/* BUCH Coach – Onepager
   Keine Cookies, keine externen Ressourcen, kein JavaScript.
   Schriften lokal (SIL Open Font License). */

@font-face { font-family: "Fraunces"; font-style: normal; font-weight: 600; font-display: swap; src: url("../fonts/fraunces-latin-600-normal.woff2") format("woff2"); }
@font-face { font-family: "Fraunces"; font-style: italic; font-weight: 400; font-display: swap; src: url("../fonts/fraunces-latin-400-italic.woff2") format("woff2"); }
@font-face { font-family: "Fraunces"; font-style: italic; font-weight: 500; font-display: swap; src: url("../fonts/fraunces-latin-500-italic.woff2") format("woff2"); }
@font-face { font-family: "DM Sans"; font-style: normal; font-weight: 400; font-display: swap; src: url("../fonts/dm-sans-latin-400-normal.woff2") format("woff2"); }
@font-face { font-family: "DM Sans"; font-style: italic; font-weight: 400; font-display: swap; src: url("../fonts/dm-sans-latin-400-italic.woff2") format("woff2"); }
@font-face { font-family: "DM Sans"; font-style: normal; font-weight: 500; font-display: swap; src: url("../fonts/dm-sans-latin-500-normal.woff2") format("woff2"); }
@font-face { font-family: "DM Sans"; font-style: normal; font-weight: 600; font-display: swap; src: url("../fonts/dm-sans-latin-600-normal.woff2") format("woff2"); }
@font-face { font-family: "DM Sans"; font-style: normal; font-weight: 700; font-display: swap; src: url("../fonts/dm-sans-latin-700-normal.woff2") format("woff2"); }

:root {
  color-scheme: dark;

  /* Markenfarben BuchCoach */
  --bg: #1d2129;          /* Nacht */
  --bg-alt: #181b22;
  --surface: #262b35;     /* Fläche */
  --surface-2: #2e3440;
  --line: #363c49;
  --brand: #2e74b8;       /* Button-Blau, weiße Schrift 4,9:1 */
  --brand-hover: #25649f;
  --blue: #3b87d0;        /* Logo-Blau */
  --accent: #8dbdeb;      /* Blau hell, Text auf Nacht 8,2:1 */
  --gold: #c9a45c;        /* Akzent, 6,9:1 auf Nacht */
  --creme: #f1e9d8;
  --text: #f1e9d8;        /* Creme, 13,4:1 auf Nacht */
  --text-2: #b4b8c2;
  --text-3: #8a8f9b;

  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans: "DM Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  /* Fluide Skala: wächst stufenlos zwischen ca. 360 px und 1280 px Viewport */
  --fs-sm: clamp(0.84rem, 0.8rem + 0.15vw, 0.92rem);
  --fs-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --fs-lead: clamp(1.08rem, 0.98rem + 0.45vw, 1.3rem);
  --fs-h3: clamp(1.15rem, 1.05rem + 0.45vw, 1.4rem);
  --fs-h2: clamp(1.7rem, 1.3rem + 1.8vw, 2.7rem);
  --fs-h1: clamp(2.2rem, 1.4rem + 3.6vw, 4.1rem);
  --fs-stat: clamp(2.4rem, 1.8rem + 2.6vw, 3.8rem);

  --space-s: clamp(0.75rem, 0.6rem + 0.6vw, 1.1rem);
  --space-m: clamp(1.25rem, 1rem + 1vw, 2rem);
  --space-l: clamp(2rem, 1.4rem + 2.6vw, 3.5rem);
  --space-xl: clamp(3.5rem, 2.4rem + 5vw, 7rem);

  --radius: 12px;
  --max: 72rem;
  --gutter: clamp(1rem, 0.5rem + 3vw, 2.5rem);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 5rem; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: var(--fs-base);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-underline-offset: 0.2em; text-decoration-thickness: 1px; }
a:hover { color: var(--creme); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.15; margin: 0; text-wrap: balance; }
p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

