/* Navendo – responsives, mobile-first Stylesheet (ersetzt public/_media/css/*)
   Breakpoints: 640px (Tablet), 900px (Desktop). Design-Tokens unter :root, damit
   Farben/Abstände zentral änderbar und 1:1 in ein Flutter-Theme übertragbar sind. */

:root {
    --c-primary: #98121a;
    --c-primary-dark: #740d14;
    --c-primary-soft: #fbeeee;
    --c-bg: #f4f4f6;
    --c-surface: #ffffff;
    --c-text: #22252a;
    --c-muted: #646a73;
    --c-border: #dcdee3;
    --c-success: #1d7a3a;
    --c-success-soft: #e6f4ea;
    --c-warning-soft: #fff4d6;
    --c-danger: #b3261e;
    --c-danger-soft: #fdecea;
    --radius: 10px;
    --shadow: 0 1px 2px rgba(0, 0, 0, .06), 0 2px 8px rgba(0, 0, 0, .05);
    --gap: 1rem;
    --tap: 44px; /* Mindestgröße für Touch-Ziele */
    --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
    :root {
        --c-primary: #e0525a;
        --c-primary-dark: #c43d45;
        --c-primary-soft: #3a1c1e;
        --c-bg: #15171a;
        --c-surface: #1f2226;
        --c-text: #eceef1;
        --c-muted: #9aa0a9;
        --c-border: #343840;
        --c-success: #5cc57f;
        --c-success-soft: #173323;
        --c-warning-soft: #3a3118;
        --c-danger: #f2877f;
        --c-danger-soft: #3b1d1b;
        --shadow: none;
    }
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    font: 1rem/1.55 var(--font);
    color: var(--c-text);
    background: var(--c-bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

img, svg, video { max-width: 100%; height: auto; }
a { color: var(--c-primary); }
a:hover { color: var(--c-primary-dark); }
h1, h2, h3 { line-height: 1.25; margin: 0 0 .6em; }
h1 { font-size: 1.6rem; }
h2 { font-size: 1.25rem; }
h3 { font-size: 1.05rem; }
p { margin: 0 0 1em; }

:focus-visible { outline: 3px solid var(--c-primary); outline-offset: 2px; }

.skip-link {
    position: absolute; left: -999px; top: 0; z-index: 100;
    background: var(--c-primary); color: #fff; padding: .6rem 1rem;
}
.skip-link:focus { left: 0; }

.visually-hidden {
    position: absolute !important; width: 1px; height: 1px; overflow: hidden;
    clip: rect(0 0 0 0); white-space: nowrap;
}

/* ---------- Header & Navigation ---------- */

.site-header {
    background: var(--c-surface);
    border-bottom: 1px solid var(--c-border);
    position: sticky; top: 0; z-index: 50;
}
.site-header__inner {
    max-width: 1100px; margin: 0 auto; padding: .5rem 1rem;
    display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.brand { display: flex; align-items: center; line-height: 0; }
.brand img { height: 40px; width: auto; }

.nav-toggle {
    min-width: var(--tap); min-height: var(--tap);
    background: none; border: 1px solid var(--c-border); border-radius: var(--radius);
    color: var(--c-text); font: inherit; cursor: pointer;
}

.site-nav { display: none; width: 100%; }
.site-nav.is-open { display: block; }
.site-nav ul { list-style: none; margin: 0; padding: 0; }
.site-nav a {
    display: flex; align-items: center; min-height: var(--tap);
    padding: 0 .75rem; border-radius: var(--radius);
    color: var(--c-text); text-decoration: none; font-weight: 500;
}
.site-nav a:hover { background: var(--c-primary-soft); }
.site-nav a[aria-current="page"] { color: var(--c-primary); background: var(--c-primary-soft); }
.site-nav .nav-cta { background: var(--c-primary); color: #fff; justify-content: center; margin-top: .25rem; }
.site-nav .nav-cta:hover { background: var(--c-primary-dark); color: #fff; }

