/* Hermis Labs homepage and data page. Same tokens as the app (frontend/src/styles.css): warm
   paper, ink text, one harbor-blue accent for actions, warm amber for small highlights. All
   text pairs WCAG AA or better. Abstract art is inline SVG stroked with these tokens. */
:root {
  --bg: #f6f4ef;
  --surface: #fdfcf9;
  --text: #17212b;
  --muted: #56606c;
  --border: #e2ddd3;
  --accent: #1e5b78;
  --on-accent: #fff;
  --accent-soft: #e6eef2;
  --warm: #9a5b1e;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --serif: "Iowan Old Style", "Source Serif Pro", Georgia, "Times New Roman", serif;
  --radius: 18px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f161c;
    --surface: #162029;
    --text: #e7ecef;
    --muted: #9da8b3;
    --border: #283541;
    --accent: #86bfdb;
    --on-accent: #0d1a22;
    --accent-soft: #1c2e3a;
    --warm: #e0a867;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--sans); line-height: 1.6; -webkit-font-smoothing: antialiased; }
h1, h2, h3 { font-family: var(--serif); font-weight: 400; letter-spacing: -0.01em; }
h2 { font-size: clamp(1.8rem, 3.6vw, 2.5rem); line-height: 1.15; margin: 0 0 10px; }
h3 { font-size: 1.15rem; margin: 0 0 6px; }
a { color: var(--accent); text-underline-offset: 3px; }
p { margin: 0 0 12px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.skip { position: absolute; left: -9999px; top: 8px; }
.skip:focus { left: 8px; z-index: 10; background: var(--surface); padding: 8px 12px; border: 1px solid var(--border); border-radius: 8px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.wrap { max-width: 1080px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
.muted { color: var(--muted); }
.small { font-size: 0.9rem; }
.section { padding-top: 96px; padding-bottom: 96px; }
.band { padding: 96px 0; background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { max-width: 640px; margin-bottom: 40px; }
.stack { display: grid; gap: 16px; align-content: start; }
.stack > * { margin: 0; }

/* Header */
.top { position: sticky; top: 0; z-index: 5; background: color-mix(in srgb, var(--bg) 85%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid color-mix(in srgb, var(--border) 70%, transparent); }
.top-inner { display: flex; align-items: center; gap: 20px; padding-top: 14px; padding-bottom: 14px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--serif); font-size: 1.25rem; color: var(--text); text-decoration: none; margin-right: auto; }
.mark { width: 22px; height: 22px; border-radius: 50%; background: radial-gradient(circle at 35% 35%, var(--accent-soft), var(--accent) 70%); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 15%, transparent); }
.top nav { display: flex; flex-wrap: wrap; gap: 4px 22px; align-items: center; }
.top nav a:not(.btn) { color: var(--muted); text-decoration: none; font-size: 0.95rem; }
.top nav a:not(.btn):hover { color: var(--text); }

/* Buttons and badges */
.btn { display: inline-block; text-decoration: none; color: var(--text); background: var(--surface); border: 1px solid var(--border); border-radius: 999px; padding: 10px 20px; font-weight: 500; transition: border-color 0.15s, transform 0.15s; }
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.btn.primary:hover { transform: translateY(-1px); }
.btn.ghost { background: transparent; }
.badge { display: inline-block; min-width: 64px; text-align: center; font-size: 0.78rem; letter-spacing: 0.02em; border: 1px solid var(--border); border-radius: 999px; padding: 2px 10px; color: var(--muted); }
.badge.live { border-color: var(--accent); color: var(--accent); }
.badge.soon { border-color: var(--warm); color: var(--warm); width: fit-content; }
.badge.beta { border-color: var(--accent); color: var(--accent); border-style: dashed; width: fit-content; }
.eyebrow { font-size: 0.75rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent); margin: 0; }
.lede { font-size: 1.2rem; color: var(--muted); max-width: 560px; }

