/* =========================================================================
   IMPRESSUM – STYLESHEET
   1. Tokens        2. Reset       3. Hintergrund   4. Layout
   5. Topbar        6. Kopfbereich 7. Karten        8. Rechtstexte
   9. Footer       10. Motion/A11y 11. Responsive
   ========================================================================= */

/* ---- 1. Tokens ---------------------------------------------------------- */
:root {
    --bg:          #050a10;
    --bg-deep:     #020508;
    --cyan:        #22b5f0;
    --green:       #37d99b;
    --text:        #e8f1f6;
    --text-dim:    #93a6b3;
    --text-faint:  #62757f;
    --line:        rgba(120, 180, 210, .12);
    --line-strong: rgba(120, 180, 210, .28);
    --card:        rgba(12, 22, 32, .55);
    --card-hover:  rgba(14, 26, 38, .66);

    --radius:      18px;
    --shell:       880px;
    --ease:        cubic-bezier(.22, 1, .36, 1);

    --font:        'Space Grotesk', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    --mono:        'JetBrains Mono', ui-monospace, SFMono-Regular, 'Cascadia Mono', monospace;
}

/* ---- 2. Reset ----------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body {
    margin: 0;
    min-height: 100svh;
    background: var(--bg-deep);
    color: var(--text);
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }

/* ---- 3. Hintergrund ----------------------------------------------------- */
.bg-stack {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    background: var(--bg);
}

/* Farb-Glows: Cyan oben links, Grün unten rechts, zentrale Vignette */
.bg-stack::before {
    content: '';
    position: absolute;
    inset: -20%;
    background:
        radial-gradient(60% 55% at 8% 0%,    rgba(34, 181, 240, .20), transparent 60%),
        radial-gradient(55% 50% at 100% 92%, rgba(55, 217, 155, .16), transparent 62%),
        radial-gradient(90% 90% at 50% 40%,  transparent 40%, rgba(2, 5, 8, .85) 100%);
}

/* Vertikale Abdunklung für Lesbarkeit an Kopf und Fuß */
.bg-stack::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg,
        rgba(2, 5, 8, .55) 0%,
        transparent 22%,
        transparent 70%,
        rgba(2, 5, 8, .75) 100%);
}

#constellation {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
}

/* ---- 4. Layout ---------------------------------------------------------- */
.shell {
    width: min(100% - 2.5rem, var(--shell));
    margin-inline: auto;
}

.page {
    padding: clamp(3rem, 9vw, 6.5rem) 0 4rem;
}

/* ---- 5. Topbar ---------------------------------------------------------- */
.topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    background: linear-gradient(180deg, rgba(5, 10, 16, .85), rgba(5, 10, 16, 0));
}

.topbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.1rem 0;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: .6rem;
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: -.01em;
    color: var(--text);
    text-decoration: none;
}

.brand__dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--cyan), var(--green));
    box-shadow: 0 0 14px rgba(34, 181, 240, .8);
}

.back {
    font-size: .88rem;
    color: var(--text-dim);
    text-decoration: none;
    padding: .5rem .95rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    white-space: nowrap;
    transition: color .25s, border-color .25s, background .25s, transform .25s;
}

.back:hover {
    color: var(--text);
    border-color: rgba(55, 217, 155, .45);
    background: rgba(55, 217, 155, .07);
    transform: translateY(-1px);
}

/* ---- 6. Kopfbereich ----------------------------------------------------- */
.eyebrow {
    display: flex;
    align-items: center;
    gap: .75rem;
    margin: 0 0 1rem;
    font-family: var(--mono);
    font-size: .72rem;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--cyan);
}

.eyebrow::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, rgba(34, 181, 240, .5), transparent);
}

.title {
    margin: 0;
    font-size: clamp(2.6rem, 8vw, 4.4rem);
    font-weight: 700;
    line-height: 1;
    letter-spacing: -.035em;
    background: linear-gradient(100deg, #ffffff 20%, var(--cyan) 62%, var(--green) 96%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.lede {
    margin: 1.1rem 0 0;
    max-width: 48ch;
    color: var(--text-dim);
}

