/* ====================================================
   captureBarriereFrei – Design System
   ==================================================== */

/* ---- Custom Properties ---- */
:root {
  /* Colors – Dark (default) */
  --clr-bg:           #0b0f1a;
  --clr-surface:      #111827;
  --clr-surface-2:    #1a2235;
  --clr-border:       rgba(255,255,255,.08);
  --clr-text:         #e2e8f0;
  --clr-text-muted:   #94a3b8;
  --clr-text-faint:   #4b5563;

  /* Header backdrop */
  --clr-header-bg:    rgba(11,15,26,.85);

  --clr-primary:      #6366f1;
  --clr-primary-dark: #4f46e5;
  --clr-cyan:         #06b6d4;
  --clr-teal:         #14b8a6;
  --clr-rose:         #f43f5e;
  --clr-amber:        #f59e0b;
  --clr-purple:       #a855f7;

  /* Gradients */
  --grad-hero:   linear-gradient(135deg, #0b0f1a 0%, #111827 60%, #0f172a 100%);
  --grad-brand:  linear-gradient(135deg, var(--clr-primary), var(--clr-cyan));
  --grad-text:   linear-gradient(90deg, var(--clr-primary), var(--clr-cyan));

  /* Spacing */
  --gap-xs: .5rem;
  --gap-sm: 1rem;
  --gap-md: 1.5rem;
  --gap-lg: 2.5rem;
  --gap-xl: 4rem;
  --gap-2xl: 7rem;

  /* Layout */
  --max-w: 1140px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;

  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', ui-monospace, monospace;

  /* Shadows */
  --shadow-card: 0 4px 32px rgba(0,0,0,.45);
  --shadow-glow: 0 0 40px rgba(99,102,241,.15);
}

/* ---- Light Mode – [data-theme="light"] ---- */
[data-theme="light"] {
  --clr-bg:          #f1f5f9;
  --clr-surface:     #ffffff;
  --clr-surface-2:   #f8fafc;
  --clr-border:      rgba(0,0,0,.09);
  --clr-text:        #1e293b;
  --clr-text-muted:  #64748b;
  --clr-text-faint:  #94a3b8;
  --clr-header-bg:   rgba(255,255,255,.88);
  --grad-hero:       linear-gradient(135deg, #f1f5f9 0%, #ffffff 60%, #f8fafc 100%);
  --shadow-card:     0 4px 32px rgba(0,0,0,.10);
  --shadow-glow:     0 0 40px rgba(99,102,241,.08);
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: clamp(15px, 1rem, 18px);
  line-height: 1.7;
  background-color: var(--clr-bg);
  color: var(--clr-text);
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; }

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

ul { list-style: none; }

/* ---- Focus styles (WCAG 2.4.7) ---- */
:focus-visible {
  outline: 2px solid var(--clr-primary);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---- Skip Link ---- */
.skip-link {
  position: absolute;
  top: -60px;
  left: 1rem;
  padding: .5rem 1rem;
  background: var(--clr-primary);
  color: #fff;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  font-weight: 600;
  z-index: 1000;
  transition: top .2s;
}
.skip-link:focus { top: 0; outline: none; }

/* ---- Layout helpers ---- */
.section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gap-md);
}

/* ==================================================
   HEADER
   ================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--clr-header-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--clr-border);
}

.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gap-md);
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap-md);
}

/* Brand */
.brand {
  display: flex;
  align-items: center;
  gap: .6rem;
  flex-shrink: 0;
}
.brand-icon svg { flex-shrink: 0; }
.brand-name {
  font-size: 1.05rem;
  letter-spacing: -.02em;
  color: var(--clr-text);
}
.brand-name strong { color: var(--clr-text); font-weight: 700; }

/* Header nav */
.site-header nav ul {
  display: flex;
  gap: var(--gap-xs);
  align-items: center;
}
.site-header nav a {
  padding: .45rem .9rem;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  color: var(--clr-text-muted);
  transition: color .2s, background .2s;
}
.site-header nav a:hover { color: var(--clr-text); background: rgba(255,255,255,.06); }
.nav-cta {
  background: var(--grad-brand) !important;
  color: #fff !important;
  font-weight: 600;
  padding: .45rem 1.1rem !important;
}
.nav-cta:hover { opacity: .9; background: var(--grad-brand); }

