/* === Eisbaden Shared Styles ===
   Used by: impressum, datenschutz, haftungsausschluss, kontakt
   Page-specific styles (h1 sizing, content layouts) stay inline per page. */

/* === Theme === */
:root {
    --bg: #fbfaf6;
    --bg-rgb: 251, 250, 246;
    --surface: #f3f1ea;
    --surface-2: #ece9df;
    --ink: #111110;
    --ink-rgb: 17, 17, 16;
    --ink-2: #2c2b27;
    --mute: #6f6e68;
    --mute-2: #a09e95;
    --rule: rgba(var(--ink-rgb), 0.08);
    --rule-strong: rgba(var(--ink-rgb), 0.16);
    --accent: #1e8bc3;
    --accent-soft: rgba(30, 139, 195, 0.10);
    --ice: #d1ebf8;
    color-scheme: light;
}
[data-theme="dark"] {
    --bg: #0e1116;
    --bg-rgb: 14, 17, 22;
    --surface: #161a20;
    --surface-2: #1d2128;
    --ink: #ece9df;
    --ink-rgb: 236, 233, 223;
    --ink-2: #c9c5b9;
    --mute: #8a877e;
    --mute-2: #5a5750;
    --rule: rgba(var(--ink-rgb), 0.10);
    --rule-strong: rgba(var(--ink-rgb), 0.22);
    --accent: #5cb7e0;
    --accent-soft: rgba(92, 183, 224, 0.14);
    --ice: rgba(209, 235, 248, 0.16);
    color-scheme: dark;
}
[data-theme="dark"] body::before { mix-blend-mode: screen; opacity: 0.04; }
[data-theme="dark"] nav { box-shadow: 0 8px 32px -12px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(var(--ink-rgb), 0.06); }
[data-theme="dark"] nav.scrolled { box-shadow: 0 12px 40px -12px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(var(--ink-rgb), 0.08); }
[data-theme="dark"] footer { background: #08090c; color: var(--ink-2); }
[data-theme="dark"] footer a:hover { color: var(--ink); }
[data-theme="dark"] .footer-brand { color: var(--ink); }
[data-theme="dark"] .footer-brand .mute { color: var(--mute); }
[data-theme="dark"] .footer-col h4 { color: var(--mute); }
[data-theme="dark"] .footer-col a { color: var(--ink-2); }
[data-theme="dark"] .footer-col a:hover { color: var(--ink); }
[data-theme="dark"] .footer-bottom { color: var(--mute); border-top-color: rgba(255, 255, 255, 0.08); }
[data-theme="dark"] .footer-grid { border-top-color: rgba(255, 255, 255, 0.08); }

/* === Reset + Base === */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Geist', system-ui, sans-serif;
    background: var(--bg);
    color: var(--ink);
    font-weight: 400;
    line-height: 1.65;
    font-size: 16px;
    font-feature-settings: "ss01", "ss03";
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

a { color: inherit; text-decoration: none; }

body::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 1;
    opacity: 0.025;
    mix-blend-mode: multiply;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.label {
    font-family: 'Geist Mono', monospace;
    font-size: 0.74rem;
    letter-spacing: 0.02em;
    color: var(--mute);
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-transform: uppercase;
}
.label::before {
    content: '';
    width: 6px; height: 6px;
    border-radius: 100px;
    background: var(--accent);
}

