/* Ypsilon Pi — Stylesheet, abgeleitet aus dem verbindlichen Design-Entwurf
   (entwurf/Ypsilon Pi Startseite/Ypsilon Pi Startseite.dc.html) */

:root {
  --bg: #05070d;
  --card: #0b111d;
  --ink: #eef3f8;
  --muted: #93a4b8;
  --accent: #7fe0ff;
  --line: rgba(127, 224, 255, .14);
  --accent-soft: rgba(127, 224, 255, .08);
  --sans: 'IBM Plex Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --grotesk: 'Space Grotesk', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, monospace;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

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

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

a:hover { opacity: .75; }

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

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

.hero {
  position: relative;
  height: min(860px, 100svh);
  overflow: hidden;
  background: radial-gradient(1200px 720px at 50% 42%, #0a1626 0%, #05070d 72%);
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.hero-vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(640px 300px at 50% 47%, rgba(5, 7, 13, .85) 0%, rgba(5, 7, 13, .5) 55%, rgba(5, 7, 13, 0) 100%);
}

.topbar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 34px 64px;
}

.wordmark {
  font: 600 17px var(--grotesk);
  letter-spacing: .02em;
}

.topbar nav {
  display: flex;
  gap: 36px;
  font: 500 14px var(--sans);
  color: var(--muted);
}

.hero-center {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 26px;
  padding: 0 60px;
}

.hero-center h1 {
  margin: 0;
  font: 500 clamp(52px, 12vw, 116px)/1 var(--grotesk);
  letter-spacing: -.035em;
}

.hero-sub {
  margin: 0;
  font: 400 clamp(19px, 3.4vw, 26px)/1.4 var(--sans);
  color: var(--ink);
}

.hero-tag {
  margin: 0;
  font: 500 13px var(--mono);
  letter-spacing: .38em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero-fade {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 180px;
  background: linear-gradient(to bottom, rgba(5, 7, 13, 0), #05070d);
}

/* ---------- Hero: Schreibfeld (unterste Helix-Kammer) ---------- */

.hero-terminal {
  position: absolute;
  left: 50%;
  top: 73%;
  transform: translateX(-50%);
  width: calc(100% - 48px);
}

.terminal-line {
  margin: 0;
  height: 62px; /* feste Höhe: kein Layout-Springen beim Tippen/Löschen */
  overflow: hidden;
  font: 400 12px/1.6 var(--mono);
  color: var(--ink);
  text-align: left;
}

.prompt { color: var(--accent); }

.cursor {
  display: inline-block;
  width: 8px;
  height: 1.05em;
  margin-left: 2px;
  vertical-align: text-bottom;
  background: var(--accent);
  opacity: .7;
  animation: cursor-blink 1.2s steps(2, jump-none) infinite;
}

@keyframes cursor-blink {
  50% { opacity: .12; }
}

/* ---------- Hero: Seiten-Panels ---------- */

.hero-wrap { position: relative; }

.panel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: rgba(11, 17, 29, .72);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px 20px;
  transition: border-color .3s ease;
}

.panel:hover {
  opacity: 1;
  border-color: rgba(127, 224, 255, .3);
}

.panel-motif {
  position: absolute;
  inset: -10px;
  width: calc(100% + 20px);
  height: calc(100% + 20px);
  pointer-events: none;
}

.panel-title {
  font: 500 16px var(--grotesk);
  color: var(--ink);
}

.panel-line {
  font: 400 13px/1.5 var(--sans);
  color: var(--muted);
}

/* Mobil: Panels als einspaltige Reihe unter dem Hero, Motive aus */
@media (max-width: 899.98px) {
  .hero-panels {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 20px 24px 0;
  }

  .panel-motif { display: none; }
}

/* Desktop: Drei-Zonen-Layout — Panels links/rechts der Helix,
   Breite aus der Helix-Amplitude (min(21vw, 300px)) abgeleitet,
   damit nichts die Helix überlappt */
@media (min-width: 900px) {
  .hero-center { transform: translateY(-52px); }