/* Auf Mobilgeräten klappt das Menü unter die Kopfzeile */
.site-header__inner { flex-wrap: wrap; }

@media (min-width: 900px) {
    .nav-toggle { display: none; }
    .site-nav, .site-nav.is-open { display: block; width: auto; }
    .site-nav ul { display: flex; align-items: center; gap: .25rem; }
    .site-nav .nav-cta { margin: 0 0 0 .5rem; }
}

/* ---------- Seitenaufbau ---------- */

.container { width: 100%; max-width: 1100px; margin: 0 auto; padding: 1.25rem 1rem; flex: 1; }

.layout { display: grid; gap: var(--gap); }
@media (min-width: 900px) {
    .layout--aside { grid-template-columns: minmax(0, 1fr) 300px; align-items: start; }
}

.page-title { margin-bottom: .25rem; }
.page-subtitle { color: var(--c-muted); margin-bottom: 1.25rem; }

.card {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.1rem;
    margin-bottom: var(--gap);
}
.card > :last-child { margin-bottom: 0; }
.card__title { margin-bottom: .5rem; }
.card--accent { border-left: 5px solid var(--c-primary); }

.site-footer {
    background: var(--c-surface); border-top: 1px solid var(--c-border);
    padding: 1rem; text-align: center; font-size: .9rem; color: var(--c-muted);
}
.site-footer a { display: inline-block; padding: .5rem .6rem; }

/* ---------- Buttons ---------- */

.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
    min-height: var(--tap); padding: 0 1.2rem;
    border: 1px solid var(--c-border); border-radius: var(--radius);
    background: var(--c-surface); color: var(--c-text);
    font: inherit; font-weight: 600; text-decoration: none; cursor: pointer;
}
.btn:hover { background: var(--c-primary-soft); color: var(--c-text); }
.btn--primary { background: var(--c-primary); border-color: var(--c-primary); color: #fff; }
.btn--primary:hover { background: var(--c-primary-dark); border-color: var(--c-primary-dark); color: #fff; }
.btn--danger { color: var(--c-danger); border-color: var(--c-danger); }
.btn--danger:hover { background: var(--c-danger-soft); color: var(--c-danger); }
.btn--sm { min-height: 36px; padding: 0 .8rem; font-size: .9rem; }
.btn--block { width: 100%; }

.btn-row { display: flex; flex-wrap: wrap; gap: .6rem; align-items: center; }

/* ---------- Formulare ---------- */

.field { margin-bottom: 1rem; }
.field label, .field .label { display: block; font-weight: 600; margin-bottom: .3rem; }
.field .hint { font-size: .875rem; color: var(--c-muted); margin-top: .25rem; }

input[type="text"], input[type="email"], input[type="password"], input[type="search"],
input[type="number"], select, textarea {
    width: 100%; min-height: var(--tap); padding: .5rem .75rem;
    font: inherit; /* >=16px verhindert Auto-Zoom auf iOS */
    color: var(--c-text); background: var(--c-surface);
    border: 1px solid var(--c-border); border-radius: var(--radius);
}
textarea { min-height: 7rem; resize: vertical; }
input[type="checkbox"], input[type="radio"] { width: 1.25rem; height: 1.25rem; accent-color: var(--c-primary); flex: none; }

.check { display: flex; gap: .6rem; align-items: flex-start; min-height: var(--tap); padding: .4rem 0; }

.form-grid { display: grid; gap: 0 1rem; }
@media (min-width: 640px) { .form-grid--2 { grid-template-columns: 1fr 1fr; } }

.inline-form { display: flex; flex-wrap: wrap; gap: .6rem; align-items: end; }
.inline-form .field { margin: 0; flex: 1 1 180px; }

