/* Landingpage – Farben nur als Tokens, Dark-Mode dreifach gepflegt (siehe CLAUDE.md). */
:root {
  --bg: #f3f6f5;
  --bg-alt: #e8efed;
  --card: #ffffff;
  --text: #17302c;
  --muted: #5d716d;
  --line: #dde6e3;
  --primary: #2a8c80;
  --primary-strong: #1f6c63;
  --primary-ink: #ffffff;
  --primary-soft: #e0f2ef;
  --accent: #d98a2b;
  --accent-soft: #fbefdf;
  --danger: #b6403a;
  --danger-soft: #fbe9e7;
  --nerve: #e0a526;
  --silhouette: #cfe0dc;
  --spine: #8fb3ac;
  --fig: #1f5f57;
  --fig-far: #9cc5be;
  --fig-head: #ffffff;
  --mat: #c9e3de;
  --prop: #a68a6d;
  --shadow: 0 1px 2px rgba(0, 0, 0, .05), 0 8px 28px rgba(23, 48, 44, .08);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1615;
    --bg-alt: #131d1b;
    --card: #182321;
    --text: #e4efec;
    --muted: #93a8a3;
    --line: #2a3835;
    --primary: #3fb3a3;
    --primary-strong: #5cc9b9;
    --primary-ink: #06201c;
    --primary-soft: #183a35;
    --accent: #e9a14a;
    --accent-soft: #3a2b18;
    --danger: #f08a82;
    --danger-soft: #3a1f1d;
    --nerve: #f2c14e;
    --silhouette: #22322f;
    --spine: #4f6f69;
    --fig: #8fe0d3;
    --fig-far: #3c6c64;
    --fig-head: #182321;
    --mat: #26413c;
    --prop: #9c826a;
    --shadow: none;
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #0f1615;
  --bg-alt: #131d1b;
  --card: #182321;
  --text: #e4efec;
  --muted: #93a8a3;
  --line: #2a3835;
  --primary: #3fb3a3;
  --primary-strong: #5cc9b9;
  --primary-ink: #06201c;
  --primary-soft: #183a35;
  --accent: #e9a14a;
  --accent-soft: #3a2b18;
  --danger: #f08a82;
  --danger-soft: #3a1f1d;
  --nerve: #f2c14e;
  --silhouette: #22322f;
  --spine: #4f6f69;
  --fig: #8fe0d3;
  --fig-far: #3c6c64;
  --fig-head: #182321;
  --mat: #26413c;
  --prop: #9c826a;
  --shadow: none;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary-strong); }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2rem, 5.5vw, 3.3rem); font-weight: 800; }
h2 { font-size: clamp(1.55rem, 3.6vw, 2.2rem); font-weight: 750; }
h3 { font-size: 1.1rem; font-weight: 700; }
p { margin: 0 0 1em; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 16px; }
section { padding: 72px 0; }
section.alt { background: var(--bg-alt); }
.eyebrow {
  display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; color: var(--primary-strong); margin-bottom: .6em;
}
.lead { font-size: 1.15rem; color: var(--muted); max-width: 62ch; }
.muted { color: var(--muted); }

/* ---------- Navigation ---------- */
.topbar {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.topbar .wrap { display: flex; align-items: center; gap: 16px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; color: var(--text); text-decoration: none; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 9px; background: var(--primary);
  display: grid; place-items: center; color: var(--primary-ink);
}
.topbar nav { margin-left: auto; display: flex; gap: 20px; align-items: center; }
.topbar nav a:not(.btn) { color: var(--muted); text-decoration: none; font-size: .95rem; }
.topbar nav a:not(.btn):hover { color: var(--text); }
@media (max-width: 760px) { .topbar nav a:not(.btn) { display: none; } }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px; justify-content: center;
  padding: 12px 22px; border-radius: 999px; font-weight: 700; text-decoration: none;
  border: 2px solid transparent; transition: transform .15s, background .15s;
  font-size: 1rem; cursor: pointer;
}
.btn:active { transform: scale(.98); }
.btn.primary { background: var(--primary); color: var(--primary-ink); }
.btn.primary:hover { background: var(--primary-strong); }
.btn.ghost { border-color: var(--line); color: var(--text); background: var(--card); }
.btn.ghost:hover { border-color: var(--primary); }
.btn.small { padding: 8px 16px; font-size: .9rem; }
.btn.big { padding: 15px 28px; font-size: 1.08rem; }

