/*
 * Layout des Themes memorani (abgeleitet vom gemeinsamen Layout der Mathe-Site bzw. dem Kern-Theme „default“).
 * Geladen nach accents.css und vor theme.css des Themes. Farben, Schriften, Radien: tokens.css des Themes.
 * Abgeleitet vom Kern-Theme „default“.
 */

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

html { -webkit-text-size-adjust: 100%; scroll-padding-top: 5rem; }
body {
    margin: 0;
    font: 17px/1.7 var(--t-font);
    font-feature-settings: "cv11", "ss01";
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    /* Vollbreite Hintergründe (100vw) dürfen keinen horizontalen Scrollbalken erzeugen;
       clip statt hidden, damit die Kopfzeile sticky bleibt */
    overflow-x: clip;
}

::selection { background: var(--t-signal); color: var(--t-signal-ink); }

a { color: var(--t-signal); text-decoration-thickness: 1px; text-underline-offset: .2em; }
a:hover { color: var(--t-signal-strong); }
:focus-visible { outline: 2px solid var(--t-signal); outline-offset: 3px; border-radius: 3px; }

img { max-width: 100%; height: auto; }
/* Formularelemente erben die Schrift des Themes (Browser setzen sonst die Systemschrift) */
button, input, select, textarea { font: inherit; }

.container { width: min(100% - 2.5rem, var(--t-container)); margin-inline: auto; }

.skip-link { position: absolute; left: -9999px; top: .75rem; z-index: 100; padding: .5rem 1rem; background: var(--t-signal); color: var(--t-signal-ink); border-radius: 6px; font-weight: 600; }
.skip-link:focus { left: .75rem; }

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

/* ---------------------------------------------------------------- Kopfzeile */

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: var(--t-header-bg);
    backdrop-filter: saturate(140%) blur(14px);
    border-bottom: 1px solid var(--t-border);
}
.site-header__inner { display: flex; align-items: center; gap: 2rem; min-height: 4.25rem; }

.wordmark { display: inline-flex; align-items: center; gap: .6rem; font: var(--t-wordmark-weight, 700) var(--t-wordmark-size, 1.35rem)/1 var(--t-display); letter-spacing: var(--t-wordmark-tracking, -.02em); color: var(--t-heading); text-decoration: none; }
.wordmark:hover { color: var(--t-heading); }
/* Signet: mark.svg des Themes als Maske (nur die Deckkraft zählt; mask-image setzt theme.css wegen des relativen Pfads), Farbe = Signalfarbe */
.wordmark__mark { flex: none; width: 1.6em; height: 1.6em; background: var(--t-signal); mask: center / contain no-repeat; }

.site-nav { margin-left: auto; }
.site-nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: .25rem; }
.site-nav > ul > li { position: relative; }
.site-nav a { display: block; padding: .5rem .8rem; border-radius: 8px; color: var(--t-text); text-decoration: none; font-size: .95rem; font-weight: 500; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--t-heading); background: var(--t-surface); }
.site-nav a[aria-current="page"] { box-shadow: inset 0 -2px 0 var(--t-signal); }
.site-nav ul ul { display: none; position: absolute; top: 100%; left: 0; min-width: 14rem; padding: .4rem; background: var(--t-surface); border: 1px solid var(--t-border); border-radius: 10px; }
.site-nav li:hover > ul, .site-nav li:focus-within > ul { display: block; }
.site-nav--desktop > ul > li:last-child:not(:first-child) > a { margin-left: .5rem; padding-inline: 1.1rem; background: var(--t-signal); color: var(--t-signal-ink); border-radius: var(--t-button-radius, var(--t-radius)); box-shadow: none; }
.site-nav--desktop > ul > li:last-child:not(:first-child) > a:hover { background: var(--t-signal-strong); color: var(--t-signal-ink); }

.lang-switch { display: flex; gap: .25rem; font: 500 .8rem/1 var(--t-mono); }
.lang-switch a, .lang-switch span { padding: .4rem .5rem; border-radius: 6px; color: var(--t-muted); text-decoration: none; text-transform: uppercase; }
.lang-switch a:hover { color: var(--t-heading); background: var(--t-surface); }
.lang-switch [aria-current="true"] { color: var(--t-signal); }

