/* ============================================================
   KI-PULS — Lagebild der künstlichen Intelligenz
   Design: Kontrollraum. Signalgrün auf Anthrazit.
   Fonts: Archivo (Display), JetBrains Mono (Daten) — OFL, self-hosted
   ============================================================ */

@font-face {
  font-family: "Archivo";
  src: url("fonts/archivo-var.woff2") format("woff2-variations");
  font-weight: 100 900;
  font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("fonts/jetbrainsmono-var.woff2") format("woff2-variations");
  font-weight: 100 800;
  font-display: swap;
}

:root {
  --bg: #0a0e12;
  --bg-raise: #10161d;
  --bg-panel: #0d1319;
  --line: #1d2833;
  --line-soft: #16202a;
  --ink: #e8f0f2;
  --ink-dim: #93a6b0;
  --ink-faint: #5c6f7a;
  --pulse: #3ddc97;
  --pulse-dim: rgba(61, 220, 151, 0.14);
  --cyan: #4cc3e8;
  --amberish: #e8b84c;
  --alert: #e8654c;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  --sans: "Archivo", system-ui, sans-serif;
  --maxw: 1120px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

/* Sichtbarer Fokus für Tastaturnavigation */
a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--pulse);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Skip-Link */
.skip-link {
  position: fixed;
  top: 0.6rem;
  left: 50%;
  transform: translate(-50%, -160%);
  z-index: 100;
  background: var(--pulse);
  color: var(--bg);
  font-family: var(--mono);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.55rem 1rem;
  border-radius: 8px;
  text-decoration: none;
  transition: transform 0.18s ease;
}
.skip-link:focus { transform: translate(-50%, 0); }

/* ---------- Topbar ---------- */
.topbar {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.8rem 1.4rem;
  background: rgba(10, 14, 18, 0.82);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line-soft);
}
.brand { display: flex; align-items: center; gap: 0.6rem; }
.brand-mark {
  width: 22px; height: 22px; border-radius: 6px;
  background:
    linear-gradient(135deg, var(--pulse), var(--cyan));
  position: relative;
  flex: none;
}
.brand-mark::after {
  content: "";
  position: absolute; inset: 0;
  border-radius: 6px;
  box-shadow: 0 0 14px rgba(61, 220, 151, 0.55);
  animation: markglow 2.4s ease-in-out infinite;
}
@keyframes markglow {
  0%, 100% { opacity: 0.35; }
  50% { opacity: 1; }
}
.brand-name {
  font-family: var(--mono);
  font-weight: 700;
  letter-spacing: 0.22em;
  font-size: 0.85rem;
}
.topnav { display: flex; gap: 1.5rem; }
.topnav a {
  color: var(--ink-dim);
  text-decoration: none;
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 550;
  transition: color 0.2s;
}
.topnav a:hover { color: var(--pulse); }
.status-chip {
  display: flex; align-items: center; gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--ink-dim);
  border: 1px solid var(--line);
  border-radius: 100px;
  padding: 0.32rem 0.75rem;
  background: var(--bg-raise);
  white-space: nowrap;
}
.status-chip .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--pulse);
  animation: blink 1.6s ease-in-out infinite;
}
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0.25; } }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  place-items: center;
  overflow: hidden;
}
#pulse-canvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  display: block;
}
.hero-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 7rem 1.5rem 4rem;
  max-width: 900px;
}
.kicker {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--pulse);
  margin-bottom: 1.4rem;
}
h1 {
  font-size: clamp(2.6rem, 7vw, 5rem);
  font-weight: 780;
  line-height: 1.04;
  letter-spacing: -0.025em;
}
h1 em {
  font-style: normal;
  color: var(--pulse);
  text-shadow: 0 0 34px rgba(61, 220, 151, 0.45);
}
.lede {
  margin: 1.6rem auto 0;
  max-width: 34em;
  color: var(--ink-dim);
  font-size: clamp(1rem, 2vw, 1.18rem);
}
/* ---------- Puls-Index-Gauge ---------- */
.pulse-index {
  margin: 2.8rem auto 0;
  width: 200px;
  position: relative;
  text-align: center;
}
.pi-gauge {
  width: 160px;
  height: 160px;
  transform: rotate(-90deg);
  display: block;
  margin: 0 auto;
  filter: drop-shadow(0 0 16px rgba(61, 220, 151, 0.28));
}
.pi-track {
  fill: none;
  stroke: var(--line);
  stroke-width: 8;
}
.pi-arc {
  fill: none;
  stroke: url(#pi-grad);
  stroke: var(--pulse);
  stroke-width: 8;
  stroke-linecap: round;
  stroke-dasharray: 414.7; /* 2πr, r=66 */
  stroke-dashoffset: 414.7;
  transition: stroke-dashoffset 1.6s cubic-bezier(0.22, 1, 0.36, 1);
}
.pi-readout {
  position: absolute;
  top: 62px;
  left: 0; right: 0;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.15rem;
}
.pi-value {
  font-family: var(--mono);
  font-size: 2.7rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1;
}
.pi-unit {
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--ink-faint);
}
.pi-label {
  margin-top: 0.4rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--pulse);
}
.pi-sub {
  margin-top: 0.2rem;
  font-size: 0.72rem;
  color: var(--ink-faint);
}
.pi-trend { color: var(--cyan); white-space: nowrap; }

