/* ============================================================
   AlphacenTech – Design System v2
   Self-hosted assets only (fonts, icons). No external CDNs.
   ============================================================ */

/* ---------- Fonts (self-hosted) ---------- */
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("../fonts/inter-latin-wght-normal.woff2") format("woff2-variations");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2212;
}

/* ---------- Design Tokens ---------- */
:root {
  /* Brand */
  --primary: #0066ff;
  --primary-rgb: 0, 102, 255;
  --secondary: #7928ca;
  --secondary-rgb: 121, 40, 202;
  --accent: #00d4ff;
  --accent-rgb: 0, 212, 255;
  --brand-navy: #2b2e4a;
  /* Film-Grain als data-URI (Opacity im SVG gebacken) — nur auf Ink-Flächen verwenden. */
  --grain: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
  --grad: linear-gradient(135deg, var(--primary), var(--secondary));
  /* Gradient for background-clip:text only — dark mode overrides with lighter stops for contrast. */
  --grad-text: var(--grad);
  --grad-soft: linear-gradient(135deg, rgba(var(--primary-rgb), .1), rgba(var(--secondary-rgb), .1));

  /* Surfaces & text (light) */
  --bg: #fafbfe;
  --bg-soft: #f2f5fb;
  --surface: #ffffff;
  --border: #e6eaf3;
  --border-strong: #d5dbe8;
  --text: #0b1220;
  --text-2: #4b5567;
  --text-3: #646f84;

  /* Dark hero/sections use these regardless of theme */
  --ink-bg: #070a14;
  --ink-bg-2: #0b0f1d;
  --ink-surface: rgba(255, 255, 255, .04);
  --ink-border: rgba(255, 255, 255, .09);
  --ink-text: #f2f4fb;
  --ink-text-2: rgba(235, 239, 250, .72);
  --ink-text-3: rgba(235, 239, 250, .55);

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(11, 18, 32, .06);
  --shadow-md: 0 6px 24px rgba(11, 18, 32, .08);
  --shadow-lg: 0 16px 48px rgba(11, 18, 32, .12);
  --shadow-glow: 0 8px 32px rgba(var(--primary-rgb), .28);

  /* Typography */
  --font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-md: 1.125rem;
  --fs-lg: 1.25rem;
  --fs-xl: 1.5rem;
  --fs-2xl: 2rem;
  --fs-3xl: 2.5rem;
  --fs-4xl: 3.25rem;
  --fs-hero: clamp(2.5rem, 5vw, 4.25rem);
  --fs-title: clamp(1.9rem, 3.2vw, 2.6rem);

  /* Layout */
  --container-max: 1200px;
  --nav-height: 72px;
  --section-pad: clamp(4.5rem, 8vw, 7rem);

  /* Radii & motion */
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;
  --ease: cubic-bezier(.4, 0, .2, 1);
  --transition: all .3s var(--ease);
  --transition-fast: all .15s ease;

  /* ---- Legacy aliases (v1 compatibility) ---- */
  --black: var(--text);
  --grey: var(--text-2);
  --grey-light: var(--text-3);
  --white: #ffffff;
  --bg-primary: var(--bg);
  --bg-secondary: var(--bg-soft);
  --bg-tertiary: var(--bg-soft);
  --bg-dark: var(--ink-bg);
  --bg-card: var(--surface);
  --bg-glass: rgba(255, 255, 255, .65);
  --border-color: var(--border);
  --border-glass: rgba(255, 255, 255, .18);
  --shadow-xl: var(--shadow-lg);
}

/* ---------- Dark Mode ---------- */
[data-theme="dark"] {
  --bg: #070a12;
  --bg-soft: #0b101c;
  --surface: #0e1424;
  --border: rgba(255, 255, 255, .08);
  --border-strong: rgba(255, 255, 255, .14);
  --text: #eef1f8;
  --text-2: #a3adc2;
  --text-3: #757f99;
  --grad-text: linear-gradient(135deg, #6ea8ff, #b58cff);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, .35);
  --shadow-md: 0 6px 24px rgba(0, 0, 0, .45);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, .55);
  --bg-glass: rgba(14, 20, 36, .65);
  --border-glass: rgba(255, 255, 255, .07);
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; text-size-adjust: 100%; }
body {
  font-family: var(--font-family);
  font-size: var(--fs-base);
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  transition: background .3s ease, color .3s ease;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; display: block; }
button { font-family: inherit; }
::selection { background: rgba(var(--primary-rgb), .22); }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; border-radius: 4px; }
/* Auf dunklen/gradienten Flächen ist das blaue Outline unsichtbar (~1:1 auf dem CTA-Panel). */
.hero :focus-visible, .section--ink :focus-visible, .cta-inner :focus-visible,
.marquee-section :focus-visible, .site-footer :focus-visible { outline-color: #fff; }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 2000;
  background: var(--primary); color: #fff; padding: .6rem 1.2rem;
  border-radius: 0 0 var(--radius-sm) 0; font-weight: 600; font-size: var(--fs-sm);
}
.skip-link:focus { left: 0; }