/* Mobil: Menü per <details>, ohne JavaScript */
.nav-toggle { display: none; margin-left: auto; }
.nav-toggle summary { list-style: none; cursor: pointer; padding: .5rem .7rem; border: 1px solid var(--t-border); border-radius: 8px; font: 500 .85rem var(--t-mono); color: var(--t-heading); }
.nav-toggle summary::-webkit-details-marker { display: none; }

@media (max-width: 980px) {
    .site-nav--desktop { display: none; }
    .nav-toggle { display: block; }
    .nav-toggle[open] .site-nav { position: absolute; left: 0; right: 0; top: 100%; padding: 1rem 1.25rem 1.5rem; background: var(--t-bg-raised); border-bottom: 1px solid var(--t-border); }
    .nav-toggle .site-nav ul { flex-direction: column; }
    .nav-toggle .site-nav ul ul { display: block; position: static; border: 0; background: none; padding: 0 0 0 1rem; }
    .site-header .lang-switch { display: none; }
    .nav-toggle .lang-switch { display: flex; margin-top: 1rem; }
}

/* ---------------------------------------------------------------- Inhalt */

.site-main { flex: 1; }

/* Seiten-Layout nutzt .page aus blocks.css, mit mehr Luft */
.page { padding-top: 3.5rem; padding-bottom: 5rem; }
.page__lead { font-size: 1.2rem; color: var(--t-muted); margin: 0 0 2rem; }

/* Breadcrumbs */
.breadcrumbs { font: 500 .78rem/1.4 var(--t-mono); color: var(--t-muted); margin: 0 0 1.5rem; }
.breadcrumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: .4rem; margin: 0; padding: 0; }
.breadcrumbs li + li::before { content: "/"; margin-right: .4rem; color: var(--t-border-strong); }
.breadcrumbs a { color: var(--t-muted); text-decoration: none; }
.breadcrumbs a:hover { color: var(--t-signal); }

/* Beitragskopf */
.post-meta { display: flex; flex-wrap: wrap; gap: .4rem 1.25rem; font: 500 .82rem/1.5 var(--t-mono); color: var(--t-muted); margin: 0 0 2.5rem; padding-bottom: 1.5rem; border-bottom: 1px solid var(--t-border); }
.post-meta a { color: var(--t-text); text-decoration: none; }
.post-meta a:hover { color: var(--t-signal); }
.post-tags { display: flex; flex-wrap: wrap; gap: .5rem; margin: 3rem 0 0; padding: 0; list-style: none; }
.post-tags a { display: inline-block; padding: .25rem .65rem; border: 1px solid var(--t-border); border-radius: 999px; font: 500 .78rem var(--t-mono); color: var(--t-muted); text-decoration: none; }
.post-tags a:hover { border-color: var(--t-signal); color: var(--t-signal); }

/* Beitragsbild */
.post-image { margin: 0 0 2.5rem; }
.post-image img { display: block; width: 100%; height: auto; border-radius: var(--t-radius); }

/* Autorenbox (E-E-A-T) */
.author-box { margin: 3rem 0 0; padding: 1.25rem 1.5rem; background: var(--t-surface); border: 1px solid var(--t-border); border-radius: var(--t-radius); }
.author-box__name { margin: 0; font: 600 1rem var(--t-display); color: var(--t-heading); }
.author-box p { margin: .3rem 0 0; color: var(--t-muted); font-size: .95rem; }

/* ---------------------------------------------------------------- Archive */

.archive-header { padding: 3.5rem 0 1rem; }
.archive-header__label { font: 500 .8rem var(--t-mono); color: var(--t-signal); text-transform: uppercase; letter-spacing: .08em; margin: 0 0 .75rem; }
.archive-header__description { color: var(--t-muted); max-width: 60ch; font-size: 1.1rem; }

.post-grid { list-style: none; margin: 2rem 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.25rem; }
@media (max-width: 960px) { .post-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .post-grid { grid-template-columns: 1fr; } }
.post-card { position: relative; display: flex; flex-direction: column; gap: .6rem; padding: 1.5rem; background: var(--t-surface); border: 1px solid var(--t-border); border-radius: var(--t-radius); transition: border-color .2s, transform .2s; }
.post-card:hover { border-color: var(--t-signal); transform: translateY(-2px); }
.post-card > picture { display: block; margin: -1.5rem -1.5rem .5rem; }
.post-card__image { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; border-radius: var(--t-radius) var(--t-radius) 0 0; }
.post-card time { font: 500 .78rem var(--t-mono); color: var(--t-muted); }
.post-card__title { margin: 0; font: 650 1.25rem/1.25 var(--t-display); letter-spacing: -.015em; }
.post-card__title a { color: var(--t-heading); text-decoration: none; }
.post-card__title a::after { content: ""; position: absolute; inset: 0; } /* ganze Karte klickbar */
.post-card p { margin: 0; color: var(--t-muted); font-size: .95rem; }

