/* ============================================================
   STRATIFY DESIGN SYSTEM v2
   Ein Token-Set für alle neuen Seiten. Ersetzt style.css /
   feature-page.css / webdesign.css schrittweise (Legacy-Seiten
   laden weiter ihre alten Dateien — keine Kollision, da alle
   v2-Klassen unter neuen Namen laufen).
   Typografie self-hosted (DSGVO): assets/fonts/*.woff2
   ============================================================ */

/* ---------- Fonts (variable, latin) ---------- */
@font-face {
  font-family: 'Inter';
  src: url('../assets/fonts/inter-var.woff2') format('woff2');
  font-weight: 300 800;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Space Grotesk';
  src: url('../assets/fonts/space-grotesk-var.woff2') format('woff2');
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'JetBrains Mono';
  src: url('../assets/fonts/jetbrains-mono-var.woff2') format('woff2');
  font-weight: 400 600;
  font-style: normal;
  font-display: swap;
}

/* ---------- Tokens ---------- */
:root {
  /* Farben */
  --ink: #0A0A0F;
  --bg: #FAFAFA;
  --surface: #FFFFFF;
  --surface-2: #F4F4F6;
  --text: #18181B;
  --muted: #6B7280;
  --faint: #D1D5DB;
  --line: rgba(10, 10, 15, 0.06);
  --line-strong: rgba(10, 10, 15, 0.10);

  --indigo: #4F46E5;
  --purple: #7C3AED;
  --cyan: #06B6D4;
  --green: #10B981;
  --amber: #F59E0B;
  --red: #EF4444;

  --grad: linear-gradient(135deg, #4F46E5 0%, #7C3AED 50%, #06B6D4 100%);
  --grad-warm: linear-gradient(135deg, #F59E0B 0%, #EF4444 100%);

  /* Schatten */
  --shadow-card: 0 1px 3px rgba(10,10,15,0.04), 0 12px 32px rgba(10,10,15,0.06);
  --shadow-elevated:
    0 1px 3px rgba(10,10,15,0.05),
    0 24px 48px rgba(10,10,15,0.08),
    0 48px 96px rgba(10,10,15,0.04);
  --shadow-phone:
    0 1px 1px rgba(255,255,255,0.6) inset,
    0 -1px 1px rgba(0,0,0,0.2) inset,
    0 30px 60px rgba(10,10,15,0.18),
    0 60px 120px rgba(10,10,15,0.10);

  /* Motion */
  --ease-soft: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-snap: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Typo */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Space Grotesk', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  /* Layout */
  --container: 1200px;
  --container-wide: 1320px;
  --gutter: clamp(20px, 4vw, 32px);
  --section-y: clamp(72px, 10vw, 128px);
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
}

/* ---------- Reset (lite) ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg, video, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
h1, h2, h3, h4, p, ul, ol, figure { margin: 0; }
ul[class], ol[class] { padding: 0; list-style: none; }

::selection { background: rgba(79, 70, 229, 0.18); }

/* Grundrauschen + Farbverläufe im Hintergrund */
.bg-aura {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 1000px 800px at 70% 25%, rgba(79, 70, 229, 0.05), transparent 65%),
    radial-gradient(ellipse 700px 500px at 25% 75%, rgba(6, 182, 212, 0.035), transparent 60%);
  pointer-events: none;
  z-index: 0;
}
.bg-noise {
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
  opacity: 0.02;
  pointer-events: none;
  z-index: 0;
  mix-blend-mode: multiply;
}

/* ---------- Typografie ---------- */
.h-display {
  font-family: var(--font-heading);
  font-size: clamp(38px, 5.4vw, 68px);
  font-weight: 700;
  line-height: 1.02;
  letter-spacing: -0.035em;
  color: var(--ink);
}
.h-1 {
  font-family: var(--font-heading);
  font-size: clamp(32px, 4.2vw, 52px);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: -0.03em;
  color: var(--ink);
}
.h-2 {
  font-family: var(--font-heading);
  font-size: clamp(26px, 3.2vw, 38px);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.025em;
  color: var(--ink);
}
.h-3 {
  font-family: var(--font-heading);
  font-size: clamp(19px, 2vw, 23px);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.015em;
  color: var(--ink);
}
.accent {
  background: var(--grad);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.accent-italic {
  background: var(--grad);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  font-style: italic;
  font-weight: 600;
}
.lead {
  font-size: clamp(16px, 1.35vw, 19px);
  line-height: 1.65;
  color: var(--muted);
}
.lead strong, .lead b { color: var(--ink); font-weight: 600; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 7px 14px 7px 11px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  box-shadow: var(--shadow-card);
}
.eyebrow-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--grad);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
  flex: none;
}

