/* InfraredSaunaSpot - design system tokens + shell */

:root {
  /* surfaces */
  --bg: #f4f5f6;
  --paper: #fafbfc;
  --paper-2: #ffffff;
  --line: #e4e7ea;
  --line-2: #eef0f2;
  --hush: #f0f2f4;

  /* deep cold */
  --ink: #0a1620;
  --ink-2: #142433;
  --ink-3: #1c3041;

  /* text */
  --text: #0a1620;
  --text-2: #3a5868;
  --text-3: #6b8290;
  --text-on-dark: #e8eef2;
  --text-on-dark-2: #9fb5c4;

  /* accents - icy blue */
  --ember: #7dd3fc;
  --ember-2: #bae6fd;
  --ember-3: #e0f4fe;
  --ember-deep: #0ea5e9;

:root {
  /* surfaces */
  --bg: #f3eee5;
  --paper: #faf6ef;
  --paper-2: #fffdf8;
  --line: #e8dfcd;
  --line-2: #f0e8d6;
  --hush: #efe7d4;

  /* deep warm */
  --ink: #1a0f06;
  --ink-2: #2a1c10;
  --ink-3: #3d2a18;

  /* text */
  --text: #1a0f06;
  --text-2: #5a4226;
  --text-3: #8a7351;
  --text-on-dark: #f5ecd9;
  --text-on-dark-2: #b8a78a;

  /* accents - amber / copper glow */
  --ember: #f59e0b;
  --ember-2: #fcd34d;
  --ember-3: #fef3c7;
  --ember-deep: #b45309;

  /* status */
  --plus: #16a34a;
  --minus: #b54442;
  --gold: #c9a25a;

  /* type */
  --serif: 'Newsreader', 'Times New Roman', Georgia, serif;
  --sans: 'Geist', ui-sans-serif, system-ui, -apple-system, sans-serif;
  --mono: 'Geist Mono', ui-monospace, SFMono-Regular, monospace;

  /* radii */
  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 14px;
  --r-xl: 22px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ─────────────────────────────────────────── shell */
.shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 280px 1fr;
  background: var(--bg);
}

.rail {
  position: sticky;
  top: 0;
  height: 100vh;
  background: var(--ink);
  color: var(--text-on-dark);
  padding: 28px 22px;
  display: flex;
  flex-direction: column;
  gap: 28px;
  overflow-y: auto;
}

.rail-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.rail-brand .mark {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background:
    radial-gradient(circle at 30% 30%, var(--ember) 0%, rgba(245,158,11,0) 60%),
    var(--ink-3);
  border: 1px solid rgba(245,158,11,0.35);
}
.rail-brand .wordmark {
  font-family: var(--serif);
  font-size: 19px;
  letter-spacing: -0.01em;
  line-height: 1;
}
.rail-brand .wordmark em {
  font-style: italic;
  font-weight: 400;
  color: var(--ember);
}

.rail-eyebrow {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-on-dark-2);
  margin: 12px 0 6px;
}

.rail-nav {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.rail-link {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--text-on-dark);
  text-align: left;
  padding: 9px 12px;
  border-radius: 8px;
  font-family: var(--sans);
  font-size: 13.5px;
  letter-spacing: -0.005em;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  opacity: 0.78;
  transition: background 120ms, opacity 120ms;
}
.rail-link:hover { background: rgba(255,255,255,0.04); opacity: 1; }
.rail-link.active {
  background: rgba(245,158,11,0.08);
  border: 1px solid rgba(245,158,11,0.28);
  padding: 8px 11px;
  opacity: 1;
}
.rail-link .num {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-on-dark-2);
}
.rail-link.active .num { color: var(--ember); }

.rail-foot {
  margin-top: auto;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--text-on-dark-2);
  line-height: 1.6;
  text-transform: uppercase;
}
.rail-foot .lozenge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border: 1px solid rgba(245,158,11,0.28);
  border-radius: 999px;
  color: var(--ember);
  margin-bottom: 10px;
}
.rail-foot .lozenge .dot {
  width: 6px; height: 6px; border-radius: 999px; background: var(--ember);
  box-shadow: 0 0 0 3px rgba(245,158,11,0.22);
}

/* main work area */
.workspace {
  padding: 26px 32px 80px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.work-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
.work-head .tag {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-3);
}
.work-head h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 32px;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 6px 0 0;
}
.work-head h1 em { font-style: italic; color: var(--text-2); }
.work-head .blurb {
  max-width: 360px;
  font-size: 12.5px;
  color: var(--text-2);
  line-height: 1.55;
  text-align: right;
}