.nav-git {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .35rem .75rem !important;
  border: 1px solid var(--clr-border);
  border-radius: 6px;
  font-size: .875rem;
  color: var(--clr-text-muted) !important;
  transition: border-color .2s, color .2s, background .2s;
}
.nav-git:hover {
  border-color: #6366f1;
  color: #6366f1 !important;
  background: rgba(99,102,241,.06);
}
.nav-git svg { flex-shrink: 0; }

/* ==================================================
   HERO
   ================================================== */
.hero {
  position: relative;
  min-height: min(620px, 80vh);
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--gap-lg);
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--gap-2xl) var(--gap-md);
  overflow: hidden;
}

/* Decorative background grid */
.hero-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(99,102,241,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,102,241,.06) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 0%, black 40%, transparent 100%);
  pointer-events: none;
}

.hero-inner { position: relative; }

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: var(--gap-md);
}

.badge {
  display: inline-block;
  padding: .25rem .75rem;
  border: 1px solid var(--clr-border);
  border-radius: 100px;
  font-size: .78rem;
  font-weight: 500;
  color: var(--clr-text-muted);
  background: rgba(255,255,255,.04);
  letter-spacing: .04em;
  text-transform: uppercase;
}

.hero-title {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.04em;
  color: var(--clr-text);
  margin-bottom: var(--gap-md);
}

.gradient-text {
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--clr-text-muted);
  max-width: 480px;
  line-height: 1.7;
  margin-bottom: var(--gap-lg);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-sm);
  align-items: center;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.6rem;
  background: var(--grad-brand);
  color: #fff;
  font-weight: 600;
  font-size: .95rem;
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 20px rgba(99,102,241,.35);
  transition: opacity .2s, transform .2s, box-shadow .2s;
}
.btn-primary:hover { opacity: .9; transform: translateY(-2px); box-shadow: 0 8px 28px rgba(99,102,241,.45); }
.btn-primary:focus-visible { outline-color: var(--clr-cyan); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  padding: .75rem 1.4rem;
  border: 1px solid var(--clr-border);
  color: var(--clr-text-muted);
  font-size: .95rem;
  border-radius: var(--radius-sm);
  transition: border-color .2s, color .2s, background .2s;
}
.btn-ghost:hover { border-color: rgba(255,255,255,.2); color: var(--clr-text); background: rgba(255,255,255,.04); }

/* Code window */
.hero-visual { position: relative; }

.code-window {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

.code-window-bar {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1rem;
  background: var(--clr-surface-2);
  border-bottom: 1px solid var(--clr-border);
}

.dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}
.dot.red    { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green  { background: #28c840; }

.code-window-title {
  margin-left: .5rem;
  font-size: .8rem;
  color: var(--clr-text-faint);
  font-family: var(--font-mono);
}

.code-window-body {
  padding: 1.5rem;
  font-family: var(--font-mono);
  font-size: .88rem;
  line-height: 1.75;
  overflow-x: auto;
  color: var(--clr-text);
}
.code-window-body code { white-space: pre; }

.token-bracket  { color: var(--clr-text-muted); }
.token-brace    { color: var(--clr-text-muted); }
.token-key      { color: var(--clr-cyan); }
.token-string   { color: #86efac; }
.token-colon    { color: var(--clr-text-faint); }
.token-comma    { color: var(--clr-text-faint); }

/* ==================================================
   FEATURES
   ================================================== */
.features-section {
  padding: var(--gap-2xl) 0;
  border-top: 1px solid var(--clr-border);
}

.section-label {
  display: inline-block;
  font-size: .78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--clr-primary);
  margin-bottom: .75rem;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -.03em;
  color: var(--clr-text);
  margin-bottom: var(--gap-xl);
  line-height: 1.2;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--gap-md);
}

.feature-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: var(--gap-lg);
  transition: border-color .25s, transform .25s, box-shadow .25s;
}
.feature-card:hover {
  border-color: rgba(99,102,241,.35);
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(0,0,0,.3), 0 0 0 1px rgba(99,102,241,.1);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  margin-bottom: var(--gap-md);
}
.feature-icon--purple { background: rgba(168,85,247,.15); color: #c084fc; }
.feature-icon--cyan   { background: rgba(6,182,212,.15);  color: #22d3ee; }
.feature-icon--indigo { background: rgba(99,102,241,.15); color: #818cf8; }
.feature-icon--teal   { background: rgba(20,184,166,.15); color: #2dd4bf; }
.feature-icon--rose   { background: rgba(244,63,94,.15);  color: #fb7185; }
.feature-icon--amber  { background: rgba(245,158,11,.15); color: #fbbf24; }
.feature-icon--green  { background: rgba(34,197,94,.15);  color: #4ade80; }

