/* ==========================================================================
   American Byways Maps — design tokens and shared chrome
   Light and dark are both first-class: tokens are defined on :root, then
   redefined for the dark media query and for an explicit [data-theme] choice.
   ========================================================================== */

:root {
  /* Warm, heritage-leaning palette: asphalt ink, paper, clay accent, pine. */
  --ink:            #1c1815;
  --ink-2:          #46403a;
  --ink-3:          #6f675f;
  --paper:          #faf7f2;
  --paper-2:        #f2ede4;
  --paper-3:        #e7e0d4;
  --line:           #ddd4c5;
  --line-strong:    #c8bda8;
  --clay:           #b4441f;
  --clay-2:         #8f3316;
  --clay-soft:      #f6e6df;
  --pine:           #2f5d43;
  --pine-soft:      #e3ece6;
  --sky:            #1f5f8b;
  --warn:           #9a6414;
  --surface:        #ffffff;
  --surface-2:      #faf7f2;
  --shadow-sm:      0 1px 2px rgba(28, 24, 21, .06), 0 1px 3px rgba(28, 24, 21, .05);
  --shadow-md:      0 2px 6px rgba(28, 24, 21, .07), 0 8px 24px rgba(28, 24, 21, .08);
  --shadow-lg:      0 4px 12px rgba(28, 24, 21, .10), 0 20px 48px rgba(28, 24, 21, .14);

  --radius-sm: 5px;
  --radius:    9px;
  --radius-lg: 14px;

  --font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  --wrap: 1140px;
  --header-h: 60px;
  /* What the header shrinks to when the window is shorter than it is wide —
     a landscape phone has 390 pixels of height and cannot spare sixty of
     them for a bar with four icons on it. */
  --short-header: 44px;

  /*
   * Display cutouts. Zero in every browser tab, non-zero only when the page is
   * running installed — as a standalone PWA or inside the Capacitor shell —
   * where the header would otherwise sit under the iOS status bar and the
   * floating map controls under the home indicator. `viewport-fit=cover` in
   * the page's viewport meta is what makes these report anything at all.
   */
  /*
   * Popups sit ON the map rather than in a panel, so they need their own
   * background token. In dark mode `--surface` and `--paper-2` are the same
   * colour, which made a popup's own inputs and selects — themselves
   * `--surface` — disappear into the card they were sitting on, leaving a
   * black rectangle with a hairline round it. The card drops to `--paper` so
   * the controls on it read as controls.
   */
  --popup-bg: var(--surface);
  /*
   * And a second token for the controls ON that card. In dark mode `--surface`
   * sits only a shade above `--paper`, so inputs read as black rectangles
   * rather than as fields; `--paper-3` is the step that is actually visible at
   * arm's length on a phone.
   */
  --popup-control: var(--surface);
  /*
   * And a third, for striping a long table on a popup.
   *
   * It cannot be either of the two above: in light mode --popup-control IS the
   * card colour, so striping with it drew nothing at all, and in dark it is a
   * control tone that reads far too strong across a whole row.
   */
  --popup-stripe: var(--paper-2);

  --safe-top:    env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left:   env(safe-area-inset-left, 0px);
  --safe-right:  env(safe-area-inset-right, 0px);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ink:          #f2ece3;
    --ink-2:        #c4bbae;
    --ink-3:        #948b7f;
    --paper:        #15120f;
    --paper-2:      #1d1917;
    --paper-3:      #26211d;
    --line:         #362f2a;
    --line-strong:  #4a423b;
    --clay:         #e2734a;
    --clay-2:       #f0906b;
    --clay-soft:    #33201a;
    --pine:         #6fae87;
    --pine-soft:    #1a2822;
    --sky:          #6aaed6;
    --warn:         #d7a55c;
    --surface:      #1d1917;
    --surface-2:    #211c19;
    --popup-bg:     var(--paper);
    /* A visible step, not a shade. --paper-3 (#26211d) against a --paper
       (#15120f) card is a difference a desktop shows and a phone at arm's
       length does not, which is how a name field ended up looking like a
       black rectangle with a hairline round it. */
    --popup-control: #352e28;
    --popup-stripe:  #221d1a;
    --shadow-sm:    0 1px 2px rgba(0, 0, 0, .4);
    --shadow-md:    0 2px 8px rgba(0, 0, 0, .45);
    --shadow-lg:    0 8px 32px rgba(0, 0, 0, .55);
  }
}

