/* ============================================
   KI-Denkraum — Shared Styles
   ============================================ */

:root {
  --paper: #F2EDE3;
  --paper-warm: #EBE4D6;
  --ink: #1A1A1A;
  --ink-soft: #5C5C5C;
  --ink-mute: #8C8579;
  --accent: #1F3A5C;
  --accent-soft: #4A6584;
  --line: #D4CCB8;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: 'Sora', sans-serif;
  font-weight: 400;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  position: relative;
}

/* Subtle paper grain */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' /%3E%3CfeColorMatrix values='0 0 0 0 0.4 0 0 0 0 0.35 0 0 0 0 0.3 0 0 0 0.08 0'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 1;
  opacity: 0.6;
  mix-blend-mode: multiply;
}

main { position: relative; z-index: 2; }

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 28px;
}

/* HEADER */
header {
  padding: 32px 0 0;
  border-bottom: 1px solid var(--line);
  margin-bottom: 80px;
}
header .container { display: flex; justify-content: space-between; align-items: center; padding-bottom: 20px; gap: 20px; }
header .date { font-family: 'Sora'; font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-mute); }

header a.logo-link {
  display: block;
  line-height: 0;
}

.logo-img {
  display: block;
  height: 120px;
  width: auto;
  max-width: 280px;
}

/* HERO (Hauptseite) */
.hero { padding: 60px 0 100px; }
.hero .eyebrow {
  font-family: 'Sora';
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 28px;
}
.hero h1 {
  font-family: 'Fraunces', serif;
  font-weight: 400;
  font-variation-settings: 'opsz' 144, 'SOFT' 50, 'WONK' 1;
  font-size: clamp(48px, 11vw, 96px);
  line-height: 0.95;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin-bottom: 32px;
}
.hero h1 em {
  font-style: italic;
  color: var(--accent);
  font-variation-settings: 'opsz' 144, 'SOFT' 100, 'WONK' 1;
}
.hero .subtitle {
  font-family: 'Fraunces', serif;
  font-style: italic;
  font-weight: 300;
  font-size: clamp(20px, 3.5vw, 26px);
  line-height: 1.4;
  color: var(--ink-soft);
  max-width: 540px;
  margin-bottom: 56px;
}
.hero .facts {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 28px 0;
}
.hero .fact .label {
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 8px;
  font-weight: 500;
}
.hero .fact .value {
  font-family: 'Fraunces', serif;
  font-size: 18px;
  color: var(--ink);
  line-height: 1.3;
  font-weight: 400;
}

/* SECTIONS */
section { padding: 60px 0; }

.section-number {
  font-family: 'Fraunces', serif;
  font-style: italic;
  font-weight: 300;
  color: var(--accent);
  font-size: 22px;
  margin-bottom: 8px;
}
.section-title {
  font-family: 'Fraunces', serif;
  font-weight: 500;
  font-size: clamp(32px, 6vw, 44px);
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin-bottom: 36px;
  color: var(--ink);
}
.section-title em {
  font-style: italic;
  color: var(--accent);
}

p {
  font-size: 17px;
  line-height: 1.75;
  color: var(--ink-soft);
  margin-bottom: 1.2em;
  max-width: 620px;
}
p strong { color: var(--ink); font-weight: 500; }
p a { color: var(--accent); border-bottom: 1px solid var(--accent-soft); text-decoration: none; transition: border 0.2s; }
p a:hover { border-bottom-color: var(--accent); }

/* FORMAT LIST */
.format-list {
  list-style: none;
  margin-top: 32px;
}
.format-list li {
  border-top: 1px solid var(--line);
  padding: 24px 0;
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 24px;
  align-items: baseline;
}
.format-list li:last-child { border-bottom: 1px solid var(--line); }
.format-list .duration {
  font-family: 'Fraunces', serif;
  font-style: italic;
  color: var(--accent);
  font-size: 18px;
}
.format-list .desc h4 {
  font-family: 'Fraunces', serif;
  font-weight: 500;
  font-size: 20px;
  color: var(--ink);
  margin-bottom: 6px;
}
.format-list .desc p {
  margin: 0;
  font-size: 15px;
  color: var(--ink-soft);
}

/* RULES */
.rules { background: var(--paper-warm); margin: 40px -28px 0; padding: 36px 28px; }
.rules h4 {
  font-family: 'Sora';
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 16px;
  font-weight: 600;
}
.rules h4 em { color: var(--accent); font-style: italic; }
.rules ul { list-style: none; }
.rules li {
  font-family: 'Fraunces', serif;
  font-size: 17px;
  color: var(--ink-soft);
  padding: 6px 0;
  padding-left: 28px;
  position: relative;
}
.rules li::before {
  content: '×';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 18px;
  font-weight: 400;
}

/* PULL QUOTE */
blockquote {
  font-family: 'Fraunces', serif;
  font-style: italic;
  font-weight: 300;
  font-size: clamp(22px, 4vw, 30px);
  line-height: 1.35;
  color: var(--ink);
  padding: 40px 0 40px 24px;
  border-left: 2px solid var(--accent);
  margin: 48px 0;
  max-width: 580px;
}