/* ---------- Meldungen ---------- */

.alert { padding: .8rem 1rem; border-radius: var(--radius); margin-bottom: var(--gap); border: 1px solid transparent; }
.alert--success { background: var(--c-success-soft); border-color: var(--c-success); }
.alert--error, .alert--danger { background: var(--c-danger-soft); border-color: var(--c-danger); }
.alert--warning { background: var(--c-warning-soft); }
.alert--info { background: var(--c-primary-soft); }

/* ---------- Kennzahlen ---------- */

.stats { display: grid; gap: var(--gap); grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); margin-bottom: var(--gap); }
.stat { background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius); padding: 1rem; text-align: center; }
.stat__value { display: block; font-size: 2rem; font-weight: 700; color: var(--c-primary); line-height: 1.1; }
.stat__label { color: var(--c-muted); font-size: .9rem; }

/* ---------- Tabellen: auf Mobilgeräten als gestapelte Karten ---------- */

.table { width: 100%; border-collapse: collapse; }
.table th, .table td { text-align: left; padding: .65rem .5rem; border-bottom: 1px solid var(--c-border); vertical-align: middle; }
.table th { font-size: .85rem; color: var(--c-muted); text-transform: uppercase; letter-spacing: .03em; }

@media (max-width: 639px) {
    .table thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
    .table, .table tbody, .table tr, .table td { display: block; width: 100%; }
    .table tr { border: 1px solid var(--c-border); border-radius: var(--radius); margin-bottom: .75rem; padding: .4rem .75rem; background: var(--c-surface); }
    .table td { border: 0; padding: .35rem 0; display: flex; justify-content: space-between; gap: 1rem; text-align: right; }
    .table td::before { content: attr(data-label); font-weight: 600; color: var(--c-muted); text-align: left; }
    .table td[data-label=""]::before, .table td:not([data-label])::before { content: none; }
}

/* ---------- Teaser / Raster / Chips ---------- */

.teaser-grid { display: grid; gap: var(--gap); grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
.teaser { display: block; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius); overflow: hidden; text-decoration: none; color: var(--c-text); }
.teaser img { display: block; width: 100%; aspect-ratio: 196 / 106; object-fit: cover; }
.teaser__label { display: block; padding: .7rem .9rem; font-weight: 600; }
.teaser:hover { box-shadow: var(--shadow); border-color: var(--c-primary); }

.subnav { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: var(--gap); }
.subnav a { padding: .5rem .9rem; min-height: 40px; display: inline-flex; align-items: center; border: 1px solid var(--c-border); border-radius: 999px; text-decoration: none; background: var(--c-surface); }
.subnav a[aria-current="page"] { background: var(--c-primary); border-color: var(--c-primary); color: #fff; }

.hero { text-align: center; padding: 1.5rem 0 1rem; }
.hero img { max-width: 570px; width: 100%; }

.media-row { display: grid; gap: 1rem; }
@media (min-width: 640px) { .media-row { grid-template-columns: 150px 1fr; } }
.media-row img { border-radius: var(--radius); width: 100%; max-width: 150px; height: auto; }

.checklist { list-style: none; margin: 0 0 1em; padding: 0; }
.checklist li { padding-left: 1.4em; position: relative; margin-bottom: .3rem; }
.checklist li::before { content: "✓"; position: absolute; left: 0; color: var(--c-primary); font-weight: 700; }

.prose { max-width: 70ch; }
.prose img { border-radius: var(--radius); }
blockquote.quote { margin: 0 0 1rem; padding: .5rem 1rem; border-left: 4px solid var(--c-primary); color: var(--c-muted); font-style: italic; }

.progress { height: 10px; border-radius: 999px; background: var(--c-border); overflow: hidden; }
.progress__bar { height: 100%; background: var(--c-primary); width: 0; }

.muted { color: var(--c-muted); }
.text-right { text-align: right; }
.stack > * + * { margin-top: var(--gap); }

@media print {
    .site-header, .site-footer, .btn, .nav-toggle { display: none !important; }
    body { background: #fff; color: #000; }
}

