/* 12 Mile Habit — track-dark brand (palette: track/dark from the app) */
:root {
  --bg: #0A0A09; --surface: #15140F; --surface-alt: #1E1D17;
  --ink: #FAFAF7; --ink-soft: #A8A8A2; --ink-muted: #5C5B55;
  --line: rgba(250,250,247,0.10); --accent: #D9F23C; --accent-ink: #0A0A09;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  background: var(--bg); color: var(--ink);
  font: 17px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 640px; margin: 0 auto; padding: 0 24px 96px; }
.mark {
  font-family: "Instrument Serif", "Times New Roman", Georgia, serif;
  font-style: italic; color: var(--accent); text-decoration: none; display: inline-block;
}
header.site { padding: 28px 0; display: flex; align-items: baseline; justify-content: space-between; }
header.site .mark { font-size: 34px; }
header.site nav a { color: var(--ink-soft); text-decoration: none; font-size: 15px; margin-left: 18px; }
header.site nav a:hover { color: var(--ink); }
.hero-mark { font-size: 128px; line-height: 1; margin: 48px 0 8px; }
h1 { font-size: 44px; line-height: 1.1; letter-spacing: -0.02em; margin: 16px 0 8px; }
h1 .soft { color: var(--ink-soft); }
.lede { color: var(--ink-soft); font-size: 19px; margin: 16px 0 32px; }
h2 { font-size: 24px; letter-spacing: -0.01em; margin: 48px 0 12px; }
p { margin: 12px 0; color: var(--ink-soft); }
p strong, li strong { color: var(--ink); }
ul.features { list-style: none; margin: 24px 0; }
ul.features li { padding: 10px 0 10px 26px; position: relative; color: var(--ink-soft); }
ul.features li::before { content: "●"; color: var(--accent); position: absolute; left: 0; font-size: 11px; top: 17px; }
.cta {
  display: inline-block; background: var(--accent); color: var(--accent-ink);
  font-weight: 600; font-size: 18px; padding: 16px 32px; border-radius: 999px;
  text-decoration: none; margin: 16px 0;
}
.quiet { color: var(--ink-muted); font-size: 14px; }
.faq { border-top: 0.5px solid var(--line); }
.faq details { border-bottom: 0.5px solid var(--line); padding: 4px 0; }
.faq summary {
  cursor: pointer; padding: 16px 0; font-weight: 600; color: var(--ink);
  list-style: none; display: flex; justify-content: space-between; gap: 16px;
}
.faq summary::after { content: "+"; color: var(--accent); flex-shrink: 0; }
.faq details[open] summary::after { content: "–"; }
.faq .a { padding: 0 0 20px; color: var(--ink-soft); }
.faq .a p { margin: 10px 0; }
footer.site { border-top: 0.5px solid var(--line); margin-top: 72px; padding-top: 24px; }
footer.site p { font-size: 14px; color: var(--ink-muted); }
footer.site a { color: var(--ink-soft); text-decoration: none; }
a.mailto { color: var(--accent); text-decoration: none; }
code { background: var(--surface-alt); padding: 1px 6px; border-radius: 5px; font-size: 15px; }

/* ── Landing v3 — serif/mono identity, GSAP, mile-marker signature ── */
.landing { --serif: "Instrument Serif", "Times New Roman", Georgia, serif;
           --mono: ui-monospace, "SF Mono", Menlo, monospace; }
.landing .wrap { max-width: 1060px; }
.landing header.site {
  position: sticky; top: 0; z-index: 50; margin: 0 -24px; padding: 16px 24px;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  background: rgba(10,10,9,0.7); border-bottom: 0.5px solid transparent;
  transition: border-color 0.3s;
}
.landing header.site.scrolled { border-color: var(--line); }
.landing header.site nav a { font-family: var(--mono); font-size: 13px; letter-spacing: 0.04em; }

/* Signature: fixed roadside mile marker, counts with scroll */
.milepost {
  position: fixed; right: 22px; top: 50%; transform: translateY(-50%);
  z-index: 40; font-family: var(--mono); text-align: right;
  color: var(--ink-muted); font-size: 12px; letter-spacing: 0.12em;
  border-right: 2px solid var(--accent); padding-right: 12px;
  pointer-events: none; user-select: none;
}
.milepost b { display: block; color: var(--ink); font-size: 22px; font-weight: 500; }
@media (max-width: 900px) { .milepost { display: none; } }

/* Type system: serif italic display · mono utility · sans body */
.landing h1, .landing h2 {
  font-family: var(--serif); font-weight: 400; font-style: italic;
  letter-spacing: -0.01em;
}
.landing h1 { font-size: clamp(56px, 8.5vw, 118px); line-height: 0.98; margin: 0; }
.landing h1 .accent { color: var(--accent); }
.landing h2 { font-size: clamp(34px, 4.6vw, 54px); line-height: 1.05; margin: 0 0 14px; }
.eyebrow {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--ink-muted); margin-bottom: 18px;
}
.eyebrow i { font-style: normal; color: var(--accent); margin-right: 10px; }