/* dual frame layout */
.stage {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 412px;
  gap: 28px;
  align-items: start;
}

/* desktop frame */
.frame-desk {
  background: var(--paper-2);
  border-radius: 12px;
  border: 1px solid var(--line);
  overflow: hidden;
  box-shadow: 0 1px 0 rgba(26,15,6,0.02), 0 30px 60px -30px rgba(26,15,6,0.18);
}
.frame-desk .desk-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: #f3ede0;
  border-bottom: 1px solid var(--line);
}
.frame-desk .desk-bar .dots {
  display: flex; gap: 6px;
}
.frame-desk .desk-bar .dots i {
  width: 10px; height: 10px; border-radius: 999px; background: #d8cdb5; display: block;
}
.frame-desk .desk-bar .url {
  flex: 1;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 4px 10px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-3);
  display: flex;
  align-items: center;
  gap: 6px;
}
.frame-desk .desk-bar .url .lock {
  width: 10px; height: 10px; border-radius: 2px; background: var(--text-3); opacity: 0.5;
}
.frame-desk .desk-body {
  height: 1080px;
  overflow: auto;
  background: var(--paper);
  scrollbar-width: thin;
}

/* mobile frame */
.frame-mob {
  width: 412px;
  position: sticky;
  top: 26px;
}
.frame-mob .phone {
  width: 390px;
  height: 800px;
  margin: 0 auto;
  background: var(--paper);
  border-radius: 44px;
  border: 8px solid var(--ink);
  overflow: hidden;
  position: relative;
  box-shadow: 0 30px 60px -30px rgba(26,15,6,0.32);
}
.frame-mob .status {
  position: absolute; inset: 0 0 auto 0; height: 44px; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 28px 0;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  pointer-events: none;
}
.frame-mob .status.dark { color: var(--text-on-dark); }
.frame-mob .notch {
  position: absolute; top: 8px; left: 50%; transform: translateX(-50%);
  width: 110px; height: 28px; background: var(--ink); border-radius: 999px; z-index: 25;
}
.frame-mob .mob-body {
  position: absolute; inset: 44px 0 0 0;
  overflow-y: auto;
  scrollbar-width: thin;
}
.frame-mob .home-ind {
  position: absolute; bottom: 8px; left: 50%; transform: translateX(-50%);
  width: 134px; height: 5px; background: var(--ink); border-radius: 999px; opacity: 0.7; z-index: 25;
}
.frame-mob .label {
  position: absolute; top: -22px; left: 50%; transform: translateX(-50%);
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--text-3);
}
.frame-desk-wrap {
  position: relative;
}
.frame-desk-wrap .label {
  position: absolute; top: -22px; left: 0;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--text-3);
}

/* placeholder system (no copyrighted product art) */
.ph {
  position: relative;
  background:
    repeating-linear-gradient(135deg,
      rgba(26,15,6,0.05) 0,
      rgba(26,15,6,0.05) 1px,
      transparent 1px,
      transparent 8px),
    linear-gradient(180deg, #efe7d4 0%, #e0d5b8 100%);
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--line);
}
.ph.dark {
  background:
    repeating-linear-gradient(135deg,
      rgba(255,255,255,0.04) 0,
      rgba(255,255,255,0.04) 1px,
      transparent 1px,
      transparent 8px),
    linear-gradient(180deg, #2a1c10 0%, #1a0f06 100%);
  border-color: rgba(255,255,255,0.08);
}
.ph-label {
  position: absolute; left: 10px; bottom: 8px;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
}
.ph.dark .ph-label { color: var(--text-on-dark-2); }
.ph-corner {
  position: absolute; right: 10px; top: 10px;
  width: 18px; height: 18px;
  border-top: 1px solid rgba(26,15,6,0.25);
  border-right: 1px solid rgba(26,15,6,0.25);
}
.ph.dark .ph-corner {
  border-top-color: rgba(255,255,255,0.15);
  border-right-color: rgba(255,255,255,0.15);
}

