/* Layout: single calm column (max ~68ch) with occasional two-column bands; one drawn line motif, tight → open. */
:root {
  --bg: #FFF4D7;          /* VAH cream */
  --surface: #F3E7C6;     /* slightly deeper cream band */
  --khaki: #CCC3AC;       /* VAH warm khaki, rules + placeholders */
  --ink: #33312B;         /* VAH warm ink, body text */
  --strong: #14130F;      /* headings */
  --muted: #6B6556;
  --accent: #A8741F;      /* turmeric ochre, darkened for text contrast */
  --accent-soft: #C08A2E;
  --on-accent: #FFF8E6;
  --font-display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Source Serif 4", Georgia, "Times New Roman", serif;
  --font-ui: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --step--1: 0.875rem;
  --step-0: 1.125rem;
  --step-1: 1.35rem;
  --step-2: 1.75rem;
  --step-3: clamp(2.1rem, 1.6rem + 2.4vw, 3.4rem);
  --measure: 66ch;
  --wide: 1080px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #23211C; --surface: #2C2A24; --khaki: #4A463C; --ink: #E9E1CC; --strong: #FFF4D7;
    --muted: #B3AA94; --accent: #D9A546; --accent-soft: #C08A2E; --on-accent: #1E1B14; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #23211C; --surface: #2C2A24; --khaki: #4A463C; --ink: #E9E1CC; --strong: #FFF4D7;
  --muted: #B3AA94; --accent: #D9A546; --accent-soft: #C08A2E; --on-accent: #1E1B14; color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.65;
}
img { max-width: 100%; display: block; }
a { color: var(--strong); text-decoration-color: var(--accent-soft); text-underline-offset: 3px; text-decoration-thickness: 1.5px; }
a:hover { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }

.wrap {
  width: 100%;
  max-width: var(--wide);
  margin-inline: auto;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(20px, env(safe-area-inset-right, 0px));
}
.prose { max-width: var(--measure); }
.prose p, .prose ul { margin-block: 0 1.1em; }

h1, h2, h3 { font-family: var(--font-display); color: var(--strong); text-wrap: balance; letter-spacing: -0.01em; }
h1 { font-size: var(--step-3); line-height: 1.08; font-weight: 600; margin: 0 0 0.5em; }
h2 { font-size: var(--step-2); line-height: 1.2; font-weight: 600; margin: 0 0 0.6em; }
h3 { font-size: var(--step-1); line-height: 1.3; font-weight: 600; margin: 0 0 0.35em; }
.eyebrow {
  font-family: var(--font-ui); font-size: var(--step--1); text-transform: uppercase;
  letter-spacing: 0.12em; color: var(--accent); font-weight: 600; margin: 0 0 0.9em;
}
.lede { font-size: var(--step-1); line-height: 1.55; max-width: 34em; }

/* Header */
.site-header { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 5; background: var(--bg); border-bottom: 1px solid var(--khaki); }
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 10; background: var(--bg); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 14px; flex-wrap: wrap; }
.brand { font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; text-decoration: none; color: var(--strong); letter-spacing: 0.01em; }
.nav { display: flex; gap: 22px; flex-wrap: wrap; align-items: center; font-family: var(--font-ui); font-size: 0.95rem; }
.nav a { text-decoration: none; color: var(--ink); }
.nav a[aria-current="page"] { color: var(--strong); text-decoration: underline; text-decoration-color: var(--accent-soft); }

/* Buttons */
.btn {
  display: inline-block; font-family: var(--font-ui); font-weight: 600; font-size: 1rem;
  padding: 0.8em 1.3em; border: 1.5px solid var(--strong); border-radius: 999px;
  text-decoration: none; color: var(--strong); background: transparent; transition: background .2s, color .2s;
}
.btn:hover { background: var(--strong); color: var(--bg); }
.btn-primary { background: var(--strong); color: var(--bg); }
.btn-primary:hover { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 1.6em; }
.nav .btn { padding: 0.45em 1em; font-size: 0.9rem; }

/* Sections */
section { padding-block: clamp(56px, 8vw, 104px); }
.band { background: var(--surface); }
.rule { border: 0; border-top: 1px solid var(--khaki); margin: 0; }

/* Hero */
.hero { padding-block: clamp(48px, 7vw, 96px) clamp(32px, 5vw, 56px); }
.hero-line { width: 100%; height: auto; margin-top: clamp(28px, 4vw, 48px); color: var(--strong); }
.hero-line .tight { stroke: var(--strong); }
.hero-line .open { stroke: var(--accent-soft); }
.line-labels { display: flex; justify-content: space-between; font-family: var(--font-ui); font-size: var(--step--1); color: var(--muted); letter-spacing: 0.08em; text-transform: uppercase; margin-top: 6px; }
@media (prefers-reduced-motion: no-preference) {
  .hero-line path { stroke-dasharray: 1; stroke-dashoffset: 0; animation: draw 2.6s ease-out both; }
  @keyframes draw { from { stroke-dashoffset: 1; } to { stroke-dashoffset: 0; } }
}

