/**
 * base.css — Body-Reset + Header/Footer-Layout der Frontend-Pages.
 * Erweitert mit den Variant-Skeletten in Tasks 19-21.
 */

* { box-sizing: border-box; }

html, body {
    background: var(--bg);
    color: var(--ink);
    font-family: var(--sans);
    margin: 0;
    min-height: 100vh;
}

/* Sichtbarer Focus-Ring für Tastaturnavigation (WCAG 2.4.7).
   :focus-visible greift nur bei Tastatur-Fokus, nicht bei Maus-Click — das
   verhindert das Anti-Pattern, dass Click-Buttons einen permanenten Ring zeigen. */
:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-radius: 3px;
}

/* Skip-Link für Tastaturnutzer + Screenreader (WCAG 2.4.1 Bypass Blocks).
   Visuell versteckt, aber bei :focus sichtbar — der erste Tab-Stopp jeder Page. */
.skip-link {
    position: absolute;
    top: -100px;
    left: 8px;
    background: var(--accent);
    color: white;
    padding: 8px 14px;
    border-radius: 6px;
    font-family: var(--mono);
    font-size: 12px;
    text-decoration: none;
    z-index: 1000;
    transition: top 0.15s;
}
.skip-link:focus {
    top: 8px;
    outline: 3px solid var(--ink);
}

body {
    font-feature-settings: 'ss01', 'cv11';
    -webkit-font-smoothing: antialiased;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
    padding: 32px 24px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Header ---------- */

.site-header {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 16px 28px;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
}

.site-header .brand {
    font-family: var(--serif);
    font-size: 20px;
    color: var(--ink);
    letter-spacing: -0.01em;
}

.site-header nav {
    display: flex;
    gap: 18px;
    margin-left: auto;
    font-family: var(--mono);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.site-header nav a {
    color: var(--ink-soft);
    padding: 4px 8px;
    border-radius: 6px;
}

.site-header nav a:hover {
    color: var(--ink);
    background: var(--bg);
    text-decoration: none;
}

/* ---------- Footer ---------- */

.site-footer {
    padding: 24px 28px;
    background: var(--surface);
    border-top: 1px solid var(--line);
    font-family: var(--mono);
    font-size: 11.5px;
    color: var(--ink-soft);
    letter-spacing: 0.03em;
}

.site-footer .footer-inner {
    display: flex;
    align-items: center;
    gap: 16px;
    max-width: 1280px;
    margin: 0 auto;
}

.site-footer .footer-inner > :last-child {
    margin-left: auto;
}

.site-footer a {
    color: var(--ink-soft);
}

.site-footer a:hover {
    color: var(--ink);
    text-decoration: underline;
}

/* ---------- Generic page article (Datenschutz etc.) ---------- */

.privacy-page {
    max-width: 760px;
    margin: 0 auto;
    padding: 24px 0;
    font-size: 15px;
    line-height: 1.65;
    color: var(--ink);
}

.privacy-page h1 {
    font-family: var(--serif);
    font-weight: 400;
    font-size: 36px;
    line-height: 1.1;
    margin: 0 0 24px;
    letter-spacing: -0.01em;
}

.privacy-page h2 {
    font-family: var(--serif);
    font-weight: 400;
    font-size: 22px;
    margin: 32px 0 12px;
}

.privacy-page h3 {
    font-family: var(--sans);
    font-weight: 600;
    font-size: 15px;
    margin: 22px 0 8px;
    color: var(--ink);
}

.privacy-page p { margin: 0 0 14px; }
.privacy-page ul { margin: 0 0 14px 22px; padding: 0; }
.privacy-page li { margin: 0 0 6px; }
.privacy-page address {
    font-style: normal;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 12px 16px;
    margin: 8px 0 14px;
    font-size: 14px;
    line-height: 1.6;
}
.privacy-page code {
    font-family: var(--mono);
    background: var(--surface);
    padding: 1px 5px;
    border-radius: 3px;
    font-size: 13px;
}
.privacy-meta {
    font-family: var(--mono);
    font-size: 11.5px;
    letter-spacing: 0.05em;
    color: var(--ink-soft);
    text-transform: uppercase;
    margin: -16px 0 28px !important;
}

/* ---------- Visualisierungs-Stub (timeline/spiral/graph) ---------- */

.viz-stub {
    max-width: 1100px;
    margin: 0 auto;
    padding: 48px 32px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 14px;
    text-align: center;
    color: var(--ink-soft);
}

.viz-stub h1 {
    font-family: var(--serif);
    font-weight: 400;
    font-size: 32px;
    color: var(--ink);
    margin: 0 0 12px;
}

.viz-stub p { font-size: 14px; line-height: 1.5; margin: 0 0 8px; }
.viz-stub code {
    font-family: var(--mono);
    background: var(--bg);
    padding: 1px 6px;
    border-radius: 4px;
    font-size: 12.5px;
}