.hero { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 56px;
        align-items: center; padding: 84px 0 64px; }
.hero .lede { font-size: clamp(17px, 1.9vw, 20px); max-width: 30em; margin: 26px 0 30px; }
.hero-cta { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.hero .fine { font-family: var(--mono); font-size: 12.5px; color: var(--ink-muted); margin-top: 14px; }
.phone {
  width: min(290px, 70vw); margin: 0 auto; border-radius: 44px; padding: 10px;
  background: #191916; border: 1px solid var(--line);
  box-shadow: 0 34px 90px rgba(0,0,0,0.6);
}
.phone img { width: 100%; border-radius: 34px; display: block; }
section.block { padding: 88px 0; border-top: 0.5px solid var(--line); }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 40px;
         border-top: 0.5px solid var(--line); }
.step { padding: 28px 28px 8px 0; border-right: 0.5px solid var(--line); }
.step:last-child { border-right: 0; }
.step .idx { font-family: var(--mono); color: var(--accent); font-size: 13px; letter-spacing: 0.15em; }
.step h3 { font-family: var(--serif); font-style: italic; font-weight: 400;
           font-size: 26px; margin: 12px 0 8px; }
.step p { font-size: 15.5px; margin: 0; }

.explorer { border: 0.5px solid var(--line); border-radius: 26px; padding: 34px;
            margin-top: 36px; background: var(--surface); }
.explorer-top { display: flex; justify-content: space-between; align-items: baseline;
                gap: 16px; flex-wrap: wrap; }
.explorer .week { font-family: var(--serif); font-style: italic; font-size: 38px; }
.chip { font-family: var(--mono); color: var(--accent); font-size: 12px;
        letter-spacing: 0.14em; text-transform: uppercase; }
.ribbon { display: flex; height: 46px; border-radius: 10px; overflow: hidden; margin: 24px 0 10px; }
.ribbon .seg { transition: flex-grow 0.5s cubic-bezier(.2,.8,.2,1); min-width: 3px; }
.seg.run { background: var(--accent); }
.seg.walk { background: #46453e; }
.seg.book { background: #23221d; }
.legend { display: flex; gap: 20px; font-family: var(--mono); font-size: 11.5px;
          letter-spacing: 0.06em; color: var(--ink-muted); margin-bottom: 22px; }
.legend i { display: inline-block; width: 9px; height: 9px; border-radius: 2px; margin-right: 7px; }
.explorer input[type=range] { width: 100%; accent-color: var(--accent); height: 34px; cursor: pointer; }
.explorer .meta { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
                  color: var(--ink-soft); font-size: 15px; }
.explorer .meta .mono { font-family: var(--mono); font-size: 13px; color: var(--ink-muted); }

.tones { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 30px; }
.tone-btn {
  background: transparent; color: var(--ink); border: 0.5px solid var(--line);
  border-radius: 999px; padding: 14px 26px; font-size: 15px; font-weight: 500;
  font-family: var(--mono); cursor: pointer;
  display: inline-flex; align-items: center; gap: 11px;
  transition: border-color 0.25s;
}
.tone-btn:hover, .tone-btn:focus-visible { border-color: var(--accent); }
.tone-btn .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.tone-btn.playing .dot { animation: pulse 0.45s ease infinite alternate; }
@keyframes pulse { to { transform: scale(1.8); } }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; margin-top: 8px; }
.landing ul.features li { font-size: 16px; }
.landing ul.features li::before { top: 18px; }
ul.features.negated li::before { content: "—"; color: var(--ink-muted); font-size: 15px; top: 10px; }

.split { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 56px; align-items: center; }

.price-card {
  border: 0.5px solid var(--line); border-left: 3px solid var(--accent);
  border-radius: 0 26px 26px 0; padding: 44px 48px; margin-top: 36px;
  background: var(--surface); display: flex; justify-content: space-between;
  align-items: center; gap: 32px; flex-wrap: wrap;
}
.price-card .amount { font-family: var(--serif); font-style: italic;
                      font-size: clamp(44px, 5vw, 64px); line-height: 1; }
.price-card .amount span { font-family: var(--mono); font-style: normal;
                           font-size: 14px; color: var(--ink-muted); display: block; margin-top: 10px; }
.price-card p { margin: 0; max-width: 24em; }

footer.site .sig { font-family: var(--serif); font-style: italic; font-size: 19px;
                   color: var(--ink-soft); }
.cta:focus-visible, a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 3px;
}
@media (max-width: 800px) {
  .hero, .split { grid-template-columns: 1fr; }
  .hero { padding-top: 44px; }
  .steps { grid-template-columns: 1fr; }
  .step { border-right: 0; border-bottom: 0.5px solid var(--line); padding-right: 0; }
  .two-col { grid-template-columns: 1fr; }
  .price-card { flex-direction: column; align-items: flex-start; }
}