/* ── AIDSTATION Brand System ─────────────────────────────
   Tokens, type system, and Bootstrap 5 overrides.
   60/30/10: Ink (foundation/text) · Paper (surface) · Orange (signal only).
*/

:root {
  /* Brand */
  --orange:       oklch(0.72 0.18 55);
  --orange-deep:  oklch(0.62 0.18 50);
  --orange-soft:  oklch(0.86 0.10 60);

  /* Ink — dark surfaces & text */
  --ink:    oklch(0.16 0.005 250);
  --ink-2:  oklch(0.22 0.005 250);
  --ink-3:  oklch(0.32 0.008 250);

  /* Paper — light surfaces */
  --paper:   oklch(0.98 0.005 80);
  --paper-2: oklch(0.95 0.006 80);
  --paper-3: oklch(0.90 0.008 80);

  /* Lines */
  --grid:     color-mix(in oklab, var(--ink) 6%, transparent);
  --hairline: color-mix(in oklab, var(--ink) 12%, transparent);

  /* Type */
  --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  /* Radius */
  --radius:       4px;
  --radius-lg:    6px;
  --radius-phone: 28px;

  /* ── Bootstrap 5 token overrides ───────────────────── */
  --bs-body-bg:           var(--paper);
  --bs-body-color:        var(--ink);
  --bs-body-font-family:  var(--font-sans);
  --bs-body-font-size:    1rem;
  --bs-body-font-weight:  400;
  --bs-body-line-height:  1.55;

  --bs-primary:           #ED7A2D;
  --bs-primary-rgb:       237,122,45;
  --bs-secondary:         #444851;
  --bs-secondary-rgb:     68,72,81;
  --bs-success:           #2E7D5B;
  --bs-success-rgb:       46,125,91;
  --bs-info:              #2A2D31;
  --bs-info-rgb:          42,45,49;
  --bs-warning:           #C75E1F;
  --bs-warning-rgb:       199,94,31;
  --bs-danger:            #B33A1A;
  --bs-danger-rgb:        179,58,26;
  --bs-light:             #FAFAF7;
  --bs-dark:              #1B1D21;

  --bs-border-color:      color-mix(in oklab, #1B1D21 12%, transparent);
  --bs-border-width:      1px;
  --bs-border-radius:     4px;
  --bs-border-radius-sm:  4px;
  --bs-border-radius-lg:  6px;

  --bs-link-color:           var(--ink);
  --bs-link-color-rgb:       27,29,33;
  --bs-link-hover-color:     #ED7A2D;
  --bs-link-decoration:      underline;
  --bs-link-hover-decoration: underline;

  /* Card */
  --bs-card-bg:            var(--paper);
  --bs-card-color:         var(--ink);
  --bs-card-border-color:  var(--hairline);
  --bs-card-border-width:  1px;
  --bs-card-border-radius: 4px;
  --bs-card-cap-bg:        var(--paper-2);
  --bs-card-cap-color:     var(--ink);

  /* Tables */
  --bs-table-color:         var(--ink);
  --bs-table-bg:            transparent;
  --bs-table-border-color:  var(--hairline);
  --bs-table-striped-bg:    var(--paper-2);
  --bs-table-striped-color: var(--ink);
  --bs-table-hover-bg:      var(--paper-3);
  --bs-table-hover-color:   var(--ink);

  /* Dropdown */
  --bs-dropdown-bg:               var(--paper);
  --bs-dropdown-border-color:     var(--hairline);
  --bs-dropdown-border-width:     1px;
  --bs-dropdown-border-radius:    4px;
  --bs-dropdown-color:            var(--ink);
  --bs-dropdown-link-color:       var(--ink);
  --bs-dropdown-link-hover-bg:    var(--paper-2);
  --bs-dropdown-link-hover-color: var(--ink);
  --bs-dropdown-link-active-bg:   var(--ink);
  --bs-dropdown-link-active-color: var(--paper);
  --bs-dropdown-divider-bg:       var(--hairline);

  /* Navbar (dark ink topbar) */
  --bs-navbar-color:                color-mix(in oklab, #FAFAF7 70%, transparent);
  --bs-navbar-hover-color:          var(--paper);
  --bs-navbar-active-color:         var(--paper);
  --bs-navbar-brand-color:          var(--paper);
  --bs-navbar-brand-hover-color:    var(--paper);
  --bs-navbar-toggler-border-color: color-mix(in oklab, #FAFAF7 20%, transparent);

