/* Timberline — Design Foundations V1
   Implemented from "Timberline Foundations.dc.html" (Claude Design). */

:root {
  --c-page: #EBE3D2;
  --c-paper: #F4EEE1;
  --c-vellum: #ECE4D2;
  --c-ink: #251C12;
  --c-coffee: #4E3B2A;
  --c-rosewood: #7C3626;
  --c-forest: #3A4A33;
  --c-brass: #9C7A45;
  --c-brass-text: #6F5626;
  --c-muted: #5D4F3F;
  --c-body: #3E332A;
  --c-faded: #8A7A66;
  --c-faded-text: #6E6152;
  --c-parchment: #E9DFC9;
  --c-parch-muted: #B8A88C;
  --c-parch-body: #CBBDA3;
  --line-14: rgba(37, 28, 18, 0.14);
  --line-18: rgba(37, 28, 18, 0.18);
  --line-25: rgba(37, 28, 18, 0.25);
  --f-display: 'Libre Caslon Display', serif;
  --f-species: 'Libre Caslon Text', serif;
  --f-ui: 'Archivo', sans-serif;
  --f-mono: 'IBM Plex Mono', monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--c-page);
  color: var(--c-ink);
  font-family: var(--f-ui);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--c-rosewood); }
a:hover { color: var(--c-ink); }
::selection { background: var(--c-rosewood); color: var(--c-paper); }

h1, h2, h3 { font-weight: 400; margin: 0; }

:focus-visible { outline: 2px solid var(--c-rosewood); outline-offset: 2px; }

/* ---------- layout primitives ---------- */

.section { padding: 40px 56px 8px; max-width: 1360px; }
.section-wide { max-width: 1700px; }
.section-last { padding: 36px 56px 72px; }

.flex-row { display: flex; flex-wrap: wrap; align-items: flex-start; }

.kicker {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--c-muted);
  margin-bottom: 6px;
}

.kicker-sm {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--c-muted);
}

.kicker-brass { color: var(--c-brass-text); }

.kicker-rosewood { color: var(--c-rosewood); }

.section-title {
  font-family: var(--f-display);
  font-size: 30px;
  margin-bottom: 20px;
}

.panel {
  background: var(--c-paper);
  border: 1px solid var(--line-14);
  border-radius: 3px;
}

/* ---------- masthead ---------- */

.masthead { padding: 56px 56px 8px; }

.masthead-brand { display: flex; align-items: center; gap: 14px; }

.masthead-wordmark {
  font-family: var(--f-display);
  font-size: 24px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.masthead-version {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--c-muted);
  border: 1px solid var(--line-25);
  padding: 4px 9px;
  border-radius: 2px;
  margin-left: 6px;
}

.masthead-row { display: flex; flex-wrap: wrap; gap: 28px; margin-top: 28px; align-items: flex-start; }

.assumptions-card {
  flex: 1 1 520px;
  max-width: 720px;
  background: var(--c-paper);
  border: 1px solid var(--line-14);
  border-radius: 3px;
  padding: 26px 30px;
  box-shadow: 0 1px 2px rgba(37, 28, 18, 0.05);
}

.assumptions-card .kicker-rosewood { margin-bottom: 12px; }

.assumptions-list {
  margin: 0;
  padding-left: 18px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--c-body);
  display: grid;
  gap: 6px;
}

/* ---------- 01 palette ---------- */

.swatches { display: flex; flex-wrap: wrap; gap: 14px; }
.swatch { width: 148px; }
.swatch-chip { height: 110px; border-radius: 3px; }
.swatch-bordered { border: 1px solid var(--line-18); }
.swatch-name { font-size: 13px; font-weight: 600; margin-top: 8px; }
.swatch-meta { font-family: var(--f-mono); font-size: 11px; color: var(--c-muted); }

/* ---------- 02 type ---------- */

.type-card {
  background: var(--c-paper);
  border: 1px solid var(--line-14);
  border-radius: 3px;
  padding: 34px 38px;
  max-width: 900px;
  box-shadow: 0 1px 2px rgba(37, 28, 18, 0.05);
  display: grid;
  gap: 26px;
}

.type-label {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--c-brass-text);
  margin-bottom: 8px;
}

.type-display {
  font-family: var(--f-display);
  font-size: clamp(34px, 5vw, 54px);
  line-height: 1.08;
  text-wrap: pretty;
}

