/* ============================================================
   InnovationFilm — Custom CSS (Vanilla, No Framework)
   ============================================================ */

/* --- CSS Custom Properties --- */
:root {
  --bg-deep: #07070e;
  --bg-surface: #0e0e18;
  --bg-card: #141420;
  --bg-card-hover: #1a1a2a;
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-medium: rgba(255, 255, 255, 0.10);
  --text-primary: #e8e8f0;
  --text-secondary: #9a9ab0;
  --text-muted: #5e5e72;
  --accent: #00e5c3;
  --accent-glow: rgba(0, 229, 195, 0.15);
  --accent-strong: rgba(0, 229, 195, 0.30);
  --accent-secondary: #7c6ff7;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-heading: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
  position: relative;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.15;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}

img, svg { display: block; max-width: 100%; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  text-decoration: none;
}

.btn--primary {
  background: var(--accent);
  color: #07070e;
  box-shadow: 0 4px 24px var(--accent-glow);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 36px var(--accent-strong);
}

.btn--ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border-medium);
}
.btn--ghost:hover {
  border-color: var(--accent);
  background: var(--accent);
  color: #07070e;
}

.btn--lg {
  padding: 18px 40px;
  font-size: 1.05rem;
}

/* --- Section Titles --- */
.section__title {
  font-size: clamp(2rem, 4vw, 3rem);
  text-align: center;
  margin-bottom: 60px;
  letter-spacing: -0.02em;
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  transition: background 0.4s, box-shadow 0.4s, padding 0.4s;
}
.nav--scrolled {
  background: rgba(7, 7, 14, 0.85);
  backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--border-subtle);
  padding: 10px 0;
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__logo {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}
.nav__logo span { color: var(--accent); }
.nav__right {
  display: flex;
  align-items: center;
  gap: 20px;
}
/* --- Nav Dropdown --- */
.nav__dd {
  position: relative;
}
.nav__dd-trigger {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 50px;
  border: 1.5px solid var(--accent);
  background: rgba(0, 229, 195, 0.06);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.nav__dd-trigger:hover {
  background: var(--accent);
  color: #07070e;
}
.nav__dd-trigger:hover .nav__dd-arrow { color: #07070e; }
.nav__dd-arrow {
  transition: transform 0.3s ease;
  color: var(--accent);
}
.nav__dd-trigger[aria-expanded="true"] .nav__dd-arrow {
  transform: rotate(180deg);
}
.nav__dd-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-4px);
  min-width: 170px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 6px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
  z-index: 100;
}
.nav__dd-trigger[aria-expanded="true"] + .nav__dd-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.nav__dd-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  transition: all var(--transition);
  border: 1.5px solid transparent;
}
.nav__dd-btn:hover {
  background: rgba(0, 229, 195, 0.04);
  color: var(--accent);
  border-color: rgba(0, 229, 195, 0.15);
}
.nav__dd-btn--call {
  color: var(--text-primary);
  border-color: var(--accent);
  background: rgba(0, 229, 195, 0.06);
}
.nav__dd-btn--call:hover {
  background: var(--accent);
  color: #07070e;
  border-color: var(--accent);
}
.nav__list {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}
.nav__link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
}
.nav__link:hover { color: var(--text-primary); }
.nav__link--active {
  color: var(--accent) !important;
}
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav__toggle span {
  width: 26px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}
.nav__toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav__toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 140px 0 80px;
  overflow: hidden;
}
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 40%, black 30%, transparent 70%);
}
.hero__particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
}
.hero__overline {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}
.hero__title {
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}
.hero__title-accent {
  color: var(--accent);
}
.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 16px;
  line-height: 1.7;
}
.hero__audience {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-bottom: 40px;
}
.hero__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.hero__scroll {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
}
.hero__scroll span {
  display: block;
  width: 24px;
  height: 40px;
  border: 2px solid var(--border-medium);
  border-radius: 12px;
  position: relative;
}
.hero__scroll span::after {
  content: '';
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background: var(--accent);
  border-radius: 2px;
  animation: scrollPulse 1.8s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { top: 8px; opacity: 1; }
  50% { top: 20px; opacity: 0.3; }
}