@media (prefers-reduced-motion: reduce) {
    * { animation: none !important; transition: none !important; }
}

/* ---------- Anwendungsbeispiele (about_beispiel_*) ---------- */
.example .fb_h7 { font-size: 1.2rem; font-weight: 700; color: var(--c-primary); margin: 1.5rem 0 .4rem; }
.example .fb_h7:first-child { margin-top: 0; font-size: 1.5rem; }
.example .fb_content { margin-bottom: .75rem; }
.example .fb_zitat > div { border-bottom: 1px dotted var(--c-border) !important; font-style: italic; color: var(--c-muted); margin-bottom: .75rem; }

/* Lange URLs/Wörter (z. B. im Impressum) dürfen umbrechen statt die Seite zu verbreitern */
.card, .prose { overflow-wrap: anywhere; }

/* ---------- Abfrage ---------- */
.query-head { margin-bottom: 1rem; }
.query-card { min-height: 220px; }
.query-question { font-size: 1.4rem; font-weight: 600; line-height: 1.4; margin-bottom: 1rem; }
.query-image { display: block; margin: 0 auto 1rem; border-radius: var(--radius); }
.query-answer > summary { list-style: none; cursor: pointer; display: inline-flex; }
.query-answer > summary::-webkit-details-marker { display: none; }
.query-answer[open] > summary { margin-bottom: .75rem; }
.query-answer__text { font-size: 1.25rem; padding: .9rem 1rem; border-radius: var(--radius); background: var(--c-primary-soft); }
.query-actions { margin-top: .5rem; align-items: flex-end; }
.query-actions form { margin: 0; }

.rating { border: 0; padding: 0; margin: 0 0 1rem; }
.rating legend { font-weight: 700; margin-bottom: .4rem; padding: 0; }
.rating__option {
    display: flex; align-items: center; gap: .6rem; min-height: var(--tap); padding: .35rem .75rem; margin-bottom: .4rem;
    border: 1px solid var(--c-border); border-radius: var(--radius); background: var(--c-surface); cursor: pointer;
}
.rating__option:has(input:checked) { border-color: var(--c-primary); background: var(--c-primary-soft); font-weight: 600; }

/* ---------- Abo-Status ---------- */
.status { display: inline-block; padding: .15rem .6rem; border-radius: 999px; font-size: .85rem; font-weight: 600; border: 1px solid var(--c-border); }
.status--active { background: var(--c-success-soft); border-color: var(--c-success); color: var(--c-success); }
.status--paused { background: var(--c-warning-soft); }
.status--stopped { background: var(--c-danger-soft); border-color: var(--c-danger); color: var(--c-danger); }

/* ---------- Auswertung (Diagramm ohne JavaScript) ---------- */
:root { --c-short: #bebebe; --c-medium: #ffbd21; --c-long: var(--c-primary); }
@media (prefers-color-scheme: dark) { :root { --c-short: #7a7f87; } }
.dot { display: inline-block; width: .8em; height: .8em; border-radius: 50%; margin-right: .3em; vertical-align: baseline; }
.dot--short { background: var(--c-short); }
.dot--medium { background: var(--c-medium); }
.dot--long { background: var(--c-long); }

.chart { display: flex; align-items: flex-end; gap: .5rem; height: 260px; padding-top: 1.2rem; margin-bottom: .75rem; }
.chart__col { flex: 1 1 0; min-width: 0; height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; }
.chart__stack { width: 100%; max-width: 56px; flex: 1 1 auto; display: flex; flex-direction: column; justify-content: flex-end; }
.seg { width: 100%; min-height: 0; }
.seg--short { background: var(--c-short); }
.seg--medium { background: var(--c-medium); }
.seg--long { background: var(--c-long); }
.chart__total { font-size: .8rem; font-weight: 700; margin-bottom: .2rem; }
.chart__label { font-size: .75rem; color: var(--c-muted); margin-top: .3rem; white-space: nowrap; }
@media (max-width: 480px) { .chart { gap: .25rem; } .chart__label { font-size: .65rem; } }

