/* === Wiener Urkundenbuch — Base (Reset, Navigation, Layout, Footer) === */


/* --- Reset & base --- */
*, *::before, *::after { box-sizing: border-box; }

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    margin: 0;
    font-family: var(--font-serif);
    font-size: var(--text-base);
    line-height: var(--leading-body);
    color: var(--color-text);
    background: var(--color-bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* --- Utility classes --- */
.hidden { display: none !important; }
tr[role="button"] { cursor: pointer; }

/* Screen-reader-only content (visible to assistive tech, hidden visually) */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* --- Focus visible (WCAG 2.4.7) --- */
:focus-visible {
    outline: 2px solid var(--anno-person);
    outline-offset: 2px;
}

.site-nav :focus-visible {
    outline-color: var(--color-text-inverse);
}

.site-nav a:focus-visible,
.nav-dropdown-trigger:focus-visible,
.nav-hamburger:focus-visible {
    opacity: 1;
}

/* --- Reduced motion (WCAG 2.3.3) --- */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
}

/* --- Skip-link (accessibility) --- */
.skip-link {
    position: absolute;
    left: -9999px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
    z-index: 1000;
    padding: var(--space-sm) var(--space-md);
    background: var(--color-bg-nav);
    color: var(--color-text-inverse);
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    text-decoration: none;
}

.skip-link:focus {
    position: fixed;
    left: var(--space-md);
    top: var(--space-md);
    width: auto;
    height: auto;
    z-index: 10000;
    border-radius: var(--radius);
}


/* --- Navigation --- */
.site-nav {
    background: var(--color-bg-nav);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    position: sticky;
    top: 0;
    z-index: var(--z-nav);
}

.nav-inner {
    max-width: var(--max-width-wide);
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 3.5rem;
}

.nav-brand {
    display: flex;
    align-items: baseline;
    gap: var(--space-sm);
    text-decoration: none;
    color: var(--color-text-inverse);
}

.nav-brand-sigil {
    font-size: 1.25rem;
    opacity: 0.7;
}

.nav-brand-text {
    font-family: var(--font-serif);
    font-weight: 600;
    font-size: var(--text-lg);
    letter-spacing: 0.01em;
}

.nav-badge {
    font-family: var(--font-sans);
    font-size: var(--text-2xs);
    color: var(--anno-fn-recipient);
    border: 1px solid rgba(46, 122, 136, 0.4);
    padding: 0.15em 0.6em;
    border-radius: 1rem;
    white-space: nowrap;
    letter-spacing: 0.03em;
    align-self: center;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

/* Gemeinsame Geometrie fuer alle Top-Level-Nav-Items (Link + Dropdown-
   Trigger). Setzt User-Agent-Defaults (Button-Hintergrund, -Rahmen,
   -Padding, -Schrift, -Appearance) auf Null und sorgt fuer identische
   Baseline, unabhaengig vom Element-Typ. */
.nav-item,
.nav-item:hover,
.nav-item:focus,
.nav-item:active {
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: 400;
    line-height: 1.2;
    color: var(--color-text-inverse);
    background: none;
    background-color: transparent;
    border: 0;
    border-radius: 0;
    padding: 0;
    margin: 0;
    text-decoration: none;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 0.25em;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    box-shadow: none;
}

.nav-item:hover,
.nav-dropdown.open > .nav-item,
.nav-item[aria-current="page"],
.nav-dropdown.is-current > .nav-item { opacity: 1; }

.nav-item[aria-current="page"],
.nav-dropdown.is-current > .nav-item {
    box-shadow: inset 0 -2px 0 currentColor;
}

/* Nav dropdown */
.nav-dropdown {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.nav-dropdown-arrow {
    font-size: 0.7em;
    line-height: 1;
}

.nav-dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-bg-nav);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--space-xs) 0;
    min-width: 10rem;
    box-shadow: var(--shadow-lg);
    z-index: calc(var(--z-nav) + 1);
}

.nav-dropdown.open .nav-dropdown-menu { display: block; }

.nav-dropdown-menu a {
    display: block;
    padding: var(--space-sm) var(--space-md);
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    color: var(--color-text-inverse);
    text-decoration: none;
    opacity: 0.7;
    transition: opacity var(--transition-fast), background var(--transition-fast);
}

.nav-dropdown-menu a:hover {
    opacity: 1;
    background: rgba(255, 255, 255, 0.08);
}

.nav-dropdown-menu a.nav-disabled {
    opacity: 0.45;
    font-style: italic;
}
.nav-dropdown-menu a.nav-disabled::after {
    content: " (in Vorbereitung)";
    font-size: 0.85em;
    opacity: 0.8;
}

/* Nav hamburger (hidden on desktop) */
.nav-hamburger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    flex-direction: column;
    gap: 4px;
}

.nav-hamburger span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--color-text-inverse);
    border-radius: 1px;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}


/* --- Main content --- */
.site-main {
    flex: 1;
    max-width: var(--max-width-wide);
    width: 100%;
    margin: 0 auto;
    padding: var(--space-xl) var(--space-lg) var(--space-2xl);
}


/* --- Footer --- */
.site-footer {
    background: var(--color-bg-footer);
    color: var(--color-text-inverse);
    font-family: var(--font-sans);
    font-size: var(--text-xs);
    margin-top: auto;
}

.footer-inner {
    max-width: var(--max-width-wide);
    margin: 0 auto;
    padding: var(--space-lg);
    display: flex;
    justify-content: space-between;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.footer-col p {
    margin: 0 0 var(--space-xs);
    opacity: 0.6;
}

.footer-project {
    opacity: 0.8;
    font-weight: 500;
}

.footer-col-right { text-align: right; }

.footer-link {
    color: inherit;
    opacity: 1;
    text-decoration: underline;
    text-decoration-color: rgba(255,255,255,0.3);
    text-underline-offset: 2px;
    transition: text-decoration-color var(--transition-fast);
}

.footer-link:hover {
    text-decoration-color: rgba(255,255,255,0.8);
}