[id] { scroll-margin-top: calc(var(--nav-height) + 16px); }

/* ---------- Layout primitives ---------- */
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 1.5rem; }
.section { padding: var(--section-pad) 0; }
.section--alt { background: var(--bg-soft); }
.section--ink { background: var(--ink-bg); color: var(--ink-text); }
.section--ink .section-title { color: var(--ink-text); }
.section--ink .section-lead { color: var(--ink-text-2); }

.section-head { max-width: 720px; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.section-head.centered { margin-inline: auto; text-align: center; }
.section-title {
  font-size: var(--fs-title); font-weight: 750; line-height: 1.15;
  letter-spacing: -0.022em; color: var(--text); margin-bottom: 1rem;
  text-wrap: balance;
}
.section-lead { font-size: var(--fs-md); color: var(--text-2); text-wrap: pretty; }

.eyebrow {
  display: inline-flex; align-items: center; gap: .5rem;
  font-size: var(--fs-xs); font-weight: 650; letter-spacing: .1em; text-transform: uppercase;
  color: #0060f0; margin-bottom: 1.1rem;
}
.eyebrow::before {
  content: ""; width: 22px; height: 2px; border-radius: 2px; background: var(--grad);
}
.section--ink .eyebrow, .hero .eyebrow, [data-theme="dark"] .eyebrow { color: #7eb1ff; }

.gradient-text {
  background: var(--grad-text);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
[data-theme="dark"] .gradient-text,
.section--ink .gradient-text, .hero .gradient-text {
  background: linear-gradient(120deg, #6ea8ff, #b58cff 70%, #7ee0ff);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
/* Shine-Sweep über die Hero-Headline. Perf-Ausnahme: background-position statt transform —
   die Repaint-Fläche ist nur die Headline-Zeile (background-clip:text). */
.hero h1 .gradient-text {
  background: linear-gradient(115deg, #6ea8ff 0%, #b58cff 28%, #eef4ff 38%, #7ee0ff 46%, #b58cff 60%, #6ea8ff 100%);
  background-size: 300% 100%;
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  animation: grad-sweep 8s var(--ease) infinite;
}
@keyframes grad-sweep { 0%, 58% { background-position: 100% 0; } 88%, 100% { background-position: 0 0; } }

/* Grids */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(2rem, 4vw, 4rem); align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.5rem; }
@media (max-width: 820px) { .grid-2 { grid-template-columns: 1fr; } }

/* Bento */
.bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: 1.25rem; }
.bento > * { grid-column: span 2; }
.bento .b-3 { grid-column: span 3; }
.bento .b-4 { grid-column: span 4; }
.bento .b-6 { grid-column: span 6; }
@media (max-width: 980px) {
  .bento { grid-template-columns: repeat(2, 1fr); }
  .bento > *, .bento .b-3, .bento .b-4, .bento .b-6 { grid-column: span 2; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  padding: .8rem 1.6rem; border-radius: var(--radius-md); border: 1px solid transparent;
  font-weight: 600; font-size: var(--fs-sm); line-height: 1.4; cursor: pointer;
  transition: var(--transition); white-space: nowrap;
}
.btn-lg { padding: 1rem 2.2rem; font-size: var(--fs-base); }
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 4px 16px rgba(var(--primary-rgb), .25); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-glow); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border-strong); }
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.btn-white { background: #fff; color: #1d1f3a; box-shadow: var(--shadow-md); }
.btn-white:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-ink {
  background: rgba(255, 255, 255, .08); color: #fff;
  border-color: rgba(255, 255, 255, .18); backdrop-filter: blur(8px);
}
.btn-ink:hover { background: rgba(255, 255, 255, .14); transform: translateY(-2px); }
/* legacy names */
.btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border-strong); padding: .7rem 1.4rem; }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.btn-secondary { background: var(--bg-glass); color: var(--text); border: 1px solid var(--border); backdrop-filter: blur(8px); }
.btn-secondary:hover { background: var(--bg-soft); transform: translateY(-2px); }

/* ---------- Badges & chips ---------- */
.badge {
  display: inline-flex; align-items: center; gap: .4rem;
  font-size: var(--fs-xs); font-weight: 600;
  padding: .3rem .8rem; border-radius: var(--radius-full);
}
.badge-primary { background: rgba(var(--primary-rgb), .1); color: #0060f0; }
[data-theme="dark"] .badge-primary { color: #7eb1ff; }
.badge-success { background: rgba(34, 197, 94, .12); color: #117f3a; }
[data-theme="dark"] .badge-success { color: #4ade80; }
.badge-purple { background: rgba(var(--secondary-rgb), .12); color: var(--secondary); }
[data-theme="dark"] .badge-purple { color: #c084fc; }

.chip {
  display: inline-flex; align-items: center; gap: .45rem;
  font-size: var(--fs-xs); font-weight: 550;
  padding: .42rem .95rem; border-radius: var(--radius-full);
  background: rgba(255, 255, 255, .07); color: var(--ink-text-2);
  border: 1px solid rgba(255, 255, 255, .12); backdrop-filter: blur(8px);
}
.chip i { color: #8ec1ff; font-size: .8rem; }

