/* Snorkeling Duck · Tauchgang-Kurs · Lektions-Seite (Web + PDF) */
/* Fonts lokal gehostet – kein Google Fonts Drittland-Transfer */
@font-face {
  font-family: 'Fraunces';
  src: url('../fonts/fraunces-700.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Fraunces';
  src: url('../fonts/fraunces-700.ttf') format('truetype');
  font-weight: 700;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: 'Fraunces';
  src: url('../fonts/fraunces-900.ttf') format('truetype');
  font-weight: 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Fraunces';
  src: url('../fonts/fraunces-900.ttf') format('truetype');
  font-weight: 900;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: 'Plus Jakarta Sans';
  src: url('../fonts/jakarta-400.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Plus Jakarta Sans';
  src: url('../fonts/jakarta-500.ttf') format('truetype');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Plus Jakarta Sans';
  src: url('../fonts/jakarta-600.ttf') format('truetype');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Plus Jakarta Sans';
  src: url('../fonts/jakarta-700.ttf') format('truetype');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Plus Jakarta Sans';
  src: url('../fonts/jakarta-800.ttf') format('truetype');
  font-weight: 800;
  font-style: normal;
  font-display: swap;
}

:root {
  --ink: #192635;
  --ink-deep: #010E1B;
  --gold: #FFC316;
  --amber: #FFA329;
  --aqua: #0EA5C9;
  --sky: #7DD3FC;
  --green: #1DB96A;
  --cream: #FFF8E7;
  --snow: #F8FAFC;
  --rule: #E5E7EB;
  --muted: #6B7280;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: 'Plus Jakarta Sans', -apple-system, sans-serif;
  color: var(--ink);
  background: #FFFFFF;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

/* === TOP BAR === */
.topbar {
  background: linear-gradient(135deg, var(--ink) 0%, var(--ink-deep) 100%);
  color: #FFFFFF;
  padding: 18px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 50;
}
.topbar .brand {
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
}
.topbar .course {
  font-size: 13px;
  opacity: 0.85;
}
.topbar a {
  color: var(--gold);
  text-decoration: none;
  font-weight: 700;
}

/* === HERO === */
.hero {
  background: linear-gradient(135deg, var(--ink) 0%, var(--ink-deep) 100%);
  color: #FFFFFF;
  padding: 48px 32px 80px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -180px; right: -120px;
  width: 480px; height: 480px;
  background: radial-gradient(circle, rgba(255,195,22,0.22) 0%, transparent 60%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -200px; left: -120px;
  width: 420px; height: 420px;
  background: radial-gradient(circle, rgba(255,163,41,0.16) 0%, transparent 60%);
  pointer-events: none;
}
.hero-inner {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.hero .kicker {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.35em;
  color: var(--gold);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.hero h1 {
  font-family: 'Fraunces', serif;
  font-weight: 900;
  font-style: italic;
  font-size: 56px;
  line-height: 1;
  letter-spacing: -0.03em;
  margin: 0 0 12px;
}
.hero h1 .accent { color: var(--gold); }
.hero .sub {
  font-size: 20px;
  color: var(--sky);
  max-width: 640px;
  line-height: 1.4;
  margin: 0 0 28px;
}
.hero .meta {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 13px;
  opacity: 0.85;
}
.hero .meta span { font-weight: 700; letter-spacing: 0.05em; }
.hero .meta strong { color: var(--gold); }

/* === LEVEL SWITCH === */
.level-switch {
  display: inline-flex;
  margin-top: 22px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 999px;
  padding: 4px;
  backdrop-filter: blur(10px);
}
.level-switch .level-btn {
  padding: 8px 20px;
  border-radius: 999px;
  text-decoration: none;
  color: rgba(255,255,255,0.7);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.02em;
  transition: background 0.15s ease, color 0.15s ease;
}
.level-switch .level-btn:hover { color: #FFFFFF; }
.level-switch .level-btn.active {
  background: var(--gold);
  color: var(--ink);
}

/* === TROUBLESHOOTING TABLE === */
.trouble {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
}
.trouble th, .trouble td {
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}
.trouble th {
  background: var(--cream);
  font-weight: 800;
  color: var(--ink);
  letter-spacing: 0.02em;
}
.trouble td code {
  background: rgba(25,38,53,0.06);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 12px;
}

/* === CHECKLIST === */
ul.checklist { list-style: none; padding: 0; margin: 16px 0 24px; }
ul.checklist li {
  position: relative;
  padding: 10px 10px 10px 38px;
  border-bottom: 1px solid var(--rule);
}
ul.checklist li::before {
  content: '';
  position: absolute;
  left: 8px; top: 14px;
  width: 18px; height: 18px;
  border: 2px solid var(--gold);
  border-radius: 4px;
  background: #FFFFFF;
}

/* === MAIN CONTAINER === */
main {
  max-width: 900px;
  margin: -48px auto 0;
  padding: 0 32px 80px;
  position: relative;
  z-index: 2;
}