/* ---------- Hero ---------- */
.hero { padding: 56px 0 72px; }
.hero .wrap { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
@media (max-width: 860px) { .hero .wrap { grid-template-columns: 1fr; gap: 32px; } }
.hero h1 .hl { color: var(--primary); }
.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; margin: 28px 0 20px; }
.trust { display: flex; gap: 18px; flex-wrap: wrap; font-size: .92rem; color: var(--muted); padding: 0; margin: 0; list-style: none; }
.trust li::before { content: "✓ "; color: var(--primary); font-weight: 800; }

.hero-card {
  background: var(--card); border: 1px solid var(--line); border-radius: 24px;
  box-shadow: var(--shadow); padding: 18px;
}
.hero-card .figure { width: 100%; display: block; border-radius: 14px; background: var(--primary-soft); }
.hero-card-meta { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; padding: 14px 6px 4px; }
.hero-card-meta strong { font-size: 1.05rem; }
.timer-pill {
  font-variant-numeric: tabular-nums; font-weight: 800; color: var(--primary-strong);
  background: var(--primary-soft); padding: 4px 12px; border-radius: 999px; font-size: .95rem;
}
.progress { height: 6px; background: var(--line); border-radius: 99px; overflow: hidden; margin: 10px 6px 4px; }
.progress span { display: block; height: 100%; width: 0; background: var(--primary); border-radius: 99px; }

/* ---------- Strichfigur (wie in der App) ---------- */
.fig-floor { stroke: var(--line); stroke-width: 1.5; }
.fig-mat { fill: var(--mat); }
.fig-prop { fill: none; stroke: var(--prop); stroke-width: 5; stroke-linecap: round; stroke-linejoin: round; }
.fig-limb, .fig-torso { fill: none; stroke-linecap: round; stroke-linejoin: round; }
.fig-limb { stroke-width: 8; }
.fig-near { stroke: var(--fig); }
.fig-far { stroke: var(--fig-far); }
.fig-torso { stroke: var(--fig); stroke-width: 12; }
.fig-head { fill: var(--fig-head); stroke: var(--fig); stroke-width: 5; }

/* ---------- Nerv-Erklärung ---------- */
.split { display: grid; grid-template-columns: .85fr 1.15fr; gap: 48px; align-items: center; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; gap: 28px; } }
.nerve-svg { width: 100%; max-width: 420px; display: block; margin: 0 auto; }
.nerve-svg .body { fill: var(--silhouette); }
.nerve-svg .arm { stroke: var(--silhouette); stroke-width: 17; stroke-linecap: round; fill: none; }
.nerve-svg .vert { fill: var(--spine); }
.nerve-svg .vert.hot { fill: var(--nerve); }
.nerve-svg .nerve { fill: none; stroke: var(--nerve); stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; }
.nerve-svg .pulse { fill: none; stroke: var(--card); stroke-width: 4; stroke-linecap: round; stroke-dasharray: 6 60; animation: flow 3.2s linear infinite; opacity: .85; }
.nerve-svg .lbl { fill: var(--text); font: 600 11px system-ui, sans-serif; }
.nerve-svg .lbl-sub { fill: var(--muted); font: 10px system-ui, sans-serif; }
.nerve-svg .lead-line { stroke: var(--muted); stroke-width: 1; stroke-dasharray: 2 3; fill: none; }
.nerve-svg .dot { fill: var(--nerve); }
@keyframes flow { to { stroke-dashoffset: -66; } }
@media (prefers-reduced-motion: reduce) { .nerve-svg .pulse { animation: none; display: none; } }

.facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 24px; }
@media (max-width: 600px) { .facts { grid-template-columns: 1fr; } }
.fact { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 16px; }
.fact b { display: block; font-size: 1.5rem; color: var(--primary-strong); line-height: 1.1; margin-bottom: 4px; }
.fact span { font-size: .9rem; color: var(--muted); }

/* ---------- Karten-Raster ---------- */
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); margin-top: 32px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: 18px;
  padding: 22px; box-shadow: var(--shadow);
}
.card p { margin: 0; color: var(--muted); font-size: .97rem; }
.card .ico {
  width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center;
  background: var(--primary-soft); color: var(--primary-strong); margin-bottom: 14px;
}
.card .ico svg { width: 22px; height: 22px; }
.card.warm .ico { background: var(--accent-soft); color: var(--accent); }