.feature-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-text);
  margin-bottom: .5rem;
  letter-spacing: -.01em;
}
.feature-card p {
  font-size: .9rem;
  color: var(--clr-text-muted);
  line-height: 1.65;
  margin: 0;
}
.feature-card p a {
  color: var(--clr-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color .2s;
}
.feature-card p a:hover { color: var(--clr-cyan); }
.feature-card p code {
  font-family: var(--font-mono);
  font-size: .82rem;
  background: rgba(255,255,255,.07);
  padding: .1em .4em;
  border-radius: 4px;
  color: var(--clr-text);
}

/* Extra cards – hidden until expanded */
.feature-card--extra {
  display: none;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .35s ease, transform .35s ease;
}
.feature-card--extra.feature-card--visible {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

/* "Mehr anzeigen" button wrapper */
.features-more-wrap {
  display: flex;
  justify-content: center;
  margin-top: var(--gap-lg);
}

.features-more-btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .65rem 1.4rem;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--clr-text-muted);
  font-size: .9rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color .2s, color .2s, background .2s;
}
.features-more-btn:hover {
  border-color: var(--clr-primary);
  color: var(--clr-text);
  background: rgba(99,102,241,.07);
}
.features-more-btn:focus-visible {
  outline: 2px solid var(--clr-primary);
  outline-offset: 3px;
}
.features-more-icon {
  transition: transform .3s ease;
}
.features-more-btn.is-expanded .features-more-icon {
  transform: rotate(180deg);
}

/* ==================================================
   FORM SECTION
   ================================================== */
.form-section {
  padding: var(--gap-2xl) 0;
  border-top: 1px solid var(--clr-border);
}

.form-section-inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--gap-xl);
  align-items: start;
}

/* Left column */
.form-intro .section-title { margin-bottom: var(--gap-md); }

.form-intro > p {
  color: var(--clr-text-muted);
  font-size: .95rem;
  margin-bottom: var(--gap-lg);
}

.form-features-list {
  display: flex;
  flex-direction: column;
  gap: .6rem;
  margin-bottom: var(--gap-lg);
}
.form-features-list li {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-size: .9rem;
  color: var(--clr-text-muted);
}
.form-features-list svg { color: var(--clr-teal); flex-shrink: 0; }

/* Security notice */
.security-notice {
  display: flex;
  align-items: flex-start;
  gap: .65rem;
  background: rgba(99,102,241,.07);
  border: 1px solid rgba(99,102,241,.2);
  border-radius: var(--radius-sm);
  padding: .9rem 1rem;
  font-size: .85rem;
  color: var(--clr-text-muted);
  line-height: 1.5;
}
.security-notice svg { color: var(--clr-primary); flex-shrink: 0; margin-top: .1em; }
.security-notice p { margin: 0; }

/* Right column – form card */
.form-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-card);
}

/* Override form-styles.css background for dark theme */
form {
  background: transparent !important;
  box-shadow: none !important;
  padding: 0 !important;
  margin: 0 !important;
  max-width: 100% !important;
  min-height: 0 !important;
  gap: 0 !important;
}

/* Compact form groups */
.form-group {
  gap: 0.3rem !important;
  margin-bottom: 0.75rem !important;
}

/* Compact labels – minimal uppercase style matching section-label */
label {
  color: var(--clr-text) !important;
  font-size: 0.72rem !important;
  font-weight: 600 !important;
  letter-spacing: .07em !important;
  text-transform: uppercase !important;
}

/* Dark theme for inputs */
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
input[type="password"],
input[type="date"],
input[type="time"],
input[type="search"],
input[type="url"],
textarea,
select {
  background-color: var(--clr-surface-2) !important;
  border-color: var(--clr-border) !important;
  color: var(--clr-text) !important;
  padding: 0.58rem 0.875rem !important;
  border-radius: 8px !important;
  font-size: 0.9rem !important;
}

textarea {
  min-height: 88px !important;
  resize: vertical;
}

input::placeholder,
textarea::placeholder { color: var(--clr-text-faint) !important; }

input:hover:not([disabled]),
select:hover:not([disabled]),
textarea:hover:not([disabled]) {
  border-color: rgba(99,102,241,.4) !important;
  background-color: var(--clr-surface-2) !important;
}

input:not([type="checkbox"]):not([type="radio"]):focus,
select:focus,
textarea:focus {
  border-color: var(--clr-primary) !important;
  box-shadow: 0 0 0 3px rgba(99,102,241,.2) !important;
  background-color: var(--clr-surface-2) !important;
}