:root[data-theme="dark"] {
  --ink:          #f2ece3;
  --ink-2:        #c4bbae;
  --ink-3:        #948b7f;
  --paper:        #15120f;
  --paper-2:      #1d1917;
  --paper-3:      #26211d;
  --line:         #362f2a;
  --line-strong:  #4a423b;
  --clay:         #e2734a;
  --clay-2:       #f0906b;
  --clay-soft:    #33201a;
  --pine:         #6fae87;
  --pine-soft:    #1a2822;
  --sky:          #6aaed6;
  --warn:         #d7a55c;
  --surface:      #1d1917;
  --surface-2:    #211c19;
  --popup-bg:     var(--paper);
  --popup-control: #352e28;
  --popup-stripe:  #221d1a;
  --shadow-sm:    0 1px 2px rgba(0, 0, 0, .4);
  --shadow-md:    0 2px 8px rgba(0, 0, 0, .45);
  --shadow-lg:    0 8px 32px rgba(0, 0, 0, .55);
}

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { font-family: var(--font-serif); font-weight: 600; line-height: 1.2; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2rem, 4.5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
h3 { font-size: 1.15rem; }
p  { margin: 0 0 1em; }

a { color: var(--clay); text-decoration-thickness: 1px; text-underline-offset: 2px; }
a:hover { color: var(--clay-2); }

code, kbd, pre { font-family: var(--font-mono); font-size: .875em; }
code { background: var(--paper-3); padding: .12em .38em; border-radius: var(--radius-sm); }
pre {
  background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 14px 16px; overflow-x: auto; line-height: 1.55;
}
pre code { background: none; padding: 0; }

:focus-visible { outline: 2px solid var(--clay); outline-offset: 2px; border-radius: 3px; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; margin: -1px;
  padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------- header ---------- */

.site-header {
  position: sticky; top: 0; z-index: 50;
  height: calc(var(--header-h) + var(--safe-top));
  padding-top: var(--safe-top);
  padding-left: var(--safe-left); padding-right: var(--safe-right);
  display: flex; align-items: center;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(150%) blur(10px);
  border-bottom: 1px solid var(--line);
}
/* Shrinkable, so a header that runs out of room crowds rather than overflows.
   The grid column above refuses to widen for it now, so the alternative to
   shrinking is clipping its own controls. */
.site-header .wrap { display: flex; align-items: center; gap: 20px; min-width: 0; }
@media (max-width: 700px) { .site-header .wrap { gap: 10px; } }

.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); margin-right: auto; min-width: 0; }
.brand:hover { color: var(--ink); }
.brand-mark { width: 30px; height: 30px; flex: none; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; min-width: 0; }
.brand-name, .brand-parent { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.brand-name { font-family: var(--font-serif); font-size: 1.02rem; font-weight: 600; }
.brand-parent { font-size: .68rem; color: var(--ink-3); letter-spacing: .07em; text-transform: uppercase; }

.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  color: var(--ink-2); text-decoration: none; font-size: .9rem; font-weight: 500;
  padding: 7px 11px; border-radius: var(--radius-sm);
}
.nav a:hover { color: var(--ink); background: var(--paper-3); }
.nav a.is-active { color: var(--clay); background: var(--clay-soft); }

/*
 * Home, Map and Help as marks.
 *
 * Three words plus a wordmark plus five map controls did not fit a phone
 * header, and these three are the most guessable labels in the app - a house,
 * a folded map, a question mark. The name of each is still on it, as a title
 * for a pointer and as an aria-label for anything that is not one; a link
 * carrying only a picture and no accessible name is a link nobody can follow.
 */
.nav-icons a {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; padding: 0;
}
.nav-icons a svg {
  width: 18px; height: 18px;
  fill: none; stroke: currentColor;
}
/* An in-page anchor rather than another page, so it stays a word. */
.nav-icons a.nav-word { width: auto; padding: 7px 11px; }

.icon-button {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; padding: 0;
  background: none; border: 1px solid transparent; border-radius: var(--radius-sm);
  color: var(--ink-2); cursor: pointer;
}
.icon-button:hover { background: var(--paper-3); color: var(--ink); border-color: var(--line); }
.icon-button svg { width: 17px; height: 17px; }

/* ---------- buttons ---------- */

.button {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; border-radius: var(--radius);
  font: inherit; font-size: .925rem; font-weight: 550;
  text-decoration: none; cursor: pointer;
  border: 1px solid transparent;
  transition: background-color .12s ease, border-color .12s ease, transform .06s ease;
}
.button:active { transform: translateY(1px); }
.button svg { width: 16px; height: 16px; flex: none; }

.button-primary { background: var(--clay); border-color: var(--clay); color: #fff; }
.button-primary:hover { background: var(--clay-2); border-color: var(--clay-2); color: #fff; }