.type-species { font-family: var(--f-species); font-style: italic; font-size: 27px; color: var(--c-coffee); }
.type-species-sub { font-family: var(--f-ui); font-style: normal; font-size: 15px; color: var(--c-muted); }
.type-body { font-size: 15.5px; line-height: 1.6; max-width: 56ch; color: var(--c-body); }
.type-registry { font-family: var(--f-mono); font-size: 13px; letter-spacing: 0.1em; color: var(--c-ink); }

/* ---------- 03 provenance card ---------- */

.prov-card {
  width: 440px;
  max-width: 100%;
  background: linear-gradient(180deg, #EFE7D4, #EAE1CC);
  border: 1.5px solid var(--c-ink);
  border-radius: 2px;
  padding: 5px;
  box-shadow: 0 2px 6px rgba(37, 28, 18, 0.12);
}

.prov-card-inner {
  border: 1px solid rgba(37, 28, 18, 0.55);
  border-radius: 1px;
  padding: 22px 24px 20px;
}

.prov-header { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.prov-header-left { font-family: var(--f-mono); font-size: 9.5px; letter-spacing: 0.22em; color: var(--c-coffee); }
.prov-header-right { font-family: var(--f-mono); font-size: 9.5px; letter-spacing: 0.14em; color: var(--c-coffee); }

.prov-rule { height: 1px; background: rgba(37, 28, 18, 0.35); margin: 14px 0 16px; }

.prov-species { font-family: var(--f-species); font-style: italic; font-size: 29px; line-height: 1.1; }
.prov-common { font-size: 13px; color: var(--c-muted); margin-top: 4px; }

.prov-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 20px; margin-top: 20px; }
.prov-field { font-family: var(--f-mono); font-size: 9.5px; letter-spacing: 0.18em; color: var(--c-brass-text); }
.prov-value { font-size: 14px; margin-top: 3px; }
.prov-value-mono { font-family: var(--f-mono); font-size: 13px; overflow-wrap: anywhere; }

.prov-footer { display: flex; justify-content: space-between; align-items: flex-end; margin-top: 24px; gap: 12px; flex-wrap: wrap; }

.villa-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 1px solid var(--c-forest);
  color: var(--c-forest);
  border-radius: 2px;
  padding: 6px 10px;
  font-family: var(--f-mono);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  white-space: nowrap;
}

.villa-badge [data-villa-name] { margin-left: 0.16em; }

.villa-dot { width: 5px; height: 5px; border-radius: 50%; background: var(--c-forest); display: inline-block; }

.piece-stamp {
  border: 2px solid var(--c-rosewood);
  color: var(--c-rosewood);
  border-radius: 2px;
  padding: 9px 13px;
  transform: rotate(-3deg);
  font-family: var(--f-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  line-height: 1.5;
  text-align: center;
  opacity: 0.92;
  white-space: nowrap;
  margin-left: auto;
}

.prov-notes { flex: 1 1 300px; max-width: 420px; display: grid; gap: 14px; padding-top: 6px; }
.prov-notes-body { font-size: 13.5px; line-height: 1.65; color: var(--c-body); }
.prov-notes-fine { font-size: 12.5px; color: var(--c-muted); line-height: 1.6; }

/* ---------- 04 drop hero ---------- */

.frame {
  background: var(--c-paper);
  border: 1px solid rgba(37, 28, 18, 0.16);
  border-radius: 3px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(37, 28, 18, 0.1);
}

.frame-mobile { width: 375px; }
.frame-desktop { width: 1200px; max-width: 100%; }

.frame-mobile-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line-14);
}

.frame-mobile-brand { display: flex; align-items: center; gap: 9px; }

.frame-mobile-wordmark {
  font-family: var(--f-display);
  font-size: 15px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.frame-mobile-menu { font-family: var(--f-mono); font-size: 10px; letter-spacing: 0.14em; color: var(--c-forest); }

.frame-mobile-body { padding: 22px 18px 26px; }

.drop-kicker { font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.2em; color: var(--c-rosewood); }

.hero-title-m { font-family: var(--f-display); font-size: 37px; line-height: 1.06; margin-top: 10px; text-wrap: pretty; }
.hero-species-m { font-family: var(--f-species); font-style: italic; font-size: 17px; color: var(--c-coffee); margin-top: 8px; }
.hero-species-sub-m { font-family: var(--f-ui); font-style: normal; font-size: 13px; color: var(--c-muted); }