  .hero-vignette {
    background:
      radial-gradient(640px 300px at 50% 41%, rgba(5, 7, 13, .85) 0%, rgba(5, 7, 13, .5) 55%, rgba(5, 7, 13, 0) 100%),
      radial-gradient(560px 190px at 50% 74%, rgba(5, 7, 13, .8) 0%, rgba(5, 7, 13, .4) 55%, rgba(5, 7, 13, 0) 100%);
  }

  /* schmaler als die Helix-Breite: klar eigenständiges Element der Mitte,
     mit deutlichem Abstand zu beiden Panel-Seiten */
  .hero-terminal { width: min(520px, 36vw); }

  .terminal-line { height: 50px; font-size: 14px; }

  .hero-panels {
    position: absolute;
    inset: 0;
    pointer-events: none;
  }

  /* Panels an der Helix-Außenkante verankert, aber bewusst frei und
     versetzt: jedes Panel bestimmt über --gap (Abstand zur Helix),
     --w-max (Maximalbreite) und top/bottom seine eigene Lage — kein
     gemeinsames Raster. Neue Panels brauchen nur eine weitere
     .pos-*-Regel mit diesen drei Angaben. Wird es eng, macht die
     clamp()-Breite die Panels schmaler statt sie nach außen zu
     schieben; die Helix wird nie überlappt. */
  .panel {
    position: absolute;
    pointer-events: auto;
    --gap: 28px;
    --w-max: 264px;
    width: clamp(150px, calc(50vw - min(21vw, 300px) - var(--gap) - 24px), var(--w-max));
  }

  .pos-lt,
  .pos-lb { right: calc(50% + min(21vw, 300px) + var(--gap)); }

  .pos-rt,
  .pos-rb { left: calc(50% + min(21vw, 300px) + var(--gap)); }

  .pos-lt { --gap: 26px; --w-max: 264px; top: 19%; }
  .pos-lb { --gap: 38px; --w-max: 236px; bottom: 25%; }
  .pos-rt { --gap: 32px; --w-max: 252px; top: 26%; }
  .pos-rb { --gap: 20px; --w-max: 278px; bottom: 19%; }
}

/* ---------- Hauptbereich ---------- */

main {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 64px;
}

/* ---------- Ambienz (seitenweites Ziffern-Feld) ---------- */

.ambient {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  display: none; /* nur Desktop; bei reduzierter Bewegung ganz aus */
}

@media (min-width: 900px) {
  .ambient { display: block; }
}

/* ---------- Vision: Aus Chaos wird Ordnung ---------- */

.vision {
  padding: 150px 0 0;
}

.vision h2 {
  margin: 0 0 34px;
  font: 500 clamp(36px, 6vw, 54px)/1.1 var(--grotesk);
  letter-spacing: -.02em;
}

.vision-canvas {
  display: block;
  width: 100%;
  height: 240px;
  margin: 0 0 34px;
}

.vision p {
  margin: 0;
  max-width: 640px;
  font: 400 20px/1.65 var(--sans);
  color: var(--muted);
  text-wrap: pretty;
}

/* ---------- Agentic Company Services ---------- */

.agentic {
  padding: 140px 0 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 64px;
  align-items: center;
}

.agentic-statement {
  margin: 0 0 30px;
}

.agentic-word {
  display: block;
  font: 500 clamp(46px, 6.5vw, 76px)/1.05 var(--grotesk);
  letter-spacing: -.015em;
  text-transform: uppercase;
  color: var(--accent);
  text-shadow: 0 0 26px rgba(127, 224, 255, .35);
}

.agentic-rest {
  display: block;
  margin-top: 10px;
  font: 500 24px/1.2 var(--grotesk);
  letter-spacing: .02em;
}

.agentic-copy {
  margin: 0;
  max-width: 560px;
  font: 400 18px/1.65 var(--sans);
  color: var(--muted);
  text-wrap: pretty;
}