/* ============================================================
   USP GRID
   ============================================================ */
.usp__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 880px;
  margin: 0 auto;
}
.usp__card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.usp__card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(400px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    var(--accent-glow), transparent 50%);
  opacity: 0;
  transition: opacity var(--transition);
}
.usp__card:hover::before { opacity: 1; }
.usp__card:hover {
  border-color: rgba(0, 229, 195, 0.25);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}
.usp__icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 229, 195, 0.08);
  border-radius: var(--radius-sm);
  margin-bottom: 18px;
  color: var(--accent);
  position: relative;
  z-index: 1;
}
.usp__card h3 {
  font-size: 1.05rem;
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
}
.usp__card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  position: relative;
  z-index: 1;
}

/* ============================================================
   SECTION DIVIDER (SVG Wave)
   ============================================================ */
.divider {
  line-height: 0;
  background: var(--bg-surface);
}
.divider svg {
  width: 100%;
  height: 60px;
}
.divider svg path { fill: var(--bg-deep); }
.divider--reverse { background: var(--bg-deep); }
.divider--reverse svg path { fill: var(--bg-surface); }



/* ============================================================
   DREI FORMATE + KALKULATOR
   ============================================================ */
.formate {
  background: var(--bg-surface);
}
.kalkulator__intro {
  text-align: center;
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 640px;
  margin: -30px auto 48px;
  line-height: 1.7;
}

/* --- Product Cards (Option B) --- */
.product-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 1100px;
  margin: 0 auto;
}
.product-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}
.product-card:hover {
  border-color: rgba(0, 229, 195, 0.25);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}
.product-card--active {
  border-color: var(--accent);
  box-shadow: 0 0 24px var(--accent-glow);
}

/* Poster / Thumbnail Area */
.product-card__thumb {
  position: relative;
  aspect-ratio: 3 / 1;
  overflow: hidden;
}
.product-card__poster {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--bg-surface), var(--bg-card));
  transition: transform var(--transition);
}
.product-card__poster--vision {
  background: linear-gradient(135deg, #0e0e18 0%, #141b2e 50%, #0e0e18 100%);
}
.product-card__poster--summit {
  background: linear-gradient(135deg, #0e0e18 0%, #14222a 50%, #0e0e18 100%);
}
.product-card__poster--stage {
  background: linear-gradient(135deg, #0e0e18 0%, #1a1428 50%, #0e0e18 100%);
}
.product-card__poster-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 56px;
  height: 56px;
  color: rgba(0, 229, 195, 0.12);
  transition: all 0.5s ease;
  pointer-events: none;
}
.product-card:hover .product-card__poster-icon {
  color: rgba(0, 229, 195, 0.28);
  transform: translate(-50%, -50%) scale(1.08);
}
.product-card--active .product-card__poster-icon {
  color: rgba(0, 229, 195, 0.35);
}
.product-card:hover .product-card__poster {
  transform: scale(1.04);
}

/* Price Badge */
.product-card__badge {
  position: absolute;
  top: 10px;
  right: 10px;
  padding: 3px 12px;
  background: rgba(7, 7, 14, 0.75);
  backdrop-filter: blur(6px);
  border-radius: 20px;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  z-index: 2;
}

/* Card Body */
.product-card__body {
  padding: 22px 22px 24px;
  text-align: center;
}
.product-card__name {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 0;
}
.product-card__name span { color: var(--accent); }
.product-card__sub {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.product-card__desc {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 14px;
}
.product-card__desc strong { color: var(--accent); font-weight: 600; }
.product-card__cta { width: 100%; }

