/* Grundlegende Styles für die Bibel‑Lern‑App */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Light mode Farben */
  --background-color: #f8f9fa;
  --header-bg: #ffffff;
  --header-text: #333333;
  --card-bg: #ffffff;
  --card-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  --text-color: #333333;
  --button-bg: #007acc;
  --button-text: #ffffff;
  --button-bg-secondary: #e0e0e0;
  --button-text-secondary: #333333;
  --accent-default: #cccccc;
}

body.dark {
  /* Dark mode Farben */
  --background-color: #121212;
  --header-bg: #1f1f1f;
  --header-text: #e0e0e0;
  --card-bg: #2a2a2a;
  --card-shadow: 0 4px 12px rgba(0, 0, 0, 0.6);
  --text-color: #f0f0f0;
  --button-bg: #005f8f;
  --button-text: #ffffff;
  --button-bg-secondary: #3a3a3a;
  --button-text-secondary: #dddddd;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
    Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  background: var(--background-color);
  color: var(--text-color);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  background: var(--header-bg);
  color: var(--header-text);
  padding: 0.5rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  position: sticky;
  top: 0;
  z-index: 10;
}

header select {
  margin-right: 0.5rem;
  padding: 0.3rem 0.5rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 0.9rem;
  appearance: none;
}

.dark-toggle {
  display: flex;
  align-items: center;
  cursor: pointer;
  font-size: 0.9rem;
  margin-left: 1rem;
}

.dark-toggle input {
  margin-right: 0.3rem;
}

#counter {
  font-weight: bold;
  margin-right: 1rem;
}

main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem;
}

.hints {
  margin-bottom: 1rem;
  display: flex;
  gap: 1rem;
  font-size: 0.9rem;
}

.hints input {
  margin-right: 0.3rem;
}

#card-container {
  width: 100%;
  display: flex;
  justify-content: center;
}

.card {
  width: 90%;
  max-width: 420px;
  /* erhöht die Kartenhöhe um 25 % für mehr Platz bei langen Versen */
  height: 325px;
  perspective: 1000px;
  margin-bottom: 1rem;
}

.card-inner {
  width: 100%;
  height: 100%;
  transition: transform 0.6s;
  transform-style: preserve-3d;
  position: relative;
}

.card.flipped .card-inner {
  transform: rotateY(180deg);
}

.card-front,
.card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  border-radius: 16px;
  background: var(--card-bg);
  box-shadow: var(--card-shadow);
  color: var(--text-color);
  overflow: hidden;
}

.card-front {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: 1rem;
  border-top: 6px solid var(--accent-color, var(--accent-default));
}

.card-symbol {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  font-size: 3rem;
  opacity: 0.8;
  pointer-events: none;
}

.card-ref {
  font-size: 1.6rem;
  font-weight: bold;
  margin-top: auto;
}

/* Kommentar unter dem Verweis */
.card-comment {
  font-size: 0.9rem;
  margin-top: 0.5rem;
  color: var(--text-color);
  opacity: 0.8;
}

.card-back {
  transform: rotateY(180deg);
  padding: 1rem;
  border-top: 6px solid var(--accent-color, var(--accent-default));
  /* Positioniert den Text am oberen Rand und lässt längeren Text scrollen */
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  text-align: center;
  overflow-y: auto;
}

/* Zähler pro Lernkarte auf der Rückseite */
.card-back .card-counter {
  font-size: 0.9rem;
  font-weight: bold;
  margin-bottom: 0.5rem;
  opacity: 0.8;
  width: 100%;
  text-align: left;
}

.card-back .card-text {
  font-size: 1.1rem;
  line-height: 1.4;
  /* Lässt den Textbereich flexibel und scrollbar werden */
  width: 100%;
  max-height: 100%;
  overflow-y: auto;
}

/* Stil für die Schlüsselwörter auf der Vorderseite der Karte */
.card-front .card-keywords {
  font-size: 0.9rem;
  opacity: 0.8;
  margin-top: 0.4rem;
  width: 100%;
  word-break: break-word;
}

.buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 2rem;
}

.buttons button {
  padding: 0.6rem 1rem;
  font-size: 1rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.2s;
}

.buttons .correct {
  background: var(--button-bg);
  color: var(--button-text);
}

.buttons .wrong {
  background: var(--button-bg-secondary);
  color: var(--button-text-secondary);
}

.buttons .correct:hover {
  background: #005fa3;
}

.buttons .wrong:hover {
  background: #c7c7c7;
}

/* Splash Screen Styles */
#splash-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

#splash-screen.hidden {
  display: none;
}

.splash-content {
  background: var(--card-bg);
  color: var(--text-color);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--card-shadow);
  text-align: center;
  max-width: 320px;
}

.splash-content h1 {
  margin-bottom: 0.5rem;
}

.splash-content p {
  margin-bottom: 1rem;
}

.splash-buttons {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
}

.splash-buttons button {
  flex: 1;
  padding: 0.6rem;
  border: none;
  border-radius: 4px;
  font-size: 1rem;
  cursor: pointer;
}

.splash-buttons .install {
  background: var(--button-bg);
  color: var(--button-text);
}

.splash-buttons .secondary {
  background: var(--button-bg-secondary);
  color: var(--button-text-secondary);
}

/* Dienstklasse zum Ausblenden */
.hidden {
  display: none !important;
}

/* Responsive Adjustments */
@media (min-width: 600px) {
  .card {
    height: 300px;
  }
  .card-symbol {
    font-size: 3.5rem;
  }
}