  /* Misc semantics */
  --bs-body-emphasis-color:  var(--ink);
  --bs-secondary-color:      var(--ink-3);
  --bs-secondary-bg:         var(--paper-2);
  --bs-tertiary-bg:          var(--paper-3);
  --bs-tertiary-color:       var(--ink-3);
  --bs-emphasis-color:       var(--ink);
  --bs-heading-color:        var(--ink);
  --bs-focus-ring-color:     color-mix(in oklab, #ED7A2D 35%, transparent);
}

/* ── Base ─────────────────────────────────────────────── */
html, body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "ss01", "cv11";
}

h1, h2, h3, h4, h5, h6 {
  color: var(--ink);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.15;
}
h1 { font-size: 40px; font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: 32px; }
h3 { font-size: 24px; }
h4 { font-size: 20px; }
h5 { font-size: 17px; font-weight: 600; }
h6 { font-size: 14px; font-weight: 600; }

a       { color: var(--ink); text-decoration: underline; text-underline-offset: 2px; text-decoration-color: color-mix(in oklab, currentColor 30%, transparent); }
a:hover { color: var(--orange-deep); text-decoration-color: currentColor; }

.text-muted, .text-secondary { color: var(--ink-3) !important; }
small, .small               { color: var(--ink-3); font-size: 13px; font-weight: 500; }

::selection { background: var(--orange-soft); color: var(--ink); }

hr { border: 0; border-top: 1px solid var(--hairline); opacity: 1; }

/* ── Brand utility classes ─────────────────────────────── */
.mono       { font-family: var(--font-mono); }
.eyebrow    { font-family: var(--font-mono); font-size: 11px; font-weight: 500; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ink-3); }

.display-1  { font-size: clamp(56px, 8vw, 88px); font-weight: 800; letter-spacing: -0.035em; line-height: 1; }
.display-2  { font-size: clamp(40px, 5vw, 56px); font-weight: 700; letter-spacing: -0.025em; line-height: 1.05; }
.heading    { font-size: 32px; font-weight: 600; letter-spacing: -0.015em; line-height: 1.1; }
.subheading { font-size: 22px; font-weight: 500; letter-spacing: -0.01em; line-height: 1.3; }
.lede       { font-size: 22px; font-weight: 400; line-height: 1.45; color: var(--ink-2); max-width: 760px; }
.body-lg    { font-size: 17px; font-weight: 400; line-height: 1.55; }

.mono-num   { font-family: var(--font-mono); font-size: 28px; font-weight: 500; letter-spacing: -0.01em; }
.mono-lbl   { font-family: var(--font-mono); font-size: 12px; font-weight: 500; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ink-3); }

/* Numerals: data tables, stats, splits */
.num, .stat, td.num, .table-num td, .table-num th {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.005em;
}

.hairline    { border: 1px solid var(--hairline); }
.hairline-t  { border-top: 1px solid var(--hairline); }
.hairline-b  { border-bottom: 1px solid var(--hairline); }

/* ── Wordmark ──────────────────────────────────────────── */
.wordmark {
  font-family: var(--font-sans);
  letter-spacing: 0.04em;
  line-height: 1;
  display: inline-flex;
  align-items: baseline;
  text-transform: uppercase;
  text-decoration: none;
}
.wordmark .aid     { font-weight: 800; }
.wordmark .station { font-weight: 400; }
.wordmark.accent .aid { color: var(--orange); }

/* ── Topbar / Navbar ───────────────────────────────────── */
.navbar {
  background: var(--ink) !important;
  border-bottom: 1px solid color-mix(in oklab, var(--paper) 8%, transparent);
  padding: 0.6rem 1rem;
}
.navbar .navbar-brand {
  font-size: 22px;
  padding: 0.25rem 0;
  margin-right: 1.75rem;
}
@media (min-width: 992px) {
  .navbar .navbar-brand { font-size: 26px; }
}
.navbar .navbar-brand.lockup {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
}
.navbar .navbar-brand .brand-mark {
  width: 1.4em;
  height: 1.4em;
  flex-shrink: 0;
}
.navbar .navbar-brand .lockup-text { line-height: 1; }
.navbar .nav-link {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 500;
  padding: 0.6rem 0.85rem !important;
}
.navbar .nav-link:hover { color: var(--paper) !important; }
.navbar .dropdown-menu {
  margin-top: 4px;
  border-radius: 4px;
  padding: 6px;
  min-width: 220px;
}
.navbar .dropdown-item {
  font-family: var(--font-sans);
  font-size: 14px;
  letter-spacing: 0;
  text-transform: none;
  padding: 8px 12px;
  border-radius: 3px;
}
.navbar-toggler {
  border-width: 1px;
  padding: 4px 8px;
  /* Explicit white-stroke hamburger SVG. Bootstrap 5.3 deprecated
     .navbar-dark and the toggler icon variable doesn't always inherit
     reliably — set it directly so the icon is visible against any
     rendered background. */
  --bs-navbar-toggler-icon-bg: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255,255,255,0.95%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
  margin-left: auto;  /* never let the brand push it offscreen */
}
.navbar-toggler:focus { box-shadow: none; }
/* Defensive wrap: if the nav's intrinsic content is wider than the
   viewport (lots of items on a narrow widescreen), let it wrap onto
   a second row instead of overflowing horizontally and pushing the
   user dropdown / toggler past the right edge of the navbar's dark
   background. */
.navbar > .container-fluid { flex-wrap: wrap; }
body { overflow-x: hidden; }