/* Hero: copy on the left, abstract waveform contour + ripples on the right, over a dot grid. */
.hero { position: relative; overflow: hidden; padding: 72px 0 96px; background-image: radial-gradient(color-mix(in srgb, var(--accent) 16%, transparent) 1px, transparent 1.2px); background-size: 22px 22px; }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, var(--bg) 30%, color-mix(in srgb, var(--bg) 40%, transparent) 70%, var(--bg)); pointer-events: none; }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center; }
.hero h1 { font-size: clamp(2.5rem, 6vw, 4.4rem); line-height: 1.03; margin: 14px 0 20px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 0; }
.status-note { display: flex; gap: 10px; align-items: baseline; margin: 28px 0 0; font-size: 0.92rem; color: var(--muted); max-width: 520px; }
.status-note .dot { flex: none; width: 8px; height: 8px; border-radius: 50%; background: var(--warm); transform: translateY(-1px); }
.hero-art { position: relative; aspect-ratio: 4 / 3; }
.waves { position: absolute; inset: 0; width: 100%; height: 100%; stroke: var(--accent); }
.ripples { position: absolute; left: 50%; top: 50%; width: 0; height: 0; }
.ripples span, .ripples i { position: absolute; border-radius: 50%; transform: translate(-50%, -50%); }
.ripples span { border: 1px solid color-mix(in srgb, var(--warm) 55%, transparent); width: 120px; height: 120px; animation: ripple 5s ease-out infinite; }
.ripples span:nth-child(2) { animation-delay: -1.7s; }
.ripples span:nth-child(3) { animation-delay: -3.4s; }
.ripples i { width: 64px; height: 64px; background: radial-gradient(circle at 35% 30%, var(--surface), var(--accent) 75%); box-shadow: 0 10px 40px color-mix(in srgb, var(--accent) 35%, transparent); }

/* Session preview */
.split { display: grid; gap: 56px; grid-template-columns: 1fr 1.1fr; align-items: center; }
.ticks { list-style: none; padding: 0; display: grid; gap: 8px; }
.ticks li::before { content: ""; display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); margin-right: 12px; transform: translateY(-2px); }
.call { margin: 0; background: var(--bg); border: 1px solid var(--border); border-radius: 24px; padding: 20px; display: grid; gap: 16px; box-shadow: 0 30px 60px -30px color-mix(in srgb, var(--text) 30%, transparent); }
.preview-note { margin: 0; font-size: 0.78rem; text-align: center; color: var(--warm); border: 1px dashed var(--warm); border-radius: 999px; padding: 3px 10px; }
.call-top { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; }
.pill { font-size: 0.8rem; border: 1px solid var(--accent); color: var(--accent); border-radius: 999px; padding: 2px 10px; }
.timer { margin-left: auto; font-variant-numeric: tabular-nums; color: var(--muted); }
.voice { display: grid; justify-items: center; gap: 14px; padding: 8px 0; }
.orb { position: relative; width: 72px; height: 72px; border-radius: 50%; background: radial-gradient(circle at 35% 30%, var(--accent-soft), var(--accent)); }
.orb span { position: absolute; inset: -10px; border-radius: 50%; border: 1.5px solid var(--accent); opacity: 0.3; animation: ring 2.4s ease-out infinite; }
.wave { display: flex; align-items: center; gap: 4px; height: 30px; }
.wave i { display: block; width: 3px; height: 100%; border-radius: 2px; background: var(--accent); transform: scaleY(0.25); animation: wave 1.2s ease-in-out infinite; }
.wave i:nth-child(3n) { animation-delay: -0.3s; }
.wave i:nth-child(3n+1) { animation-delay: -0.7s; }
.wave i:nth-child(4n) { animation-delay: -0.5s; animation-duration: 0.9s; }
.wave i:nth-child(5n) { animation-delay: -0.1s; animation-duration: 1.5s; }
.captions { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.cap { padding: 12px 14px; border-radius: 16px; max-width: 90%; }
.cap.you { background: var(--surface); border: 1px solid var(--border); justify-self: end; border-bottom-right-radius: 4px; }
.cap.coach { background: var(--accent-soft); justify-self: start; border-bottom-left-radius: 4px; }
.who { display: block; font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); margin-bottom: 2px; }
.why { margin: 0; font-size: 0.9rem; color: var(--muted); border-left: 2px solid var(--warm); padding-left: 12px; }
.why-label { display: block; font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--warm); }

/* The practice loop: four nodes on one connecting line. */
.loop { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; position: relative; }
.loop::before { content: ""; position: absolute; top: 22px; left: 22px; right: 22px; height: 1px; background: repeating-linear-gradient(90deg, var(--accent) 0 6px, transparent 6px 12px); opacity: 0.5; }
.loop li { position: relative; }
.node { position: relative; display: grid; place-items: center; width: 44px; height: 44px; margin-bottom: 18px; border-radius: 50%; background: var(--bg); border: 1.5px solid var(--accent); color: var(--accent); font-family: var(--serif); font-size: 1.1rem; }
.loop li:last-child .node { background: var(--accent); color: var(--on-accent); }

/* Differentiators */
.diffs { display: grid; gap: 1px; grid-template-columns: repeat(3, 1fr); background: var(--border); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.diff { background: var(--surface); padding: 28px; display: grid; align-content: start; gap: 8px; }
.diff p { margin: 0; }
.diff .badge { justify-self: start; }
.glyph { width: 40px; height: 40px; fill: none; stroke: var(--accent); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 6px; }