/* Checkbox-Fokus läuft über .checkbox-wrapper:focus-within in ui.js */
input[type="checkbox"]:focus,
input[type="radio"]:focus {
  outline: none;
}

/* Select arrow for dark bg */
select {
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E") !important;
  background-repeat: no-repeat !important;
  background-position: right 1rem center !important;
}

select option { background: var(--clr-surface-2); color: var(--clr-text); }

/* Submit button */
/* Form actions: Capture-Checkbox + Button übereinander, volle Breite */
.form-actions {
  flex-direction: column !important;
  align-items: stretch !important;
  gap: .75rem !important;
  padding-top: 1rem !important;
}

#submit-button {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .85rem 2rem;
  background: var(--grad-brand);
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(99,102,241,.35);
  transition: opacity .2s, transform .2s, box-shadow .2s;
  width: 100%;
  justify-content: center;
}
#submit-button:hover { opacity: .9; transform: translateY(-2px); box-shadow: 0 8px 28px rgba(99,102,241,.45); }
#submit-button:focus-visible { outline: 2px solid var(--clr-cyan); outline-offset: 3px; }
#submit-button:active { transform: translateY(0); }

/* ==================================================
   FOOTER
   ================================================== */
.site-footer {
  border-top: 1px solid var(--clr-border);
  padding: var(--gap-lg) 0;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gap-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--gap-sm);
}

.footer-brand p {
  font-size: .85rem;
  color: var(--clr-text-faint);
  margin-top: .3rem;
}

.site-footer nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: .25rem;
}
.site-footer nav a {
  padding: .35rem .75rem;
  font-size: .85rem;
  color: var(--clr-text-faint);
  border-radius: var(--radius-sm);
  transition: color .2s, background .2s;
}
.site-footer nav a:hover { color: var(--clr-text); background: rgba(255,255,255,.05); }

/* ==================================================
   UTILITIES
   ================================================== */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* Form status states */
[data-status="sending"] #submit-button { opacity: .7; pointer-events: none; }
[data-status="success"] #submit-button { background: linear-gradient(135deg, #14b8a6, #06b6d4); box-shadow: 0 4px 20px rgba(20,184,166,.35); }
[data-status="error"]   #submit-button { background: linear-gradient(135deg, #f43f5e, #e11d48); box-shadow: 0 4px 20px rgba(244,63,94,.35); }

/* ---- aria-live feedback ---- */
[aria-live].status-success { color: var(--clr-teal); }
[aria-live].status-error   { color: var(--clr-rose); }

/* Header controls group (theme-toggle + burger) */
.header-controls {
  display: flex;
  align-items: center;
  gap: .4rem;
  flex-shrink: 0;
}

/* ==================================================
   BURGER MENU TOGGLE BUTTON
   ================================================== */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--clr-text-muted);
  cursor: pointer;
  flex-shrink: 0;
  transition: background .2s, border-color .2s;
  z-index: 300;
  position: relative;
}

.menu-toggle:hover {
  background: rgba(99,102,241,.1);
  border-color: rgba(99,102,241,.35);
}

.menu-toggle:focus-visible {
  outline: 2px solid var(--clr-primary);
  outline-offset: 3px;
}

.burger-bar {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform .3s ease, opacity .3s ease, width .3s ease;
  transform-origin: center;
}

/* X animation when open */
.menu-toggle[aria-expanded="true"] .burger-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.menu-toggle[aria-expanded="true"] .burger-bar:nth-child(2) {
  opacity: 0;
  width: 0;
}
.menu-toggle[aria-expanded="true"] .burger-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ==================================================
   MOBILE FULL-SCREEN OVERLAY NAV
   ================================================== */
@media (max-width: 768px) {
  .menu-toggle { display: inline-flex; }

  #main-nav {
    position: fixed;
    inset: 0;
    z-index: 200;
    background: rgba(7, 10, 20, 0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--gap-md);

    /* Hidden by default */
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .3s ease, visibility .3s ease;
  }