/* ── Cards ─────────────────────────────────────────────── */
.card {
  border: 1px solid var(--hairline);
  border-radius: 4px;
  box-shadow: none;
}
.card-header {
  background: var(--paper-2);
  border-bottom: 1px solid var(--hairline);
  color: var(--ink);
  font-weight: 600;
}
.card-footer {
  background: var(--paper-2);
  border-top: 1px solid var(--hairline);
}

/* ── Tables ───────────────────────────────────────────── */
.table {
  --bs-table-color: var(--ink);
  border-color: var(--hairline);
  font-size: 14px;
}
.table th, .table td {
  vertical-align: middle;
  border-color: var(--hairline);
  padding: 10px 12px;
}
.table thead th {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
  background: transparent;
  border-bottom: 1px solid var(--hairline);
}
.table-dark {
  --bs-table-bg: var(--ink);
  --bs-table-color: var(--paper);
  --bs-table-border-color: color-mix(in oklab, var(--paper) 12%, transparent);
}

@media (max-width: 768px) {
  .table-responsive { font-size: 13px; }
  h1 { font-size: 28px; }
  h2 { font-size: 22px; }
  h3 { font-size: 18px; }
}

/* ── Forms ────────────────────────────────────────────── */
.form-control, .form-select {
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--hairline);
  border-radius: 4px;
  font-family: var(--font-sans);
  font-size: 15px;
  padding: 9px 12px;
}
.form-control:focus, .form-select:focus {
  background: var(--paper);
  color: var(--ink);
  border-color: var(--orange);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--orange) 20%, transparent);
}
.form-control::placeholder { color: var(--ink-3); }
.form-control:disabled, .form-select:disabled {
  background: var(--paper-2);
  color: var(--ink-3);
}
.form-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 6px;
}
.input-group-text {
  background: var(--paper-2);
  color: var(--ink-3);
  border: 1px solid var(--hairline);
  font-family: var(--font-mono);
  font-size: 13px;
}
.form-text { color: var(--ink-3); font-size: 13px; }

/* Numeric inputs render in mono — pace/HR/watts/duration stay tabular */
input[type="number"],
input[type="time"],
input[type="date"],
input[type="datetime-local"] {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ── Buttons ──────────────────────────────────────────── */
.btn {
  border-width: 1px;
  border-radius: 4px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0;
  padding: 9px 16px;
  line-height: 1.3;
  transition: background-color .12s ease, color .12s ease, border-color .12s ease;
}
.btn-sm { padding: 6px 11px; font-size: 13px; }
.btn-lg { padding: 12px 22px; font-size: 16px; }

