/* ============================================================
   Tracktion — design system
   Warm editorial minimalism (minimalist-ui) + rugged topo accent.
   No web-font deps: premium system stacks. No gradients on surfaces,
   1px borders, flat cards, earthy spot colour used sparingly.
   ============================================================ */

:root {
  /* Canvas & surfaces */
  --bone:      #F7F7F9;   /* cool off-white canvas */
  --paper:     #FFFFFF;   /* card surface */
  --paper-2:   #F0F0F5;   /* recessed surface */
  --ink:       #242428;   /* dark gray text */
  --ink-2:     #666666;   /* secondary text */
  --ink-3:     #8F8F94;   /* muted / meta */
  --line:      #E6E6EB;   /* borders / dividers */
  --line-2:    #F0F0F5;

  /* Strava accent — orange */
  --clay:      #FC4C02;
  --clay-ink:  #C83C00;
  --clay-wash: #FFF0E6;
  --olive:     #1B753A;   /* Strava green accent */
  --olive-wash:#E8F1EC;

  /* Difficulty scale (high contrast) */
  --easy:      #1B753A;  --easy-wash:  #E8F1EC;
  --medium:    #F68B29;  --medium-wash:#FEF3E9;
  --hard:      #FC4C02;  --hard-wash:  #FFF0E6;
  --extreme:   #242428;  --extreme-wash:#E9E9EA;

  /* Semantic */
  --good:      #1B753A;
  --good-wash: #E8F1EC;

  /* Strava-like sharp radii */
  --radius:    8px;
  --radius-sm: 4px;
  --radius-lg: 12px;
  --shadow:    0 1px 3px rgba(0,0,0,.04);
  --shadow-h:  0 8px 24px rgba(0,0,0,.08);

  /* Performance Typography */
  --brand: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --serif: var(--sans);
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;

  --maxw: 1120px;
  --nav-h: 64px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--sans);
  background: var(--bone);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
img { max-width: 100%; display: block; }
:focus-visible { outline: 2px solid var(--clay); outline-offset: 2px; border-radius: 4px; }

/* topographic contour backdrop (used on hero/auth) - muted for Strava look */
.topo {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: var(--bone); /* solid background instead of map lines */
}

/* ---------- Typography ---------- */
h1,h2,h3,h4 { margin: 0; letter-spacing: -0.01em; line-height: 1.12; font-weight: 700; color: #000; }
.display { font-family: var(--sans); font-weight: 800; letter-spacing: -0.02em; text-transform: capitalize; }
.eyebrow { font-family: var(--sans); font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-2); }
.muted { color: var(--ink-2); }
.meta  { color: var(--ink-3); font-size: 13px; }
.mono  { font-family: var(--mono); }
.price { font-family: var(--mono); font-weight: 600; letter-spacing: -0.01em; }

/* ---------- Layout ---------- */
.app { min-height: 100vh; padding-bottom: calc(var(--nav-h) + env(safe-area-inset-bottom)); }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.view { animation: viewin .5s cubic-bezier(.16,1,.3,1); }
@keyframes viewin { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.section { padding: 28px 0; }
.row { display: flex; align-items: center; gap: 12px; }
.row.wrap-r { flex-wrap: wrap; }
.spread { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.stack { display: flex; flex-direction: column; }
.grow { flex: 1; }
.hide { display: none !important; }

/* ---------- Top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 40;
  background: rgba(247,245,241,.82);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid var(--line);
}
.topbar .wrap { height: 58px; display: flex; align-items: center; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; letter-spacing: -0.01em; }
.brand .logo { width: 42px; height: 42px; flex: none; filter: drop-shadow(0 1px 3px rgba(28,26,22,.12)); }
.brand b { font-family: var(--brand); font-weight: 700; font-size: 18px; }
.brand b .fwd { color: var(--clay); }
.wordmark { font-family: var(--brand); font-weight: 700; letter-spacing: -0.01em; }
.wordmark .fwd { color: var(--clay); }
.loc-pill {
  display: inline-flex; align-items: center; gap: 6px; margin-left: auto;
  padding: 6px 12px; border: 1px solid var(--line); background: var(--paper);
  border-radius: 999px; font-size: 13px; color: var(--ink-2); box-shadow: var(--shadow);
  transition: border-color .2s, color .2s;
}
.loc-pill:hover { border-color: var(--ink-3); color: var(--ink); }
.loc-pill svg { color: var(--clay); }
.avatar-btn {
  width: 34px; height: 34px; border-radius: 999px; border: 1px solid var(--line);
  background: var(--olive-wash); color: var(--olive); font-weight: 700; font-size: 13px;
  display: grid; place-items: center;
}