/* --- Questions --- */
.calc__qbox {
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.calc__qbox-label {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(0, 229, 195, 0.05);
  padding: 10px 20px;
  border-bottom: 1px solid rgba(0, 229, 195, 0.1);
}
.calc__prompt {
  text-align: center;
  font-size: 0.92rem;
  color: var(--text-muted);
  padding: 32px 20px;
  margin: 0;
}
.calc__questions {
  padding: 24px 24px 4px;
  display: none;
  height: 210px;
  overflow: hidden;
}
.calc__questions--visible { display: block; }
.calc__qset { display: none; }
.calc__qset--active { display: block; }
.calc__divider {
  border: none;
  border-top: 1px solid var(--border-subtle);
  margin: 0 24px;
}
.calc__q {
  margin-bottom: 28px;
}
.calc__q > label {
  display: block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 10px;
  color: var(--text-primary);
}

/* Slider */
.calc__slider-row {
  display: flex;
  align-items: center;
  gap: 14px;
}
.calc__slider {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  background: var(--border-subtle);
  border-radius: 3px;
  outline: none;
}
.calc__slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  box-shadow: 0 0 12px var(--accent-glow);
}
.calc__slider::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: none;
}
.calc__slider-val {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  min-width: 28px;
  text-align: center;
}

/* Radio & Checkbox Groups */
.calc__radio-group,
.calc__check-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.calc__radio,
.calc__check {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: all var(--transition);
}
.calc__radio:hover,
.calc__check:hover {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-primary);
}
.calc__radio:has(input:checked),
.calc__check:has(input:checked) {
  background: rgba(0, 229, 195, 0.05);
  border-color: rgba(0, 229, 195, 0.2);
  color: var(--text-primary);
}
.calc__radio input,
.calc__check input {
  accent-color: var(--accent);
  width: 16px;
  height: 16px;
}

/* --- Result --- */
.calc__result {
  text-align: center;
  padding: 28px 24px 32px;
}
.calc__result-price {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}
/* Result CTA */
.calc__result-note {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.calc__result-cta {
  margin-top: 28px;
}

/* --- Calculator Wrapper (always visible) --- */
.calc__wrapper {
  max-width: 1100px;
  margin: 60px auto 0;
}
.calc__wrapper--visible {
  /* kept for JS compatibility */
}

/* --- Upsell-Section (inside questions) --- */
.calc__upsell-section {
  margin-top: 0;
  padding: 0;
}
.calc__upsell-section .calc__q:last-child {
  margin-bottom: 12px;
}
.calc__side-by-side {
  display: flex;
  gap: 20px;
}
.calc__side-by-side .calc__q {
  flex: 1;
  margin-bottom: 0;
}
.calc__upsell-heading {
  /* removed — replaced by per-item (optional) labels */
}
.calc__upsell-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}
.calc__optional {
  font-weight: 400;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.calc__check--toggle {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: var(--bg-surface);
  cursor: pointer;
  transition: all var(--transition);
}
.calc__check--toggle:hover {
  border-color: rgba(0, 229, 195, 0.25);
  background: rgba(0, 229, 195, 0.03);
}
.calc__check--toggle:has(input:checked) {
  border-color: rgba(0, 229, 195, 0.35);
  background: rgba(0, 229, 195, 0.06);
  box-shadow: 0 0 12px rgba(0, 229, 195, 0.06);
}
.calc__check-track {
  flex-shrink: 0;
  width: 42px;
  height: 24px;
  background: var(--border-medium);
  border-radius: 12px;
  position: relative;
  transition: background 0.25s ease;
}
.calc__check--toggle:has(input:checked) .calc__check-track {
  background: var(--accent);
}
.calc__check-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.25s ease;
  box-shadow: 0 1px 4px rgba(0,0,0,0.3);
}
.calc__check--toggle:has(input:checked) .calc__check-thumb {
  transform: translateX(18px);
}
.calc__check--toggle input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.calc__check-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.4;
}
.calc__check--toggle:has(input:checked) .calc__check-label {
  color: var(--text-primary);
}
.calc__divider {
  /* removed */
}