/* ---------- Cards ---------- */
.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 1.9rem;
  transition: var(--transition); box-shadow: var(--shadow-sm);
  position: relative;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: rgba(var(--primary-rgb), .35); }
.card h3 { font-size: var(--fs-lg); font-weight: 650; letter-spacing: -.01em; margin-bottom: .5rem; color: var(--text); }
.card p { color: var(--text-2); font-size: var(--fs-sm); line-height: 1.7; }
.card-link {
  display: inline-flex; align-items: center; gap: .4rem; margin-top: 1.1rem;
  font-size: var(--fs-sm); font-weight: 600; color: var(--primary);
}
.card-link i { transition: transform .25s var(--ease); font-size: .8rem; }
.card:hover .card-link i, .card-link:hover i { transform: translateX(4px); }

.card-icon {
  width: 52px; height: 52px; display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md); background: var(--grad-soft);
  border: 1px solid rgba(var(--primary-rgb), .15);
  margin-bottom: 1.25rem; font-size: 1.35rem;
}
.card-icon i { background: var(--grad-text); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }

/* ---------- Hero (dark, shared) ---------- */
.hero {
  position: relative; overflow: hidden; display: flex; align-items: center;
  background:
    radial-gradient(1100px 520px at 78% -10%, rgba(var(--secondary-rgb), .28), transparent 60%),
    radial-gradient(900px 500px at 12% 112%, rgba(var(--primary-rgb), .22), transparent 60%),
    linear-gradient(180deg, #080b16 0%, var(--ink-bg) 100%);
  color: var(--ink-text);
}
.hero--full { min-height: 100svh; padding: calc(var(--nav-height) + 4rem) 0 5.5rem; }
.hero--page { padding: calc(var(--nav-height) + clamp(3.5rem, 7vw, 5.5rem)) 0 clamp(3rem, 6vw, 4.5rem); }
.hero--slim { padding: calc(var(--nav-height) + 2.5rem) 0 2.5rem; }
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(rgba(255, 255, 255, .13) 1px, transparent 1.4px);
  background-size: 28px 28px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 20%, transparent 75%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(180deg, transparent, rgba(7, 10, 20, .55)) bottom / 100% 140px no-repeat,
    var(--grain) top left / 160px 160px repeat;
}
.hero > .container { position: relative; z-index: 2; }
.hero h1 {
  font-size: var(--fs-hero); font-weight: 800; line-height: 1.06;
  letter-spacing: -0.028em; margin-bottom: 1.4rem; color: var(--ink-text);
  text-wrap: balance;
}
.hero .hero-sub {
  font-size: var(--fs-md); color: var(--ink-text-2); line-height: 1.75;
  max-width: 560px; margin-bottom: 2.2rem; text-wrap: pretty;
}
.hero-buttons { display: flex; gap: .9rem; flex-wrap: wrap; }
.hero-chips { display: flex; gap: .6rem; flex-wrap: wrap; margin-top: 2.4rem; }

.hero-badge {
  display: inline-flex; align-items: center; gap: .5rem;
  font-size: var(--fs-xs); font-weight: 600; letter-spacing: .02em;
  color: #9fc4ff; background: rgba(var(--primary-rgb), .13);
  border: 1px solid rgba(var(--primary-rgb), .3);
  padding: .4rem 1rem; border-radius: var(--radius-full); margin-bottom: 1.6rem;
}
.hero-badge .dot {
  width: 7px; height: 7px; border-radius: 50%; background: #4ade80;
  box-shadow: 0 0 0 3px rgba(74, 222, 128, .2); animation: pulse-dot 2.4s ease-in-out infinite;
}