/* Two-column */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 64px); align-items: start; }
.split > * { min-width: 0; }
@media (max-width: 760px) { .split { grid-template-columns: 1fr; } }

/* Comparison */
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border-top: 1px solid var(--khaki); margin-top: 1.5em; }
.compare > div { padding: 22px 0; border-bottom: 1px solid var(--khaki); min-width: 0; }
.compare > div:nth-child(odd) { padding-right: 24px; }
.compare > div:nth-child(even) { padding-left: 24px; border-left: 1px solid var(--khaki); }
.compare .k { font-family: var(--font-ui); font-size: var(--step--1); text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); display: block; margin-bottom: 4px; }
.compare .head { font-family: var(--font-display); font-weight: 600; font-size: var(--step-1); color: var(--strong); }
.compare .head.open { color: var(--accent); }
@media (max-width: 560px) {
  .compare > div:nth-child(odd) { padding-right: 12px; }
  .compare > div:nth-child(even) { padding-left: 12px; }
  .compare { font-size: 1rem; }
}

/* Layers list */
.layers { list-style: none; padding: 0; margin: 2em 0 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 36px 56px; max-width: 900px; }
@media (max-width: 640px) { .layers { grid-template-columns: 1fr; } }
.layers li { border-top: 1.5px solid var(--strong); padding-top: 16px; min-width: 0; }
.layers .pali { font-family: var(--font-ui); font-size: var(--step--1); color: var(--muted); letter-spacing: 0.04em; }
.layers p { margin: 0.4em 0 0; font-size: 1.02rem; }

/* Steps (a real sequence) */
.steps { list-style: none; counter-reset: s; padding: 0; margin: 1.5em 0 0; display: grid; gap: 28px; max-width: var(--measure); }
.steps li { counter-increment: s; display: grid; grid-template-columns: 2.6rem 1fr; gap: 14px; }
.steps li::before { content: counter(s); font-family: var(--font-display); font-weight: 600; font-size: 1.1rem; color: var(--accent); border: 1.5px solid var(--accent-soft); border-radius: 50%; width: 2.2rem; height: 2.2rem; display: grid; place-items: center; }
.steps li > div { min-width: 0; }
.steps h3 { margin-top: 0.15em; }
.steps p { margin: 0.2em 0 0; }

/* Photo placeholder */
.photo { aspect-ratio: 4 / 5; max-width: 100%; background: var(--surface); border: 1px dashed var(--khaki); display: grid; place-items: center; text-align: center; padding: 20px; color: var(--muted); font-family: var(--font-ui); font-size: var(--step--1); letter-spacing: 0.06em; text-transform: uppercase; }
.band .photo { background: var(--bg); }
.photo.wide { aspect-ratio: 16 / 9; }

/* Credentials */
.creds { list-style: none; padding: 0; margin: 1.2em 0 0; display: grid; gap: 10px; font-size: 1rem; }
.creds li { padding-left: 18px; position: relative; }
.creds li::before { content: ""; position: absolute; left: 0; top: 0.72em; width: 7px; height: 7px; border-radius: 50%; background: var(--accent-soft); }

.note { font-size: 0.98rem; color: var(--muted); border-left: 2px solid var(--accent-soft); padding-left: 16px; max-width: var(--measure); }

/* FAQ */
.faq { max-width: var(--measure); margin-top: 1.5em; border-top: 1px solid var(--khaki); }
.faq details { border-bottom: 1px solid var(--khaki); padding: 16px 0; }
.faq summary { font-family: var(--font-display); font-weight: 600; color: var(--strong); cursor: pointer; font-size: 1.08rem; }
.faq details p { margin: 0.7em 0 0; }

/* CTA + footer */
.cta { text-align: left; }
.site-footer { border-top: 1px solid var(--khaki); padding-block: 36px 48px; font-family: var(--font-ui); font-size: 0.92rem; color: var(--muted); }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.site-footer a { color: var(--ink); }

/* Hero drawing: one wide animation, gripping → open */
.flow-canvas { display: block; width: 100%; max-width: 100%; aspect-ratio: 1000 / 380; margin-top: clamp(28px, 4vw, 48px); }
@media (max-width: 560px) { .flow-canvas { aspect-ratio: 4 / 3; } }