/*
 * Stil für die ChatGPT‑Plus‑Präsentation
 *
 * Diese Datei definiert Farben, Layout und Typografie für die Slides.
 */

:root {
  --bg-color: #0e1a24;
  --slide-bg: rgba(14, 26, 36, 0.95);
  --accent-color: #10a37f;
  --text-color: #e5f4ee;
  --muted-color: #8aa3b4;
  --font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
}

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: var(--font-family);
  color: var(--text-color);
  background-color: var(--bg-color);
}

#presentation {
  position: relative;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  /* Hoher z-index, damit die Präsentation über eventuellen Browser‑Overlays liegt */
  z-index: 9999;
}

.slide {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 2rem 3rem;
  height: 100vh;
  box-sizing: border-box;
  scroll-snap-align: start;
}

.slide.active {
  display: flex;
}

/* Titel‑Slide mit Hintergrundbild */
.title-slide {
  position: relative;
  width: 100%;
  height: 100%;
  text-align: center;
  justify-content: center;
  align-items: center;
  background-image: url('assets/background.png');
  background-size: cover;
  background-position: center;
  color: #ffffff;
}

.title-slide h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  line-height: 1.2;
  text-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
}

.title-slide .subtitle {
  font-size: 1.2rem;
  color: #d1e7de;
  margin-bottom: 2rem;
}

.title-slide .date {
  font-size: 0.9rem;
  color: #a2bfc4;
}

h2 {
  font-size: 2rem;
  margin-top: 0;
  margin-bottom: 1rem;
  color: var(--accent-color);
}

h3 {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
  color: var(--accent-color);
}

p {
  line-height: 1.6;
  margin-bottom: 1rem;
}

ol.agenda-list {
  list-style: decimal;
  padding-left: 1.5rem;
}

ol.agenda-list li {
  margin-bottom: 0.5rem;
}

ul.benefits-list,
ul.features-list,
ul.tips-list {
  list-style: none;
  padding-left: 0;
  margin: 0;
}

ul.benefits-list li,
ul.features-list li,
ul.tips-list li {
  margin-bottom: 0.6rem;
  padding-left: 1.2rem;
  position: relative;
}

ul.benefits-list li::before,
ul.features-list li::before,
ul.tips-list li::before {
  content: '•';
  color: var(--accent-color);
  position: absolute;
  left: 0;
}

.two-columns {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
}

.two-columns .column {
  flex: 1;
  min-width: 260px;
}

.chart-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.chart-container img {
  max-width: 100%;
  height: auto;
  border: 1px solid #22333c;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.chart-caption {
  font-size: 0.8rem;
  color: var(--muted-color);
  margin-top: 0.4rem;
  text-align: center;
}

.pricing-note {
  margin-top: 1rem;
  font-style: italic;
  color: var(--muted-color);
}

/* Fußnoten am Ende der Slides: gut sichtbar, etwas größer */
/* Fußnotenblock: am Ende des Inhalts, aber oberhalb der Navigationsleiste */
.footnotes {
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--muted-color);
}

.footnotes span {
  margin-right: 0.4rem;
  cursor: pointer;
  color: var(--accent-color);
}

.footnotes span:hover {
  text-decoration: underline;
}

#navigation {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0.6rem 0;
  background-color: rgba(14, 26, 36, 0.95);
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.4);
  z-index: 10000;
}

#navigation .nav-btn {
  background-color: var(--accent-color);
  color: #ffffff;
  border: none;
  padding: 0.4rem 1rem;
  margin: 0 1rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 1rem;
  transition: background-color 0.2s ease;
}

#navigation .nav-btn:disabled {
  background-color: #4f6f68;
  cursor: default;
}

#navigation .nav-btn:not(:disabled):hover {
  background-color: #12866c;
}

#indicator {
  font-size: 0.9rem;
  color: var(--muted-color);
}

/* Quellenliste */
.sources-list {
  list-style: decimal;
  padding-left: 1.5rem;
}

.sources-list li {
  margin-bottom: 0.4rem;
  font-size: 0.85rem;
}

.sources-list a {
  color: var(--accent-color);
  text-decoration: none;
}

.sources-list a:hover {
  text-decoration: underline;
}

.footnote-info {
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--muted-color);
}