/* ---- 7. Karten ---------------------------------------------------------- */
.grid {
    display: grid;
    gap: 1rem;
    margin: clamp(2.5rem, 6vw, 3.75rem) 0 0;
    grid-template-columns: 1fr;   /* gestapelt */
    grid-auto-rows: 1fr;          /* alle Karten auf Höhe der größten */
}

.card {
    position: relative;
    overflow: hidden;
    padding: 1.5rem 1.6rem;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: border-color .3s, transform .3s var(--ease), background .3s;
}

/* Inhalt oben ausrichten, damit gleich hohe Karten optisch bündig sind */
.card > :last-child { margin-bottom: 0; }

/* Lichtkante oben – greift den Gradient der Marke auf */
.card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 1px;
    opacity: .5;
    background: linear-gradient(90deg, transparent, rgba(34, 181, 240, .55), rgba(55, 217, 155, .35), transparent);
    transition: opacity .3s;
}

.card:hover {
    border-color: rgba(34, 181, 240, .3);
    background: var(--card-hover);
    transform: translateY(-2px);
}

.card:hover::before { opacity: 1; }

.card__label {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: -.01em;
}

.card__note {
    margin: .15rem 0 1.15rem;
    font-family: var(--mono);
    font-size: .7rem;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--text-faint);
}

.data {
    margin: 0;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: .55rem 1.4rem;
    align-items: baseline;
}

.data dt {
    color: var(--text-faint);
    font-size: .82rem;
    white-space: nowrap;
}

.data dd {
    margin: 0;
    font-size: .95rem;
    color: var(--text);
    overflow-wrap: anywhere;
}

.data a {
    color: var(--green);
    text-decoration: none;
    border-bottom: 1px solid rgba(55, 217, 155, .3);
    transition: color .2s, border-color .2s;
}

.data a:hover {
    color: var(--cyan);
    border-color: var(--cyan);
}

/* ---- 8. Rechtstexte ----------------------------------------------------- */
.legal {
    margin-top: clamp(2.5rem, 6vw, 3.75rem);
    border-top: 1px solid var(--line);
}

.legal__item {
    display: grid;
    grid-template-columns: minmax(160px, .32fr) 1fr;
    gap: 1.5rem;
    padding: 1.75rem 0;
    border-bottom: 1px solid var(--line);
}

.legal__item h2 {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: -.01em;
    color: var(--text);
}

.legal__item p {
    margin: 0;
    font-size: .94rem;
    color: var(--text-dim);
}

/* ---- 9. Footer ---------------------------------------------------------- */
.footer {
    padding: 2.5rem 0 3.5rem;
    font-family: var(--mono);
    font-size: .74rem;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--text-faint);
}

/* ---- 10. Motion & Accessibility ----------------------------------------- */
.reveal {
    opacity: 0;
    transform: translateY(18px);
}

.reveal.is-in {
    opacity: 1;
    transform: none;
    transition: opacity .7s var(--ease), transform .7s var(--ease);
}

/* Ohne JavaScript bleibt der Inhalt sichtbar */
.no-js .reveal {
    opacity: 1;
    transform: none;
}

:focus-visible {
    outline: 2px solid var(--cyan);
    outline-offset: 3px;
    border-radius: 6px;
}

::selection {
    background: rgba(55, 217, 155, .3);
    color: #fff;
}

/* ---- 11. Responsive ----------------------------------------------------- */
@media (max-width: 640px) {
    .legal__item {
        grid-template-columns: 1fr;
        gap: .6rem;
    }

    .data {
        grid-template-columns: 1fr;
        gap: .1rem;
    }

    .data dt { margin-top: .6rem; }

}

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

    .reveal { opacity: 1; transform: none; }
}