/* shared atoms - used by templates */
.eyebrow {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-3);
}
.kicker-ice {
  color: var(--ember-deep);
}
h1, h2, h3, h4 { font-family: var(--serif); font-weight: 400; letter-spacing: -0.018em; color: var(--text); }
h1 { font-size: 56px; line-height: 1.02; }
h2 { font-size: 36px; line-height: 1.08; }
h3 { font-size: 24px; line-height: 1.18; }
h4 { font-size: 18px; line-height: 1.25; }
p { line-height: 1.6; color: var(--text-2); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 18px;
  border-radius: 999px;
  font-family: var(--sans);
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: -0.005em;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 120ms, background 120ms;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { background: var(--ink-3); }
.btn-ember {
  background: linear-gradient(135deg, var(--ember-2) 0%, var(--ember) 100%);
  color: var(--ink);
  transition: background 220ms ease, box-shadow 220ms ease, transform 120ms ease;
}
.btn-ember:hover {
  background: linear-gradient(135deg, var(--ember) 0%, var(--ember-deep) 100%);
  color: var(--paper);
  box-shadow: 0 6px 22px -8px rgba(180,83,9,0.45);
}
.btn-ghost { background: transparent; color: var(--text); border-color: var(--line); }
.btn-ghost:hover { background: var(--hush); }
.btn-dark-ghost { background: transparent; color: var(--text-on-dark); border-color: rgba(255,255,255,0.18); }
.btn-arrow svg { width: 12px; height: 12px; }

.divider { height: 1px; background: var(--line); border: 0; margin: 0; }

/* utility */
.mono { font-family: var(--mono); }
.serif { font-family: var(--serif); }
.italic { font-style: italic; }

/* affiliate disclosure pill */
.disclose {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  padding: 4px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper-2);
}
.disclose .dot {
  width: 5px; height: 5px; border-radius: 999px; background: var(--ember-deep);
}

/* tags / chips */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 9px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-2);
  background: var(--hush);
  border-radius: 999px;
  border: 1px solid var(--line);
}
.chip.solid-dark { background: var(--ink); color: var(--text-on-dark); border-color: transparent; }
.chip.ember { background: rgba(245,158,11,0.16); color: var(--ember-deep); border-color: rgba(180,83,9,0.22); }

/* score arc */
.score {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}
.score-big {
  font-family: var(--serif);
  font-size: 44px;
  line-height: 1;
  font-weight: 400;
  letter-spacing: -0.03em;
  color: var(--ink);
}
.score-small {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
}

/* generic table style */
.tbl {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-family: var(--sans);
  font-size: 13px;
  color: var(--text);
}
.tbl th, .tbl td {
  text-align: left;
  padding: 14px 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.tbl th {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  font-weight: 500;
  background: var(--paper);
  position: sticky; top: 0;
}
.tbl td .product-name {
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.2;
  color: var(--text);
}
.tbl td .product-sub {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-top: 2px;
}
.tbl tr.best td { background: rgba(245,158,11,0.06); }

/* star (filled square aesthetic - no svg star slop) */
.stars {
  display: inline-flex; gap: 2px;
}
.stars i {
  width: 8px; height: 8px;
  background: var(--ink);
  display: block;
  transform: rotate(45deg);
}
.stars i.empty { background: transparent; border: 1px solid var(--line); }

/* FAQ */
.faq-item {
  border-bottom: 1px solid var(--line);
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  font-family: var(--serif);
  font-size: 20px;
  color: var(--text);
  letter-spacing: -0.012em;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .plus {
  width: 22px; height: 22px;
  border-radius: 999px; border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; color: var(--text-2); flex-shrink: 0;
  font-family: var(--sans);
  font-weight: 300;
}
.faq-item[open] summary .plus { background: var(--ink); color: var(--paper); border-color: transparent; }
.faq-item .faq-body {
  padding: 0 38px 24px 0;
  font-size: 14.5px;
  color: var(--text-2);
  line-height: 1.65;
}

/* hero gradient strip */
.cold-strip {
  height: 1px;
  background: linear-gradient(90deg,
    transparent 0%,
    var(--ember) 25%,
    var(--ember) 75%,
    transparent 100%);
  opacity: 0.55;
}

/* sticky mobile CTA bar */
.mob-sticky-cta {
  position: absolute;
  left: 12px; right: 12px;
  bottom: 24px;
  background: var(--ink);
  color: var(--paper);
  border-radius: 18px;
  padding: 12px 12px 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  box-shadow: 0 12px 30px -12px rgba(26,15,6,0.55);
  z-index: 30;
}
.mob-sticky-cta .price {
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1;
}
.mob-sticky-cta .label {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-on-dark-2);
}
.mob-sticky-cta .pill {
  background: linear-gradient(135deg, var(--ember-2) 0%, var(--ember) 100%);
  color: var(--ink);
  padding: 9px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
}

/* hide scrollbar but allow scroll */
.frame-desk .desk-body::-webkit-scrollbar,
.frame-mob .mob-body::-webkit-scrollbar { width: 6px; }
.frame-desk .desk-body::-webkit-scrollbar-thumb,
.frame-mob .mob-body::-webkit-scrollbar-thumb { background: rgba(26,15,6,0.18); border-radius: 999px; }