.symptoms { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 28px; }
@media (max-width: 700px) { .symptoms { grid-template-columns: 1fr; } }
.symptoms ul { margin: 0; padding-left: 1.2em; color: var(--muted); }
.symptoms li { margin: .35em 0; }
.symptoms li b { color: var(--text); }

/* ---------- Übungs-Vorschau ---------- */
.demo { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: start; margin-top: 32px; }
@media (max-width: 820px) { .demo { grid-template-columns: 1fr; } }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.chip {
  border: 1px solid var(--line); background: var(--card); color: var(--text);
  border-radius: 999px; padding: 7px 14px; font: inherit; font-size: .9rem; cursor: pointer;
}
.chip[aria-pressed="true"] { background: var(--primary); color: var(--primary-ink); border-color: var(--primary); }
.demo-stage { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 14px; box-shadow: var(--shadow); }
.demo-stage .figure { width: 100%; display: block; background: var(--primary-soft); border-radius: 12px; }
.demo-text .cat { font-size: .78rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--accent); }
.demo-text h3 { font-size: 1.35rem; margin-top: .3em; }
.demo-text ol { padding-left: 1.3em; color: var(--muted); }
.demo-text ol li { margin: .3em 0; }
.tip { background: var(--primary-soft); border-radius: 12px; padding: 12px 14px; font-size: .95rem; }
.caution { background: var(--accent-soft); border-radius: 12px; padding: 12px 14px; font-size: .95rem; margin-top: 10px; }

/* ---------- Schritte ---------- */
.steps { counter-reset: s; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-top: 32px; padding: 0; list-style: none; }
.steps li { counter-increment: s; background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 22px; }
.steps li::before {
  content: counter(s); display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%;
  background: var(--primary); color: var(--primary-ink); font-weight: 800; margin-bottom: 12px;
}
.steps p { margin: 0; color: var(--muted); font-size: .97rem; }

/* ---------- Warnzeichen ---------- */
.redflags {
  background: var(--danger-soft); border: 1px solid color-mix(in srgb, var(--danger) 35%, transparent);
  border-radius: 20px; padding: 26px; display: grid; grid-template-columns: auto 1fr; gap: 18px;
}
@media (max-width: 600px) { .redflags { grid-template-columns: 1fr; } }
.redflags .sign { width: 48px; height: 48px; border-radius: 14px; background: var(--danger); color: var(--card); display: grid; place-items: center; font-weight: 900; font-size: 1.5rem; }
.redflags h2 { color: var(--danger); font-size: 1.4rem; }
.redflags ul { margin: 0 0 .8em; padding-left: 1.2em; }
.redflags li { margin: .3em 0; }

/* ---------- FAQ ---------- */
.faq { max-width: 760px; margin-top: 28px; }
.faq details { background: var(--card); border: 1px solid var(--line); border-radius: 14px; margin-bottom: 10px; }
.faq summary { cursor: pointer; padding: 16px 18px; font-weight: 700; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--primary); font-size: 1.3rem; line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { padding: 0 18px 16px; margin: 0; color: var(--muted); }

/* ---------- CTA & Footer ---------- */
.cta-band { text-align: center; }
.cta-band .lead { margin: 0 auto 26px; }
footer { border-top: 1px solid var(--line); padding: 32px 0 48px; font-size: .88rem; color: var(--muted); }
footer .wrap { display: grid; gap: 12px; }
footer nav { display: flex; gap: 18px; flex-wrap: wrap; }
footer a { color: var(--muted); }
.grid.three { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.hero .wrap > *, .split > *, .demo > * { min-width: 0; }

/* ---------- Rechtliche Seiten ---------- */
.legal { padding: 48px 0 72px; }
.legal .wrap { max-width: 760px; }
.legal h1 { font-size: clamp(1.9rem, 4.5vw, 2.5rem); }
.legal h2 { font-size: 1.2rem; margin-top: 2em; }
.legal p, .legal li { color: var(--text); }
.legal ul { padding-left: 1.2em; }
.legal-summary { background: var(--primary-soft); border-radius: 14px; padding: 16px 18px; margin: 8px 0 8px; }