/* ---------- Product demo window (chat mockup) ---------- */
.demo-window {
  background: linear-gradient(180deg, rgba(255, 255, 255, .07), rgba(255, 255, 255, .03));
  border: 1px solid var(--ink-border); border-radius: var(--radius-lg);
  backdrop-filter: blur(14px); box-shadow: 0 30px 80px rgba(0, 0, 0, .5);
  overflow: hidden; font-size: var(--fs-sm);
}
.demo-titlebar {
  display: flex; align-items: center; gap: .5rem;
  padding: .8rem 1.1rem; border-bottom: 1px solid var(--ink-border);
}
.demo-titlebar .td { width: 10px; height: 10px; border-radius: 50%; opacity: .85; }
.demo-titlebar .td:nth-child(1) { background: #ff5f57; }
.demo-titlebar .td:nth-child(2) { background: #febc2e; }
.demo-titlebar .td:nth-child(3) { background: #28c840; }
.demo-titlebar span { margin-left: .6rem; color: var(--ink-text-3); font-size: var(--fs-xs); font-weight: 550; }
.demo-body { padding: 1.3rem; display: grid; gap: .9rem; }
.demo-msg {
  max-width: 88%; padding: .8rem 1.05rem; border-radius: 14px; line-height: 1.55;
  opacity: 0; transform: translateY(10px);
  animation: demo-in .5s var(--ease) forwards;
}
.demo-msg.user {
  justify-self: end; background: var(--grad); color: #fff;
  border-bottom-right-radius: 4px; animation-delay: .7s;
}
.demo-msg.ai {
  justify-self: start; background: rgba(255, 255, 255, .08); color: var(--ink-text);
  border: 1px solid var(--ink-border); border-bottom-left-radius: 4px; animation-delay: 1.7s;
}
.demo-src {
  justify-self: start; display: inline-flex; align-items: center; gap: .45rem;
  font-size: var(--fs-xs); font-weight: 600; color: #8ec1ff;
  background: rgba(var(--primary-rgb), .14); border: 1px solid rgba(var(--primary-rgb), .3);
  padding: .35rem .8rem; border-radius: var(--radius-full);
  opacity: 0; transform: translateY(10px); animation: demo-in .5s var(--ease) 2.5s forwards;
}
.demo-footer {
  display: flex; align-items: center; gap: .6rem; padding: .9rem 1.1rem;
  border-top: 1px solid var(--ink-border); color: var(--ink-text-3); font-size: var(--fs-xs);
}
.demo-footer i { color: #4ade80; }
@keyframes demo-in { to { opacity: 1; transform: none; } }

/* ---------- Stats strip ---------- */
.stats-strip { position: relative; z-index: 5; margin-top: -68px; }
.stats-strip-inner {
  background: var(--bg-glass); backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass); border-radius: var(--radius-xl);
  padding: 2.4rem 2rem; box-shadow: var(--shadow-lg);
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; text-align: center;
}
.stat-number {
  font-size: var(--fs-3xl); font-weight: 780; line-height: 1; letter-spacing: -.02em;
  background: var(--grad-text); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.stat-label { font-size: var(--fs-sm); color: var(--text-2); margin-top: .45rem; }
@media (max-width: 820px) { .stats-strip-inner { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .stats-strip-inner { grid-template-columns: 1fr; gap: 1.5rem; } }

/* ---------- Feature list ---------- */
.feature-list { list-style: none; display: grid; gap: .7rem; margin: 1.4rem 0; }
.feature-list li { display: flex; align-items: flex-start; gap: .7rem; font-size: var(--fs-sm); color: var(--text-2); }
.feature-list li i { color: var(--primary); font-size: .8rem; margin-top: .35rem; flex-shrink: 0; }
.section--ink .feature-list li { color: var(--ink-text-2); }
.section--ink .feature-list li i { color: #8ec1ff; }

/* ---------- Process steps ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; counter-reset: step; }
.step {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 1.8rem 1.5rem; position: relative; transition: var(--transition);
}
.step:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: rgba(var(--primary-rgb), .35); }
.step::before {
  counter-increment: step; content: "0" counter(step);
  font-size: var(--fs-sm); font-weight: 750; letter-spacing: .05em;
  background: var(--grad-text); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  display: block; margin-bottom: .9rem;
}
.step h3 { font-size: var(--fs-md); font-weight: 650; margin-bottom: .45rem; color: var(--text); }
.step p { font-size: var(--fs-sm); color: var(--text-2); }
@media (max-width: 980px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }

/* ---------- Timeline ---------- */
.timeline { position: relative; max-width: 720px; margin: 0 auto; padding: 1rem 0; text-align: left; }
.timeline::before {
  content: ""; position: absolute; top: 0; bottom: 0; left: 27px;
  width: 2px; background: linear-gradient(180deg, var(--primary), var(--secondary));
  border-radius: 2px; opacity: .6;
}
.timeline-item { position: relative; padding-left: 68px; padding-bottom: 2.2rem; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: ""; position: absolute; left: 19px; top: 5px;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--grad); border: 3px solid var(--bg);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), .25); z-index: 1;
}
.timeline-year {
  display: inline-block; font-weight: 700; font-size: var(--fs-xs);
  color: #fff; background: var(--grad);
  padding: .18rem .75rem; border-radius: var(--radius-full); margin-bottom: .55rem;
}
.timeline-content {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 1.4rem 1.7rem; box-shadow: var(--shadow-sm);
}
.timeline-content h3 { font-size: var(--fs-md); font-weight: 650; margin-bottom: .35rem; color: var(--text); }
.timeline-content p { color: var(--text-2); font-size: var(--fs-sm); margin: 0; }