/* Feedback demo */
.evidence { margin: 0; display: grid; grid-template-columns: 1fr 1.4fr; gap: 32px; align-items: center; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 36px; position: relative; overflow: hidden; }
.evidence::before { content: ""; position: absolute; right: -80px; top: -80px; width: 260px; height: 260px; border-radius: 50%; background: repeating-radial-gradient(circle, color-mix(in srgb, var(--accent) 14%, transparent) 0 1px, transparent 1px 14px); pointer-events: none; }
.evidence blockquote { margin: 0; font-family: var(--serif); font-size: clamp(1.5rem, 3vw, 2.1rem); line-height: 1.2; border-left: 3px solid var(--warm); padding-left: 18px; }
.evidence-rows { display: grid; gap: 14px; position: relative; }
.evidence-rows div { display: grid; grid-template-columns: 90px 1fr; gap: 12px; }
.evidence-rows span { font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); padding-top: 3px; }
.evidence-rows p { margin: 0; }
.evidence figcaption { grid-column: 1 / -1; margin-top: -8px; }

/* Trust */
.trust { display: grid; grid-template-columns: 1fr 1.4fr; gap: 48px; align-items: start; }
.trust-list { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 24px 32px; }
.trust-list li { padding-top: 14px; border-top: 1px solid var(--border); color: var(--muted); }
.trust-list strong { display: block; color: var(--text); font-weight: 600; margin-bottom: 2px; }

/* Status */
.status { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 14px 40px; }
.status li { display: flex; gap: 14px; align-items: baseline; }

/* FAQ */
.faq { display: grid; gap: 0; max-width: 760px; }
.faq details { border-bottom: 1px solid var(--border); padding: 18px 0; }
.faq summary { cursor: pointer; font-weight: 500; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent); font-size: 1.3rem; line-height: 1; }
.faq details[open] summary::after { content: "−"; }
.faq details[open] summary { margin-bottom: 10px; }
.faq p { margin: 0; }

/* Call to action */
.cta { position: relative; overflow: hidden; text-align: center; padding: 72px 24px; border-radius: 28px; background: var(--accent); color: var(--on-accent); }
.cta h2 { color: var(--on-accent); }
.cta p { opacity: 0.85; margin-bottom: 26px; }
.cta .btn.primary { background: var(--on-accent); color: var(--accent); border-color: var(--on-accent); }
.cta-art { position: absolute; inset: 0; width: 100%; height: 100%; stroke: var(--on-accent); opacity: 0.25; pointer-events: none; }
.cta > :not(svg) { position: relative; }

.footer { border-top: 1px solid var(--border); padding-top: 28px; padding-bottom: 48px; }
.footer p { margin: 0 0 6px; }
.brand-small { font-family: var(--serif); color: var(--text); }

/* Data page */
.doc { max-width: 780px; }
.doc h1 { font-size: clamp(2rem, 5vw, 3rem); margin: 10px 0 12px; }
.doc h2 { font-size: 1.5rem; margin: 40px 0 10px; }
.doc ul { padding-left: 20px; display: grid; gap: 8px; }
.table-wrap { overflow-x: auto; }
.doc table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
.doc th, .doc td { text-align: left; vertical-align: top; padding: 10px 12px 10px 0; border-bottom: 1px solid var(--border); }
.doc th { font-weight: 600; }

@keyframes wave { 0%, 100% { transform: scaleY(0.25); } 50% { transform: scaleY(1); } }
@keyframes ring { 0% { transform: scale(0.9); opacity: 0.45; } 100% { transform: scale(1.25); opacity: 0; } }
@keyframes ripple { 0% { width: 70px; height: 70px; opacity: 0.9; } 100% { width: 340px; height: 340px; opacity: 0; } }

@media (max-width: 900px) {
  .hero-grid, .split, .trust, .evidence { grid-template-columns: 1fr; }
  .hero-art { max-width: 520px; width: 100%; justify-self: center; }
  .loop { grid-template-columns: 1fr 1fr; }
  .loop::before { display: none; }
  .diffs { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .section, .band { padding-top: 64px; padding-bottom: 64px; }
  .top nav a:not(.btn) { display: none; }
  .loop, .diffs, .trust-list, .status { grid-template-columns: 1fr; }
  .evidence { padding: 24px; }
  .evidence-rows div { grid-template-columns: 1fr; gap: 2px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .wave i, .orb span, .ripples span { animation: none; }
  .wave i { transform: scaleY(0.6); }
  .ripples span { width: 180px; height: 180px; opacity: 0.4; }
  .ripples span:nth-child(2) { width: 260px; height: 260px; opacity: 0.25; }
  .ripples span:nth-child(3) { width: 340px; height: 340px; opacity: 0.12; }
}