/* === VIDEO === */
.video-box {
  background: #000;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 30px 60px rgba(25,38,53,0.35);
  aspect-ratio: 16 / 9;
  margin-bottom: 36px;
}
.video-box video {
  width: 100%;
  height: 100%;
  display: block;
  background: #000;
}
.video-caption {
  font-size: 13px;
  color: var(--muted);
  text-align: center;
  margin-top: -20px;
  margin-bottom: 40px;
}

/* === ACTIONS (Download-Buttons) === */
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0 0 40px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 24px;
  border-radius: 999px;
  font-weight: 800;
  letter-spacing: 0.02em;
  text-decoration: none;
  font-size: 14px;
  border: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn-primary {
  background: var(--gold);
  color: var(--ink);
  box-shadow: 0 6px 20px rgba(255,195,22,0.35);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 10px 24px rgba(255,195,22,0.45); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 2px solid var(--ink);
}
.btn-ghost:hover { background: var(--ink); color: var(--gold); }

/* === BODY TEXT === */
.lesson h2 {
  font-family: 'Fraunces', serif;
  font-weight: 900;
  font-style: italic;
  font-size: 36px;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--ink);
  margin: 44px 0 14px;
  padding-top: 12px;
  border-top: 2px solid var(--gold);
}
.lesson h3 {
  font-family: 'Fraunces', serif;
  font-weight: 900;
  font-style: italic;
  font-size: 24px;
  color: var(--ink);
  margin: 28px 0 10px;
  letter-spacing: -0.01em;
}
.lesson h4 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--aqua);
  margin: 24px 0 8px;
}
.lesson p { margin: 0 0 14px; }
.lesson strong { color: var(--ink); font-weight: 700; }
.lesson em { color: var(--amber); font-style: italic; font-weight: 700; }
.lesson ul, .lesson ol { margin: 10px 0 18px; padding-left: 24px; }
.lesson li { margin-bottom: 6px; }
.lesson li::marker { color: var(--amber); font-weight: 800; }
.lesson a { color: var(--aqua); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }
.lesson hr { border: none; border-top: 1px dashed var(--rule); margin: 36px 0; }

.lesson blockquote {
  margin: 20px 0;
  padding: 18px 24px;
  border-left: 4px solid var(--gold);
  background: var(--cream);
  font-family: 'Fraunces', serif;
  font-style: italic;
  font-size: 18px;
  color: var(--ink);
  line-height: 1.4;
  border-radius: 0 12px 12px 0;
}
.lesson blockquote p { margin: 0 0 8px; }
.lesson blockquote p:last-child { margin-bottom: 0; }
.lesson blockquote strong { color: var(--amber); }

.lesson code {
  font-family: 'SF Mono', Menlo, monospace;
  font-size: 0.9em;
  background: var(--cream);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--ink);
}

.lesson pre {
  background: var(--ink-deep);
  color: var(--cream);
  padding: 20px 24px;
  border-radius: 12px;
  font-family: 'SF Mono', Menlo, monospace;
  font-size: 14px;
  line-height: 1.55;
  overflow-x: auto;
  margin: 14px 0 22px;
  border-left: 4px solid var(--gold);
}
.lesson pre code {
  background: transparent;
  padding: 0;
  color: inherit;
  font-size: inherit;
}

.lesson table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 14px;
}
.lesson th, .lesson td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--rule);
}
.lesson th {
  background: var(--ink);
  color: var(--gold);
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.lesson tr:nth-child(even) td { background: var(--snow); }

/* Checklisten-Style */
.lesson ul li input[type="checkbox"] {
  margin-right: 8px;
  accent-color: var(--amber);
}

/* === BONUS-BOX === */
.bonus {
  margin: 56px 0;
  padding: 32px;
  background: linear-gradient(135deg, var(--cream) 0%, #FFE7B0 100%);
  border-radius: 16px;
  position: relative;
}
.bonus::before {
  content: 'BONUS';
  position: absolute;
  top: -14px; left: 24px;
  background: var(--ink);
  color: var(--gold);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.2em;
}
.bonus h2 {
  font-family: 'Fraunces', serif;
  font-weight: 900;
  font-style: italic;
  font-size: 28px;
  margin: 0 0 8px;
  padding: 0;
  border: none;
  color: var(--ink);
}
.bonus > p {
  margin: 0 0 20px;
  color: var(--ink);
}
.bonus-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}
.bonus-card {
  background: #FFFFFF;
  border-radius: 10px;
  padding: 14px 16px;
  text-decoration: none;
  color: var(--ink);
  border-left: 3px solid var(--amber);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.bonus-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(25,38,53,0.12);
}
.bonus-card .num {
  font-family: 'Fraunces', serif;
  font-weight: 900;
  font-style: italic;
  font-size: 20px;
  color: var(--amber);
  line-height: 1;
}
.bonus-card .title {
  font-weight: 700;
  font-size: 14px;
  line-height: 1.3;
}
.bonus-card .hint {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-top: 2px;
}