.wrap { width: min(100% - 2 * var(--gutter), var(--max)); margin-inline: auto; }

.skip { position: absolute; left: -999px; top: 0; background: var(--brand); color: #fff; padding: 0.6rem 1rem; z-index: 99; }
.skip:focus { left: 1rem; top: 1rem; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(32, 36, 44, 0.92);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-block: 0.7rem; }
.brand img { height: clamp(38px, 32px + 1.2vw, 48px); width: auto; }
.nav { display: flex; align-items: center; gap: clamp(0.9rem, 0.4rem + 1.5vw, 1.9rem); font-size: var(--fs-sm); font-weight: 500; }
.nav a { color: var(--text-2); text-decoration: none; }
.nav a:hover { color: var(--text); }
.nav .btn { color: #fff; }
@media (max-width: 860px) { .nav a:not(.btn) { display: none; } }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5em;
  background: var(--brand); color: #fff; text-decoration: none;
  font-weight: 600; font-size: var(--fs-sm); letter-spacing: 0.01em;
  padding: 0.75em 1.35em; border-radius: 8px; border: 2px solid var(--brand);
  transition: background 0.2s, border-color 0.2s, transform 0.15s;
}
.btn:hover { background: var(--brand-hover); border-color: var(--brand-hover); color: #fff; transform: translateY(-1px); }
.btn-lg { font-size: var(--fs-base); padding: 0.85em 1.6em; }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--line); }
.btn-ghost:hover { background: transparent; border-color: var(--accent); color: var(--accent); }

/* Sections */
section { padding-block: var(--space-xl); }
.alt { background: var(--bg-alt); }
.eyebrow, .section-head .eyebrow, .about-text .eyebrow, .contact-box .eyebrow { font-size: var(--fs-sm); font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--gold); margin-bottom: 0.9rem; line-height: 1.5; }
.section-head { max-width: 44rem; margin-bottom: var(--space-l); }
.section-head h2 { font-size: var(--fs-h2); margin-bottom: 0.7em; }
.section-head p { color: var(--text-2); font-size: var(--fs-lead); }

/* Hero */
.hero { padding-block: var(--space-l) var(--space-xl); }
.hero-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr)); gap: var(--space-l); align-items: center; }
.hero h1 { font-size: var(--fs-h1); margin-bottom: 0.45em; }
.hero h1 em { font-style: italic; font-weight: 400; color: var(--accent); }
.hero .lead { font-size: var(--fs-lead); color: var(--text-2); max-width: 34rem; margin-bottom: var(--space-m); }
.cta-row { display: flex; flex-wrap: wrap; gap: 0.8rem; align-items: center; }
.hint { margin-top: 1rem; font-size: var(--fs-sm); color: var(--text-3); }
.portrait { position: relative; max-width: 30rem; justify-self: center; width: 100%; }
.portrait img { border-radius: var(--radius); aspect-ratio: 4 / 5; object-fit: cover; width: 100%; }
.portrait figcaption { position: absolute; left: 1rem; bottom: 1rem; right: 1rem; background: rgba(27, 30, 37, 0.88); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); border-radius: 8px; padding: 0.7rem 1rem; font-size: var(--fs-sm); line-height: 1.45; }
.portrait figcaption strong { display: block; font-family: var(--serif); font-size: var(--fs-base); color: var(--text); }
.portrait figcaption span { color: var(--text-2); }

/* Kennzahlen */
.stats { padding-block: var(--space-l); border-block: 1px solid var(--line); }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr)); gap: var(--space-m); text-align: center; }
.stat b { display: block; font-family: var(--serif); font-size: var(--fs-stat); font-weight: 600; line-height: 1; color: var(--text); }
.stat span { display: block; margin-top: 0.4rem; color: var(--text-2); font-size: var(--fs-sm); }

