diff --git a/app/static/style.css b/app/static/style.css
new file mode 100644
index 0000000..d2e35a5
--- /dev/null
+++ b/app/static/style.css
@@ -0,0 +1,118 @@
+: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; }
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