.ledger { display: flex; align-items: flex-end; }
.ledger-m { gap: 3px; margin-top: 20px; }
.ledger-d { gap: 4px; }
.ledger-gone { gap: 4px; margin-top: 30px; }

.ledger-stroke { background: var(--c-ink); }
.ledger-m .ledger-stroke { width: 3px; }
.ledger-d .ledger-stroke { width: 4px; }
.ledger-gone .ledger-stroke { width: 4px; background: var(--c-parchment); opacity: 0.24; }

.remaining-row { display: flex; align-items: baseline; }
.remaining-num-m { font-family: var(--f-display); font-size: 34px; }
.remaining-label-m { font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.16em; color: var(--c-coffee); }
.remaining-num-d { font-family: var(--f-display); font-size: 44px; }
.remaining-label-d { font-family: var(--f-mono); font-size: 12px; letter-spacing: 0.18em; color: var(--c-coffee); }

.hero-copy-m { font-size: 14px; line-height: 1.6; color: var(--c-body); margin-top: 10px; text-wrap: pretty; }
.hero-ctas-m { display: grid; gap: 10px; margin-top: 20px; }

.btn {
  display: block;
  text-align: center;
  border-radius: 2px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
}

.btn { transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease; }
.btn-primary { background: var(--c-ink); color: var(--c-paper); padding: 15px 20px; border: none; }
.btn-primary:hover { color: var(--c-paper); background: var(--c-coffee); }
.btn-secondary { border: 1.5px solid var(--c-forest); color: var(--c-forest); padding: 13px 20px; }
.btn-secondary:hover { color: var(--c-forest); background: rgba(58, 74, 51, 0.06); }
.btn-disabled { border: 1px solid var(--line-25); color: var(--c-faded-text); padding: 13px 20px; cursor: default; }

.hero-link { color: var(--c-rosewood); text-decoration: underline; text-underline-offset: 3px; }

.frame-mobile-footer {
  border-top: 1px solid var(--line-14);
  padding: 12px 18px;
  font-family: var(--f-mono);
  font-size: 9.5px;
  letter-spacing: 0.12em;
  color: var(--c-muted);
}

.frame-desktop-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  border-bottom: 1px solid var(--line-14);
}

.frame-desktop-wordmark {
  font-family: var(--f-display);
  font-size: 17px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.frame-desktop-nav {
  display: flex;
  gap: 26px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--c-coffee);
}

.nav-accent { color: var(--c-rosewood); }

.hero-split { display: grid; grid-template-columns: 1fr 1fr; min-height: 560px; }
.hero-split-left { padding: 48px 44px 40px; display: flex; flex-direction: column; justify-content: center; }
.hero-split-right { position: relative; }

.hero-title-d { font-family: var(--f-display); font-size: clamp(36px, 5.5vw, 58px); line-height: 1.04; margin-top: 14px; text-wrap: pretty; }
.hero-species-d { font-family: var(--f-species); font-style: italic; font-size: 21px; color: var(--c-coffee); margin-top: 12px; }
.hero-species-sub-d { font-family: var(--f-ui); font-style: normal; font-size: 14px; color: var(--c-muted); }
.hero-copy-d { font-size: 15px; line-height: 1.6; color: var(--c-body); margin-top: 12px; max-width: 46ch; text-wrap: pretty; }
.hero-ctas-d { display: flex; gap: 14px; align-items: center; margin-top: 28px; }

.frame-desktop-footer {
  border-top: 1px solid var(--line-14);
  padding: 12px 32px;
  display: flex;
  gap: 28px;
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--c-muted);
}

/* ---------- 05 ledger & prices ---------- */

.panel-ledger { flex: 1 1 420px; max-width: 560px; padding: 28px 32px; }
.panel-prices { flex: 1 1 380px; max-width: 560px; padding: 28px 32px; }

.ledger-legend { display: flex; gap: 22px; margin-top: 18px; font-size: 12.5px; color: var(--c-body); }
.legend-item { display: flex; align-items: center; gap: 8px; }
.legend-stroke { width: 3px; height: 16px; background: var(--c-ink); display: inline-block; }
.legend-stroke-sold { opacity: 0.22; }

.panel-note { font-size: 12.5px; color: var(--c-muted); line-height: 1.6; margin-top: 12px; }