/* Default: ink/paper. Hover: orange-deep. */
.btn-primary {
  --bs-btn-color: var(--paper);
  --bs-btn-bg: var(--ink);
  --bs-btn-border-color: var(--ink);
  --bs-btn-hover-color: var(--paper);
  --bs-btn-hover-bg: var(--orange-deep);
  --bs-btn-hover-border-color: var(--orange-deep);
  --bs-btn-active-color: var(--paper);
  --bs-btn-active-bg: var(--orange-deep);
  --bs-btn-active-border-color: var(--orange-deep);
  --bs-btn-focus-shadow-rgb: 237,122,45;
}
/* Call-to-action: orange. Reserve for the action that "moves the race". */
.btn-cta, .btn-warning {
  --bs-btn-color: var(--ink);
  --bs-btn-bg: var(--orange);
  --bs-btn-border-color: var(--orange);
  --bs-btn-hover-color: var(--paper);
  --bs-btn-hover-bg: var(--orange-deep);
  --bs-btn-hover-border-color: var(--orange-deep);
  --bs-btn-active-bg: var(--orange-deep);
  --bs-btn-active-border-color: var(--orange-deep);
  --bs-btn-focus-shadow-rgb: 237,122,45;
}
.btn-success {
  --bs-btn-color: var(--paper);
  --bs-btn-bg: #2E7D5B;
  --bs-btn-border-color: #2E7D5B;
  --bs-btn-hover-bg: #246347;
  --bs-btn-hover-border-color: #246347;
  --bs-btn-focus-shadow-rgb: 46,125,91;
}
.btn-danger {
  --bs-btn-color: var(--paper);
  --bs-btn-bg: #B33A1A;
  --bs-btn-border-color: #B33A1A;
  --bs-btn-hover-bg: #8E2D14;
  --bs-btn-hover-border-color: #8E2D14;
  --bs-btn-focus-shadow-rgb: 179,58,26;
}
.btn-secondary {
  --bs-btn-color: var(--ink);
  --bs-btn-bg: var(--paper);
  --bs-btn-border-color: var(--hairline);
  --bs-btn-hover-color: var(--ink);
  --bs-btn-hover-bg: var(--paper-2);
  --bs-btn-hover-border-color: var(--ink-3);
}
.btn-outline-secondary {
  --bs-btn-color: var(--ink);
  --bs-btn-border-color: var(--hairline);
  --bs-btn-hover-color: var(--paper);
  --bs-btn-hover-bg: var(--ink);
  --bs-btn-hover-border-color: var(--ink);
}
.btn-outline-primary {
  --bs-btn-color: var(--ink);
  --bs-btn-border-color: var(--ink);
  --bs-btn-hover-color: var(--paper);
  --bs-btn-hover-bg: var(--ink);
  --bs-btn-hover-border-color: var(--ink);
}
.btn-outline-danger {
  --bs-btn-color: #B33A1A;
  --bs-btn-border-color: #B33A1A;
  --bs-btn-hover-color: var(--paper);
  --bs-btn-hover-bg: #B33A1A;
}
.btn-link {
  --bs-btn-color: var(--ink);
  --bs-btn-hover-color: var(--orange-deep);
  text-decoration-color: color-mix(in oklab, currentColor 30%, transparent);
  text-underline-offset: 2px;
}

/* ── Badges ───────────────────────────────────────────── */
.badge {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  border-radius: 3px;
  padding: 4px 8px;
  border: 1px solid transparent;
  vertical-align: middle;
}
.bg-primary   { background: var(--orange) !important; color: var(--ink) !important; }
.bg-success   { background: #2E7D5B !important; color: var(--paper) !important; }
.bg-danger    { background: #B33A1A !important; color: var(--paper) !important; }
.bg-warning   { background: var(--orange) !important; color: var(--ink) !important; }
.bg-info      { background: var(--ink-2) !important; color: var(--paper) !important; }
.bg-secondary { background: transparent !important; color: var(--ink-3) !important; border-color: var(--hairline) !important; }
.bg-dark      { background: var(--ink) !important; color: var(--paper) !important; }
.bg-light     { background: var(--paper-2) !important; color: var(--ink) !important; }

/* ── Alerts ───────────────────────────────────────────── */
.alert {
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--ink);
  border-radius: 4px;
  background: var(--paper-2);
  color: var(--ink);
  padding: 14px 16px;
}
.alert-success { border-left-color: #2E7D5B; }
.alert-danger  { border-left-color: #B33A1A; }
.alert-warning { border-left-color: var(--orange); }
.alert-info    { border-left-color: var(--ink-3); }

/* ── List groups ──────────────────────────────────────── */
.list-group-item {
  background: var(--paper);
  color: var(--ink);
  border-color: var(--hairline);
  border-width: 1px;
}
.list-group-item-action:hover { background: var(--paper-2); color: var(--ink); }

/* ── Modals ───────────────────────────────────────────── */
.modal-content {
  background: var(--paper);
  border: 1px solid var(--hairline);
  border-radius: 4px;
}
.modal-header, .modal-footer {
  border-color: var(--hairline);
  background: var(--paper-2);
}

/* ── Pagination ───────────────────────────────────────── */
.pagination .page-link {
  background: var(--paper);
  border: 1px solid var(--hairline);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
}
.pagination .page-link:hover { background: var(--paper-2); color: var(--ink); }
.pagination .page-item.active .page-link {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

