:root {
    --bg: #f4f5f7;
    --card: #ffffff;
    --ink: #1f2430;
    --muted: #6b7280;
    --accent: #2f6f4f;
    --accent-ink: #ffffff;
    --border: #e2e5ea;
    --danger: #b3261e;
    --ok: #2f6f4f;
}

* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
    background: var(--bg);
    color: var(--ink);
}

a { color: var(--accent); }

.topbar {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--card);
    border-bottom: 1px solid var(--border);
}
.topbar .brand { font-weight: 700; text-decoration: none; color: var(--ink); }
.topbar nav { display: flex; gap: 1rem; }
.topbar nav a { text-decoration: none; }
.topbar .logout { margin-left: auto; display: flex; align-items: center; gap: 0.6rem; }
.topbar .logout span { color: var(--muted); font-size: 0.9rem; }

.container { max-width: 960px; margin: 2rem auto; padding: 0 1.5rem; }

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.25rem;
}

.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
@media (max-width: 720px) { .grid { grid-template-columns: 1fr; } }

.muted { color: var(--muted); }
h1 { margin-top: 0; }

.modules { list-style: none; padding: 0; }
.modules li { padding: 0.5rem 0; border-bottom: 1px solid var(--border); }
.modules li.disabled { color: var(--muted); }
.modules em { color: var(--muted); font-style: normal; font-size: 0.85rem; }

.page-head, .form-actions { display: flex; align-items: center; gap: 1rem; }
.page-head { justify-content: space-between; }

.btn, button {
    background: var(--accent);
    color: var(--accent-ink);
    border: 0;
    border-radius: 8px;
    padding: 0.55rem 1rem;
    font-size: 0.95rem;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}
.btn.ghost, .btn.ghost:hover { background: transparent; color: var(--ink); border: 1px solid var(--border); }
button.link { background: none; color: var(--danger); padding: 0; }

.table { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.table th, .table td { text-align: left; padding: 0.7rem 0.9rem; border-bottom: 1px solid var(--border); vertical-align: top; }
.table thead th { background: #fafbfc; font-size: 0.85rem; color: var(--muted); }
.actions { display: flex; gap: 0.75rem; align-items: center; }

.badge { font-size: 0.75rem; padding: 0.15rem 0.5rem; border-radius: 999px; }
.badge.ok { background: #e3f2ea; color: var(--ok); }
.badge.off { background: #f2e3e3; color: var(--danger); }

.alert { padding: 0.7rem 1rem; border-radius: 8px; margin: 0 0 1rem; }
.alert.ok { background: #e3f2ea; color: var(--ok); }
.alert.error { background: #f7e1df; color: var(--danger); }

.form label, .form fieldset { display: block; margin-bottom: 1rem; }
.form input[type=text], .form input[type=email], .form input[type=password],
.form input[type=date], .form input[type=number] {
    display: block; width: 100%; margin-top: 0.3rem;
    padding: 0.55rem 0.7rem; border: 1px solid var(--border); border-radius: 8px; font-size: 1rem;
}
.form fieldset { border: 1px solid var(--border); border-radius: 8px; padding: 0.75rem 1rem; }
.form .check { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.4rem; font-weight: normal; }
.form .check input { width: auto; }

.login-page { display: grid; place-items: center; min-height: 100vh; }
.card.login { width: min(360px, 92vw); }
.card.login label { display: block; margin-bottom: 1rem; }
.card.login input { display: block; width: 100%; margin-top: 0.3rem; padding: 0.55rem 0.7rem; border: 1px solid var(--border); border-radius: 8px; }
.card.login button { width: 100%; }

code { background: #eef0f3; padding: 0.1rem 0.35rem; border-radius: 4px; }

.form select, .form textarea {
    display: block; width: 100%; margin-top: 0.3rem;
    padding: 0.55rem 0.7rem; border: 1px solid var(--border); border-radius: 8px; font-size: 1rem;
    font-family: inherit;
}
.form input[type=file] { display: block; margin-top: 0.3rem; width: 100%; color: var(--ink); }
.detail { margin: 0; }
.detail dt { color: var(--muted); font-size: 0.8rem; margin-top: 0.8rem; }
.detail dt:first-child { margin-top: 0; }
.detail dd { margin: 0.15rem 0 0; font-size: 1.05rem; word-break: break-word; }

.prose { line-height: 1.6; word-break: break-word; }
.alert-inline { color: var(--danger); font-weight: 600; }

/* ===== Theme: Dunkelmodus ===== */
html[data-theme="dark"] {
    --bg: #14171c; --card: #1e232b; --ink: #e6e8ec; --muted: #9aa3b0;
    --accent: #4a9c74; --accent-ink: #ffffff; --border: #2b323c; --danger: #e06b63; --ok: #5bbd8b;
}
html[data-theme="dark"] .table thead th { background: #232a33; }
html[data-theme="dark"] code { background: #232a33; }
html[data-theme="dark"] .badge.ok, html[data-theme="dark"] .alert.ok { background: #1c3a2b; }
html[data-theme="dark"] .badge.off, html[data-theme="dark"] .alert.error { background: #3a2222; }

/* ===== Kopfzeile / Navigation ===== */
.topbar { flex-wrap: wrap; }
.mainnav { display: flex; gap: 1rem; align-items: center; }
.mainnav a { text-decoration: none; }
.topbar-actions { margin-left: auto; display: flex; align-items: center; gap: 0.6rem; }
.topbar-actions .logout { margin-left: 0; }
.icon-btn, .nav-toggle {
    background: transparent; border: 1px solid var(--border); color: var(--ink);
    border-radius: 8px; padding: 0.4rem; line-height: 0; cursor: pointer;
}
.icon-btn svg { width: 20px; height: 20px; display: block; }
.nav-toggle { display: none; }
.nav-toggle svg { width: 22px; height: 22px; display: block; }
.icon-sun { display: none; }
html[data-theme="dark"] .icon-sun { display: inline; }
html[data-theme="dark"] .icon-moon { display: none; }

@media (max-width: 720px) {
    .brand { order: 1; }
    .topbar-actions { order: 2; }
    .nav-toggle { display: inline-flex; order: 3; }
    .mainnav {
        order: 4; flex-basis: 100%; display: none;
        flex-direction: column; align-items: stretch; gap: 0; padding-top: 0.5rem;
    }
    .topbar.open .mainnav { display: flex; }
    .mainnav a { display: block; width: 100%; padding: 0.6rem 0.2rem; border-bottom: 1px solid var(--border); }
}

/* Theme-Umschalter auf Standalone-Seiten (Login) oben rechts */
.theme-floating { position: fixed; top: 1rem; right: 1rem; z-index: 10; }
.login-links { text-align: center; margin-top: 1rem; }
.login-links a { color: var(--muted); font-size: 0.9rem; }