.button-secondary { background: var(--surface); border-color: var(--line-strong); color: var(--ink); }
.button-secondary:hover { background: var(--paper-2); color: var(--ink); border-color: var(--ink-3); }

.button-ghost { background: transparent; border-color: transparent; color: var(--ink-2); }
.button-ghost:hover { background: var(--paper-3); color: var(--ink); }

.button-small { padding: 6px 12px; font-size: .85rem; }

/* ---------- footer ---------- */

.site-footer {
  margin-top: 72px; padding: 40px 0 56px;
  border-top: 1px solid var(--line); background: var(--paper-2);
  font-size: .875rem; color: var(--ink-3);
}
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 20px 40px; align-items: flex-start; }
.site-footer .footer-main { flex: 1 1 280px; }
.site-footer h4 { font-family: var(--font-sans); font-size: .78rem; text-transform: uppercase; letter-spacing: .07em; color: var(--ink-2); margin-bottom: .6em; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.site-footer a { color: var(--ink-2); text-decoration: none; }
.site-footer a:hover { color: var(--clay); text-decoration: underline; }

/* ---------- landing page ---------- */

.hero { padding: 72px 0 40px; position: relative; overflow: hidden; }
.hero::after {
  /* Faint contour-line texture, drawn in CSS so there is no image to load. */
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(ellipse 60% 80% at 78% 8%, color-mix(in srgb, var(--pine) 11%, transparent), transparent 70%),
    radial-gradient(ellipse 70% 60% at 12% 0%, color-mix(in srgb, var(--clay) 9%, transparent), transparent 72%);
}
.hero-inner { max-width: 640px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .74rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
  color: var(--clay); background: var(--clay-soft);
  padding: 5px 11px; border-radius: 999px; margin-bottom: 18px;
}
.hero p.lede { font-size: 1.12rem; color: var(--ink-2); max-width: 56ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }

.stat-strip {
  display: flex; flex-wrap: wrap; gap: 32px 48px;
  padding: 26px 0 0; margin-top: 34px; border-top: 1px solid var(--line);
}
.stat-value { font-family: var(--font-serif); font-size: 1.85rem; line-height: 1; }
.stat-label { font-size: .74rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); margin-top: 6px; }

.section { padding: 56px 0 0; }
.section-head { display: flex; flex-wrap: wrap; gap: 12px 24px; align-items: flex-end; margin-bottom: 24px; }
.section-head h2 { margin: 0; }
.section-head p { margin: 0; color: var(--ink-3); font-size: .95rem; }

/* catalogue controls */
.controls { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 22px; align-items: center; }
.search-field { position: relative; flex: 1 1 260px; min-width: 200px; }
.search-field svg { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); width: 16px; height: 16px; color: var(--ink-3); pointer-events: none; }
input[type="search"], select {
  width: 100%; font: inherit; font-size: .925rem; color: var(--ink);
  background: var(--surface); border: 1px solid var(--line-strong);
  border-radius: var(--radius); padding: 9px 12px;
}
.search-field input { padding-left: 36px; }
select { width: auto; min-width: 150px; cursor: pointer; }
input[type="search"]:focus, select:focus { border-color: var(--clay); outline: none; box-shadow: 0 0 0 3px var(--clay-soft); }

/* catalogue grid */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 18px; }

.map-card {
  display: flex; flex-direction: column;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .15s ease, border-color .15s ease, transform .15s ease;
}
.map-card:hover { box-shadow: var(--shadow-md); border-color: var(--line-strong); transform: translateY(-2px); }
.map-card-figure {
  position: relative; aspect-ratio: 16 / 9;
  background: var(--paper-2); border-bottom: 1px solid var(--line);
  display: block; overflow: hidden;
}
.map-card-figure svg { display: block; width: 100%; height: 100%; }
.map-card-badge {
  position: absolute; top: 10px; right: 10px;
  font-size: .68rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase;
  padding: 3px 8px; border-radius: 999px;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  border: 1px solid var(--line); color: var(--ink-2); backdrop-filter: blur(4px);
}
.map-card-body { padding: 15px 17px 17px; display: flex; flex-direction: column; flex: 1; }
.map-card-body h3 { margin: 0 0 5px; font-size: 1.06rem; }
.map-card-body h3 a { color: var(--ink); text-decoration: none; }
.map-card-body h3 a:hover { color: var(--clay); }
.map-card-region { font-size: .78rem; color: var(--ink-3); margin-bottom: 9px; display: flex; align-items: center; gap: 5px; }
.map-card-desc { font-size: .89rem; color: var(--ink-2); margin: 0 0 14px; flex: 1; }
.map-card-stats { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: .8rem; color: var(--ink-3); padding-top: 12px; border-top: 1px solid var(--line); }
.map-card-stats b { color: var(--ink); font-weight: 600; }
.map-card-actions { display: flex; gap: 8px; margin-top: 13px; }