/* --- Shared Trust Cards --- */
.pricing__card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  text-align: center;
  transition: all var(--transition);
}
.pricing__card:hover {
  border-color: var(--border-medium);
  transform: translateY(-3px);
}
.pricing__card-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  color: var(--accent);
  background: rgba(0, 229, 195, 0.06);
  border-radius: 50%;
}
.pricing__card h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}
.pricing__card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* --- Kalkulator Footnote --- */
.kalkulator__footnote {
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 32px;
  line-height: 1.6;
}

/* ============================================================
   4 SCHRITTE TIMELINE
   ============================================================ */
.schritte { background: var(--bg-surface); }
.schritte__timeline {
  max-width: 700px;
  margin: 0 auto;
  position: relative;
}
.schritte__timeline::before {
  content: '';
  position: absolute;
  left: 27px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--accent-secondary), var(--accent));
}
.schritte__step {
  display: flex;
  gap: 28px;
  margin-bottom: 48px;
  position: relative;
}
.schritte__step:last-child { margin-bottom: 0; }
.schritte__step-number {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent);
  z-index: 1;
  transition: all var(--transition);
}
.schritte__step:hover .schritte__step-number {
  background: var(--accent);
  color: #07070e;
  box-shadow: 0 0 24px var(--accent-glow);
}
.schritte__step-content h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
}
.schritte__step-content p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
}
.schritte__step-content strong { color: var(--accent); font-weight: 600; }
.schritte__highlight {
  transition: all var(--transition);
}
.schritte__step:hover .schritte__highlight {
  color: var(--accent);
  text-shadow: 0 0 12px var(--accent-glow);
}

/* ============================================================
   FAQ ACCORDION
   ============================================================ */
.faq {
  background: var(--bg-deep);
}
.faq__list {
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq__item {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-card);
  transition: border-color var(--transition);
}
.faq__item:hover { border-color: var(--border-medium); }
.faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-primary);
  text-align: left;
  transition: color var(--transition);
}
.faq__question:hover { color: var(--accent); }
.faq__question svg {
  flex-shrink: 0;
  transition: transform 0.35s ease;
  color: var(--text-muted);
}
.faq__question[aria-expanded="true"] svg {
  transform: rotate(180deg);
  color: var(--accent);
}
.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.faq__answer p {
  padding: 0 24px 20px;
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ============================================================
   FINAL CTA
   ============================================================ */
.cta {
  background: var(--bg-surface);
  text-align: center;
  position: relative;
  overflow: hidden;
  padding: 120px 0;
}
.cta__glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow), transparent 70%);
  pointer-events: none;
}
.cta__title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin-bottom: 36px;
  position: relative;
  z-index: 1;
}
.cta__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
  position: relative;
  z-index: 1;
}
.cta__contact {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}
.cta__contact-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.92rem;
  color: var(--text-secondary);
  transition: color var(--transition);
}
.cta__contact-link:hover { color: var(--accent); }
.cta__response {
  font-size: 0.88rem;
  color: var(--text-muted);
  position: relative;
  z-index: 1;
}

/* ============================================================
   STICKY MOBILE CTA
   ============================================================ */
.sticky-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999;
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
  background: rgba(7, 7, 14, 0.92);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--border-subtle);
  gap: 12px;
}
.sticky-cta__btn {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 16px;
  border-radius: 50px;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition);
}
.sticky-cta__btn--call {
  background: var(--accent);
  color: #07070e;
  box-shadow: 0 4px 16px var(--accent-glow);
}
.sticky-cta__btn--calc {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border-medium);
}
.sticky-cta__btn--calc:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ============================================================
   REFERENZEN GRID
   ============================================================ */
.referenzen {
  background: var(--bg-deep);
}