  #main-nav.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    z-index: 9998;
  }

  /* Close button inside overlay */
  .nav-close {
    position: absolute;
    top: 1.1rem;
    right: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border: 1px solid rgba(255,255,255,.15);
    border-radius: var(--radius-sm);
    background: transparent;
    color: #fff;
    cursor: pointer;
    transition: background .2s, border-color .2s;
  }
  .nav-close:hover {
    background: rgba(255,255,255,.1);
    border-color: rgba(255,255,255,.35);
  }
  .nav-close:focus-visible {
    outline: 2px solid var(--clr-primary);
    outline-offset: 3px;
  }

  #main-nav ul {
    flex-direction: column;
    align-items: center;
    gap: .5rem;
    width: 100%;
    padding: 0 var(--gap-lg);
  }

  #main-nav li {
    width: 100%;
    text-align: center;
  }

  /* All links: bright white, large, readable */
  #main-nav a {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    font-size: 1.4rem;
    font-weight: 700;
    padding: .85rem 1.5rem !important;
    letter-spacing: -.02em;
    color: #ffffff !important;
    border-radius: var(--radius-md);
    transition: background .2s, transform .2s;
    border: 1px solid transparent !important;
  }

  #main-nav a:hover,
  #main-nav a:focus-visible {
    background: rgba(255,255,255,.08);
    border-color: rgba(255,255,255,.15) !important;
    transform: scale(1.02);
  }

  /* CTA pill */
  #main-nav .nav-cta {
    background: var(--grad-brand) !important;
    color: #fff !important;
    box-shadow: 0 4px 20px rgba(99,102,241,.4);
    border-color: transparent !important;
  }
  #main-nav .nav-cta:hover {
    opacity: .9;
    transform: scale(1.02);
  }

  /* Quellcode link – icon + text properly aligned */
  #main-nav .nav-git {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: .5rem !important;
    font-size: 1.1rem !important;
    font-weight: 600;
    color: rgba(255,255,255,.7) !important;
    border: 1px solid rgba(255,255,255,.2) !important;
    padding: .7rem 1.5rem !important;
  }
  #main-nav .nav-git svg {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
  }
  #main-nav .nav-git span {
    line-height: 1;
  }
  #main-nav .nav-git:hover {
    color: #fff !important;
    border-color: var(--clr-primary) !important;
    background: rgba(99,102,241,.15);
  }

  /* Lock scroll when overlay is open */
  body.menu-open {
    overflow: hidden;
  }

  /* Raise header stacking context + remove backdrop-filter containing-block */
  body.menu-open .site-header {
    z-index: 9999;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  /* Keep controls above overlay */
  .header-controls {
    position: relative;
    z-index: 300;
  }
}

/* Desktop: Overlay-Zustände vollständig zurücksetzen */
@media (min-width: 769px) {
  #main-nav {
    position: static !important;
    inset: auto !important;
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
    background: none !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    display: flex !important;
    flex-direction: row !important;
    z-index: auto !important;
  }
  .nav-close { display: none !important; }
  body.menu-open { overflow: auto; }
}

/* ==================================================
   RESPONSIVE
   ================================================== */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    padding: var(--gap-xl) var(--gap-md);
    min-height: auto;
  }
  .hero-visual { display: none; }
  .hero-subtitle { max-width: 100%; }

  .form-section-inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .header-inner { gap: var(--gap-sm); }

  .hero-title { font-size: 1.9rem; }
  .section-title { font-size: 1.5rem; }

  .feature-grid { grid-template-columns: 1fr; }

  .footer-inner { flex-direction: column; align-items: flex-start; }
}

/* ==================================================
   THEME TOGGLE
   ================================================== */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--clr-text-muted);
  cursor: pointer;
  flex-shrink: 0;
  transition: background .2s, border-color .2s, color .2s;
  padding: 0;
  box-shadow: none;
}

.theme-toggle:hover {
  background: rgba(99,102,241,.1);
  border-color: rgba(99,102,241,.35);
  color: var(--clr-text);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--clr-primary);
  outline-offset: 3px;
}

/* Icon-Sichtbarkeit je Theme */
.theme-toggle .icon-sun  { display: none; }
.theme-toggle .icon-moon { display: block; }

[data-theme="light"] .theme-toggle .icon-sun  { display: block; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }

