/* Coreverse — dark technical */

:root {
    --bg:        #06070a;
    --bg-soft:   #090b11;
    --line:      rgba(255, 255, 255, 0.075);
    --line-2:    rgba(255, 255, 255, 0.14);

    --text:   #e8ebf2;
    --muted:  #8b94a6;
    --faint:  #59627a;

    --core:   #f0a836;   /* was zusammenfaellt */
    --edge:   #5ce0e6;   /* was sich verteilt  */

    --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Mono", Menlo, Consolas, monospace;
    --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

    --gut: clamp(1.25rem, 5vw, 5rem);
    --max: 1180px;
}

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--sans);
    font-size: 16px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* Feines Raster ueber der ganzen Seite */
.grain {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image:
        linear-gradient(to right, rgba(255,255,255,0.028) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255,255,255,0.028) 1px, transparent 1px);
    background-size: 72px 72px;
    mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 0%, transparent 78%);
    -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 0%, transparent 78%);
}

main, .nav, .foot { position: relative; z-index: 1; }

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

h1, h2, h3 {
    margin: 0;
    font-weight: 500;
    letter-spacing: -0.035em;
    line-height: 1.06;
}

.eyebrow {
    margin: 0 0 1.4rem;
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--faint);
}

.lede { color: var(--muted); font-size: clamp(1rem, 1.5vw, 1.14rem); max-width: 56ch; }

/* ---------- Navigation ---------- */

.nav {
    position: sticky;
    top: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    padding: 1.15rem var(--gut);
    border-bottom: 1px solid transparent;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    transition: border-color 0.35s ease, background 0.35s ease;
}

.nav.is-stuck {
    border-bottom-color: var(--line);
    background: rgba(6, 7, 10, 0.72);
}

.nav__mark {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    font-family: var(--mono);
    font-size: 0.9rem;
    letter-spacing: 0.06em;
}

.nav__glyph {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--edge);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 4px rgba(92,224,230,0.10), 0 0 14px rgba(92,224,230,0.40); }
    50%      { box-shadow: 0 0 0 7px rgba(92,224,230,0.05), 0 0 26px rgba(92,224,230,0.70); }
}

.nav__links { display: flex; gap: 1.9rem; font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.08em; }
.nav__links a { color: var(--faint); transition: color 0.2s ease; }
.nav__links a:hover { color: var(--text); }

@media (max-width: 620px) { .nav__links { display: none; } }

/* ---------- Hero ---------- */

.hero {
    position: relative;
    min-height: min(94svh, 900px);
    display: flex;
    align-items: center;
    padding: clamp(4rem, 12vh, 9rem) var(--gut) clamp(5rem, 14vh, 10rem);
    overflow: hidden;
}

.hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; }

.hero__veil {
    position: absolute;
    inset: 0;
    z-index: 1;
    background:
        radial-gradient(120% 80% at 78% 42%, transparent 0%, rgba(6,7,10,0.55) 55%, var(--bg) 88%),
        linear-gradient(to right, var(--bg) 0%, rgba(6,7,10,0.82) 34%, transparent 62%);
}

.hero__inner { position: relative; z-index: 2; width: 100%; max-width: var(--max); margin: 0 auto; }

.hero__title {
    font-size: clamp(2.6rem, 7.4vw, 5.6rem);
    max-width: 15ch;
    background: linear-gradient(168deg, #ffffff 8%, #b9c2d4 62%, #6d7691 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero__lede {
    margin: 1.8rem 0 0;
    max-width: 48ch;
    color: var(--muted);
    font-size: clamp(1.02rem, 1.6vw, 1.2rem);
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 0.85rem; margin-top: 2.6rem; }

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.78rem 1.4rem;
    border: 1px solid var(--line-2);
    border-radius: 2px;
    font-family: var(--mono);
    font-size: 0.8rem;
    letter-spacing: 0.06em;
    color: var(--muted);
    transition: color 0.22s ease, border-color 0.22s ease, background 0.22s ease, transform 0.22s ease;
}

.btn:hover { color: var(--text); border-color: var(--edge); transform: translateY(-1px); }

.btn--solid {
    color: #04141a;
    background: var(--edge);
    border-color: var(--edge);
    font-weight: 600;
}

.btn--solid:hover { background: #7ceef3; border-color: #7ceef3; color: #04141a; }

.hero__legend {
    position: absolute;
    z-index: 2;
    left: var(--gut);
    bottom: clamp(1.5rem, 5vh, 3rem);
    display: flex;
    gap: 1.6rem;
    font-family: var(--mono);
    font-size: 0.68rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--faint);
}

.legend__item { display: inline-flex; align-items: center; gap: 0.5rem; }
.legend__item i { width: 7px; height: 7px; border-radius: 50%; }
.legend__item--core i { background: var(--core); box-shadow: 0 0 12px rgba(240,168,54,0.6); }
.legend__item--mesh i { background: var(--edge); box-shadow: 0 0 12px rgba(92,224,230,0.6); }