/* ---------- Layout ---------- */
.container { max-width: var(--container); margin: 0 auto; padding-inline: var(--gutter); }
.container-wide { max-width: var(--container-wide); margin: 0 auto; padding-inline: var(--gutter); }
.section { padding-block: var(--section-y); position: relative; z-index: 1; }
.section-head { max-width: 720px; margin-bottom: clamp(36px, 5vw, 56px); }
.section-head .eyebrow { margin-bottom: 20px; }
.section-head .lead { margin-top: 16px; }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head.center .lead { margin-inline: auto; }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(20px, 3vw, 32px); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(18px, 2.5vw, 28px); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(16px, 2vw, 24px); }
@media (max-width: 960px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 13px 22px;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 500;
  border: none;
  transition: transform 200ms var(--ease-snap), box-shadow 300ms var(--ease-soft), background 200ms var(--ease-soft);
}
.btn:active { transform: scale(0.98); }
.btn-primary {
  background: var(--ink);
  color: #fff;
  padding: 6px 6px 6px 22px;
  box-shadow: 0 1px 2px rgba(10,10,15,0.1), 0 8px 24px rgba(10,10,15,0.12);
}
.btn-primary .btn-arrow {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--grad);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  transition: transform 350ms var(--ease-spring);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(10,10,15,0.12), 0 16px 32px rgba(79, 70, 229, 0.2);
}
.btn-primary:hover .btn-arrow { transform: translateX(2px) translateY(-1px) scale(1.05); }
.btn-secondary {
  background: var(--surface);
  color: var(--ink);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-card);
}
.btn-secondary:hover { background: var(--surface-2); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--muted); padding-inline: 14px; }
.btn-ghost:hover { color: var(--ink); }

/* ---------- Navbar v2 ---------- */
.nav2 {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background 250ms var(--ease-soft), box-shadow 250ms var(--ease-soft), border-color 250ms var(--ease-soft);
  border-bottom: 1px solid transparent;
}
.nav2.scrolled {
  background: rgba(250, 250, 250, 0.82);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  backdrop-filter: saturate(1.4) blur(14px);
  border-bottom-color: var(--line);
}
.nav2-inner {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 14px var(--gutter);
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav2-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.nav2-logo img { width: 28px; height: 28px; border-radius: 7px; }
.nav2-links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.nav2-links a {
  padding: 8px 13px;
  border-radius: 100px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--muted);
  transition: color 160ms, background 160ms;
}
.nav2-links a:hover { color: var(--ink); background: rgba(10,10,15,0.045); }
.nav2-cta { margin-left: 8px; }
.nav2-burger {
  display: none;
  margin-left: auto;
  width: 42px; height: 42px;
  border-radius: 12px;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  align-items: center;
  justify-content: center;
  gap: 4px;
  flex-direction: column;
}
.nav2-burger span {
  display: block;
  width: 17px; height: 2px;
  border-radius: 2px;
  background: var(--ink);
  transition: transform 250ms var(--ease-snap), opacity 200ms;
}
/* Variante für Seiten mit dunklem Hero: helle Links, bis gescrollt wird */
.nav2.on-dark:not(.scrolled):not(.open) .nav2-logo { color: #fff; }
.nav2.on-dark:not(.scrolled):not(.open) .nav2-links a { color: rgba(255,255,255,0.72); }
.nav2.on-dark:not(.scrolled):not(.open) .nav2-links a:hover { color: #fff; background: rgba(255,255,255,0.09); }
.nav2.on-dark:not(.scrolled) .nav2-burger { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.2); }
.nav2.on-dark:not(.scrolled) .nav2-burger span { background: #fff; }

@media (max-width: 1020px) {
  .nav2-links { display: none; }
  .nav2-burger { display: inline-flex; }
  .nav2.open .nav2-links {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-elevated);
    padding: 10px var(--gutter) 18px;
    gap: 2px;
  }
  .nav2.open .nav2-links a { padding: 12px 14px; border-radius: 12px; font-size: 16px; }
  .nav2.open .nav2-cta { margin: 10px 0 0; }
  .nav2.open .nav2-burger span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
  .nav2.open .nav2-burger span:nth-child(2) { opacity: 0; }
  .nav2.open .nav2-burger span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
}