/* ---------- Bottom nav ---------- */
.tabbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
  height: calc(var(--nav-h) + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom);
  background: rgba(255,255,255,.9);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  border-top: 1px solid var(--line);
  display: grid; grid-template-columns: repeat(4,1fr);
}
.tab {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px;
  background: none; border: 0; color: var(--ink-3); font-size: 10.5px; letter-spacing: .02em;
  transition: color .18s;
}
.tab svg { width: 22px; height: 22px; transition: transform .18s; }
.tab.active { color: var(--ink); }
.tab.active svg { color: var(--clay); transform: translateY(-1px); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 18px; border-radius: var(--radius-sm); border: 1px solid transparent;
  font-size: 14px; font-weight: 550; transition: transform .12s, background .18s, border-color .18s, color .18s;
}
.btn:active { transform: scale(.98); }
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: #322d25; }
.btn-clay { background: var(--clay); color: #fff; }
.btn-clay:hover { background: #9b3c0c; }
.btn-ghost { background: var(--paper); border-color: var(--line); color: var(--ink); box-shadow: var(--shadow); }
.btn-ghost:hover { border-color: var(--ink-3); }
.btn-block { width: 100%; }
.btn-sm { padding: 8px 13px; font-size: 13px; }
.btn:disabled { opacity: .5; pointer-events: none; }

/* ---------- Cards ---------- */
.card {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card-pad { padding: 20px; }
.card-hover { transition: transform .18s cubic-bezier(.16,1,.3,1), box-shadow .18s, border-color .18s; }
.card-hover:hover { transform: translateY(-2px); box-shadow: var(--shadow-h); border-color: var(--line-2); }

/* ---------- Tags / badges ---------- */
.tag {
  display: inline-flex; align-items: center; gap: 5px; padding: 3px 9px; border-radius: 999px;
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .06em; text-transform: uppercase;
  background: var(--paper-2); color: var(--ink-2); border: 1px solid var(--line);
}
.tag-fit { background: var(--good-wash); color: var(--good); border-color: transparent; }
.tag-nofit { background: var(--paper-2); color: var(--ink-3); }
.tag-best { background: var(--clay-wash); color: var(--clay-ink); border-color: transparent; }
.tag.d-easy    { background: var(--easy-wash);    color: var(--easy);    border: 0; }
.tag.d-medium  { background: var(--medium-wash);  color: var(--medium);  border: 0; }
.tag.d-hard    { background: var(--hard-wash);    color: var(--hard);    border: 0; }
.tag.d-extreme { background: var(--extreme-wash); color: var(--extreme); border: 0; }

/* difficulty dot */
.dot { width: 8px; height: 8px; border-radius: 999px; display: inline-block; }
.dot.d-easy { background: var(--easy);} .dot.d-medium { background: var(--medium);}
.dot.d-hard { background: var(--hard);} .dot.d-extreme { background: var(--extreme);}

/* ---------- Inputs ---------- */
.field { display: flex; flex-direction: column; gap: 7px; }
.field label { font-size: 13px; color: var(--ink-2); font-weight: 550; }
.input, select.input, textarea.input {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--radius-sm);
  background: var(--paper); color: var(--ink); font-size: 15px; font-family: inherit;
  transition: border-color .16s, box-shadow .16s;
  -webkit-appearance: none; appearance: none;
}
textarea.input { resize: vertical; min-height: 72px; line-height: 1.5; }
.input:focus, select.input:focus, textarea.input:focus { border-color: var(--clay); box-shadow: 0 0 0 3px var(--clay-wash); outline: none; }
.input::placeholder { color: var(--ink-3); }
.searchbar {
  display: flex; align-items: center; gap: 10px; padding: 12px 15px;
  background: var(--paper); border: 1px solid var(--line); border-radius: 999px; box-shadow: var(--shadow);
}
.searchbar input { border: 0; outline: 0; background: none; flex: 1; font-size: 15px; color: var(--ink); }
.searchbar svg { color: var(--ink-3); }

