:root {
    --bg: #f6f7f9;
    --card: #fff;
    --border: #e1e4ea;
    --text: #1d2330;
    --muted: #6b7280;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
}
header {
    padding: 32px 24px 16px;
    max-width: 880px;
    margin: 0 auto;
}
header h1 { margin: 0 0 6px; font-size: 24px; }
header p { margin: 0; color: var(--muted); }
main { max-width: 880px; margin: 0 auto; padding: 16px 24px 64px; }
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 24px;
    margin-bottom: 24px;
}
.card h2 { font-size: 16px; margin: 24px 0 12px; }
.card h2:first-child { margin-top: 0; }
label {
    display: block;
    margin-bottom: 12px;
    font-size: 13px;
    color: var(--muted);
}
input, textarea {
    display: block;
    width: 100%;
    margin-top: 4px;
    padding: 8px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font: inherit;
    color: var(--text);
    background: #fff;
}
textarea { resize: vertical; }
input:focus, textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 600px) { .grid-2 { grid-template-columns: 1fr; } }

table.rows { width: 100%; border-collapse: collapse; margin-bottom: 8px; }
table.rows th { text-align: left; font-size: 12px; color: var(--muted); padding: 4px 6px; font-weight: 500; }
table.rows td { padding: 2px; }
table.rows td input { margin: 0; }
table.rows td.del { width: 32px; text-align: center; }
table.rows .del button {
    background: none; border: 0; cursor: pointer;
    color: var(--muted); font-size: 18px; padding: 0 6px;
}
button.add {
    background: none; border: 1px dashed var(--border); color: var(--muted);
    padding: 6px 12px; border-radius: 6px; cursor: pointer; font: inherit;
}
button.add:hover { background: var(--bg); color: var(--text); }

label.file {
    border: 1px dashed var(--border);
    padding: 16px;
    border-radius: 6px;
    display: block;
    text-align: center;
    color: var(--muted);
    cursor: pointer;
}
label.file input { display: none; }

.actions {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-top: 16px;
}
button[type=submit], #export {
    background: var(--accent);
    color: #fff;
    border: 0;
    padding: 10px 18px;
    border-radius: 6px;
    cursor: pointer;
    font: inherit;
    font-weight: 500;
}
button[type=submit]:hover, #export:hover { background: var(--accent-hover); }
button[type=submit]:disabled { opacity: 0.5; cursor: wait; }

.muted { color: var(--muted); font-size: 13px; }
.hidden { display: none; }

#preview { font-size: 14px; }
#preview h3 {
    font-size: 14px;
    margin: 18px 0 8px;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--border);
}
#preview h3:first-child { margin-top: 0; }
#preview [contenteditable] {
    border: 1px solid transparent;
    border-radius: 4px;
    padding: 6px 8px;
    background: #fafbfc;
    min-height: 24px;
    white-space: pre-wrap;
}
#preview [contenteditable]:focus { outline: none; border-color: var(--accent); background: #fff; }
#preview table { width: 100%; border-collapse: collapse; margin: 4px 0; }
#preview table th, #preview table td {
    border: 1px solid var(--border); padding: 6px 8px; text-align: left; vertical-align: top;
}
#preview table th { background: var(--bg); font-weight: 500; font-size: 12px; color: var(--muted); }
.error { color: #dc2626; }

.overview-header {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 12px;
}
.overview-header h2 { margin: 0; }
button.link {
    background: none; border: 0; color: var(--accent); cursor: pointer;
    font: inherit; padding: 0;
}
button.link:hover { text-decoration: underline; }

.overview-item {
    display: flex; align-items: center; gap: 12px;
    padding: 10px 12px; border: 1px solid var(--border); border-radius: 6px;
    margin-bottom: 6px; background: #fafbfc;
    transition: background 0.1s;
}
.overview-item:hover { background: #f0f3f7; }
.overview-item .meta { flex: 1; min-width: 0; }
.overview-item .title { font-weight: 500; color: var(--text); }
.overview-item .sub { font-size: 12px; color: var(--muted); margin-top: 2px; }
.overview-item .actions { display: flex; gap: 4px; }
.overview-item .actions button {
    background: none; border: 1px solid var(--border); padding: 4px 10px;
    border-radius: 4px; cursor: pointer; font: inherit; font-size: 13px;
    color: var(--text);
}
.overview-item .actions button:hover { background: var(--bg); }
.overview-item .actions button.danger { color: #dc2626; border-color: #fca5a5; }
.overview-item .actions button.danger:hover { background: #fef2f2; }
.overview-empty { color: var(--muted); font-size: 13px; padding: 8px 0; }

#modules { display: flex; flex-direction: column; gap: 8px; }
.module {
    border: 1px solid var(--border); border-radius: 6px; background: #fafbfc;
    transition: background 0.15s, border-color 0.15s;
}
.module.active { background: #fff; border-color: #c7d2fe; }
.module-toggle {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 12px; cursor: pointer; margin: 0; user-select: none;
    color: var(--text); font-size: 14px;
}
.module-toggle input { width: auto; margin: 0; }
.mod-label { flex: 1; font-weight: 500; }
.mod-pdfs { font-size: 12px; color: var(--accent); }
.module-detail {
    padding: 0 12px 12px 36px;
    border-top: 1px solid var(--border);
}
.sub-areas {
    display: flex; flex-wrap: wrap; gap: 6px 16px;
    padding: 10px 0;
}
.sub-area {
    display: flex; align-items: center; gap: 6px; margin: 0;
    color: var(--text); font-size: 13px; cursor: pointer;
}
.sub-area input { width: auto; margin: 0; }
.module-detail textarea { margin-top: 6px; }

.module-section {
    border-left: 3px solid var(--accent);
    padding: 8px 0 12px 12px;
    margin: 12px 0;
}
.module-section .mod-titel {
    font-weight: 600; font-size: 15px; color: var(--text);
    margin-bottom: 6px;
}