/* ---------- Tech marquee ---------- */
.marquee-section { padding: 3.2rem 0; background: var(--ink-bg); overflow: hidden; }
.marquee-label {
  text-align: center; font-size: var(--fs-xs); font-weight: 600;
  letter-spacing: .14em; text-transform: uppercase; color: var(--ink-text-3);
  margin-bottom: 1.8rem;
}
.marquee {
  display: grid; gap: 1.4rem;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee-track { display: flex; align-items: center; gap: 4rem; width: max-content; }
/* Animate only when JS runs (html.js) — JS duplicates the logos; without it the loop would jump. */
.js .marquee-track { animation: marquee 42s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-track img {
  height: 38px; width: auto; flex: 0 0 auto;
  filter: grayscale(1) brightness(1.9); opacity: .55; transition: var(--transition);
}
.marquee-track img:hover { filter: none; opacity: 1; transform: translateY(-4px) scale(1.1); }
/* Zweite, gegenläufige Logo-Reihe (JS-Klon) — kleiner, dunkler, langsamer = Parallax-Tiefe. */
.js .marquee-track--rev { animation-direction: reverse; animation-duration: 56s; }
.marquee-track--rev img { height: 28px; opacity: .32; }
/* Pause-Knopf (WCAG 2.2.2): dezent rechts oben; ohne JS gibt es keine Animation → Knopf weg. */
.marquee-toggle {
  position: absolute; right: 1.25rem; top: 2.7rem; z-index: 2;
  width: 34px; height: 34px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(255, 255, 255, .06); border: 1px solid var(--ink-border);
  color: var(--ink-text-2); cursor: pointer; font-size: .68rem;
  transition: var(--transition-fast);
}
.marquee-toggle:hover { background: rgba(255, 255, 255, .14); color: var(--ink-text); }
html:not(.js) .marquee-toggle { display: none; }
.marquee.paused .marquee-track { animation-play-state: paused; }

/* ---------- FAQ ---------- */
.faq { max-width: 760px; margin: 0 auto; display: grid; gap: .8rem; }
.faq details {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-md); transition: var(--transition-fast);
}
.faq details[open] { border-color: rgba(var(--primary-rgb), .4); box-shadow: var(--shadow-sm); }
.faq summary {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  cursor: pointer; list-style: none; padding: 1.15rem 1.4rem;
  font-weight: 600; font-size: var(--fs-base); color: var(--text);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "\2b"; font-weight: 500; color: var(--text-3); font-size: 1.2rem;
  transition: transform .25s var(--ease); line-height: 1;
}
.faq details[open] summary::after { transform: rotate(45deg); color: var(--primary); }
.faq .faq-body { padding: 0 1.4rem 1.25rem; color: var(--text-2); font-size: var(--fs-sm); line-height: 1.75; }
.faq details[open] { background: linear-gradient(180deg, rgba(var(--primary-rgb), .05), transparent 45%), var(--surface); }
.faq details[open] .faq-body { animation: faq-in .35s var(--ease); }
@keyframes faq-in { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }
/* Height-Slide, wo unterstützt — andere Browser behalten den Fade. */
@supports (interpolate-size: allow-keywords) {
  .faq details { interpolate-size: allow-keywords; }
  .faq details::details-content { block-size: 0; overflow: hidden; transition: block-size .35s var(--ease), content-visibility .35s allow-discrete; }
  .faq details[open]::details-content { block-size: auto; }
}

/* ---------- CTA panel ---------- */
.cta-section { padding: var(--section-pad) 1.25rem; }
.cta-inner {
  position: relative; overflow: hidden; max-width: 1000px; margin: 0 auto;
  border-radius: var(--radius-xl); padding: clamp(3rem, 6vw, 4.5rem) clamp(1.75rem, 5vw, 4rem);
  text-align: center; color: #fff;
  background:
    var(--grain) top left / 160px 160px repeat,
    radial-gradient(700px 320px at 85% -20%, rgba(255, 255, 255, .18), transparent 60%),
    var(--grad);
}
.cta-inner > * { position: relative; z-index: 1; }
.cta-inner h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); font-weight: 750; letter-spacing: -.02em; margin-bottom: .9rem; text-wrap: balance; }
.cta-inner p { opacity: .92; margin: 0 auto 2rem; font-size: var(--fs-md); max-width: 560px; }
.cta-inner .hero-buttons { justify-content: center; }

/* ---------- Forms ---------- */
/* input:not([type]) deckt Blazors InputText ab, das ohne type-Attribut rendert. */
.input, input:not([type]), input[type="text"], input[type="email"], input[type="tel"], textarea {
  width: 100%; padding: .85rem 1.05rem; border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm); font-size: var(--fs-sm); font-family: var(--font-family);
  background: var(--surface); color: var(--text);
  transition: border-color .25s, box-shadow .25s;
}
textarea { min-height: 150px; resize: vertical; }
.input:focus, input:focus, textarea:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), .13);
}
input::placeholder, textarea::placeholder { color: var(--text-3); }

/* ---------- Toasts ---------- */
.success-message, .error-message {
  position: fixed; bottom: 2rem; right: 2rem; color: #fff; padding: 1rem 1.4rem;
  border-radius: var(--radius-md); box-shadow: var(--shadow-lg); z-index: 1200;
  display: flex; align-items: center; gap: .9rem; font-size: var(--fs-sm);
  transition: opacity .3s, transform .3s, visibility .3s; max-width: min(420px, calc(100vw - 3rem));
}
.success-message { background: #15803d; } /* white text 5.0:1 (#16a34a was 3.3:1) */
.error-message { background: #dc2626; }
.toast-hidden { opacity: 0; transform: translateY(20px); pointer-events: none; visibility: hidden; }