.pagination { display: flex; justify-content: space-between; gap: 1rem; margin: 3rem 0 5rem; font: 500 .9rem var(--t-mono); }
.pagination a { padding: .6rem 1rem; border: 1px solid var(--t-border); border-radius: 8px; text-decoration: none; color: var(--t-text); }
.pagination a:hover { border-color: var(--t-signal); color: var(--t-signal); }

/* Fehlerseiten */
.error-page { padding: 6rem 0; }
.error-page__code { font: 700 clamp(5rem, 18vw, 11rem)/.9 var(--t-display); letter-spacing: -.06em; margin: 0; background: linear-gradient(120deg, var(--t-heading), var(--t-signal)); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---------------------------------------------------------------- Fußzeile */

.site-footer { border-top: 1px solid var(--t-border); background: var(--t-bg-raised); overflow: hidden; }
.site-footer__grid { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; padding: 3.5rem 0 2rem; }
.site-footer__tagline { color: var(--t-muted); max-width: 42ch; margin: .75rem 0 0; }
.site-footer nav ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .4rem; }
.site-footer nav a { color: var(--t-text); text-decoration: none; }
.site-footer nav a:hover { color: var(--t-signal); }
.site-footer__bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; padding: 1.25rem 0 2rem; border-top: 1px solid var(--t-border); font: 500 .78rem var(--t-mono); color: var(--t-muted); }
.site-footer__contract { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; }
.site-footer__cancel { color: inherit; font: 600 .9rem var(--t-font); text-decoration: underline; text-underline-offset: .2em; }

@media (max-width: 700px) {
    .site-footer__grid { grid-template-columns: 1fr; }
}

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

/* ---------------------------------------------------------------------------------------
 * Hintergründe (theme.json: "backdrops"), je Inhalt im Editor wählbar.
 * Raster im oberen Seitenbereich, das nach unten ausläuft, damit Fließtext ruhig bleibt.
 */
body.backdrop { position: relative; isolation: isolate; }
body.backdrop::before {
    content: "";
    position: absolute;
    inset: 0 0 auto;
    height: min(1100px, 100%);
    z-index: -1;
    pointer-events: none;
    background:
        radial-gradient(70rem 32rem at 20% 0%, var(--backdrop-glow), transparent 70%),
        linear-gradient(var(--backdrop-line) 1px, transparent 1px) 0 0 / 56px 56px,
        linear-gradient(90deg, var(--backdrop-line) 1px, transparent 1px) 0 0 / 56px 56px;
    mask-image: linear-gradient(180deg, #000 0, rgb(0 0 0 / 70%) 45%, transparent 100%);
}
.backdrop--grid { --backdrop-line: var(--t-grid-line); --backdrop-glow: var(--t-signal-glow); }
.backdrop--none::before { content: none; }
.archive-header__links { list-style: none; display: flex; flex-wrap: wrap; gap: .5rem 1.25rem; margin: 1rem 0 0; padding: 0; font: 500 .85rem var(--t-mono); }

/* ---------------------------------------------------------------------------------------
 * Blöcke im Seitenlayout (gilt nicht im Editor-Canvas; Akzente der Blöcke: accents.css)
 */

/* Hero auf Containerbreite (bündig mit Wortmarke und Menü); ohne Bild Platz für die Theme-Grafik rechts */
.page > .blk-hero:first-child { margin-top: -1.5rem; }
.blk-hero { position: relative; isolation: isolate; margin-inline: calc(50% - min(50vw - var(--blk-gutter), var(--t-container) / 2)); }
.blk-hero:not(.blk-hero--image) { grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); }
.blk-hero:not(.blk-hero--image)::after { content: none; }
@media (max-width: 860px) {
    .blk-hero:not(.blk-hero--image) { grid-template-columns: 1fr; }
}