/* Karten */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 17rem), 1fr)); gap: var(--space-s); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: var(--space-m); transition: border-color 0.2s, transform 0.2s; }
.card:hover { border-color: #6b5a39; transform: translateY(-2px); }
.card h3 { font-size: var(--fs-h3); margin-bottom: 0.6em; }
.card p, .card li { color: var(--text-2); font-size: var(--fs-sm); line-height: 1.7; }
.num { display: inline-block; font-family: var(--serif); font-size: var(--fs-h3); color: var(--gold); margin-bottom: 0.5rem; }
.card ul { margin: 0.6rem 0 0; padding-left: 1.1rem; }

/* Coaching */
.split { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 22rem), 1fr)); gap: var(--space-l); align-items: start; }
.checklist { list-style: none; margin: 0; padding: 0; }
.checklist li { position: relative; padding: 0.75rem 0 0.75rem 2rem; border-bottom: 1px solid var(--line); color: var(--text-2); }
.checklist li::before { content: ""; position: absolute; left: 0.2rem; top: 1.15rem; width: 0.8rem; height: 0.45rem; border-left: 2px solid var(--gold); border-bottom: 2px solid var(--gold); transform: rotate(-45deg); }
.steps { list-style: none; margin: 0; padding: 0; counter-reset: s; }
.steps li { counter-increment: s; position: relative; padding: 0 0 var(--space-m) 3.4rem; }
.steps li::before { content: counter(s); position: absolute; left: 0; top: 0; width: 2.3rem; height: 2.3rem; border-radius: 50%; border: 2px solid var(--gold); display: grid; place-items: center; font-family: var(--serif); color: var(--gold); }
.steps li:not(:last-child)::after { content: ""; position: absolute; left: 1.1rem; top: 2.6rem; bottom: 0.3rem; width: 2px; background: var(--line); }
.steps strong { display: block; color: var(--text); font-weight: 600; }
.steps span { color: var(--text-2); font-size: var(--fs-sm); }
.subhead { font-family: var(--serif); font-size: var(--fs-h3); color: var(--text); margin-bottom: 1rem; }

/* Referenzen */
.ref .tag { display: inline-block; font-size: 0.72rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.6rem; }
.ref .author { margin-top: 0.8rem; color: var(--text); font-size: var(--fs-sm); font-weight: 500; }

/* Über mich */
.about-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 20rem), 1fr)); gap: var(--space-l); }
.about-text p { color: var(--text-2); }
.about-text .quote { font-family: var(--serif); font-style: italic; font-size: var(--fs-h3); color: var(--text); border-left: 3px solid var(--gold); padding-left: 1rem; margin-block: var(--space-m); line-height: 1.4; }
.pills { display: flex; flex-wrap: wrap; gap: 0.5rem; list-style: none; padding: 0; margin: 0 0 var(--space-m); }
.pills li { background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 0.35rem 0.9rem; font-size: var(--fs-sm); color: var(--text-2); }

/* FAQ */
.faq { max-width: 50rem; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; padding: 1.1rem 2.5rem 1.1rem 0; position: relative; font-weight: 600; font-size: var(--fs-base); color: var(--text); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0.3rem; top: 50%; transform: translateY(-50%); font-family: var(--serif); font-size: 1.6rem; color: var(--gold); transition: transform 0.2s; }
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details p { color: var(--text-2); padding-bottom: 1.2rem; margin: 0; max-width: 44rem; }