/* === Nav === */
nav {
    position: fixed;
    top: 14px; left: 14px; right: 14px;
    z-index: 50;
    padding: 12px 14px 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: background 0.4s, backdrop-filter 0.4s, border-color 0.4s, box-shadow 0.4s;
    background: rgba(var(--bg-rgb), 0.55);
    backdrop-filter: blur(22px) saturate(180%);
    -webkit-backdrop-filter: blur(22px) saturate(180%);
    border-radius: 100px;
    border: 1px solid rgba(var(--bg-rgb), 0.5);
    box-shadow: 0 8px 32px -12px rgba(var(--ink-rgb), 0.18), 0 0 0 1px rgba(var(--ink-rgb), 0.04);
}
nav.scrolled {
    background: rgba(var(--bg-rgb), 0.88);
    box-shadow: 0 12px 40px -12px rgba(var(--ink-rgb), 0.22), 0 0 0 1px rgba(var(--ink-rgb), 0.06);
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--ink);
}
.brand-mark {
    width: 28px; height: 28px;
    border-radius: 8px;
    display: block;
    box-shadow: 0 0 0 1px var(--rule);
    object-fit: cover;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.theme-toggle {
    width: 36px;
    height: 36px;
    border-radius: 100px;
    border: 1px solid var(--rule-strong);
    background: transparent;
    color: var(--ink-2);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
}
.theme-toggle:hover { background: var(--surface); color: var(--ink); }
.theme-toggle .icon-sun, .theme-toggle .icon-moon { width: 16px; height: 16px; }
[data-theme="light"] .theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-moon { display: block; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 16px;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--ink-2);
    border: 1px solid var(--rule-strong);
    transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.back-link:hover { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.back-link svg { transition: transform 0.2s; }
.back-link:hover svg { transform: translateX(-2px); }
.back-short { display: none; }
.back-full { display: inline; }

/* === Burger + Menu === */
.nav-burger {
    display: none;
    width: 36px;
    height: 36px;
    border-radius: 100px;
    border: 1px solid var(--rule-strong);
    background: transparent;
    cursor: pointer;
    position: relative;
    transition: background 0.2s, border-color 0.2s;
}
.nav-burger:hover { border-color: var(--ink); background: var(--surface); }
.nav-burger span {
    display: block;
    position: absolute;
    height: 1.5px;
    width: 16px;
    background: var(--ink);
    left: 50%;
    transform: translateX(-50%);
    transition: top 0.25s, transform 0.25s;
    border-radius: 2px;
}
.nav-burger span:nth-child(1) { top: 13px; }
.nav-burger span:nth-child(2) { top: 19px; }
.nav-burger.open span:nth-child(1) { top: 16px; transform: translateX(-50%) rotate(45deg); }
.nav-burger.open span:nth-child(2) { top: 16px; transform: translateX(-50%) rotate(-45deg); }

