/* ============================================================
   SENTIÈRES — Atlas outdoor de France
   Shared design tokens & utilities (warm handcrafted / field-journal)
   ============================================================ */

:root {
  color-scheme: light;
  /* Palette — Papier (default) */
  --paper: #F1E6D2;
  --paper-2: #EADCC2;
  --paper-3: #E3D2B2;
  --paper-deep: #D9C39B;

  --ink: #1E2A1D;
  --ink-2: #3B4535;
  --ink-soft: #5A6350;
  --ink-faint: #8A8A74;

  --moss: #4A5D3A;
  --moss-2: #6E8159;
  --moss-deep: #2E3A22;

  --terra: #B5533C;
  --terra-deep: #8A3A26;
  --terra-soft: #D98E76;

  --stream: #5B7A8C;
  --stream-deep: #3A5668;

  --ochre: #C89B4A;
  --lichen: #C8B88A;

  /* Eco impact */
  --eco-leger: #6E8159;
  --eco-modere: #C89B4A;
  --eco-sensible: #B5533C;

  /* Type */
  --display: "Fraunces", "EB Garamond", Georgia, serif;
  --body: "Newsreader", "Source Serif Pro", Georgia, serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;

  /* Spacing (based on 4px unit, airy) */
  --s-1: 4px;
  --s-2: 8px;
  --s-3: 12px;
  --s-4: 16px;
  --s-5: 24px;
  --s-6: 32px;
  --s-7: 48px;
  --s-8: 64px;
  --s-9: 96px;

  /* Borders & corners (field journal → soft, stamped) */
  --rad-sm: 2px;
  --rad-md: 4px;
  --rad-lg: 8px;
  --hairline: 1px solid rgba(30, 42, 29, 0.18);
  --rule: 1px solid rgba(30, 42, 29, 0.35);
  --rule-thick: 2px solid var(--ink);

  /* Shadows — subtle paper press, not drop shadows */
  --press: 0 1px 0 rgba(30,42,29,0.12), 0 0 0 0.5px rgba(30,42,29,0.08);
  --stamp-shadow: 0 2px 0 rgba(30,42,29,0.25);
}

/* Ardoise mode (dark warm) */
[data-palette="ardoise"] {
  color-scheme: dark;
  --paper: #1F2220;
  --paper-2: #262A26;
  --paper-3: #2E332D;
  --paper-deep: #373C36;

  --ink: #EFE4CC;
  --ink-2: #D9CCB0;
  --ink-soft: #B4A88C;
  --ink-faint: #7B745E;

  --moss: #9AB284;
  --moss-2: #B4C7A0;
  --moss-deep: #6E8159;

  --terra: #E8876A;
  --terra-deep: #B5533C;
  --terra-soft: #F0A38A;

  --stream: #8FADBF;
  --stream-deep: #5B7A8C;

  --ochre: #E3B870;
  --lichen: #D8CA9A;

  --hairline: 1px solid rgba(239, 228, 204, 0.16);
  --rule: 1px solid rgba(239, 228, 204, 0.32);
  --rule-thick: 2px solid var(--ink);
}

/* ---------- Base ---------- */
* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--paper);
  font-feature-settings: "onum" 1, "liga" 1;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--paper);
  background:
    radial-gradient(1200px 600px at 15% -10%, rgba(184,140,90,0.08), transparent 60%),
    radial-gradient(900px 500px at 90% 110%, rgba(74,93,58,0.07), transparent 60%),
    url("/assets/paper-texture.svg"),
    var(--paper);
  background-size: auto, auto, 480px 480px, auto;
}

h1, h2, h3, h4, h5 {
  font-family: var(--display);
  font-weight: 500;
  color: var(--ink);
  letter-spacing: -0.01em;
  margin: 0 0 var(--s-3);
}

h1 { font-size: clamp(40px, 5vw, 72px); line-height: 1; font-weight: 400; letter-spacing: -0.02em; }
h2 { font-size: clamp(28px, 2.6vw, 40px); line-height: 1.1; }
h3 { font-size: clamp(20px, 1.6vw, 26px); line-height: 1.2; }
h4 { font-size: 18px; line-height: 1.3; }

p { margin: 0 0 var(--s-4); max-width: 62ch; }

.display-italic { font-family: var(--display); font-style: italic; font-weight: 300; }