/* CTA */
.cta-block {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 60px 0;
  margin: 80px 0;
  text-align: center;
}
.cta-block .eyebrow {
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 18px;
  font-weight: 500;
}
.cta-block h3 {
  font-family: 'Fraunces', serif;
  font-weight: 400;
  font-size: clamp(28px, 5vw, 38px);
  line-height: 1.2;
  margin-bottom: 32px;
  color: var(--ink);
}
.cta-block h3 em { font-style: italic; color: var(--accent); }
.button {
  display: inline-block;
  background: var(--ink);
  color: var(--paper);
  padding: 18px 42px;
  text-decoration: none;
  font-family: 'Sora';
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: all 0.3s ease;
  border: 1px solid var(--ink);
}
.button:hover { background: var(--accent); border-color: var(--accent); }
.cta-block .secondary { display: block; margin-top: 20px; font-size: 13px; color: var(--ink-mute); }
.cta-block .secondary a { color: var(--ink-soft); }

/* VERANSTALTER */
.veranstalter { display: grid; gap: 20px; }
.veranstalter .row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}
.veranstalter .row:first-child { border-top: 1px solid var(--line); }
.veranstalter .key {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
  font-weight: 500;
}
.veranstalter .value {
  font-family: 'Fraunces', serif;
  font-size: 17px;
  color: var(--ink);
}

/* ============================================
   SUBPAGE STYLES (Bedingungen, Datenschutz, Impressum)
   ============================================ */

.page-meta {
  padding: 0 0 24px;
}
.back-link {
  font-family: 'Sora';
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.back-link:hover { border-bottom-color: var(--accent); }

.page-title {
  font-family: 'Fraunces', serif;
  font-weight: 500;
  font-size: clamp(40px, 8vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
  color: var(--ink);
  margin-top: 20px;
}
.page-title em { font-style: italic; color: var(--accent); }

.page-subtitle {
  font-family: 'Sora';
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 80px;
  font-weight: 500;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line);
}

.content-section {
  padding: 56px 0;
  border-bottom: 1px solid var(--line);
}
.content-section:last-of-type { border-bottom: none; }

.content-section h2 {
  font-family: 'Fraunces', serif;
  font-weight: 500;
  font-size: clamp(26px, 4.5vw, 34px);
  line-height: 1.15;
  color: var(--ink);
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}
.content-section h2 em { font-style: italic; color: var(--accent); }

.content-section h3 {
  font-family: 'Fraunces', serif;
  font-weight: 500;
  font-size: 21px;
  margin: 32px 0 14px;
  color: var(--ink);
}

.content-section h4 {
  font-family: 'Sora';
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 24px 0 10px;
  color: var(--ink);
}

.content-section ul,
.content-section ol {
  padding-left: 24px;
  margin-bottom: 1.4em;
  max-width: 620px;
}
.content-section li {
  margin-bottom: 0.6em;
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 1.7;
}
.content-section li strong { color: var(--ink); font-weight: 500; }

.info-note {
  background: var(--paper-warm);
  padding: 24px 28px;
  margin: 28px 0;
  border-left: 3px solid var(--accent);
  max-width: 620px;
}
.info-note p { margin-bottom: 0.8em; font-size: 15px; }
.info-note p:last-child { margin-bottom: 0; }
.info-note strong { color: var(--ink); }

.data-table {
  margin: 24px 0;
  border-top: 1px solid var(--line);
  max-width: 620px;
}
.data-table .row {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}
.data-table .key {
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
  font-weight: 500;
}
.data-table .value {
  font-family: 'Fraunces', serif;
  font-size: 17px;
  color: var(--ink);
  line-height: 1.5;
}

/* FOOTER */
footer {
  background: var(--ink);
  color: var(--paper);
  padding: 60px 0 30px;
  margin-top: 100px;
}
footer .container { display: flex; flex-direction: column; gap: 40px; }
footer h5 {
  font-family: 'Fraunces', serif;
  font-style: italic;
  font-weight: 300;
  font-size: 24px;
  color: var(--paper);
  margin-bottom: 16px;
}
footer .links { display: flex; flex-direction: column; gap: 10px; font-size: 14px; }
footer .links a { color: var(--paper-warm); text-decoration: none; border-bottom: 1px solid transparent; transition: border 0.2s; }
footer .links a:hover { border-bottom-color: var(--accent-soft); }
footer .copyright {
  border-top: 1px solid #333;
  padding-top: 24px;
  font-size: 12px;
  color: var(--ink-mute);
  line-height: 1.6;
}

/* MOBILE */
@media (max-width: 600px) {
  .logo-img { height: 90px; }
  header .container { padding-bottom: 18px; }
  .hero .facts { grid-template-columns: 1fr; gap: 16px; }
  .hero .facts .fact { padding: 8px 0; border-bottom: 1px solid var(--line); }
  .hero .facts .fact:last-child { border-bottom: none; }
  .format-list li { grid-template-columns: 1fr; gap: 8px; }
  .veranstalter .row { grid-template-columns: 1fr; gap: 4px; padding: 12px 0; }
  .data-table .row { grid-template-columns: 1fr; gap: 4px; padding: 14px 0; }
  .page-subtitle { margin-bottom: 56px; }
}