.nav-menu {
    position: fixed;
    top: 78px;
    left: 14px;
    right: 14px;
    z-index: 49;
    padding: 12px;
    background: rgba(var(--bg-rgb), 0.92);
    backdrop-filter: blur(22px) saturate(180%);
    -webkit-backdrop-filter: blur(22px) saturate(180%);
    border: 1px solid rgba(var(--bg-rgb), 0.5);
    border-radius: 22px;
    box-shadow: 0 12px 40px -12px rgba(var(--ink-rgb), 0.22), 0 0 0 1px rgba(var(--ink-rgb), 0.06);
    display: flex;
    flex-direction: column;
    gap: 2px;
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity 0.3s, transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}
.nav-menu.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}
.nav-menu a, .nav-menu .menu-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    color: var(--ink);
    font-size: 1rem;
    font-weight: 500;
    border-radius: 14px;
    transition: background 0.2s, color 0.2s, padding 0.25s;
    width: 100%;
    text-align: left;
}
.nav-menu a::after {
    content: '→';
    opacity: 0;
    transform: translateX(-8px);
    transition: opacity 0.2s, transform 0.25s;
    color: var(--accent);
    font-weight: 300;
}
.nav-menu a:hover, .nav-menu a:active,
.nav-menu .menu-toggle:hover, .nav-menu .menu-toggle:active {
    background: var(--surface);
    color: var(--accent);
    padding-left: 22px;
}
.nav-menu a:hover::after, .nav-menu a:active::after {
    opacity: 1;
    transform: translateX(0);
}
.nav-menu .menu-divider {
    height: 1px;
    background: var(--rule);
    margin: 6px 12px;
}
.nav-menu .menu-toggle {
    background: transparent;
    border: none;
    font-family: 'Geist', system-ui, sans-serif;
    cursor: pointer;
}
.nav-menu .menu-toggle .toggle-content {
    display: inline-flex;
    align-items: center;
    gap: 12px;
}
.nav-menu .menu-toggle svg { width: 17px; height: 17px; flex-shrink: 0; }
.nav-menu .menu-toggle .toggle-state {
    font-family: 'Geist Mono', monospace;
    font-size: 0.74rem;
    color: var(--mute);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
[data-theme="light"] .nav-menu .menu-toggle .icon-sun { display: none; }
[data-theme="light"] .nav-menu .menu-toggle .icon-moon { display: inline-block; }
[data-theme="light"] .nav-menu .menu-toggle .label-light { display: none; }
[data-theme="light"] .nav-menu .menu-toggle .label-dark { display: inline; }
[data-theme="light"] .nav-menu .menu-toggle .state-light { display: inline; }
[data-theme="light"] .nav-menu .menu-toggle .state-dark { display: none; }
[data-theme="dark"] .nav-menu .menu-toggle .icon-sun { display: inline-block; }
[data-theme="dark"] .nav-menu .menu-toggle .icon-moon { display: none; }
[data-theme="dark"] .nav-menu .menu-toggle .label-light { display: inline; }
[data-theme="dark"] .nav-menu .menu-toggle .label-dark { display: none; }
[data-theme="dark"] .nav-menu .menu-toggle .state-light { display: none; }
[data-theme="dark"] .nav-menu .menu-toggle .state-dark { display: inline; }

/* === Page === */
main.page {
    max-width: 760px;
    margin: 0 auto;
    padding: 140px 32px 80px;
    position: relative;
    z-index: 3;
}

.page-header {
    margin-bottom: 56px;
    padding-bottom: 32px;
    border-bottom: 1px solid var(--rule);
}
.page-header .label { margin-bottom: 18px; }

/* === Footer === */
footer {
    background: var(--ink);
    color: var(--bg);
    padding: 0 32px 36px;
    position: relative;
    z-index: 3;
    margin-top: 80px;
}
.footer-grid {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 0 48px;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 48px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-brand {
    font-family: 'Geist', sans-serif;
    font-weight: 500;
    font-size: 1.4rem;
    letter-spacing: -0.025em;
    line-height: 1.3;
    max-width: 320px;
}
.footer-logo {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    display: block;
    margin-bottom: 16px;
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.1);
}
.footer-brand .mute {
    color: var(--mute-2);
    display: block;
    margin-top: 4px;
    font-size: 1rem;
}
.footer-col h4 {
    font-family: 'Geist Mono', monospace;
    font-size: 0.74rem;
    color: var(--mute-2);
    margin-bottom: 18px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.footer-col a {
    display: block;
    color: var(--bg);
    font-size: 0.92rem;
    margin-bottom: 10px;
    transition: color 0.2s;
}
.footer-col a:hover { color: var(--ice); }
.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 28px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    font-family: 'Geist Mono', monospace;
    font-size: 0.74rem;
    color: var(--mute-2);
    flex-wrap: wrap;
    gap: 12px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* === Responsive === */
@media (max-width: 720px) {
    nav { padding: 10px 12px 10px 14px; top: 10px; left: 10px; right: 10px; }
    .brand { font-size: 0.92rem; }
    .brand-mark { width: 26px; height: 26px; }
    .theme-toggle, .back-link { display: none; }
    .nav-burger { display: block; }
    .nav-menu { top: 70px; }

    main.page { padding: 110px 20px 60px; }
    .page-header { margin-bottom: 40px; padding-bottom: 24px; }

    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; padding: 48px 0 32px; }
    .footer-bottom { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
    .footer-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    html { scroll-behavior: auto; }
}