:root {
    --primary: #c0392b; /* Latein Rot */
    --primary-hover: #a93226;
    --bg: #f0f2f5;      /* Heller, moderner Hintergrund */
    --card-bg: #ffffff;
    --text: #333;
    --border: #dfe6e9;
    --correct: #d4edda;
    --wrong: #f8d7da;
    --typo: #fff3cd;
    --incomplete: #fff3cd;
}

* { box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    margin: 0;
    padding: 20px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    max-width: 480px; /* Handy-optimierte Breite (wie Englisch App) */
    width: 100%;
    margin: 20px auto; /* Zentriert mit Abstand oben */
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: flex-start; /* Oben anfangen */
}

h1 {
    text-align: center;
    color: var(--primary);
    margin-bottom: 20px;
    font-size: 1.8rem;
    font-weight: 800;
}

/* --- CARD DESIGN (Alles in einer Box) --- */
.card, #setup-screen {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 20px; /* Schön rund wie iOS */
    box-shadow: 0 8px 30px rgba(0,0,0,0.08); /* Weicher Schatten */
    display: flex;
    flex-direction: column; /* Alles untereinander */
    width: 100%;
}

/* Lektionen Auswahl */
.section-title { font-weight: bold; margin-bottom: 15px; text-align: center; }
.lesson-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(65px, 1fr));
    gap: 10px;
    margin-bottom: 20px;
    max-height: 40vh;
    overflow-y: auto;
}
.lesson-item label {
    display: block; padding: 8px; background: #f1f2f6; border-radius: 8px;
    text-align: center; font-size: 0.9rem; font-weight: 600; cursor: pointer;
    border: 2px solid transparent; transition: all 0.2s;
}
.lesson-item input:checked + label {
    background: var(--primary); color: white;
}
.options { text-align: center; margin-bottom: 20px; }


/* Quiz Elemente */
.label { font-size: 0.75rem; text-transform: uppercase; color: #888; letter-spacing: 1px; margin-bottom: 5px; }
.question { font-size: 2.2rem; font-weight: 800; color: #2d3436; margin: 0 0 5px 0; line-height: 1.2; }
.hint { font-style: italic; color: #636e72; font-size: 0.9rem; margin-bottom: 25px; min-height: 1.2em; }

/* Inputs */
.input-row { margin-bottom: 15px; }
.lbl { display: block; font-size: 0.85rem; font-weight: bold; margin-bottom: 5px; color: #555; }
.quiz-input {
    width: 100%; padding: 15px; font-size: 1.1rem;
    border: 2px solid #e0e0e0; border-radius: 12px;
    background: #fdfdfd; transition: border 0.2s; outline: none;
    -webkit-appearance: none;
}
.quiz-input:focus { border-color: var(--primary); background: #fff; }

/* Feedback Status Farben */
.correct { background-color: var(--correct); border-color: #28a745 !important; }
.wrong { background-color: var(--wrong); border-color: #dc3545 !important; }
.typo { background-color: var(--typo); border-color: #ffc107 !important; }
.incomplete { background-color: var(--incomplete); border-color: #ffc107 !important; }

.feedback {
    min-height: 30px; margin-bottom: 15px; font-weight: bold; text-align: center;
}

/* --- BUTTONS (Jetzt fest in der Karte) --- */
.quiz-controls {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 10px;
    width: 100%;
}

.action-btn {
    width: 100%;
    padding: 18px; /* Große Touch-Fläche */
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.1s;
    text-align: center;
}

.action-btn:active { transform: scale(0.98); }

.primary {
    background-color: var(--primary);
    color: white;
    box-shadow: 0 4px 10px rgba(192, 57, 43, 0.3);
}

.danger {
    background-color: #fff;
    color: #7f8c8d;
    border: 2px solid #ecf0f1;
}

.action-btn:disabled { opacity: 0.5; box-shadow: none; }

/* Stats Footer */
.progress-container {
    position: fixed; bottom: 0; left: 0; right: 0;
    background: #fff; padding: 15px; border-top: 1px solid #eee;
    text-align: center; z-index: 99;
}
.progress-bar-bg { height: 8px; background: #eee; border-radius: 4px; overflow: hidden; margin-top: 5px; }
.progress-bar-fill { height: 100%; background: var(--primary); width: 0%; transition: width 0.3s; }