.legend { list-style: none; padding: 0; margin: 0 0 1rem; display: flex; flex-wrap: wrap; gap: .25rem 1.25rem; font-size: .9rem; }
.plain-list { list-style: none; padding: 0; margin: 0; }
.plain-list li { padding: .4rem 0; border-bottom: 1px solid var(--c-border); }
.plain-list li:last-child { border-bottom: 0; }

/* ---------- Editor ---------- */
.element-summary { display: flex; justify-content: space-between; gap: 1rem; cursor: pointer; font-weight: 600; list-style: none; }
.element-summary::-webkit-details-marker { display: none; }
.element-summary::before { content: "▸"; margin-right: .5rem; color: var(--c-primary); }
details[open] > .element-summary::before { content: "▾"; }
.element-summary__text { flex: 1 1 auto; min-width: 0; }

/* ---------- Rechtschreib-Abfrage ---------- */
.spell { display: flex; flex-wrap: wrap; gap: .6rem 1.1rem; margin: .5rem 0 1rem; }
.spell__word { display: inline-flex; gap: 3px; }
input[type="text"].spell__box {
    width: 2.1rem; min-width: 0; height: 2.6rem; padding: 0; text-align: center;
    font: inherit; font-size: 1.15rem; /* >= 16px verhindert Auto-Zoom auf iOS */ font-weight: 600;
    border: 1px solid var(--c-border); border-radius: 6px; background: var(--c-surface); color: var(--c-text);
}
input[type="text"].spell__box:focus { border-color: var(--c-primary); outline: 2px solid var(--c-primary); outline-offset: 0; }
input[type="text"].spell__box.is-ok { border-color: var(--c-success); background: var(--c-success-soft); }
input[type="text"].spell__box.is-bad { border-color: var(--c-danger); background: var(--c-danger-soft); }
@media (max-width: 400px) { input[type="text"].spell__box { width: 1.85rem; height: 2.4rem; } }

/* Wiederholungs-Runde: Liste der besonders schwierigen Elemente */
.review-list { display: grid; gap: .75rem; margin: .75rem 0 1rem; }
.review-item { border: 1px solid var(--border, #d8dde3); border-radius: var(--radius, 8px); padding: .75rem 1rem; }
.review-item p { margin: .25rem 0; }

/* Multiple Choice */
.choices { border: 0; padding: 0; margin: .75rem 0; display: grid; gap: .5rem; }
.choices__option { display: flex; gap: .6rem; align-items: flex-start; padding: .6rem .8rem; border: 1px solid var(--border, #d8dde3); border-radius: var(--radius, 8px); cursor: pointer; }
.choices__option.is-ok { border-color: #2e7d32; background: rgba(46, 125, 50, .12); }
.choices__option.is-bad { border-color: #c62828; background: rgba(198, 40, 40, .12); }

/* Geräteliste im Profil */
.device-list { list-style: none; padding: 0; margin: .5rem 0 1rem; display: grid; gap: .5rem; }
.device-list li { display: flex; justify-content: space-between; gap: 1rem; align-items: center; border: 1px solid var(--border, #d8dde3); border-radius: var(--radius, 8px); padding: .6rem .8rem; }

/* Zwei-Faktor */
.recovery-codes { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr)); gap: .5rem; margin: 1rem 0; }
.recovery-codes code, code.secret { font-size: 1.05rem; letter-spacing: .06em; }
code.secret { display: inline-block; margin-top: .4rem; word-break: break-all; }
/* QR-Code der Zwei-Faktor-Einrichtung: heller Grund auch im dunklen Modus, sonst lässt er sich nicht scannen */
.qr { display: inline-block; margin-top: .5rem; padding: .5rem; background: #fff; border-radius: var(--radius); line-height: 0; }
.qr svg { width: min(15rem, 70vw); height: auto; }