/* ---------- Karten ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(22px, 3vw, 32px);
  box-shadow: var(--shadow-card);
  transition: transform 250ms var(--ease-snap), box-shadow 350ms var(--ease-soft), border-color 250ms;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-elevated); border-color: var(--line-strong); }
.card-icon {
  width: 44px; height: 44px;
  border-radius: 13px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(79,70,229,0.10), rgba(6,182,212,0.10));
  color: var(--indigo);
  margin-bottom: 18px;
}
.card-icon svg { width: 22px; height: 22px; }
.card h3 { margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 15px; }
.card .more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--indigo);
}

/* KPI-Float-Card (aus dem Prototyp) */
.kpi-card {
  background: rgba(255,255,255,0.9);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px 18px;
  box-shadow: var(--shadow-elevated);
}
.kpi-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 4px;
}
.kpi-value {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
  line-height: 1.1;
}
.kpi-value.gradient {
  background: var(--grad);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.kpi-meta { font-size: 11.5px; color: var(--muted); margin-top: 3px; }

/* ---------- Chat-Bubbles (Produkt-Wahrheit) ---------- */
.chat {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.bubble {
  max-width: 85%;
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 13.5px;
  line-height: 1.45;
  box-shadow: 0 1px 2px rgba(10,10,15,0.06);
}
.bubble.in {
  align-self: flex-start;
  background: var(--surface);
  border: 1px solid var(--line);
  border-bottom-left-radius: 6px;
}
.bubble.out {
  align-self: flex-end;
  background: linear-gradient(135deg, #4F46E5, #6D28D9);
  color: #fff;
  border-bottom-right-radius: 6px;
}
.bubble .meta {
  display: block;
  margin-top: 4px;
  font-size: 10.5px;
  opacity: 0.65;
}
.chat-tag {
  align-self: center;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--surface-2);
  border-radius: 100px;
  padding: 4px 12px;
}

/* ---------- FAQ ---------- */
.faq-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  background: none;
  border: none;
  text-align: left;
  font-family: var(--font-heading);
  font-size: 16.5px;
  font-weight: 600;
  color: var(--ink);
}
.faq-q svg { flex: none; transition: transform 250ms var(--ease-snap); color: var(--muted); }
.faq-item.open .faq-q svg { transform: rotate(45deg); }
.faq-a {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 300ms var(--ease-snap);
}
.faq-item.open .faq-a { grid-template-rows: 1fr; }
.faq-a-inner { overflow: hidden; }
.faq-a p { padding: 0 22px 20px; color: var(--muted); font-size: 15px; }

/* ---------- Footer v2 ---------- */
.footer2 {
  position: relative;
  z-index: 1;
  background: var(--ink);
  color: #A1A1AA;
  margin-top: var(--section-y);
}
.footer2 a { color: #A1A1AA; transition: color 160ms; font-size: 14px; }
.footer2 a:hover { color: #fff; }
.footer2-inner {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: clamp(48px, 6vw, 72px) var(--gutter) 0;
  display: grid;
  grid-template-columns: 1.4fr repeat(4, 1fr);
  gap: clamp(24px, 4vw, 48px);
}
@media (max-width: 960px) { .footer2-inner { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .footer2-inner { grid-template-columns: 1fr; } }
.footer2-brand .nav2-logo { color: #fff; }
.footer2-brand p { font-size: 14px; margin-top: 14px; max-width: 300px; }
.footer2 h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #71717A;
  margin-bottom: 16px;
}
.footer2 ul li { margin-bottom: 10px; }
.footer2-bottom {
  max-width: var(--container-wide);
  margin: 0 auto;
  margin-top: clamp(36px, 5vw, 56px);
  padding: 22px var(--gutter);
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
}

/* ---------- Reveal-Animationen (dezent, einmalig) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 700ms var(--ease-soft), transform 700ms var(--ease-snap);
}
.reveal.in { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: 90ms; }
.reveal-d2 { transition-delay: 180ms; }
.reveal-d3 { transition-delay: 270ms; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .card, .btn, .btn-primary .btn-arrow { transition: none; }
}

/* ---------- Utility ---------- */
.mono { font-family: var(--font-mono); }
.muted { color: var(--muted); }
.center { text-align: center; }
.mt-8 { margin-top: 8px; } .mt-16 { margin-top: 16px; } .mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; } .mt-48 { margin-top: 48px; }
.flex { display: flex; } .items-center { align-items: center; }
.gap-8 { gap: 8px; } .gap-12 { gap: 12px; } .gap-16 { gap: 16px; } .gap-24 { gap: 24px; }
.wrap { flex-wrap: wrap; }
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}