
    --ir-green:     #00b84f;
    --bg-main:      #070b0f;
    --bg-card:      #0d1520;
    --bg-row:       #101c28;
    --bg-row-alt:   #0b1520;
    --border:       #1f3348;
    --text-primary: #edf4ff;
    --text-muted:   #6b8aac;
    --red:          #e03434;
    --amber:        #f59e0b;
    --blue:         #3b82f6;
}

* { box-sizing: border-box; }

body {
    background: var(--bg-main);
    color: var(--text-primary);
    font-family: 'Segoe UI', system-ui, sans-serif;
    min-height: 100vh;
}


.live-pill {
    display: inline-flex; align-items: center; gap: 6px;
    background: rgba(0, 154, 68, .15);
    border: 1px solid rgba(0, 154, 68, .4);
    color: #3ecf73;
    border-radius: 20px; padding: 3px 12px;
    font-size: .78rem; font-weight: 600; letter-spacing: .04em;
}
.live-dot {
    width: 7px; height: 7px;
    background: #3ecf73; border-radius: 50%;
    animation: pulse 1.6s ease-in-out infinite;
}
.live-pill.stale { background: rgba(245,158,11,.15); border-color: rgba(245,158,11,.45); color: var(--amber); }
.live-pill.stale .live-dot { background: var(--amber); }

/* ── station selector ────────────────────────────────────────────────────── */

.station-select {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
    border-radius: 8px;
    padding: 6px 14px;
    font-size: .85rem;
    cursor: pointer;
    outline: none;
    transition: border-color .15s;
}
.station-select:focus, .station-select:hover { border-color: var(--ir-green); }
.station-select option { background: #111820; }

/* ── scope nav ───────────────────────────────────────────────────────────── */

.scope-tabs { display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; margin-bottom: 1rem; }
.scope-tab {
    display: inline-flex; align-items: center; gap: .45rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-muted);
    border-radius: 8px;
    padding: .55rem .9rem;
    font-size: .82rem; font-weight: 600;
    text-decoration: none;
    transition: all .15s;
}
.scope-tab:hover { border-color: var(--ir-green); color: var(--text-primary); }
.scope-tab.active { background: rgba(0, 154, 68, .14); border-color: var(--ir-green); color: #3ecf73; }

/* ── animations ──────────────────────────────────────────────────────────── */

.spin { animation: spin .7s linear infinite; }

@keyframes pulse { 0%, 100% { opacity: 1 } 50% { opacity: .3 } }
@keyframes spin  { to { transform: rotate(360deg); } }
@keyframes fadeSlideUp { from { opacity: 0; transform: translateY(12px) } to { opacity: 1; transform: translateY(0) } }
@keyframes rowSlideIn  { from { opacity: 0; transform: translateX(-5px) } to { opacity: 1; transform: translateX(0) } }

/* ═══════════════════════════════════════════════════════════════════════════
   Application shell — sidebar, header, content offset
   One variable (--sidebar-current-width) drives the offset of the whole page, so the
   sidebar never overlaps the content: it is fixed, and <body> reserves its width.
   Below 992px the sidebar becomes an off-canvas drawer with a backdrop instead.
   ═══════════════════════════════════════════════════════════════════════════ */

:root {
    color-scheme: dark;
    --ir-green: oklch(0.76 0.18 158);
    --ir-green-strong: oklch(0.69 0.19 158);
    --bg-main: oklch(0.145 0.018 245);
    --bg-sidebar: oklch(0.13 0.025 238);
    --bg-card: oklch(0.19 0.022 242);
    --bg-elevated: oklch(0.205 0.024 242);
    --bg-row: oklch(0.205 0.024 242);
    --bg-row-alt: oklch(0.18 0.022 242);
    --border: oklch(0.31 0.035 241);
    --border-soft: oklch(0.26 0.03 241);
    --text-primary: oklch(0.95 0.012 235);
    --text-muted: oklch(0.72 0.035 238);
    --red: oklch(0.68 0.20 24);
    --amber: oklch(0.79 0.16 78);
    --blue: oklch(0.69 0.14 248);
    --sidebar-width: 248px;
    --sidebar-collapsed-width: 72px;
    --sidebar-current-width: var(--sidebar-width);
    --header-height: 72px;
    --shell-ease: cubic-bezier(.22, .8, .24, 1);
}