/* Mono label */
.label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.label-sm {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

/* ---------- Layout shell ---------- */
.shell {
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 var(--s-6);
}

/* ---------- Top bar ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--s-4) var(--s-6);
  border-bottom: var(--hairline);
  gap: var(--s-5);
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  text-decoration: none;
  color: var(--ink);
}

.brand-mark {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border: 1.5px solid var(--ink);
  border-radius: 50%;
  position: relative;
}
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  border: 1px solid var(--ink);
  border-style: dashed;
}

.brand-word {
  font-family: var(--display);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.01em;
}
.brand-word small {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-soft);
  display: block;
  margin-top: -2px;
}

.nav {
  display: flex;
  gap: var(--s-5);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.nav a {
  color: var(--ink-2);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
}
.nav a:hover { border-bottom-color: var(--ink); color: var(--ink); }
.nav a.active { color: var(--terra); border-bottom-color: var(--terra); }

.topbar-tools {
  display: flex; align-items: center; gap: var(--s-3);
}

/* ---------- Buttons / Stamp style ---------- */
.btn {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 10px 18px;
  border-radius: var(--rad-sm);
  border: 1.5px solid var(--ink);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  transition: transform 0.08s ease, background 0.15s ease;
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn:active { transform: translateY(1px); }

.btn.primary {
  background: var(--ink);
  color: var(--paper);
}
.btn.primary:hover { background: var(--terra); border-color: var(--terra); }

.btn.terra {
  background: var(--terra);
  border-color: var(--terra);
  color: #FBEFD8;
}
.btn.terra:hover { background: var(--terra-deep); border-color: var(--terra-deep); }

.btn.ghost { border-color: rgba(30,42,29,0.25); }

/* Stamp badge (ink stamp feel) */
.stamp {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px 5px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--terra);
  border: 1.5px solid currentColor;
  border-radius: 2px;
  background: transparent;
  transform: rotate(-1.5deg);
  line-height: 1;
}
.stamp.ink { color: var(--ink); }
.stamp.moss { color: var(--moss); }
.stamp.stream { color: var(--stream); }
.stamp.ochre { color: var(--ochre); }
.stamp.filled {
  background: currentColor;
}
.stamp.filled > * { color: var(--paper); }

/* Small tag (inline list chip, not stamped) */
.tag {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 2px;
  color: var(--ink-2);
  background: rgba(30,42,29,0.06);
  border: 1px solid rgba(30,42,29,0.12);
}
.tag .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; opacity: 0.7; }

/* Eco impact chip */
.eco {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 2px;
  border: 1px dashed;
  background: rgba(255,255,255,0.25);
}
.eco[data-level="leger"]   { color: var(--eco-leger);   border-color: var(--eco-leger); }
.eco[data-level="modere"]  { color: var(--eco-modere);  border-color: var(--eco-modere); }
.eco[data-level="sensible"]{ color: var(--eco-sensible);border-color: var(--eco-sensible); }
.eco svg { width: 11px; height: 11px; }

/* Field card (trail / spot) */
.card {
  background: var(--paper-2);
  border: var(--hairline);
  border-radius: var(--rad-md);
  padding: var(--s-5);
  box-shadow: var(--press);
  position: relative;
  overflow: hidden;
}
.card.elevated { background: var(--paper); }

.card-title {
  font-family: var(--display);
  font-size: 22px;
  font-weight: 500;
  line-height: 1.15;
  margin: 0 0 4px;
}

/* Inline metric */
.metric {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  font-family: var(--display);
}
.metric .n { font-size: 28px; font-weight: 500; letter-spacing: -0.02em; }
.metric .u { font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-soft); }

/* Divider */
.rule { height: 1px; background: rgba(30,42,29,0.2); border: 0; margin: var(--s-5) 0; }
.rule.dashed { background: none; border-top: 1px dashed rgba(30,42,29,0.35); }

/* Two-column meta list */
.meta-list {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 8px 16px;
  font-size: 14px;
}
.meta-list dt {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding-top: 3px;
}
.meta-list dd { margin: 0; }