/* Light-Mode: Form-Inputs & Labels überschreiben (dark overrides in style.css) */
[data-theme="light"] input[type="text"],
[data-theme="light"] input[type="email"],
[data-theme="light"] input[type="tel"],
[data-theme="light"] input[type="number"],
[data-theme="light"] input[type="password"],
[data-theme="light"] input[type="date"],
[data-theme="light"] input[type="time"],
[data-theme="light"] input[type="search"],
[data-theme="light"] input[type="url"],
[data-theme="light"] textarea,
[data-theme="light"] select {
  background-color: #ffffff !important;
  border-color: #e2e8f0 !important;
  color: #1e293b !important;
}

[data-theme="light"] input::placeholder,
[data-theme="light"] textarea::placeholder { color: #94a3b8 !important; }

[data-theme="light"] input:hover:not([disabled]),
[data-theme="light"] select:hover:not([disabled]),
[data-theme="light"] textarea:hover:not([disabled]) {
  border-color: rgba(99,102,241,.45) !important;
  background-color: #ffffff !important;
}

[data-theme="light"] input:focus,
[data-theme="light"] select:focus,
[data-theme="light"] textarea:focus {
  border-color: var(--clr-primary) !important;
  box-shadow: 0 0 0 3px rgba(99,102,241,.15) !important;
  background-color: #ffffff !important;
}

[data-theme="light"] label { color: #1e293b !important; }

[data-theme="light"] select {
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E") !important;
}

[data-theme="light"] select option { background: #ffffff; color: #1e293b; }

/* Hero Hintergrundgrid im Light Mode */
[data-theme="light"] .hero-bg {
  background-image:
    linear-gradient(rgba(99,102,241,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,102,241,.05) 1px, transparent 1px);
}

/* Code-Window im Light Mode */
[data-theme="light"] .code-window {
  box-shadow: 0 4px 32px rgba(0,0,0,.12);
}

[data-theme="light"] .code-window-body { color: #334155; }
[data-theme="light"] .token-key        { color: #0891b2; }
[data-theme="light"] .token-string     { color: #16a34a; }
[data-theme="light"] .token-bracket,
[data-theme="light"] .token-brace      { color: #64748b; }
[data-theme="light"] .token-colon,
[data-theme="light"] .token-comma      { color: #94a3b8; }

/* Submit-Button bleibt Gradient – kein Override nötig */

/* Aria-live Status im Light Mode */
[data-theme="light"] [aria-live].status-success { color: #0f766e; }
[data-theme="light"] [aria-live].status-error   { color: #dc2626; }

/* ==================================================
   SETUP / EINBINDEN – Akkordeon
   ================================================== */
.setup-section {
  padding: var(--gap-2xl) 0;
  border-top: 1px solid var(--clr-border);
}

.setup-accordion {
  display: flex;
  flex-direction: column;
  gap: .75rem;
  margin-top: var(--gap-lg);
}

/* Each step = <details> */
.setup-step {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  /* overflow:hidden entfernt – es clippte Fokus-Outlines (auch auf dem Container selbst).
     border-radius wird stattdessen direkt auf summary und step-body gesetzt. */
  transition: border-color .2s, box-shadow .2s;
}

.setup-step[open] {
  border-color: rgba(99,102,241,.35);
  box-shadow: 0 4px 24px rgba(0,0,0,.3), 0 0 0 1px rgba(99,102,241,.08);
}

/* Summary / trigger row */
.setup-step > summary {
  display: flex;
  align-items: center;
  gap: .85rem;
  padding: 1rem 1.25rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
  -webkit-user-select: none;
  transition: background .2s;
  /* Obere Ecken runden (ersetzt overflow:hidden auf dem Container) */
  border-radius: calc(var(--radius-md) - 1px) calc(var(--radius-md) - 1px) 0 0;
}

/* Wenn zugeklappt: alle vier Ecken runden */
.setup-step:not([open]) > summary {
  border-radius: calc(var(--radius-md) - 1px);
}

.setup-step > summary::-webkit-details-marker { display: none; }

/* Fokusring auf dem äußeren .setup-step-Container (WCAG 2.4.7).
   position+z-index verhindert, dass Geschwister den Outline überdecken. */
.setup-step:has(> summary:focus-visible) {
  outline: 2px solid var(--clr-primary);
  outline-offset: 3px;
  position: relative;
  z-index: 1;
}