.hero-metrics {
  margin-top: 2.4rem;
  display: flex;
  justify-content: center;
  gap: clamp(1.2rem, 4vw, 3.4rem);
  flex-wrap: wrap;
}
.metric {
  display: flex; flex-direction: column; gap: 0.35rem;
  padding: 1rem 1.3rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(13, 19, 25, 0.72);
  min-width: 170px;
}
.metric-value {
  font-family: var(--mono);
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--pulse);
}
.metric-label {
  font-size: 0.74rem;
  color: var(--ink-faint);
  line-height: 1.45;
  letter-spacing: 0.03em;
}
.scroll-hint {
  display: inline-block;
  margin-top: 3.4rem;
  color: var(--ink-dim);
  text-decoration: none;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  animation: floaty 2.6s ease-in-out infinite;
}
.scroll-hint:hover { color: var(--pulse); }
@keyframes floaty { 0%,100% { transform: translateY(0); } 50% { transform: translateY(7px); } }

/* ---------- Panels ---------- */
.panel {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(4rem, 9vw, 7.5rem) 1.5rem 2rem;
}
.panel-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.4rem 1.4rem;
  align-items: baseline;
  margin-bottom: 3rem;
  max-width: 760px;
}
.panel-no {
  font-family: var(--mono);
  color: var(--pulse);
  font-size: 0.95rem;
  font-weight: 700;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.25rem 0.6rem;
  background: var(--bg-raise);
}
.panel-head h2 {
  font-size: clamp(1.7rem, 4vw, 2.5rem);
  font-weight: 740;
  letter-spacing: -0.02em;
}
.panel-head p {
  grid-column: 2;
  color: var(--ink-dim);
  max-width: 46em;
}

/* reveal animation */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.is-in { opacity: 1; transform: none; }

/* ---------- Timeline ---------- */
.timeline-wrap {
  position: relative;
  margin: 0 -1.5rem;
  padding: 0 1.5rem;
}
.timeline {
  display: flex;
  gap: 1.1rem;
  overflow-x: auto;
  padding: 2.2rem 1.5rem 1.6rem;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
  position: relative;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 1.1rem;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line) 8%, var(--line) 92%, transparent);
}
.tl-card {
  scroll-snap-align: start;
  flex: 0 0 264px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--bg-panel);
  padding: 1.15rem 1.2rem 1.25rem;
  position: relative;
  transition: border-color 0.25s, transform 0.25s;
}
.tl-card:hover {
  border-color: var(--pulse);
  transform: translateY(-4px);
}
.tl-card::before {
  content: "";
  position: absolute;
  top: -1.35rem;
  left: 1.2rem;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--pulse);
  box-shadow: 0 0 10px rgba(61, 220, 151, 0.7);
}
.tl-year {
  font-family: var(--mono);
  font-weight: 700;
  color: var(--pulse);
  font-size: 0.95rem;
}
.tl-title {
  font-weight: 680;
  margin: 0.35rem 0 0.4rem;
  font-size: 1.02rem;
  line-height: 1.3;
}
.tl-desc {
  font-size: 0.84rem;
  color: var(--ink-dim);
  line-height: 1.55;
}
.tl-tag {
  display: inline-block;
  margin-top: 0.7rem;
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan);
  border: 1px solid rgba(76, 195, 232, 0.35);
  border-radius: 100px;
  padding: 0.18rem 0.55rem;
}