/* segmented control */
.seg { display: inline-flex; background: var(--paper-2); border: 1px solid var(--line); border-radius: 999px; padding: 3px; gap: 2px; }
.seg button { border: 0; background: none; padding: 7px 14px; border-radius: 999px; font-size: 13px; color: var(--ink-2); font-weight: 550; }
.seg button.on { background: var(--paper); color: var(--ink); box-shadow: var(--shadow); }

/* chips (filters) */
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip { padding: 7px 13px; border-radius: 999px; border: 1px solid var(--line); background: var(--paper); font-size: 13px; color: var(--ink-2); transition: all .15s; }
.chip.on { background: var(--ink); color: #fff; border-color: var(--ink); }

/* ---------- Product thumbs (no external imgs) ---------- */
.thumb {
  border-radius: var(--radius-sm); border: 1px solid var(--line); display: grid; place-items: center;
  background: var(--paper-2); color: var(--olive); aspect-ratio: 1/1; overflow: hidden;
}
.thumb svg { width: 46%; height: 46%; opacity: .85; }
.thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s cubic-bezier(.16,1,.3,1); }
.card-hover:hover .thumb img { transform: scale(1.04); }
.thumb.c-recovery { background: #F3EFE7; } .thumb.c-suspension { background: #EEF0EC; }
.thumb.c-barwork { background: #F1EDE9; }  .thumb.c-snorkel { background: #ECEFEF; }
.thumb.c-lighting { background: #F6F1E4; }  .thumb.c-wheels { background: #EDEBE9; }
.thumb.c-roof { background: #EEF0ED; }      .thumb.c-power { background: #F2EEE6; }
.thumb.c-protection { background: #EEECE8; }

/* ---------- Grids ---------- */
.grid { display: grid; gap: 14px; }
.grid-cats { grid-template-columns: repeat(3,1fr); }
.grid-parts { grid-template-columns: repeat(2,1fr); }
.grid-bento { grid-template-columns: repeat(2,1fr); }

/* part card */
.part { display: flex; flex-direction: column; overflow: hidden; }
.part .thumb { border: 0; border-bottom: 1px solid var(--line); border-radius: 0; }
.part .body { padding: 13px 14px 15px; display: flex; flex-direction: column; gap: 7px; flex: 1; }
.part .name { font-weight: 570; font-size: 14.5px; line-height: 1.25; letter-spacing: -0.01em; }
.part .from { margin-top: auto; }

/* comparison table */
.cmp { display: flex; flex-direction: column; gap: 8px; }
.cmp-row {
  display: grid; grid-template-columns: 1fr auto auto; align-items: center; gap: 12px;
  padding: 13px 15px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--paper);
  transition: border-color .16s, box-shadow .16s;
}
.cmp-row.best { border-color: var(--clay); box-shadow: 0 0 0 3px var(--clay-wash); }
.cmp-store { display: flex; align-items: center; gap: 11px; }
.store-logo { width: 38px; height: 38px; border-radius: 8px; border: 1px solid var(--line); display: grid; place-items: center; font-family: var(--mono); font-weight: 700; font-size: 12px; background: var(--paper-2); color: var(--ink-2); }

/* rating stars */
.stars { display: inline-flex; gap: 1px; color: var(--medium); }
.stars svg { width: 14px; height: 14px; }

/* review */
.review { padding: 15px 0; border-bottom: 1px solid var(--line); }
.review:last-child { border-bottom: 0; }