/* ---------- Reveal on scroll ---------- */
/* Hidden only when JS is available (html.js set in App.razor) — content stays visible without JS. */
.js .reveal {
  opacity: 0; transform: translateY(26px);
  transition: opacity .75s var(--ease), transform .85s cubic-bezier(.16, 1, .3, 1);
  transition-delay: var(--reveal-delay, 0ms);
}
.js .reveal.reveal-l { transform: translateX(-34px); }
.js .reveal.reveal-r { transform: translateX(34px); }
.js .reveal.reveal-s { transform: translateY(16px) scale(.94); }
.js .reveal.in { opacity: 1; transform: none; }

/* ---------- WOW: Licht & Leben ---------- */
/* Driftende Auroras auf Ink-Flächen (Hero + Flagship). Kein filter:blur — nur transform, Compositor-only. */
.aurora { position: absolute; inset: 0; overflow: hidden; pointer-events: none; z-index: 0; }
.aurora span { position: absolute; width: min(60vw, 900px); height: min(60vw, 900px); border-radius: 50%; will-change: transform; }
.aurora span:nth-child(1) {
  top: -25%; right: -12%;
  background: radial-gradient(circle, rgba(var(--secondary-rgb), .26), transparent 65%);
  animation: aurora-a 26s ease-in-out infinite alternate;
}
.aurora span:nth-child(2) {
  bottom: -30%; left: -15%;
  background: radial-gradient(circle, rgba(var(--primary-rgb), .2), transparent 65%);
  animation: aurora-b 34s ease-in-out infinite alternate;
}
@keyframes aurora-a { from { transform: translate3d(0, 0, 0) scale(1) rotate(0); } to { transform: translate3d(-8%, 12%, 0) scale(1.28) rotate(18deg); } }
@keyframes aurora-b { from { transform: translate3d(0, 0, 0) scale(1.15); } to { transform: translate3d(12%, -8%, 0) scale(.92); } }
#flagship { position: relative; overflow: hidden; }
#flagship > .container { position: relative; z-index: 1; }
#flagship .aurora { background: var(--grain) top left / 160px 160px repeat; }

/* Cursor-Spotlight im Hero: lässt das Punktraster unter der Maus aufleuchten. Position via JS (transform). */
.hero-spot {
  position: absolute; left: 0; top: 0; width: 520px; height: 520px; margin: -260px 0 0 -260px;
  border-radius: 50%; pointer-events: none; z-index: 1;
  opacity: 0; transition: opacity .5s ease; will-change: transform;
  background: radial-gradient(circle, rgba(110, 168, 255, .13), rgba(121, 40, 202, .07) 45%, transparent 70%);
}
@media (hover: none) { .hero-spot { display: none; } }

/* Ambient-Float des Demo-Fenster-Wrappers. */
.demo-window { position: relative; z-index: 1; }
@keyframes demo-float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-7px); } }

/* Endlos-Chat-Inszenierung: min-height hält die Kartenhöhe stabil, .demo-live macht JS-Klone sichtbar. */
.demo-body { min-height: 15.5rem; }
@media (max-width: 480px) { .demo-body { min-height: 17rem; } }
.demo-live { opacity: 1; transform: none; animation: none; }
.demo-typing {
  justify-self: start; display: flex; gap: 5px; padding: .8rem 1.05rem;
  background: rgba(255, 255, 255, .08); border: 1px solid var(--ink-border);
  border-radius: 14px; border-bottom-left-radius: 4px;
}
.demo-typing i { width: 6px; height: 6px; border-radius: 50%; background: var(--ink-text-3); animation: demo-dot 1s ease-in-out infinite; }
.demo-typing i:nth-child(2) { animation-delay: .15s; }
.demo-typing i:nth-child(3) { animation-delay: .3s; }
@keyframes demo-dot { 0%, 60%, 100% { transform: translateY(0); opacity: .5; } 30% { transform: translateY(-5px); opacity: 1; } }
/* animation:none neutralisiert fill-forwards von demo-in/demo-pop, damit die Ausblend-Transition greift.
   Generisch für alle Kinder eines Demo-Fensters (Chat-Bubbles, Agent-Steps, Chips). */
.demo-window .demo-out { opacity: 0; transform: translateY(-8px); transition: opacity .35s var(--ease), transform .35s var(--ease); animation: none; }
.demo-src.demo-pop { animation: demo-pop .4s var(--ease) both; }
@keyframes demo-pop { from { opacity: 0; transform: scale(.85) translateY(6px); } to { opacity: 1; transform: none; } }