/* Placeholder image (striped, monospace caption) */
.ph {
  background:
    repeating-linear-gradient(135deg,
      rgba(30,42,29,0.05) 0 12px,
      rgba(30,42,29,0.09) 12px 24px);
  border: 1px dashed rgba(30,42,29,0.28);
  display: grid;
  place-items: center;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border-radius: var(--rad-sm);
  aspect-ratio: 3/2;
  position: relative;
  overflow: hidden;
}
.ph .ph-label { background: var(--paper); padding: 4px 8px; border: 1px solid rgba(30,42,29,0.2); }

/* Map placeholder (contour lines) */
.topo {
  position: relative;
  background: var(--paper-3);
  overflow: hidden;
  border-radius: var(--rad-md);
}
.topo::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("/assets/contours.svg");
  background-size: 420px 420px;
  opacity: 0.5;
  mix-blend-mode: multiply;
}
[data-palette="ardoise"] .topo::before { opacity: 0.35; mix-blend-mode: screen; }

/* Footer */
.foot {
  margin-top: var(--s-9);
  padding: var(--s-7) var(--s-6) var(--s-6);
  border-top: var(--rule);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-5);
  justify-content: space-between;
  align-items: baseline;
}
.foot a { color: var(--ink); text-decoration: none; border-bottom: 1px solid rgba(30,42,29,0.3); }

/* ---------- Utilities ---------- */
.row { display: flex; gap: var(--s-3); align-items: center; flex-wrap: wrap; }
.col { display: flex; flex-direction: column; gap: var(--s-3); }
.between { justify-content: space-between; }
.grow { flex: 1; }
.mono { font-family: var(--mono); }
.serif { font-family: var(--body); }
.display { font-family: var(--display); }
.italic { font-style: italic; }
.muted { color: var(--ink-soft); }
.tiny { font-size: 12px; }

.kbd {
  display: inline-grid;
  place-items: center;
  min-width: 20px;
  padding: 2px 6px;
  font-family: var(--mono);
  font-size: 10px;
  border: 1px solid rgba(30,42,29,0.35);
  border-bottom-width: 2px;
  border-radius: 3px;
  color: var(--ink-2);
  background: var(--paper);
}

/* Deckled edge decorative rule */
.deckle {
  height: 12px;
  background-image: radial-gradient(circle at 6px 0, var(--paper) 4px, transparent 5px);
  background-size: 12px 12px;
  background-repeat: repeat-x;
}

/* Section heading with rule */
.section-head {
  display: flex;
  align-items: baseline;
  gap: var(--s-4);
  margin-bottom: var(--s-5);
}
.section-head::after {
  content: "";
  flex: 1;
  height: 1px;
  background: rgba(30,42,29,0.25);
}
.section-head .num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--ink-soft);
}

/* Fine print paragraph */
.smallprint {
  font-family: var(--mono);
  font-size: 10.5px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}

/* Link */
a.link {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--ink);
  padding-bottom: 1px;
}
a.link:hover { color: var(--terra); border-bottom-color: var(--terra); }

/* ---------- Density tweak ---------- */
[data-density="compact"] {
  --s-4: 12px;
  --s-5: 18px;
  --s-6: 24px;
  --s-7: 36px;
  --s-8: 48px;
  --s-9: 64px;
  font-size: 15px;
}

/* ---------- Tweaks Panel ---------- */
.tweaks {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 280px;
  background: var(--paper);
  border: 1.5px solid var(--ink);
  border-radius: var(--rad-md);
  padding: 16px;
  box-shadow: 0 6px 0 rgba(30,42,29,0.15);
  z-index: 100;
  font-family: var(--body);
  display: none;
}
.tweaks.open { display: block; }
.tweaks h5 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin: 0 0 12px;
  display: flex; justify-content: space-between; align-items: center;
}
.tweaks label {
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 10px 0 4px;
}
.tweaks .seg {
  display: flex;
  border: 1px solid var(--ink);
  border-radius: 2px;
  overflow: hidden;
}
.tweaks .seg button {
  flex: 1;
  padding: 6px 4px;
  background: transparent;
  border: 0;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
  cursor: pointer;
}
.tweaks .seg button.active { background: var(--ink); color: var(--paper); }
.tweaks .close {
  background: none;
  border: 0;
  font-family: var(--mono);
  font-size: 16px;
  cursor: pointer;
  color: var(--ink);
  padding: 0;
}

/* scrollbar subtle */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: rgba(30,42,29,0.2); border-radius: 10px; }
::-webkit-scrollbar-track { background: transparent; }