/* ---------- Track map ---------- */
#map { width: 100%; height: 100%; background: var(--olive-wash); }
.map-wrap { position: relative; height: calc(100vh - 58px - var(--nav-h)); }
.map-panel {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 500;
  background: var(--paper); border-top: 1px solid var(--line);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0; box-shadow: 0 -8px 30px rgba(28,26,22,.1);
  max-height: 52%; display: flex; flex-direction: column;
}
.map-panel .handle { width: 38px; height: 4px; border-radius: 999px; background: var(--line); margin: 9px auto 4px; }
.map-panel .scroll { overflow-y: auto; padding: 4px 16px 16px; }
.track-mini { display: flex; gap: 12px; padding: 13px 0; border-bottom: 1px solid var(--line); }
.track-mini:last-child { border-bottom: 0; }
.track-ico { width: 42px; height: 42px; border-radius: 10px; display: grid; place-items: center; flex: none; }
.map-filters { position: absolute; top: 12px; left: 12px; right: 12px; z-index: 500; display: flex; gap: 8px; overflow-x: auto; padding-bottom: 4px; scrollbar-width: none; }
.map-filters::-webkit-scrollbar { display: none; }
.map-filters .chip { flex: none; background: rgba(255,255,255,.92); backdrop-filter: blur(8px); box-shadow: var(--shadow); }
.map-style { position: absolute; top: 56px; left: 12px; z-index: 500; background: rgba(255,255,255,.92); backdrop-filter: blur(8px); box-shadow: var(--shadow-h); }
.map-style button { font-size: 12px; padding: 6px 12px; }
/* premium route pins that pop on any base */
.pin { box-shadow: 0 2px 8px rgba(0,0,0,.45); }
.map-dark .leaflet-container { background: #0d0d0f; }
.leaflet-container { transform: translate3d(0,0,0); isolation: isolate; }
.map-dark .map-panel { background: #17161a; border-color: #2a2830; color: #e7e4de; }
.map-dark .map-panel .track-mini { border-color: #2a2830; }
.map-dark .map-panel b { color: #f3f0ea; }
.map-dark .map-panel .meta { color: #9a958c; }

/* leaflet marker pin */
.pin { width: 26px; height: 26px; border-radius: 50% 50% 50% 0; transform: rotate(-45deg); border: 2px solid #fff; box-shadow: 0 2px 6px rgba(0,0,0,.3); }
.pin.d-easy { background: var(--easy);} .pin.d-medium { background: var(--medium);}
.pin.d-hard { background: var(--hard);} .pin.d-extreme { background: var(--extreme);}
.pin.me { background: #2f6fed; border-radius: 50%; transform: none; }
.pin.suggested { box-shadow: 0 0 0 2px var(--olive), 0 2px 6px rgba(0,0,0,.3); }

/* ---------- Garage ---------- */
.garage-vehicle { display: flex; align-items: center; gap: 14px; padding: 16px; }
.rig-badge { width: 46px; height: 46px; border-radius: 11px; background: var(--olive-wash); color: var(--olive); display: grid; place-items: center; }
.alert-row { display: flex; align-items: center; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.alert-row:last-child { border-bottom: 0; }

/* empty state */
.empty { text-align: center; padding: 48px 20px; color: var(--ink-3); }
.empty svg { width: 40px; height: 40px; opacity: .5; margin-bottom: 12px; }