/* ---------- Interaktiver Quellen-Chip + Dokument-Viewer ---------- */
/* Der Quellen-Chip ist ein Button: Klick öffnet den Original-Auszug im Dokument-Overlay. */
button.demo-src { cursor: pointer; font-family: inherit; transition: background .25s var(--ease), border-color .25s var(--ease); }
button.demo-src:hover { background: rgba(var(--primary-rgb), .24); border-color: rgba(var(--primary-rgb), .55); }
/* Ohne JS öffnet der Chip nichts — dann auch keine Klick-Affordance vortäuschen. */
html:not(.js) button.demo-src { cursor: default; pointer-events: none; }
html:not(.js) .demo-src-go { display: none; }
.demo-src-go { font-size: .65rem; opacity: .7; transition: transform .25s var(--ease); }
button.demo-src:hover .demo-src-go { transform: translateX(3px); }

.demo-doc {
  position: absolute; inset: 0; z-index: 6; display: flex; flex-direction: column;
  background: rgba(7, 10, 20, .6); backdrop-filter: blur(10px);
  border-radius: inherit; overflow: hidden;
  animation: doc-in .3s var(--ease);
}
.demo-doc[hidden] { display: none; }
@keyframes doc-in { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.demo-doc-bar {
  display: flex; align-items: center; gap: .55rem; padding: .7rem 1rem;
  background: rgba(7, 10, 20, .88); border-bottom: 1px solid var(--ink-border);
  color: var(--ink-text-2); font-size: var(--fs-xs); font-weight: 600;
}
.demo-doc-bar > i { color: #f87171; }
.demo-doc-name { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.demo-doc-close {
  display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0;
  width: 28px; height: 28px; border-radius: 8px; border: 1px solid var(--ink-border);
  background: rgba(255, 255, 255, .06); color: var(--ink-text); cursor: pointer;
  transition: var(--transition-fast); font-size: .8rem;
}
.demo-doc-close:hover { background: rgba(255, 255, 255, .16); }
/* Die "Papierseite": bewusst hell — echter Dokument-Look als Kontrast zur Ink-Fläche. */
.demo-doc-page {
  flex: 1; margin: 1rem 1.1rem; padding: 1.1rem 1.25rem; overflow: auto; min-height: 0;
  background: #fff; color: #1c2333; border-radius: 10px;
  box-shadow: 0 18px 44px rgba(0, 0, 0, .45);
  font-size: var(--fs-xs); line-height: 1.75;
}
.demo-doc-head { font-size: var(--fs-xs); font-weight: 700; letter-spacing: .02em; color: #0b1220; margin-bottom: .55rem; }
.demo-doc-body { margin: 0; color: #3a4358; }
.demo-doc-body mark {
  background: rgba(255, 214, 102, .8); color: #1c2333;
  padding: .06em .18em; border-radius: 3px;
  -webkit-box-decoration-break: clone; box-decoration-break: clone;
}
.demo-doc-foot { display: flex; align-items: center; gap: .5rem; padding: .65rem 1.1rem; color: var(--ink-text-3); font-size: var(--fs-xs); }
.demo-doc-foot i { color: #4ade80; }

/* ---------- Agent-Konsole (#flagship): Tool-Use-Steps im OS-Fenster ---------- */
/* .demo-titlebar-Präfix nötig: sonst verliert der Badge gegen ".demo-titlebar span" (0,1,1). */
.demo-titlebar .agent-os-badge {
  margin-left: auto; display: inline-flex; align-items: center; gap: .4rem; flex-shrink: 0;
  font-size: .68rem; font-weight: 650; letter-spacing: .04em; white-space: nowrap;
  color: #7ee0ff; background: rgba(0, 212, 255, .1);
  border: 1px solid rgba(0, 212, 255, .28);
  padding: .18rem .6rem; border-radius: var(--radius-full);
}
/* Schmale Screens: Badge weglassen, sonst läuft die Titlebar über. */
@media (max-width: 480px) { .agent-os-badge { display: none; } }
/* Statisches Markup (No-JS/Reduced-Motion) zeigt den fertigen Lauf; im Hero-Demo-Fenster
   gelten die demo-in-Delays — hier sollen die Bausteine sofort stehen. :not(demo-out/-pop/-live):
   während der JS-Inszenierung darf dieser Reset weder Fade-out noch Chip-Pop überstimmen. */
.agent-window .demo-msg:not(.demo-live):not(.demo-out),
.agent-window .demo-src:not(.demo-live):not(.demo-out):not(.demo-pop) { opacity: 1; transform: none; animation: none; }
.agent-steps { display: grid; gap: .45rem; }
.agent-step {
  background: rgba(255, 255, 255, .04); border: 1px solid var(--ink-border);
  border-radius: 10px; overflow: hidden; font-size: var(--fs-xs);
}
.agent-step summary {
  display: flex; align-items: center; gap: .6rem; padding: .55rem .75rem;
  cursor: pointer; list-style: none; color: var(--ink-text-2); font-weight: 550;
}
.agent-step summary::-webkit-details-marker { display: none; }
.agent-step summary:hover { background: rgba(255, 255, 255, .05); color: var(--ink-text); }
/* overflow:hidden der Step-Karte würde den Standard-Fokusring (offset 3px) wegclippen — nach innen legen. */
.agent-step summary:focus-visible { outline-offset: -3px; }
.step-ico {
  width: 22px; height: 22px; border-radius: 6px; flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(var(--primary-rgb), .16); color: #8ec1ff; font-size: .62rem;
}
.step-label { flex: 1; min-width: 0; }
.step-state { color: #4ade80; font-size: .7rem; flex-shrink: 0; }
.step-chev { color: var(--ink-text-3); font-size: .6rem; flex-shrink: 0; transition: transform .25s var(--ease); }
.agent-step[open] .step-chev { transform: rotate(180deg); }
.step-log {
  display: grid; gap: .25rem; padding: .6rem .75rem .7rem;
  border-top: 1px solid var(--ink-border); background: rgba(0, 0, 0, .35);
}
.step-log code {
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
  font-size: .68rem; color: #9fd8a8; line-height: 1.5; word-break: break-word;
}
.step-log code:first-child { color: #7ee0ff; }
/* Laufender Schritt (nur während der JS-Inszenierung): Spinner statt Häkchen. */
.step-running .step-state i { display: none; }
.step-running .step-state::before {
  content: ""; display: block; width: 12px; height: 12px; border-radius: 50%;
  border: 2px solid rgba(142, 193, 255, .3); border-top-color: #8ec1ff;
  animation: step-spin .8s linear infinite;
}
@keyframes step-spin { to { transform: rotate(1turn); } }
.step-in { animation: demo-pop .35s var(--ease) both; }
.step-done .step-state { animation: stat-pop .4s var(--ease); }