html { background: var(--bg-main); }
body {
    background:
        radial-gradient(circle at 75% -15%, oklch(0.24 0.055 218 / .28), transparent 36rem),
        var(--bg-main);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    font-variant-numeric: tabular-nums;
    overflow-x: hidden;
    padding-left: var(--sidebar-current-width);
    transition: padding-left .22s var(--shell-ease);
}
body.sidebar-collapsed { --sidebar-current-width: var(--sidebar-collapsed-width); }
body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image: linear-gradient(oklch(0.8 0.02 230 / .018) 1px, transparent 1px), linear-gradient(90deg, oklch(0.8 0.02 230 / .012) 1px, transparent 1px);
    background-size: 32px 32px;
    z-index: -1;
}

/* ── sidebar ─────────────────────────────────────────────────────────────── */

.app-sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 1040;
    width: var(--sidebar-current-width);
    padding: 14px 12px 12px;
    display: flex;
    flex-direction: column;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-soft);
    transition: width .22s var(--shell-ease), transform .26s var(--shell-ease), visibility 0s;
    overflow: hidden;
}
.sidebar-brand {
    height: 56px;
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 0 6px 14px 4px;
    margin-bottom: 14px;
    color: var(--text-primary);
    font-size: 1.06rem;
    font-weight: 750;
    text-decoration: none;
    white-space: nowrap;
    border-bottom: 1px solid var(--border-soft);
    box-sizing: content-box;
}
.sidebar-brand strong { color: var(--ir-green); }
.sidebar-logo { width: 44px; height: 44px; flex: none; object-fit: cover; border-radius: 10px; }

.nav-close {
    display: none;
    position: absolute;
    top: 22px;
    right: 14px;
    width: 38px;
    height: 38px;
    place-items: center;
    background: transparent;
    border: 1px solid var(--border-soft);
    border-radius: 8px;
    color: var(--text-muted);
}
.nav-close:hover { color: var(--text-primary); background: var(--bg-elevated); }

.sidebar-section {
    padding: 4px 13px 6px;
    color: var(--text-muted);
    font-size: .68rem;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    white-space: nowrap;
}
.sidebar-nav { display: grid; gap: 4px; }
.sidebar-nav a {
    position: relative;
    display: flex;
    align-items: center;
    gap: 13px;
    min-height: 44px;
    padding: 0 13px;
    color: oklch(0.78 0.035 238);
    border: 1px solid transparent;
    border-radius: 8px;
    text-decoration: none;
    font-size: .9rem;
    font-weight: 560;
    white-space: nowrap;
    transition: color .18s ease, background .18s ease, border-color .18s ease;
}
.sidebar-nav a i { flex: none; width: 20px; text-align: center; font-size: 1.05rem; }
.sidebar-nav a:hover { color: var(--text-primary); background: oklch(0.21 0.035 230); }
.sidebar-nav a.active {
    color: oklch(0.96 0.02 158);
    background: oklch(0.32 0.105 162 / .75);
    border-color: oklch(0.65 0.16 158 / .35);
}
.sidebar-nav a.active::before {
    content: "";
    position: absolute;
    left: -13px;
    top: 10px;
    bottom: 10px;
    width: 3px;
    border-radius: 0 3px 3px 0;
    background: var(--ir-green);
}

.sidebar-footer { margin-top: auto; display: grid; gap: 8px; }
.sidebar-status {
    padding: 12px 13px;
    display: grid;
    gap: 4px;
    color: var(--ir-green);
    font-size: .78rem;
    white-space: nowrap;
    background: oklch(0.16 0.025 240);
    border: 1px solid var(--border-soft);
    border-radius: 8px;
}
.sidebar-status span { display: flex; align-items: center; gap: 8px; font-weight: 700; }
.sidebar-status small { color: var(--text-muted); }
.sidebar-clock { color: var(--text-primary); font-weight: 650; }