@media (max-width: 620px) { .hero__legend { display: none; } }

/* ---------- Sections ---------- */

.section {
    max-width: var(--max);
    margin: 0 auto;
    padding: clamp(5rem, 13vh, 9rem) var(--gut);
    border-top: 1px solid var(--line);
}

.section__head { margin-bottom: clamp(2.5rem, 6vh, 4rem); }
.section__head h2 { font-size: clamp(1.9rem, 4.2vw, 3.1rem); max-width: 18ch; }
.section__head .lede { margin-top: 1.4rem; }

.grid { list-style: none; margin: 0; padding: 0; display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
/* Feste Spaltenzahlen statt auto-fit: nur so geht jedes Raster restlos auf
   und es bleibt keine halbe Reihe als Freiflaeche stehen. */
.grid--3, .grid--2 { grid-template-columns: 1fr; }

@media (min-width: 640px) {
    .grid--2 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 900px) {
    .grid--3 { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1240px) {
    .grid--2 { grid-template-columns: repeat(4, 1fr); }
}

.card {
    position: relative;
    background: var(--bg);
    padding: clamp(1.6rem, 3vw, 2.3rem);
    transition: background 0.3s ease;
}

.card::before {
    content: "";
    position: absolute;
    inset: 0 auto 0 0;
    width: 1px;
    background: var(--edge);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.card:hover { background: var(--bg-soft); }
.card:hover::before { opacity: 0.7; }

.card p { margin: 0; color: var(--muted); font-size: 0.96rem; }

.card__idx {
    display: block;
    margin-bottom: 0.9rem;
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--edge);
}

.card--work { padding-top: clamp(2rem, 4vw, 3rem); }

.card__num {
    display: block;
    margin-bottom: 1.6rem;
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.2em;
    color: var(--faint);
}

.card--work h3 { font-size: 1.35rem; margin-bottom: 0.7rem; letter-spacing: -0.02em; }

/* ---------- Axiome ---------- */

.axioms { list-style: none; margin: 0; padding: 0; }

.axioms li {
    display: flex;
    align-items: baseline;
    gap: clamp(1rem, 4vw, 3rem);
    padding: clamp(1.1rem, 2.6vw, 1.7rem) 0;
    border-top: 1px solid var(--line);
    font-size: clamp(1.15rem, 2.6vw, 1.9rem);
    letter-spacing: -0.02em;
    transition: padding-left 0.3s ease;
}

.axioms li:last-child { border-bottom: 1px solid var(--line); }
.axioms li:hover { padding-left: 0.6rem; }

.axioms span {
    flex: 0 0 auto;
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.2em;
    color: var(--core);
}

/* ---------- Abschluss ---------- */

.closing {
    max-width: var(--max);
    margin: 0 auto;
    padding: clamp(6rem, 16vh, 11rem) var(--gut);
    border-top: 1px solid var(--line);
    text-align: center;
}

.closing h2 {
    font-size: clamp(2rem, 5.6vw, 3.8rem);
    background: linear-gradient(150deg, #ffffff 10%, #93b9c6 58%, var(--edge) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.closing p { margin: 1.8rem auto 0; max-width: 58ch; color: var(--muted); }

.closing__note {
    margin-top: 2.6rem !important;
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--faint);
}

/* ---------- Fuss ---------- */

.foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    max-width: var(--max);
    margin: 0 auto;
    padding: 2rem var(--gut) 3rem;
    border-top: 1px solid var(--line);
    font-family: var(--mono);
    font-size: 0.74rem;
    letter-spacing: 0.1em;
    color: var(--faint);
}

.foot__mark { color: var(--muted); }

/* ---------- Einblenden beim Scrollen ---------- */

.reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.is-in { opacity: 1; transform: none; }

.grid .reveal:nth-child(2) { transition-delay: 0.08s; }
.grid .reveal:nth-child(3) { transition-delay: 0.16s; }
.grid .reveal:nth-child(4) { transition-delay: 0.24s; }
.axioms .reveal:nth-child(2) { transition-delay: 0.06s; }
.axioms .reveal:nth-child(3) { transition-delay: 0.12s; }
.axioms .reveal:nth-child(4) { transition-delay: 0.18s; }

@media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; transform: none; transition: none; }
    .nav__glyph { animation: none; }
}

/* ---------- Status- und Fehlerseite ---------- */

.plain { max-width: var(--max); margin: 0 auto; padding: clamp(4rem, 12vh, 8rem) var(--gut); }
.plain h1 { font-size: clamp(1.9rem, 4.5vw, 2.8rem); margin-bottom: 1.4rem; }
.plain p { color: var(--muted); }

.status { width: 100%; border-collapse: collapse; margin-top: 2rem; border: 1px solid var(--line); }
.status th, .status td { text-align: left; padding: 0.85rem 1.1rem; border-bottom: 1px solid var(--line); font-size: 0.92rem; }
.status tr:last-child th, .status tr:last-child td { border-bottom: 0; }
.status th { width: 13rem; font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--faint); font-weight: 400; }