/* Cursor-Spotlight auf Karten — Koordinaten via --cx/--cy aus dem Pointer-FX-Modul (site.js). */
@media (hover: hover) and (pointer: fine) {
  .js .card::after, .js .step::after, .js .lp-flag-feat::after {
    content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
    opacity: 0; transition: opacity .35s var(--ease);
    background: radial-gradient(280px circle at var(--cx, 50%) var(--cy, 50%), rgba(var(--primary-rgb), .10), transparent 65%);
  }
  .js .lp-flag-feat::after { background: radial-gradient(280px circle at var(--cx, 50%) var(--cy, 50%), rgba(110, 168, 255, .12), transparent 65%); }
  .js .card:hover::after, .js .step:hover::after, .js .lp-flag-feat:hover::after { opacity: 1; }
}

/* Settle-Pop nach dem Count-up (Klasse vergibt site.js). */
.stat-done { animation: stat-pop .45s var(--ease); }
@keyframes stat-pop { 0% { transform: scale(1); } 45% { transform: scale(1.07); } 100% { transform: scale(1); } }

/* Leuchtende Naht-Kanten: harte hell→ink-Schnitte werden zu lit edges. */
.section--ink, .marquee-section { position: relative; }
.section--ink::before, .marquee-section::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px; pointer-events: none;
  background: linear-gradient(90deg, transparent 5%, rgba(110, 168, 255, .55) 35%, rgba(181, 140, 255, .55) 65%, transparent 95%);
}
.section--ink::after, .marquee-section::after {
  content: ""; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: min(760px, 85%); height: 130px; pointer-events: none;
  background: radial-gradient(50% 100% at 50% 0, rgba(110, 168, 255, .10), transparent 70%);
}

/* ---------- Animations ---------- */
@keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
@keyframes fade-up { from { opacity: 0; transform: translateY(28px); } to { opacity: 1; transform: none; } }
@keyframes pulse-dot { 0%, 100% { box-shadow: 0 0 0 0 rgba(74, 222, 128, .35); } 50% { box-shadow: 0 0 0 5px rgba(74, 222, 128, 0); } }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  /* animation-delay:0 dazu, sonst bleibt z. B. der Hero bis zu 0,7s unsichtbar (fade-up mit "both"-Fill). */
  *, *::before, *::after { animation-duration: .01ms !important; animation-delay: 0s !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  /* [class] hebt die Spezifität über die Richtungs-Varianten (.reveal-l/-r/-s). */
  .js .reveal, .js .reveal[class] { opacity: 1; transform: none; }
  .demo-msg, .demo-src { opacity: 1; transform: none; }
  .js .marquee-track { animation: none; }
  /* Alternate-/Infinite-Loops würden vom globalen Kill an Zufallsposition eingefroren — sauber deaktivieren. */
  .aurora span, .step-running .step-state::before { animation: none; }
  .hero-spot { display: none; }
}

/* ---------- Small screens ---------- */
@media (max-width: 600px) {
  .hero h1 { font-size: clamp(2rem, 9vw, 2.7rem); }
  .hero .hero-sub { font-size: var(--fs-base); }
  .hero-buttons .btn { flex: 1 1 auto; }
}

/* iOS zoomt beim Fokussieren von Feldern mit < 16px Schriftgröße die ganze Seite —
   auf Touch-Geräten Formularfelder deshalb auf 1rem anheben. */
@media (max-width: 820px) {
  .input, input:not([type]), input[type="text"], input[type="email"], input[type="tel"], textarea {
    font-size: 1rem;
  }
}