/* The collapse control lives inside the sidebar, so it can never float over page content. */
.sidebar-toggle {
    display: flex;
    align-items: center;
    gap: 13px;
    min-height: 40px;
    width: 100%;
    padding: 0 13px;
    background: transparent;
    border: 1px solid var(--border-soft);
    border-radius: 8px;
    color: var(--text-muted);
    font-size: .84rem;
    font-weight: 560;
    white-space: nowrap;
    cursor: pointer;
    transition: color .18s ease, background .18s ease, border-color .18s ease;
}
.sidebar-toggle i { flex: none; width: 20px; text-align: center; font-size: 1rem; }
.sidebar-toggle:hover { background: var(--bg-elevated); color: var(--ir-green); border-color: var(--border); }

body.sidebar-collapsed .sidebar-brand { padding-inline: 0; justify-content: center; }
body.sidebar-collapsed .sidebar-brand span,
body.sidebar-collapsed .sidebar-nav a span,
body.sidebar-collapsed .sidebar-toggle span,
body.sidebar-collapsed .sidebar-section,
body.sidebar-collapsed .sidebar-status { display: none; }
body.sidebar-collapsed .sidebar-nav a,
body.sidebar-collapsed .sidebar-toggle { justify-content: center; padding-inline: 0; }
body.sidebar-collapsed .sidebar-nav a.active::before { left: -12px; }
body.sidebar-collapsed .sidebar-toggle i { transform: rotate(180deg); }

/* ── header ──────────────────────────────────────────────────────────────── */

.site-header {
    position: sticky;
    top: 0;
    z-index: 1025;
    min-height: var(--header-height);
    display: flex;
    align-items: center;
    background: oklch(0.15 0.023 241 / .94);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(12px);
}
.site-header .header-content { width: 100%; max-width: 1680px; margin-inline: auto; }
.header-row { display: flex; align-items: center; gap: 14px; min-height: var(--header-height); }
.header-titles { min-width: 0; }
#page-title { font-size: 1.5rem !important; letter-spacing: -.02em; line-height: 1.15; font-weight: 700; }
.page-subtitle { margin-top: 3px; color: var(--text-muted); font-size: .8rem; }
.title-line { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.header-status { margin-left: auto; display: flex; flex-direction: column; align-items: flex-end; gap: 3px; flex: none; }
.header-updated { font-size: .75rem; color: var(--text-muted); }
.header-select { margin-left: 8px; }

.nav-open {
    display: none;
    place-items: center;
    flex: none;
    width: 44px;
    height: 44px;
    position: relative;
    overflow: hidden;
    /* The wolfhound mark sits behind the glyph; the scrim keeps the icon readable (AA). */
    background: linear-gradient(oklch(0.13 0.025 238 / .55), oklch(0.13 0.025 238 / .55)), url("/images/logo_wolfhound-8bdd337db9d22268a6399af86721ddf9.png") center / cover no-repeat;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1.3rem;
}
.nav-open i { filter: drop-shadow(0 1px 2px oklch(0.05 0.02 240 / .9)); }
.nav-open:hover { border-color: var(--ir-green); color: var(--ir-green); }
.sidebar-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1035;
    background: oklch(0.08 0.02 240 / .62);
    opacity: 0;
    visibility: hidden;
    transition: opacity .22s ease, visibility 0s linear .22s;
}
.sidebar-backdrop.show { opacity: 1; visibility: visible; transition-delay: 0s; }

/* ── page-level furniture shared by every view ───────────────────────────── */

.live-pill { border-radius: 6px; text-transform: uppercase; font-size: .69rem; letter-spacing: .08em; }
.station-select, .search-box, .date-input, .form-control, .form-select {
    min-height: 38px;
    background-color: oklch(0.16 0.024 242) !important;
    border-color: var(--border) !important;
    color: var(--text-primary) !important;
}
:where(a, button, input, select, [tabindex]):focus-visible { outline: 2px solid var(--ir-green); outline-offset: 2px; }

body > main.container-fluid, .overview-ranking { max-width: 1680px; margin-inline: auto; }
body > .tab-nav { padding-inline: 1.5rem; }
body > .tab-nav .tab-nav-btn { min-height: 46px; }

