/* BX Trainer – Farbwelt wie in der App: Petrol, Creme, Orange */
:root {
  --petrol: #12424F;
  --petrol-2: #1B5A6B;
  --cream: #F4EBDD;
  --orange: #E8743B;
  --bg: #FFFFFF;
  --bg-alt: #F4EBDD;
  --text: #16262B;
  --muted: #55666B;
  --card: #FFFFFF;
  --line: #E3D9C9;
  --accent: var(--petrol);
  --on-accent: #FFFFFF;
  --radius: 18px;
  --max: 1080px;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0E1E23;
    --bg-alt: #13282E;
    --text: #EEF2F2;
    --muted: #A9B8BB;
    --card: #17313A;
    --line: #24434C;
    --accent: #7BC2CF;
    --on-accent: #0E1E23;
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--accent); }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* Kopf */
.site-header {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text); font-weight: 700; }
.brand img { width: 32px; height: 32px; border-radius: 8px; }
.nav { display: flex; gap: 18px; font-size: 15px; }
.nav a { color: var(--muted); text-decoration: none; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--text); }

/* Startbereich */
.hero {
  background: var(--petrol);
  color: var(--cream);
  padding: 72px 0 0;
  overflow: hidden;
}
.hero .wrap { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 40px; align-items: end; }
.hero-text { padding-bottom: 72px; }
.hero h1 { font-size: clamp(36px, 6vw, 58px); line-height: 1.05; margin: 0 0 18px; letter-spacing: -0.02em; color: #fff; }
.hero h1 span { color: var(--orange); }
.hero p.lead { font-size: 20px; margin: 0 0 28px; color: var(--cream); max-width: 34em; }
.hero-shot { justify-self: center; width: min(320px, 80%); }
.badges { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }

.button {
  display: inline-block; padding: 13px 22px; border-radius: 999px;
  background: var(--orange); color: #fff; font-weight: 650; text-decoration: none;
  border: 0; font-size: 17px; cursor: pointer;
}
.button.secondary { background: transparent; color: var(--cream); box-shadow: inset 0 0 0 2px rgba(244,235,221,0.5); }
.button:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

.phone {
  border-radius: 34px;
  border: 8px solid #0B1517;
  background: #0B1517;
  box-shadow: 0 24px 60px rgba(0,0,0,0.35);
  overflow: hidden;
}
.hero .phone { border-bottom: 0; border-radius: 34px 34px 0 0; }

/* Abschnitte */
section { padding: 72px 0; }
section.alt { background: var(--bg-alt); }
h2 { font-size: clamp(28px, 4vw, 38px); line-height: 1.15; margin: 0 0 14px; letter-spacing: -0.01em; }
h3 { font-size: 19px; margin: 0 0 6px; }
.intro { color: var(--muted); max-width: 40em; margin: 0 0 36px; font-size: 18px; }

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.step { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.step::before {
  counter-increment: step; content: counter(step);
  display: grid; place-items: center; width: 34px; height: 34px; margin-bottom: 12px;
  border-radius: 50%; background: var(--accent); color: var(--on-accent); font-weight: 700;
}
.step p, .feature p { margin: 0; color: var(--muted); font-size: 16px; }

.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.feature .icon { font-size: 26px; line-height: 1; margin-bottom: 10px; }

.gallery { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; align-items: start; }
.gallery figure { margin: 0; }
.gallery figcaption { font-size: 14px; color: var(--muted); text-align: center; margin-top: 10px; }
.gallery .watch { border-radius: 40px; border: 8px solid #0B1517; overflow: hidden; background: #000; max-width: 190px; margin: 0 auto; }

.programs { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.program { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.program .tag { display: inline-block; font-size: 13px; font-weight: 700; color: var(--orange); letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 6px; }
.program ul { margin: 10px 0 0; padding-left: 20px; color: var(--muted); }

.note {
  border-left: 4px solid var(--orange); background: var(--card);
  padding: 18px 20px; border-radius: 0 var(--radius) var(--radius) 0; color: var(--muted);
}

/* Textseiten */
.page { padding: 56px 0 72px; }
.page .wrap { max-width: 760px; }
.page h1 { font-size: clamp(30px, 5vw, 42px); line-height: 1.1; margin: 0 0 8px; }
.page h2 { font-size: 22px; margin: 34px 0 8px; }
.page p, .page li { color: var(--text); }
.page .meta { color: var(--muted); margin-bottom: 28px; }

/* Formular */
form.feedback { display: grid; gap: 16px; margin-top: 24px; }
label { font-weight: 600; display: block; margin-bottom: 6px; }
input, textarea {
  width: 100%; font: inherit; color: var(--text); background: var(--card);
  border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px;
}
input:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }
textarea { min-height: 180px; resize: vertical; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.hint { font-size: 14px; color: var(--muted); }
.status { min-height: 1.6em; font-weight: 600; }
.status.ok { color: #2E7D4F; }
.status.error { color: #C0392B; }
@media (prefers-color-scheme: dark) { .status.ok { color: #7BD39C; } .status.error { color: #FF8A7A; } }

/* Fuß */
.site-footer { border-top: 1px solid var(--line); padding: 32px 0 40px; color: var(--muted); font-size: 15px; }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 18px; }
.site-footer a { color: var(--muted); }

@media (max-width: 900px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .hero-text { padding-bottom: 8px; }
  .steps { grid-template-columns: 1fr 1fr; }
  .features { grid-template-columns: 1fr 1fr; }
  .gallery { grid-template-columns: repeat(5, 70%); overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 8px; }
  .gallery figure { scroll-snap-align: center; }
  .programs { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .nav { display: none; }
  .steps, .features { grid-template-columns: 1fr; }
  section { padding: 56px 0; }
}