/* ---------- Radar ---------- */
.radar-layout {
  display: grid;
  grid-template-columns: 150px 1fr 220px;
  gap: 2rem;
  align-items: center;
}
.radar-controls {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.radar-controls button {
  font-family: var(--mono);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink-dim);
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.65rem 1rem;
  cursor: pointer;
  text-align: left;
  transition: all 0.22s;
}
.radar-controls button:hover { border-color: var(--pulse); color: var(--ink); }
.radar-controls button[aria-selected="true"] {
  background: var(--pulse-dim);
  border-color: var(--pulse);
  color: var(--pulse);
}
.radar-stage { position: relative; }
#radar-svg { width: 100%; height: auto; display: block; }
.radar-legend {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  font-size: 0.8rem;
}
.rl-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.8rem;
  align-items: center;
  color: var(--ink-dim);
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: 0.45rem;
}
.rl-val {
  font-family: var(--mono);
  color: var(--pulse);
  font-weight: 700;
}

/* ---------- Compute chart ---------- */
.chart-stage {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--bg-panel);
  padding: 1.4rem;
  overflow-x: auto;
}
#compute-svg { width: 100%; min-width: 640px; height: auto; display: block; }
.chart-note {
  margin-top: 1rem;
  font-size: 0.78rem;
  color: var(--ink-faint);
  max-width: 60em;
}

/* ---------- Chart-Tooltip (geteilt) ---------- */
.chart-tip {
  position: fixed;
  z-index: 60;
  pointer-events: none;
  opacity: 0;
  transform: translate(-50%, -112%);
  transition: opacity 0.14s ease;
  background: var(--bg-raise);
  border: 1px solid var(--pulse);
  border-radius: 10px;
  padding: 0.55rem 0.75rem;
  font-family: var(--mono);
  font-size: 0.74rem;
  line-height: 1.5;
  color: var(--ink);
  white-space: nowrap;
  box-shadow: 0 8px 26px rgba(0, 0, 0, 0.5);
}
.chart-tip.is-on { opacity: 1; }
.chart-tip .tip-key { color: var(--pulse); font-weight: 700; }
.chart-tip .tip-sub { color: var(--ink-dim); }
.hit-dot {
  cursor: pointer;
  transition: r 0.15s ease;
}
.hit-dot:hover { r: 8; }

/* ---------- Governance ---------- */
.gov-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.1rem;
}
.gov-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--bg-panel);
  padding: 1.3rem 1.4rem;
  transition: border-color 0.25s;
}
.gov-card:hover { border-color: var(--pulse); }
.gov-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  margin-bottom: 0.6rem;
}
.gov-region {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.01em;
}
.gov-badge {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 100px;
  padding: 0.22rem 0.6rem;
  white-space: nowrap;
}
.gov-badge.hoch { color: var(--pulse); border: 1px solid rgba(61,220,151,0.4); background: rgba(61,220,151,0.08); }
.gov-badge.mittel { color: var(--amberish); border: 1px solid rgba(232,184,76,0.4); background: rgba(232,184,76,0.08); }
.gov-badge.niedrig { color: var(--alert); border: 1px solid rgba(232,101,76,0.4); background: rgba(232,101,76,0.08); }
.gov-desc { font-size: 0.86rem; color: var(--ink-dim); line-height: 1.55; }
.gov-meter {
  margin-top: 0.9rem;
  height: 5px;
  border-radius: 100px;
  background: var(--line-soft);
  overflow: hidden;
}
.gov-meter i {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--cyan), var(--pulse));
  width: 0;
  transition: width 1.1s cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Ausblick / Szenarien ---------- */
#outlook-svg { width: 100%; min-width: 640px; height: auto; display: block; }
.scenario-grid {
  margin-top: 1.4rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.1rem;
}
.sc-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--bg-panel);
  padding: 1.3rem 1.4rem;
  position: relative;
  transition: border-color 0.25s;
}
.sc-card:hover { border-color: var(--pulse); }
.sc-card.is-base { border-color: rgba(61, 220, 151, 0.45); }
.sc-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  margin-bottom: 0.6rem;
}
.sc-name { font-weight: 700; font-size: 1.02rem; }
.sc-badge {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 100px;
  padding: 0.22rem 0.6rem;
  white-space: nowrap;
}
.sc-badge.slow { color: var(--alert); border: 1px solid rgba(232,101,76,0.4); background: rgba(232,101,76,0.08); }
.sc-badge.base { color: var(--pulse); border: 1px solid rgba(61,220,151,0.4); background: rgba(61,220,151,0.08); }
.sc-badge.fast { color: var(--cyan); border: 1px solid rgba(76,195,232,0.4); background: rgba(76,195,232,0.08); }
.sc-desc { font-size: 0.86rem; color: var(--ink-dim); line-height: 1.55; }
.sc-marker {
  margin-top: 0.9rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--ink-faint);
}
.sc-marker strong { color: var(--ink-dim); font-weight: 600; }