/* Kontakt */
.contact-box { background: var(--surface); border: 1px solid var(--line); border-top: 4px solid var(--gold); border-radius: calc(var(--radius) + 4px); padding: var(--space-l); display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 19rem), 1fr)); gap: var(--space-l); align-items: center; }
.contact-box h2 { font-size: var(--fs-h2); margin-bottom: 0.5em; }
.contact-box p { color: var(--text-2); }
.contact-list { list-style: none; margin: 0 0 var(--space-m); padding: 0; }
.contact-list li { padding: 0.55rem 0; border-bottom: 1px solid rgba(255, 255, 255, 0.08); display: flex; flex-wrap: wrap; gap: 0.2rem 1rem; }
.contact-list li span { color: var(--text-3); min-width: 6.5rem; font-size: var(--fs-sm); padding-top: 0.15em; }
.contact-list a { color: var(--text); text-decoration: none; font-weight: 500; overflow-wrap: anywhere; }
.contact-list a:hover { color: var(--accent); }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding-block: var(--space-m); font-size: var(--fs-sm); color: var(--text-3); }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.8rem; }
.site-footer nav { display: flex; gap: 1.4rem; }
.site-footer a { color: var(--text-2); text-decoration: none; }
.site-footer a:hover { color: var(--accent); }

/* Rechtstexte */
.legal { padding-block: var(--space-l) var(--space-xl); }
.legal .wrap { max-width: 46rem; }
.legal h1 { font-size: var(--fs-h2); margin-bottom: var(--space-m); }
.legal h2 { font-size: var(--fs-h3); margin: var(--space-m) 0 0.6rem; color: var(--text); }
.legal p, .legal li { color: var(--text-2); font-size: var(--fs-sm); }
.legal ul { padding-left: 1.2rem; }
.back { display: inline-block; margin-bottom: var(--space-m); font-size: var(--fs-sm); }

@media print {
  body { background: #fff; color: #000; }
  .site-header, .cta-row, .skip { display: none; }
  a { color: #000; }
}

/* Referenz-Cover */
.books { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 15rem), 1fr)); gap: var(--space-m) var(--space-s); }
.book { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: var(--space-m); display: flex; flex-direction: column; }
.book img, .cover-placeholder { height: clamp(13rem, 10rem + 8vw, 17rem); width: auto; max-width: 100%; object-fit: contain; margin: 0 auto var(--space-m); filter: drop-shadow(0 10px 18px rgba(0, 0, 0, 0.35)); transition: transform 0.25s; }
.book img.flat { height: clamp(11.5rem, 8.8rem + 7vw, 15rem); margin-block: clamp(0.75rem, 0.6rem + 0.5vw, 1rem) calc(var(--space-m) + clamp(0.75rem, 0.6rem + 0.5vw, 1rem)); border-radius: 2px; }
.book:hover img { transform: translateY(-4px) rotate(-1deg); }
.book .tag { font-size: 0.72rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.4rem; }
.book h3 { font-size: var(--fs-h3); margin-bottom: 0.3rem; }
.book .author { color: var(--text); font-size: var(--fs-sm); font-weight: 500; margin-bottom: 0.7rem; }
.book p { color: var(--text-2); font-size: var(--fs-sm); line-height: 1.65; }
.cover-placeholder { aspect-ratio: 3 / 4; display: grid; place-items: center; background: #2c4a6b; border-radius: 3px; font-family: var(--serif); font-size: 1.4rem; text-align: center; color: var(--text); line-height: 1.2; }
@media (prefers-reduced-motion: reduce) { .book:hover img { transform: none; } }

/* Hörbuch und Video: technische Daten */
.spec-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 24rem), 1fr)); gap: var(--space-s); }
.spec { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: var(--space-m); }
.spec h3 { font-size: var(--fs-h3); margin-bottom: 0.4rem; }
.spec-lead { color: var(--text); font-size: var(--fs-base); margin-bottom: var(--space-s); }
.spec dl { margin: 0; }
.spec dl div { display: grid; grid-template-columns: minmax(8rem, 2fr) 3fr; gap: 0.2rem 1rem; padding: 0.6rem 0; border-top: 1px solid var(--line); }
.spec dt { color: var(--text-3); font-size: var(--fs-sm); }
.spec dd { margin: 0; color: var(--text); font-size: var(--fs-sm); font-variant-numeric: tabular-nums; }
.spec-note { margin-top: var(--space-s); color: var(--text-3); font-size: 0.8rem; }
@media (max-width: 420px) { .spec dl div { grid-template-columns: 1fr; } }