.price-list { display: grid; gap: 12px; }
.price-row { display: flex; justify-content: space-between; align-items: baseline; }
.price-name { font-size: 14px; color: var(--c-body); }
.price-amount { font-family: var(--f-mono); font-size: 15px; }
.price-rule { height: 1px; background: rgba(37, 28, 18, 0.2); margin: 18px 0 12px; }
.panel-prices .panel-note { margin-top: 0; }

/* ---------- 06 piece states & buy flow ---------- */

.piece-card {
  width: 272px;
  background: var(--c-paper);
  border: 1px solid var(--line-14);
  border-radius: 3px;
  overflow: hidden;
}

.piece-body { padding: 16px 18px 18px; }
.piece-toprow { display: flex; justify-content: space-between; align-items: baseline; }
.piece-no { font-family: var(--f-mono); font-size: 10px; letter-spacing: 0.16em; color: var(--c-coffee); }
.piece-no-sold { color: var(--c-faded-text); }

.piece-status { display: inline-flex; align-items: center; gap: 6px; font-family: var(--f-mono); font-size: 9.5px; letter-spacing: 0.14em; text-align: right; }
.piece-status-available { color: var(--c-forest); }
.piece-status-reserved { color: var(--c-brass-text); }
.piece-status-sold { color: var(--c-rosewood); }
.piece-status-enquiry { color: var(--c-brass-text); }
.status-dot { width: 5px; height: 5px; border-radius: 50%; }

.piece-title { font-family: var(--f-display); font-size: 21px; margin-top: 8px; }
.piece-title-sold { color: var(--c-faded-text); }

.piece-bottomrow { display: flex; justify-content: space-between; align-items: baseline; margin-top: 10px; }
.piece-price { font-family: var(--f-mono); font-size: 15px; }
.piece-price-sold { color: var(--c-faded-text); text-decoration: line-through; }
.piece-dims { font-size: 12px; color: var(--c-muted); }
.piece-dims-sold { color: var(--c-faded-text); }

.held-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--c-brass-text);
  color: var(--c-paper);
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  padding: 6px 9px;
  border-radius: 2px;
  pointer-events: none;
}

.sold-image-wrap { width: 100%; height: 100%; filter: grayscale(0.7) brightness(0.96); opacity: 0.75; }

.sold-stamp {
  position: absolute;
  top: 14px;
  right: 12px;
  border: 2px solid var(--c-rosewood);
  color: var(--c-rosewood);
  font-family: var(--f-mono);
  font-size: 10.5px;
  letter-spacing: 0.2em;
  padding: 6px 10px;
  border-radius: 2px;
  transform: rotate(4deg);
  background: rgba(244, 238, 225, 0.85);
  pointer-events: none;
}

.flow-col { flex: 1 1 300px; max-width: 420px; display: grid; gap: 14px; }
.flow-panel { padding: 22px 24px; display: grid; gap: 16px; }
.flow-step { display: flex; gap: 12px; align-items: flex-start; }
.flow-num { font-family: var(--f-mono); font-size: 11px; color: var(--c-brass-text); padding-top: 2px; }
.flow-text { font-size: 13.5px; line-height: 1.55; color: var(--c-body); }

.buttons-panel { padding: 22px 24px; display: grid; gap: 12px; }
.buttons-note { font-size: 12px; color: var(--c-muted); line-height: 1.55; }

/* ---------- 07 archive record ---------- */

.archive-intro { font-size: 13px; color: var(--c-muted); margin-bottom: 20px; }

.archive-card {
  width: 900px;
  max-width: 100%;
  background: var(--c-ink);
  color: var(--c-parchment);
  border-radius: 3px;
  padding: 40px 44px;
  box-shadow: 0 2px 10px rgba(37, 28, 18, 0.25);
}

.archive-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; flex-wrap: wrap; }
.archive-kicker { font-family: var(--f-mono); font-size: 10px; letter-spacing: 0.2em; color: var(--c-brass); }
.archive-title { font-family: var(--f-display); font-size: 36px; margin-top: 10px; }
.archive-species { font-family: var(--f-species); font-style: italic; font-size: 17px; color: var(--c-parch-muted); margin-top: 6px; }

.archive-stamp {
  border: 2px solid var(--c-parchment);
  color: var(--c-parchment);
  border-radius: 2px;
  padding: 10px 14px;
  transform: rotate(3deg);
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  opacity: 0.9;
}