.setup-step > summary:focus-visible {
  outline: none;
}

.setup-step > summary:hover {
  background: rgba(255,255,255,.03);
}

.setup-step[open] > summary {
  border-bottom: 1px solid var(--clr-border);
  background: rgba(99,102,241,.05);
}

/* Step number badge */
.step-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--grad-brand);
  color: #fff;
  font-size: .78rem;
  font-weight: 700;
  flex-shrink: 0;
  letter-spacing: 0;
}

/* Summary title text */
.step-title {
  flex: 1;
  font-size: .95rem;
  font-weight: 600;
  color: var(--clr-text);
  line-height: 1.4;
}

/* Chevron icon */
.step-chevron {
  flex-shrink: 0;
  color: var(--clr-text-faint);
  transition: transform .25s ease;
}

.setup-step[open] .step-chevron {
  transform: rotate(180deg);
}

/* Step body */
.step-body {
  padding: 1.25rem 1.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .9rem;
  /* Untere Ecken runden (ersetzt overflow:hidden auf dem Container) */
  border-radius: 0 0 calc(var(--radius-md) - 1px) calc(var(--radius-md) - 1px);
}

.step-body > p {
  font-size: .9rem;
  color: var(--clr-text-muted);
  line-height: 1.65;
  margin: 0;
}

/* Code block */
.step-code {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  font-family: var(--font-mono);
  font-size: .82rem;
  line-height: 1.8;
  color: var(--clr-text);
  overflow-x: auto;
  white-space: pre;
  margin: 0;
}

/* Note / callout variants */
.step-note {
  display: flex;
  align-items: flex-start;
  gap: .6rem;
  padding: .7rem 1rem;
  border-radius: var(--radius-sm);
  font-size: .85rem;
  line-height: 1.55;
  margin: 0;
}

.step-note::before {
  font-size: .95rem;
  flex-shrink: 0;
  margin-top: .05em;
}

.step-note--required {
  background: rgba(99,102,241,.08);
  border: 1px solid rgba(99,102,241,.2);
  color: var(--clr-text-muted);
}
.step-note--required::before { content: "✦"; color: var(--clr-primary); }

.step-note--optional {
  background: rgba(20,184,166,.07);
  border: 1px solid rgba(20,184,166,.2);
  color: var(--clr-text-muted);
}
.step-note--optional::before { content: "◎"; color: var(--clr-teal); }

.step-note--skip {
  background: rgba(245,158,11,.07);
  border: 1px solid rgba(245,158,11,.2);
  color: var(--clr-text-muted);
}
.step-note--skip::before { content: "⊘"; color: var(--clr-amber); }

/* Unordered step list */
.step-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: .45rem;
}

.step-list li {
  display: flex;
  align-items: flex-start;
  gap: .55rem;
  font-size: .9rem;
  color: var(--clr-text-muted);
  line-height: 1.55;
}

.step-list li::before {
  content: "›";
  color: var(--clr-primary);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: .05em;
}

/* ==================================================
   SETUP AKKORDEON – Light Mode Overrides
   ================================================== */
[data-theme="light"] .setup-step {
  background: #ffffff;
  border-color: rgba(0,0,0,.08);
}

[data-theme="light"] .setup-step[open] {
  border-color: rgba(99,102,241,.3);
  box-shadow: 0 4px 20px rgba(0,0,0,.08), 0 0 0 1px rgba(99,102,241,.08);
}

[data-theme="light"] .setup-step > summary:hover {
  background: rgba(0,0,0,.02);
}

[data-theme="light"] .setup-step[open] > summary {
  background: rgba(99,102,241,.04);
  border-bottom-color: rgba(0,0,0,.07);
}

[data-theme="light"] .step-code {
  background: #f8fafc;
  border-color: #e2e8f0;
  color: #334155;
}

[data-theme="light"] .step-note--required {
  background: rgba(99,102,241,.05);
  border-color: rgba(99,102,241,.2);
}

[data-theme="light"] .step-note--optional {
  background: rgba(20,184,166,.05);
  border-color: rgba(20,184,166,.18);
}

[data-theme="light"] .step-note--skip {
  background: rgba(245,158,11,.05);
  border-color: rgba(245,158,11,.2);
}

/* Responsive – Akkordeon schmaler */
@media (max-width: 600px) {
  .setup-step > summary { padding: .85rem 1rem; gap: .65rem; }
  .step-body { padding: 1rem 1rem 1.25rem; }
  .step-code { font-size: .78rem; padding: .75rem 1rem; }
}