/* === CTA === */
.cta {
  margin: 56px 0 40px;
  padding: 48px 32px;
  text-align: center;
  background: linear-gradient(135deg, var(--gold) 0%, var(--amber) 100%);
  color: var(--ink);
  border-radius: 16px;
}
.cta h2 {
  font-family: 'Fraunces', serif;
  font-weight: 900;
  font-style: italic;
  font-size: 34px;
  margin: 0 0 10px;
  padding: 0;
  border: none;
  color: var(--ink);
}
.cta p { font-size: 16px; margin: 4px 0; }
.cta a.btn-cta {
  display: inline-block;
  margin-top: 20px;
  padding: 14px 32px;
  background: var(--ink);
  color: var(--gold);
  border-radius: 999px;
  font-weight: 800;
  text-decoration: none;
  font-size: 15px;
}

/* === FOOTER === */
footer {
  border-top: 1px solid var(--rule);
  padding: 28px 32px;
  background: var(--snow);
  color: var(--muted);
  font-size: 13px;
}
.footer-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}
.footer-inner .copyright {
  color: var(--ink);
  font-weight: 700;
}
.footer-inner a { color: var(--amber); text-decoration: none; font-weight: 700; }

/* === RESPONSIVE === */
@media (max-width: 700px) {
  .topbar { flex-wrap: wrap; gap: 4px; padding: 10px 16px; }
  .topbar .brand { font-size: 12px; display: flex; align-items: center; }
  .topbar .brand img { height: 28px; width: 28px; }
  .topbar .course { font-size: 11px; }
  .hero { padding: 32px 20px 72px; }
  .hero h1 { font-size: 40px; }
  .hero .sub { font-size: 17px; }
  main { padding: 0 20px 60px; }
  .legal { padding: 32px 20px; }
  .legal h1 { font-size: 32px; }
  .legal h2 { font-size: 20px; }
  .lesson h2 { font-size: 28px; }
  .lesson h3 { font-size: 20px; }
  .lesson pre { font-size: 12px; padding: 16px; overflow-x: auto; word-break: break-all; }
  .cta h2 { font-size: 26px; }
  .cta { padding: 36px 20px; }
  .bonus { padding: 24px 16px; overflow-x: hidden; }
  .bonus-grid { grid-template-columns: repeat(2, 1fr) !important; }
  .bonus-grid[style*="repeat(3"] { grid-template-columns: repeat(2, 1fr) !important; }
}

/* === PRINT / PDF === */
@page {
  size: A4;
  margin: 18mm 14mm;
}

@media print {
  body { font-size: 10.5pt; line-height: 1.5; }
  .topbar { position: static; padding: 14pt 0; border-bottom: 2pt solid var(--gold); background: #FFFFFF; color: var(--ink); }
  .topbar .brand { color: var(--amber); }
  .topbar .course { color: var(--muted); }
  .hero {
    background: #FFFFFF;
    color: var(--ink);
    padding: 20pt 0 24pt;
    page-break-after: avoid;
  }
  .hero::before, .hero::after { display: none; }
  .hero h1 { font-size: 34pt; color: var(--ink); }
  .hero h1 .accent { color: var(--amber); }
  .hero .sub { font-size: 13pt; color: var(--ink); opacity: 0.75; }
  .hero .meta { color: var(--muted); }
  .hero .meta strong { color: var(--amber); }
  main { margin: 0; padding: 0; max-width: 100%; }

  /* Video → durch Hinweis-Box ersetzen im PDF */
  .video-box { display: none; }
  .video-caption { display: none; }
  .video-print-note {
    display: block !important;
    background: var(--cream);
    border-left: 4pt solid var(--gold);
    padding: 12pt 16pt;
    margin: 0 0 20pt;
    font-size: 10pt;
    color: var(--ink);
    border-radius: 0 8pt 8pt 0;
  }
  .video-print-note strong { color: var(--amber); }

  .actions { display: none; }

  .lesson h2 {
    font-size: 22pt;
    margin-top: 20pt;
    border-top: 1.5pt solid var(--gold);
    padding-top: 10pt;
    page-break-after: avoid;
  }
  .lesson h3 { font-size: 16pt; page-break-after: avoid; }
  .lesson h4 { font-size: 10pt; }
  .lesson p, .lesson li { font-size: 10.5pt; }
  .lesson pre { font-size: 8.5pt; page-break-inside: avoid; padding: 10pt 12pt; }
  .lesson blockquote { font-size: 11pt; padding: 10pt 14pt; page-break-inside: avoid; }
  .lesson table { font-size: 9.5pt; page-break-inside: avoid; }

  .bonus {
    page-break-before: always;
    page-break-inside: avoid;
    padding: 20pt;
  }
  .bonus h2 { font-size: 20pt; }
  .bonus-card { border: 1pt solid var(--rule); border-left: 3pt solid var(--amber); }

  .cta {
    page-break-before: always;
    page-break-inside: avoid;
    padding: 30pt 24pt;
  }
  .cta h2 { font-size: 24pt; }

  footer {
    padding: 14pt 0;
    border-top: 1pt solid var(--rule);
    background: #FFFFFF;
    font-size: 9pt;
  }
  .footer-inner { max-width: 100%; }
}

.video-print-note { display: none; }