/* ---------- Auth screen ---------- */
.auth {
  min-height: 100vh; display: grid; grid-template-columns: 1.05fr .95fr; position: relative;
}
.auth-brandside {
  position: relative; overflow: hidden; background: #16140F; color: #F7F5F1;
  padding: 56px 56px; display: flex; flex-direction: column; justify-content: space-between;
}
.auth-brandside .topo { opacity: .5;
  background-image:
    repeating-radial-gradient(circle at 35% 30%, transparent 0 44px, rgba(255,255,255,.05) 44px 45px),
    repeating-radial-gradient(circle at 80% 78%, transparent 0 54px, rgba(180,70,14,.18) 54px 56px); }
.auth-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0; opacity: .5; }
.auth-video-scrim { position: absolute; inset: 0; z-index: 0;
  background: linear-gradient(180deg, rgba(22,20,15,.55) 0%, rgba(22,20,15,.3) 42%, rgba(22,20,15,.9) 100%); }
.auth-formside { display: grid; place-items: center; padding: 40px 28px; background: var(--bone); }
.auth-card { width: 100%; max-width: 380px; }
.auth-social { display: flex; flex-direction: column; gap: 10px; }
.sso {
  display: flex; align-items: center; justify-content: center; gap: 10px; width: 100%;
  padding: 12px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--paper);
  font-weight: 550; font-size: 14.5px; transition: border-color .16s, transform .1s;
}
.sso:hover { border-color: var(--ink-3); } .sso:active { transform: scale(.99); }
.sso-google { padding: 14px; font-weight: 650; font-size: 15.5px; border-color: var(--ink-3); box-shadow: var(--shadow); }
.sso-google:hover { border-color: var(--ink); box-shadow: var(--shadow-h); }
.sso-google svg { width: 20px; height: 20px; }
.divider { display: flex; align-items: center; gap: 14px; color: var(--ink-3); font-size: 12px; margin: 4px 0; }
.divider::before, .divider::after { content: ""; height: 1px; background: var(--line); flex: 1; }
.stat-strip { display: flex; gap: 28px; }
.stat-strip .n { font-family: var(--serif); font-size: 30px; letter-spacing: -0.03em; }

/* toast */
.toast {
  position: fixed; left: 50%; bottom: calc(var(--nav-h) + 18px); transform: translateX(-50%) translateY(20px);
  background: var(--ink); color: #fff; padding: 12px 18px; border-radius: 999px; font-size: 14px;
  z-index: 200; opacity: 0; transition: opacity .25s, transform .25s; box-shadow: var(--shadow-h);
  display: flex; align-items: center; gap: 9px; pointer-events: none; max-width: 90vw;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast svg { color: #7ED0A0; }

/* modal / sheet */
.scrim { position: fixed; inset: 0; background: rgba(28,26,22,.42); z-index: 100; opacity: 0; transition: opacity .2s; }
.scrim.show { opacity: 1; }
.sheet {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 110; background: var(--paper);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0; padding: 8px 20px 26px;
  transform: translateY(100%); transition: transform .32s cubic-bezier(.16,1,.3,1); max-height: 88vh; overflow-y: auto;
}
.sheet.show { transform: none; }
.sheet .grab { width: 40px; height: 4px; border-radius: 999px; background: var(--line); margin: 8px auto 14px; }

/* skeleton */
.sk { background: linear-gradient(90deg,#efece6 25%,#f6f3ee 37%,#efece6 63%); background-size: 400% 100%; animation: sk 1.4s ease infinite; border-radius: 8px; }
@keyframes sk { 0%{background-position:100% 50%} 100%{background-position:0 50%} }

/* scroll reveal */
.reveal { opacity: 0; transform: translateY(12px); }
.reveal.in { opacity: 1; transform: none; transition: opacity .6s cubic-bezier(.16,1,.3,1), transform .6s cubic-bezier(.16,1,.3,1); }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- Desktop ---------- */
@media (min-width: 780px) {
  :root { --nav-h: 0px; }
  .grid-cats { grid-template-columns: repeat(3,1fr); }
  .grid-parts { grid-template-columns: repeat(4,1fr); }
  .tabbar { display: none; }
  .app { padding-bottom: 0; }
  .desknav { display: flex !important; }
  .map-wrap { height: calc(100vh - 58px); }
  .map-panel { left: auto; right: 16px; top: 64px; bottom: 16px; width: 360px; max-height: none;
    border-radius: var(--radius-lg); border: 1px solid var(--line); }
  .map-panel .handle { display: none; }
}
@media (max-width: 779px) {
  .desknav { display: none !important; }
  .auth { grid-template-columns: 1fr; }
  .auth-brandside { display: none; }
  .grid-bento { grid-template-columns: 1fr; }
}
.desknav { display: none; gap: 4px; align-items: center; }
.desknav a { padding: 8px 14px; border-radius: 999px; font-size: 14px; color: var(--ink-2); font-weight: 550; transition: background .15s,color .15s; }
.desknav a.active { background: var(--ink); color: #fff; }
.desknav a:not(.active):hover { background: var(--paper-2); color: var(--ink); }