.archive-stats {
  display: flex;
  gap: 28px;
  margin-top: 18px;
  font-family: var(--f-mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  color: var(--c-parch-muted);
  flex-wrap: wrap;
}

.archive-copy { font-size: 13.5px; line-height: 1.6; color: var(--c-parch-body); margin-top: 16px; max-width: 60ch; }

/* ---------- next steps ---------- */

.next-card {
  background: var(--c-vellum);
  border: 1px dashed rgba(37, 28, 18, 0.3);
  border-radius: 3px;
  padding: 20px 26px;
  max-width: 720px;
}

.next-copy { font-size: 13.5px; line-height: 1.7; color: var(--c-body); }

/* ---------- image slots ---------- */

image-slot {
  display: block;
  position: relative;
  width: 100%;
  height: 100%;
  cursor: pointer;
  overflow: hidden;
  background:
    repeating-linear-gradient(-45deg, rgba(37, 28, 18, 0.03) 0 10px, transparent 10px 20px),
    var(--c-vellum);
}

image-slot .slot-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 18px;
  text-align: center;
}

image-slot.is-editable .slot-placeholder {
  border: 1px dashed rgba(37, 28, 18, 0.28);
  margin: 10px;
}

image-slot:not(.is-editable) { cursor: default; }

image-slot .slot-label {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--c-muted);
  text-transform: uppercase;
  line-height: 1.7;
}

image-slot .slot-hint {
  font-family: var(--f-mono);
  font-size: 8.5px;
  letter-spacing: 0.18em;
  color: var(--c-brass);
}

image-slot img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: sepia(0.05) saturate(1.02);
}

image-slot.dragover { outline: 2px solid var(--c-brass); outline-offset: -2px; }
image-slot.dragover .slot-placeholder { border-color: var(--c-brass); }

/* ---------- tweaks panel ---------- */

.tweaks {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 50;
  width: 248px;
  background: var(--c-paper);
  border: 1px solid rgba(37, 28, 18, 0.35);
  border-radius: 3px;
  padding: 14px 16px 16px;
  box-shadow: 0 4px 14px rgba(37, 28, 18, 0.18);
  display: grid;
  gap: 12px;
}

.tweaks-header { display: flex; justify-content: space-between; align-items: baseline; }
.tweaks-header .kicker-sm { color: var(--c-rosewood); }
.tweaks-sub { font-family: var(--f-mono); font-size: 8.5px; letter-spacing: 0.18em; color: var(--c-brass); }

.tweaks-row { display: flex; align-items: center; gap: 10px; }
.tweaks-label { font-family: var(--f-mono); font-size: 9px; letter-spacing: 0.14em; color: var(--c-muted); width: 62px; flex-shrink: 0; }
.tweaks-value { font-family: var(--f-mono); font-size: 12px; width: 22px; text-align: right; }

.tweaks input[type="range"] {
  flex: 1;
  min-width: 0;
  accent-color: var(--c-rosewood);
  height: 18px;
}

.tweaks-seg { display: flex; gap: 6px; }

.seg-btn {
  font-family: var(--f-mono);
  font-size: 8.5px;
  letter-spacing: 0.12em;
  color: var(--c-muted);
  background: transparent;
  border: 1px solid var(--line-25);
  border-radius: 2px;
  padding: 5px 8px;
  cursor: pointer;
}

.seg-btn.seg-active {
  background: var(--c-ink);
  color: var(--c-paper);
  border-color: var(--c-ink);
}

/* ---------- responsive ---------- */

@media (max-width: 980px) {
  .hero-split { grid-template-columns: 1fr; min-height: 0; }
  .hero-split-right { min-height: 340px; }
}

@media (max-width: 720px) {
  .section, .masthead { padding-left: 20px; padding-right: 20px; }
  .masthead { padding-top: 36px; }
  .section-last { padding-bottom: 120px; }
  .frame-desktop-nav { display: none; }
  .archive-card { padding: 28px 22px; }
  .tweaks { right: 12px; bottom: 12px; width: calc(100% - 24px); max-width: 300px; }
}

/* ---------- refinements: mobile + provenance ---------- */

[id] { scroll-margin-top: 84px; }

@media (max-width: 560px) {
  .ledger-d { gap: 2px; }
  .ledger-d .ledger-stroke { width: 3px; }
  .villa-badge { white-space: normal; }
  .prov-grid { grid-template-columns: 1fr; gap: 12px; }
}