.ref__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 1100px;
  margin: 0 auto;
}

.ref__card {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  border: 1px solid var(--border-subtle);
  background: var(--bg-card);
  transition: transform 0.4s ease, border-color var(--transition), box-shadow var(--transition);
}
.ref__card:hover {
  border-color: rgba(0, 229, 195, 0.25);
  transform: scale(1.02);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
}
.ref__card:active {
  transform: scale(0.98);
}

.ref__thumb {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: saturate(0.15) brightness(0.4);
  transition: filter 0.5s ease, transform 0.5s ease;
}
.ref__card:hover .ref__thumb {
  transform: scale(1.04);
  filter: none;
}

.ref__play {
  position: absolute;
  bottom: 12px;
  left: 12px;
  transform: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: transparent;
  border: 2px solid var(--accent);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.8;
  transition: all 0.35s ease;
  pointer-events: none;
}
.ref__card:hover .ref__play {
  opacity: 1;
  background: var(--accent);
  color: #07070e;
  border-color: var(--accent);
  transform: scale(1.06);
  box-shadow: 0 0 32px var(--accent-glow);
}
.ref__play svg {
  margin-left: 2px;
  width: 16px;
  height: 16px;
}
}

/* Gradient placeholders (fallback until real thumbnails added) */
.ref__thumb--0 { background-image: linear-gradient(135deg, #0e0e18 0%, #1a1e2e 50%, #0e0e18 100%); }
.ref__thumb--1 { background-image: linear-gradient(135deg, #0e0e18 0%, #1e1a28 50%, #0e0e18 100%); }
.ref__thumb--2 { background-image: linear-gradient(135deg, #0e0e18 0%, #14222a 50%, #0e0e18 100%); }
.ref__thumb--3 { background-image: linear-gradient(135deg, #0e0e18 0%, #1a281a 50%, #0e0e18 100%); }
.ref__thumb--4 { background-image: linear-gradient(135deg, #0e0e18 0%, #28201a 50%, #0e0e18 100%); }
.ref__thumb--5 { background-image: linear-gradient(135deg, #0e0e18 0%, #1a2428 50%, #0e0e18 100%); }
.ref__thumb--6 { background-image: linear-gradient(135deg, #0e0e18 0%, #181a2c 50%, #0e0e18 100%); }
.ref__thumb--7 { background-image: linear-gradient(135deg, #0e0e18 0%, #2c1a1a 50%, #0e0e18 100%); }
.ref__thumb--8 { background-image: linear-gradient(135deg, #0e0e18 0%, #1a2c20 50%, #0e0e18 100%); }