/* ---------- Closing ---------- */
.panel-closing {
  text-align: center;
  padding-bottom: clamp(4rem, 8vw, 6rem);
}
.closing-inner {
  max-width: 720px;
  margin: 0 auto;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: clamp(2.2rem, 5vw, 3.6rem);
  background:
    radial-gradient(ellipse at 50% 0%, rgba(61, 220, 151, 0.08), transparent 60%),
    var(--bg-panel);
}
.closing-inner h2 {
  font-size: clamp(1.5rem, 3.4vw, 2.1rem);
  font-weight: 740;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}
.closing-inner p { color: var(--ink-dim); max-width: 44em; margin: 0 auto; }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--line-soft);
  padding: 2.2rem 1.5rem 2.6rem;
  text-align: center;
  color: var(--ink-faint);
  font-size: 0.78rem;
}
.footer p { max-width: 56em; margin: 0 auto 0.6rem; }
.footer a { color: var(--ink-dim); }
.footer a:hover { color: var(--pulse); }

/* ---------- Guide-Seite ---------- */
.guide-main {
  max-width: 760px;
  margin: 0 auto;
  padding: 7.5rem 1.5rem 3rem;
}
.guide-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--ink-dim);
  text-decoration: none;
  margin-bottom: 2rem;
}
.guide-back:hover { color: var(--pulse); }
.guide-lead {
  font-size: clamp(1.05rem, 2.2vw, 1.25rem);
  color: var(--ink-dim);
  line-height: 1.65;
  margin: 1rem 0 1rem;
  max-width: 46em;
}
.guide-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.6rem 0 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--line);
}
.guide-toc a {
  font-family: var(--mono);
  font-size: 0.74rem;
  color: var(--ink-dim);
  border: 1px solid var(--line);
  border-radius: 100px;
  padding: 0.32rem 0.8rem;
  text-decoration: none;
  transition: all 0.2s;
}
.guide-toc a:hover { border-color: var(--pulse); color: var(--pulse); }
.guide-sec { margin-bottom: 2.8rem; scroll-margin-top: 6rem; }
.guide-sec h2 {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  font-size: clamp(1.3rem, 3vw, 1.7rem);
  font-weight: 720;
  letter-spacing: -0.015em;
  margin-bottom: 0.9rem;
}
.guide-sec h2 .g-no {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--pulse);
  font-weight: 700;
}
.guide-sec p { color: var(--ink-dim); margin-bottom: 0.9rem; line-height: 1.7; }
.guide-sec p:last-child { margin-bottom: 0; }
.guide-sec strong { color: var(--ink); font-weight: 650; }
.guide-formula {
  font-family: var(--mono);
  font-size: 0.92rem;
  color: var(--pulse);
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--pulse);
  border-radius: 8px;
  padding: 0.9rem 1.1rem;
  margin: 0.4rem 0 1.1rem;
  line-height: 1.6;
  overflow-x: auto;
}
.guide-src {
  list-style: none;
  display: grid;
  gap: 0.55rem;
}
.guide-src li {
  font-size: 0.9rem;
  color: var(--ink-dim);
  padding-left: 1.2rem;
  position: relative;
}
.guide-src li::before {
  content: "▹";
  position: absolute;
  left: 0;
  color: var(--pulse);
}
.guide-caveat {
  background: rgba(232, 184, 76, 0.06);
  border: 1px solid rgba(232, 184, 76, 0.28);
  border-radius: 12px;
  padding: 1.2rem 1.3rem;
  margin-top: 1rem;
}
.guide-caveat p { color: var(--ink-dim); margin-bottom: 0.6rem; }
.guide-caveat p:last-child { margin-bottom: 0; }
.guide-caveat .caveat-tag {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amberish);
  display: block;
  margin-bottom: 0.6rem;
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .radar-layout { grid-template-columns: 1fr; }
  .radar-controls { flex-direction: row; flex-wrap: wrap; }
  .radar-legend { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem 1.4rem; }
  .topnav { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}