.board-wrap, .chart-card, .a-stat-card, .filter-period-bar, .map-panel, .map-wrap {
    background: linear-gradient(145deg, oklch(0.205 0.027 240), oklch(0.175 0.021 244)) !important;
    border-color: oklch(0.31 0.035 241) !important;
    box-shadow: 0 2px 8px oklch(0.07 0.02 240 / .16) !important;
}
.a-stat-card { text-align: left !important; min-height: 88px; padding: .9rem 1.15rem !important; display: flex; flex-direction: column-reverse; justify-content: center; gap: 6px; }
.a-stat-val { font-size: 1.65rem !important; letter-spacing: -.025em; }
.a-stat-lbl { text-transform: none !important; letter-spacing: 0 !important; font-size: .78rem !important; margin-top: 0 !important; color: var(--text-muted); }
.section-header {
    border-left: 0 !important;
    color: var(--text-primary) !important;
    text-transform: none !important;
    letter-spacing: 0 !important;
    font-size: .92rem !important;
}
.section-header i { color: var(--ir-green); font-size: 1rem !important; }
.scope-tabs { gap: 6px; }
.scope-tab { border-radius: 6px; min-height: 38px; }
.scope-tab.active { color: oklch(0.95 0.04 158); background: oklch(0.38 0.13 160); }
thead th { background: oklch(0.23 0.03 239) !important; letter-spacing: .045em !important; }
tbody tr { border-color: oklch(0.28 0.03 241) !important; }
tbody tr:hover { background: oklch(0.25 0.035 236) !important; }
.table-scroll, .table-responsive { scrollbar-gutter: stable; overflow-x: auto; }
.table-scroll th, .table-scroll td, .table-responsive th, .table-responsive td { padding-inline: .8rem !important; }
.text-danger, .delay-red { color: var(--red) !important; }
.period-btn, .chip, .drawer-tab { border-radius: 6px !important; }
.a-stat-card, .stat-card, .chart-card, .board-wrap { opacity:1 !important; transform:none !important; }
main .row.mb-5 { margin-bottom:1.25rem !important; }
.chart-card, .board-wrap { overflow:hidden; }
.empty-state, .empty-full { min-height:120px; display:grid; place-content:center; gap:.4rem; }
.badge-late, .delay-late { border:1px solid oklch(0.68 0.20 24 / .38); background:oklch(0.68 0.20 24 / .12); color:oklch(0.78 0.16 24); border-radius:5px; padding:2px 7px; }
.badge-ontime, .delay-ok { border:1px solid oklch(0.76 0.18 158 / .32); background:oklch(0.76 0.18 158 / .1); color:var(--ir-green); border-radius:5px; padding:2px 7px; }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

/* ── tablet and phone: the sidebar becomes an off-canvas drawer ──────────── */

@media (max-width: 991px) {
    :root { --header-height: 64px; }
    body, body.sidebar-collapsed { --sidebar-current-width: 0px; }
    .app-sidebar {
        width: min(300px, 86vw);
        transform: translateX(-102%);
        visibility: hidden;
        box-shadow: 12px 0 40px oklch(0.05 0.02 240 / .55);
        transition: transform .26s var(--shell-ease), visibility 0s linear .26s;
    }
    .app-sidebar.open { transform: none; visibility: visible; transition-delay: 0s; }
    /* The drawer is always shown expanded, whatever the saved desktop preference was. */
    body.sidebar-collapsed .sidebar-brand { padding-inline: 4px 6px; justify-content: flex-start; }
    body.sidebar-collapsed .sidebar-brand span,
    body.sidebar-collapsed .sidebar-nav a span,
    body.sidebar-collapsed .sidebar-section { display: initial; }
    body.sidebar-collapsed .sidebar-status { display: grid; }
    body.sidebar-collapsed .sidebar-nav a { justify-content: flex-start; padding-inline: 13px; }
    .sidebar-toggle { display: none; }
    .nav-open, .nav-close { display: grid; }
    body > .tab-nav { padding-inline: 12px; overflow-x: auto; }
}

@media (max-width: 575px) {
    .site-header .header-content { padding-inline: 12px !important; }
    .header-row { flex-wrap: wrap; row-gap: 8px; padding-block: 10px; }
    .header-status { flex-direction: row; align-items: center; gap: 8px; }
    .header-titles { flex: 1 1 0; }
    .header-select { order: 5; flex: 0 0 100%; margin-left: 0; }
    .station-select { width: 100%; }
    #page-title { font-size: 1.1rem !important; }
    .page-subtitle { font-size: .72rem; }
    .header-updated { display: none; }
    body > main { padding: 14px 10px !important; }
    .a-stat-card { min-height: 92px; }
    .scope-tab { flex: 1 1 auto; justify-content: center; padding: .5rem .65rem; }
}

@media (max-width: 419px) {
    .analytics-stats, .map-stats { grid-template-columns: 1fr !important; }
}