/* ============================================================
   LIGHTBOX
   ============================================================ */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}
.lightbox[aria-hidden="false"] {
  opacity: 1;
  visibility: visible;
}
.lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(7, 7, 14, 0.92);
  backdrop-filter: blur(24px);
}
.lightbox__backdrop::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(0,229,195,0.06), transparent 60%);
  pointer-events: none;
}
.lightbox__content {
  position: relative;
  width: 100%;
  max-width: 900px;
  background: transparent;
  border: none;
  border-radius: 0;
  overflow: visible;
  transform: scale(0.95);
  transition: transform 0.4s cubic-bezier(0.2, 0.9, 0.3, 1);
}
.lightbox[aria-hidden="false"] .lightbox__content {
  transform: scale(1);
}
.lightbox__close {
  position: absolute;
  top: -48px;
  right: 0;
  z-index: 10;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  font-size: 1.2rem;
}
.lightbox__close:hover {
  background: var(--accent);
  color: #07070e;
  border-color: var(--accent);
  transform: scale(1.08);
}
.lightbox__nav {
  position: absolute;
  top: 50%;
  z-index: 10;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(8px);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.lightbox__nav:hover {
  background: var(--accent);
  color: #07070e;
  border-color: var(--accent);
  transform: scale(1.1);
}
.lightbox__nav--prev { left: -64px; }
.lightbox__nav--next { right: -64px; }
.lightbox__nav svg { pointer-events: none; }
.lightbox__player {
  position: relative;
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(0, 229, 195, 0.08);
}
@keyframes glowPulse {
  0%, 100% { box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6), 0 0 30px rgba(0, 229, 195, 0.06), 0 0 0 1px rgba(0, 229, 195, 0.08); }
  50%      { box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6), 0 0 50px rgba(0, 229, 195, 0.12), 0 0 0 1px rgba(0, 229, 195, 0.15); }
}
.lightbox[aria-hidden="false"] .lightbox__player {
  animation: glowPulse 3s ease-in-out infinite;
}
.lightbox__player::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-md);
  box-shadow: inset 0 0 0 1px rgba(0, 229, 195, 0.06);
  pointer-events: none;
  z-index: 2;
}
.lightbox__player video {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
}
.lightbox__info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 16px;
  padding: 0 4px;
}
.lightbox__title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}
.lightbox__counter {
  flex-shrink: 0;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--accent);
  background: rgba(0, 229, 195, 0.08);
  padding: 4px 12px;
  border-radius: 20px;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  text-align: center;
  padding: 32px 0;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.85rem;
  color: var(--text-muted);
}
.footer__tagline { margin-top: 6px; }
.footer__contact {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.footer__contact-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 50px;
  border: 1.5px solid var(--border-medium);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.85rem;
  transition: all var(--transition);
}
.footer__contact-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0, 229, 195, 0.04);
}

/* ============================================================
   SCROLL REVEAL ANIMATION
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2, 0.9, 0.3, 1);
}
.reveal--visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
}

@media (max-width: 768px) {
  body { padding-bottom: 70px; }
  .section { padding: 72px 0; }
  .section__title { margin-bottom: 40px; }

  .nav__dd-trigger { padding: 8px 12px; font-size: 0.78rem; }
  .nav__list {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    flex-direction: column;
    justify-content: center;
    gap: 28px;
    background: rgba(7, 7, 14, 0.97);
    backdrop-filter: blur(20px);
    transition: right 0.4s ease;
    padding: 40px;
    border-left: 1px solid var(--border-subtle);
  }
  .nav__list--open { right: 0; }
  .nav__toggle { display: flex; z-index: 1001; }

  .usp__grid,
  .product-cards,
  .kalkulator__trust-grid {
    grid-template-columns: 1fr;
  }
  .calc__wrapper {
    max-width: none;
    margin-top: 32px;
  }
  .ref__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .usp__grid { max-width: 480px; }

  .sticky-cta { display: flex; }

  .hero__actions { flex-direction: column; align-items: center; }
  .hero__actions .btn { width: 100%; max-width: 280px; }

  .schritte__step { gap: 18px; }
  .schritte__step-number { width: 44px; height: 44px; font-size: 1.1rem; }
  .schritte__timeline::before { left: 21px; }

  .cta__contact { flex-direction: column; align-items: center; gap: 14px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .ref__grid {
    grid-template-columns: 1fr;
  }
  .nav__dd-trigger span { display: none; }
  .nav__dd-trigger { padding: 10px; }
  .calc__qbox .calc__questions { padding: 16px; }
  .lightbox { padding: 16px; }
  .lightbox__nav--prev { left: 8px; }
  .lightbox__nav--next { right: 8px; }
  .lightbox__nav { width: 36px; height: 36px; }
  .lightbox__close { top: 8px; right: 8px; }
  .schritte__step-number { width: 38px; height: 38px; font-size: 1rem; }
  .schritte__timeline::before { left: 18px; }
  .schritte__step { gap: 14px; }
  .faq__question { padding: 16px 18px; font-size: 0.92rem; }
  .faq__answer p { padding: 0 18px 16px; }
  .sticky-cta { display: flex; }
}