.swarm-canvas {
  display: block;
  width: 100%;
  height: 320px;
}

/* ---------- Leistungen (kompakte Leiste) ---------- */

.services {
  padding: 140px 0 0;
  scroll-margin-top: 28px;
}

.services-label {
  margin: 0 0 28px;
  font: 500 15px var(--mono);
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--muted);
}

.service-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-bottom: 1px solid var(--line);
}

.service {
  display: flex;
  align-items: baseline;
  gap: 28px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: 28px;
}

.service-num {
  font: 500 12px var(--mono);
  letter-spacing: .28em;
  color: var(--accent);
}

.service-name {
  flex: 0 0 240px;
  font: 500 21px var(--grotesk);
  letter-spacing: -.01em;
}

.service-desc {
  font: 400 16px/1.6 var(--sans);
  color: var(--muted);
  text-wrap: pretty;
}

.service-list-soon {
  margin-top: 56px;
}

.service-soon {
  padding: 15px 0;
}

.service-soon .service-name {
  flex: 1 1 auto;
  font-size: 16px;
  color: var(--muted);
}

.service-status {
  margin-left: auto;
  font: 400 12px var(--mono);
  color: var(--muted);
  white-space: nowrap;
}

/* ---------- Kontakt ---------- */

.contact {
  padding: 150px 0 120px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.contact h2 {
  margin: 0;
  font: 500 44px/1.1 var(--grotesk);
  letter-spacing: -.02em;
}

.contact > p {
  margin: 0;
  font: 400 19px/1.6 var(--sans);
  color: var(--muted);
}

.contact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 24px 56px;
  font: 400 19px var(--sans);
}

.contact-row a { color: var(--accent); }

/* ---------- Fußzeile ---------- */

footer {
  border-top: 1px solid var(--line);
  padding: 30px 64px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px 32px;
  font: 400 13px var(--mono);
  color: var(--muted);
}

.footer-links {
  display: flex;
  gap: 32px;
}

/* ---------- Unterseiten (Impressum / Datenschutz) ---------- */

.subpage-header {
  border-bottom: 1px solid var(--line);
}

.subpage-header .topbar {
  position: static;
}

.subpage {
  padding: 90px 0 130px;
}

.subpage h1 {
  margin: 0 0 40px;
  font: 500 clamp(36px, 6vw, 54px)/1.1 var(--grotesk);
  letter-spacing: -.02em;
}

.subpage h2 {
  margin: 56px 0 16px;
  font: 500 24px/1.25 var(--grotesk);
  letter-spacing: -.01em;
}

.subpage p {
  margin: 0 0 16px;
  max-width: 640px;
  font: 400 17px/1.65 var(--sans);
  color: var(--muted);
  text-wrap: pretty;
}

.placeholder {
  border: 1px dashed var(--line);
  border-radius: 12px;
  padding: 22px 24px;
  margin: 0 0 16px;
  max-width: 640px;
  font: 400 15px/1.6 var(--mono);
  color: var(--muted);
}

.placeholder strong {
  display: block;
  margin-bottom: 8px;
  font: 500 12px var(--mono);
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--accent);
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  main { padding: 0 40px; }

  .topbar { padding: 28px 40px; }

  footer { padding: 26px 40px; }

  .agentic {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  /* Schwarm mobil ganz aus */
  .agentic-canvas-wrap { display: none; }
}

@media (max-width: 640px) {
  main { padding: 0 24px; }

  .topbar { padding: 22px 24px; }

  footer {
    padding: 24px;
    flex-direction: column;
  }

  .hero-center { padding: 0 24px; }

  .vision { padding: 110px 0 0; }

  .vision-canvas { height: 180px; }

  .agentic { padding: 90px 0 0; }

  .services { padding: 100px 0 0; }

  .contact { padding: 110px 0 90px; }

  .service {
    flex-wrap: wrap;
    gap: 8px 16px;
  }

  .service-name { flex: 1 1 auto; }

  .service-desc { flex-basis: 100%; }
}

/* ---------- Bewegung reduzieren ---------- */

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

  .cursor { animation: none; } /* ruhender Cursor */

  .panel { transition: none; }

  .ambient { display: none; } /* Ambienz ganz aus */
}