:root {
    --primary: #8b0000; /* Dunkelrot */
    --bg: #fdf5e6;      /* Pergament */
    --correct: #d4edda;
    --wrong: #f8d7da;
    --typo: #fff3cd;
}

body {
    font-family: "Georgia", serif;
    background: var(--bg);
    margin: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
    width: 100%;
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

h1 { text-align: center; color: #444; border-bottom: 2px solid var(--primary); padding-bottom: 10px; }

/* Lesson Grid */
.lesson-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 10px;
    margin-bottom: 20px;
}
.lesson-item input { display: none; }
.lesson-item label {
    display: block;
    padding: 10px;
    background: #fff;
    border: 1px solid #ccc;
    text-align: center;
    cursor: pointer;
}
.lesson-item input:checked + label {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.options {
    text-align: center;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.card {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
    text-align: center;
    margin-bottom: 20px;
}

.question { font-size: 2.5rem; font-weight: bold; margin: 10px 0; }
.hint { font-style: italic; color: #666; margin-bottom: 20px; }

.input-row {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}
.lbl { width: 50px; font-weight: bold; color: #555; }
input[type="text"] {
    flex: 1;
    padding: 10px;
    font-size: 1.1rem;
    border: 2px solid #ddd;
    border-radius: 4px;
}

.correct { background-color: var(--correct); border-color: green !important; }
.wrong { background-color: var(--wrong); border-color: red !important; }
.typo { background-color: var(--typo); border-color: orange !important; }
.incomplete { background-color: #fff3cd; border-color: #ffc107 !important; }

.quiz-controls {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.action-btn {
    width: 100%;
    padding: 15px;
    font-size: 1.1rem;
    background: var(--primary);
    color: white;
    border: none;
    cursor: pointer;
    font-weight: bold;
    border-radius: 5px;
}
.danger { background: #555; }
.action-btn:disabled { opacity: 0.5; }

.progress-container {
    background: #fff;
    padding: 10px;
    text-align: center;
    position: fixed;
    bottom: 0; left: 0; right: 0;
}
.progress-bar-bg { height: 10px; background: #eee; width: 100%; margin-top: 5px; }
.progress-bar-fill { height: 100%; background: var(--primary); width: 0%; transition: width 0.3s; }