/* ── Code ─────────────────────────────────────────────── */
code, pre, kbd, samp {
  font-family: var(--font-mono);
  font-size: 13px;
}
code {
  background: var(--paper-2);
  color: var(--ink);
  border: 1px solid var(--hairline);
  border-radius: 3px;
  padding: 1px 5px;
}
pre {
  background: var(--paper-2);
  color: var(--ink);
  border: 1px solid var(--hairline);
  border-radius: 4px;
  padding: 12px 14px;
}
pre code { background: none; border: 0; padding: 0; }

/* ── Stat tile (signature pattern from brand guide) ──── */
.stat-tile {
  background: var(--paper-2);
  border: 1px solid var(--hairline);
  border-radius: 6px;
  padding: 14px 16px;
}
.stat-tile .stat-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 8px;
}
.stat-tile .stat-value {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.stat-tile .stat-unit {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  color: var(--ink-3);
  margin-left: 4px;
}
.stat-tile.live {
  background: var(--orange);
  border-color: var(--orange);
}
.stat-tile.live .stat-label,
.stat-tile.live .stat-value,
.stat-tile.live .stat-unit { color: var(--ink); }

/* ── Dashboard brand hero ─────────────────────────────── */
.dashboard-hero {
  border-bottom: 1px solid var(--hairline);
}
.dashboard-hero .wordmark { line-height: 1; }
.dashboard-hero .dashboard-mark {
  width: clamp(56px, 6vw, 80px);
  height: clamp(56px, 6vw, 80px);
  color: var(--ink);
  flex-shrink: 0;
}

/* ── Section header (eyebrow + title) ─────────────────── */
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--hairline);
  padding-bottom: 16px;
  margin-bottom: 24px;
}
.section-header .eyebrow { margin-bottom: 6px; display: block; }
.section-header h1, .section-header h2 { margin: 0; }

/* ── Container width tweak ────────────────────────────── */
@media (min-width: 1280px) {
  .container-fluid { max-width: 1240px; margin-left: auto; margin-right: auto; }
}

/* ── Focus rings ──────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}
.btn:focus-visible {
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--orange) 30%, transparent);
}

/* ── Utility classes (CSP style-src refactor) ─────────────────
   These replace parser-set inline style="..." attributes so we can drop
   'unsafe-inline' from style-src. Prefer a Bootstrap utility (d-none,
   w-25, etc.) over a u-* class when one fits; the u-* prefix is reserved
   for the long tail Bootstrap doesn't cover. Dynamic widths use
   data-progress="N" + a JS init in static/app.js — adding new ones, use
   the same pattern. */
.u-clickable      { cursor: pointer; }
.u-bullet         { list-style-type: disc; }
.u-break-all      { word-break: break-all; }
.u-pre-wrap       { white-space: pre-wrap; }
.u-pre-wrap-inherit { white-space: pre-wrap; font-family: inherit; }
.u-resize-none    { resize: none; }
.u-resize-v       { resize: vertical; }
.u-z-overlay      { z-index: 1040; }

.u-fs-70          { font-size: 0.70rem; }
.u-fs-75          { font-size: 0.75rem; }
.u-fs-80          { font-size: 0.80rem; }
.u-fs-15          { font-size: 15px; }
.u-lh-1-6         { line-height: 1.6; }

.u-w-40pct        { width: 40%; }
.u-w-30           { width: 30px; }
.u-w-36           { width: 36px; }
.u-w-68           { width: 68px; }
.u-w-75           { width: 75px; }
.u-w-85           { width: 85px; }
.u-w-88           { width: 88px; }
.u-w-90           { width: 90px; }
.u-w-95           { width: 95px; }
.u-h-8            { height: 8px; }
.u-h-10           { height: 10px; }

.u-mw-360         { max-width: 360px; }
.u-mw-460         { max-width: 460px; }
.u-mw-480         { max-width: 480px; }
.u-minw-140       { min-width: 140px; }
.u-minw-180       { min-width: 180px; }

.u-logo-thumb     { height: 60px; width: auto; }
.u-scrollbox-200  { max-height: 200px; overflow: auto; }
.u-chat-scroll    { min-height: 160px; max-height: 380px; overflow-y: auto; padding: 1rem; }
.u-chat-scroll-light { height: 280px; overflow-y: auto; padding: 1rem; background: #f8f9fa; }