.tag-row { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 11px; }
.tag {
  font-size: .72rem; padding: 2px 8px; border-radius: 999px;
  background: var(--pine-soft); color: var(--pine); border: 1px solid color-mix(in srgb, var(--pine) 22%, transparent);
}

.empty-state {
  padding: 56px 24px; text-align: center; color: var(--ink-3);
  border: 1px dashed var(--line-strong); border-radius: var(--radius-lg); background: var(--surface-2);
}
.empty-state h3 { color: var(--ink-2); }

/* prose sections */
.prose-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(255px, 1fr)); gap: 26px; }
.prose-grid h3 { display: flex; align-items: center; gap: 9px; }
.prose-grid h3 svg { width: 19px; height: 19px; color: var(--clay); flex: none; }
.prose-grid p { color: var(--ink-2); font-size: .93rem; margin: 0; }

.callout {
  border: 1px solid var(--line); border-left: 3px solid var(--clay);
  background: var(--surface); border-radius: var(--radius);
  padding: 16px 20px; margin: 22px 0;
}
.callout p:last-child { margin-bottom: 0; }

.roadmap { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.roadmap li { display: flex; gap: 13px; padding: 13px 0; border-bottom: 1px solid var(--line); align-items: flex-start; }
.roadmap li:last-child { border-bottom: 0; }
.roadmap .phase {
  flex: none; width: 74px; font-size: .7rem; font-weight: 600; letter-spacing: .06em;
  text-transform: uppercase; color: var(--ink-3); padding-top: 3px;
}
.roadmap .shipped { color: var(--pine); }
.roadmap b { display: block; font-weight: 600; }
.roadmap span.detail { font-size: .89rem; color: var(--ink-2); }

@media (max-width: 640px) {
  .wrap { padding: 0 16px; }
  .hero { padding: 44px 0 28px; }
  .stat-strip { gap: 22px 30px; }
  .nav a { padding: 7px 8px; font-size: .85rem; }
  .brand-parent { display: none; }
}


/* ==========================================================================
   Help page — prose, and editing it in place
   ========================================================================== */

.hero-compact { padding-bottom: 8px; }
.faq-wrap { padding-bottom: 56px; }
.faq-section {
  position: relative; max-width: 68ch; margin: 0 auto 40px;
  padding-top: 26px; border-top: 1px solid var(--line);
}
.faq-section:first-of-type { border-top: 0; }
.faq-section h2 { font-size: 1.32rem; margin: 0 0 14px; }
.faq-section h3 {
  font-size: .96rem; margin: 24px 0 6px;
  letter-spacing: .01em; color: var(--ink);
}
.faq-section p { margin: 0 0 11px; line-height: 1.62; color: var(--ink-2); }
.faq-section strong { color: var(--ink); }

/* Any editable section anchors its own pencil. .faq-section already sets this;
   the home page's sections do not, and an absolutely positioned button with no
   positioned ancestor climbs to the viewport corner. */
[data-editable] { position: relative; }

/* The pencil sits in the section's own top-right rather than beside the
   heading, so a two-line heading does not push it out of reach. */
.faq-edit {
  position: absolute; top: 22px; right: 0;
  width: 32px; height: 32px; display: inline-flex; align-items: center; justify-content: center;
  background: none; border: 1px solid transparent; border-radius: 50%;
  color: var(--ink-3); cursor: pointer;
}
.faq-edit:hover { background: var(--paper-3); color: var(--ink); border-color: var(--line); }
.faq-edit svg { width: 15px; height: 15px; }

/* Editing state, marked clearly: an editable region that looks identical to a
   read-only one is how somebody types into a page they meant to be reading. */
.faq-body.is-editing {
  outline: 2px solid var(--clay); outline-offset: 8px; border-radius: var(--radius-sm);
  background: var(--paper-2);
}
.faq-editbar { display: flex; align-items: center; gap: 8px; margin-top: 14px; }
.faq-status { font-size: .82rem; color: var(--ink-3); }


/* The divider between the provider buttons and the email form: a quiet label,
   not a rule, because the form below it is already visually separate. */
.account-or {
  margin: 12px 0 8px; text-align: center; font-size: .78rem; color: var(--ink-3);
}