/* ============================================================
   BUNTROCK — HANDWERK MIT SYSTEM & PROJEKTLEITUNG
   Design System: Modern Light Theme
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Inter:wght@300;400;500;600;700&display=swap');

/* ──────────────────────────────────────────────
   1. DESIGN TOKENS & RESET
   ────────────────────────────────────────────── */
:root {
  /* Color Palette - Premium Light Theme */
  --bg-main: #F8FAFC;
  --bg-surface: #FFFFFF;
  --bg-subtle: #F1F5F9;
  --bg-glass: rgba(255, 255, 255, 0.85);
  --bg-glass-card: rgba(255, 255, 255, 0.7);

  /* Brand Accents */
  --primary: #1E3A8A;         /* Deep Blueprint Navy */
  --primary-hover: #1E40AF;
  --primary-light: #EFF6FF;
  --accent: #2563EB;          /* Blueprint Royal Blue */
  --accent-glow: rgba(37, 99, 235, 0.15);
  
  --amber: #F59E0B;           /* Craft Gold/Amber */
  --amber-light: #FEF3C7;
  --amber-dark: #D97706;

  --emerald: #10B981;         /* Guarantee Green */
  --emerald-light: #D1FAE5;

  /* Typography Colors */
  --text-main: #0F172A;
  --text-muted: #475569;
  --text-light: #64748B;
  --text-inverse: #FFFFFF;

  /* Borders & Shadows */
  --border-light: #E2E8F0;
  --border-subtle: rgba(226, 232, 240, 0.8);
  --border-focus: #3B82F6;

  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 8px 24px -4px rgba(15, 23, 42, 0.06), 0 4px 8px -2px rgba(15, 23, 42, 0.03);
  --shadow-lg: 0 20px 40px -8px rgba(15, 23, 42, 0.08), 0 8px 16px -4px rgba(15, 23, 42, 0.04);
  --shadow-glow: 0 0 35px rgba(37, 99, 235, 0.12);

  /* Fonts */
  --font-heading: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;

  /* Layout */
  --max-width: 1280px;
  --header-height: 80px;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  /* Easing & Transitions */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;

  /* Global User Select Disable */
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

/* Allow text input selection in forms */
input, textarea, select, [contenteditable] {
  -webkit-user-select: auto;
  -moz-user-select: auto;
  -ms-user-select: auto;
  user-select: auto;
}

/* Kacheln & Tiles: Sauberer Cursor Pointer + User-Select None */
.slogan-card,
.comp-card,
.about-feat-item,
.trade-card,
.option-box,
.timeline-content,
.review-card,
.contact-card,
.stat-item,
.floating-badge,
.tab-btn,
.btn,
.gewerke-display,
.about-img-box,
.hero-media-wrapper,
.estimator-card,
.estimator-result,
.top-bar-item,
.brand-logo {
  cursor: pointer !important;
  -webkit-user-select: none !important;
  -moz-user-select: none !important;
  -ms-user-select: none !important;
  user-select: none !important;
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

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

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
  background: #CBD5E1;
  border-radius: var(--radius-full);
  border: 2px solid var(--bg-main);
}
::-webkit-scrollbar-thumb:hover {
  background: #94A3B8;
}

/* ──────────────────────────────────────────────
   2. REUSABLE UTILITIES & TYPOGRAPHY
   ────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-main);
  font-weight: 700;
  line-height: 1.2;
}

.text-gradient {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 50%, var(--amber-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-amber {
  color: var(--amber-dark);
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  font-family: var(--font-heading);
  letter-spacing: 0.02em;
}

.badge-primary {
  background: var(--primary-light);
  color: var(--accent);
  border: 1px solid rgba(37, 99, 235, 0.2);
}

.badge-amber {
  background: var(--amber-light);
  color: var(--amber-dark);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3.5rem auto;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  letter-spacing: -0.02em;
  margin-top: 1rem;
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.125rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.9rem 2rem;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--primary) 100%);
  color: var(--text-inverse);
  box-shadow: 0 10px 25px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(37, 99, 235, 0.35);
  background: linear-gradient(135deg, #3B82F6 0%, var(--primary) 100%);
}

.btn-amber {
  background: linear-gradient(135deg, var(--amber) 0%, var(--amber-dark) 100%);
  color: var(--text-inverse);
  box-shadow: 0 10px 25px rgba(245, 158, 11, 0.25);
}

.btn-amber:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(245, 158, 11, 0.35);
}

.btn-outline {
  background: var(--bg-surface);
  color: var(--text-main);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--primary-light);
  transform: translateY(-2px);
}

.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: 50%;
}

/* ──────────────────────────────────────────────
   3. HEADER & NAVIGATION
   ────────────────────────────────────────────── */
.top-bar {
  background: var(--primary);
  color: var(--text-inverse);
  font-size: 0.85rem;
  padding: 0.5rem 0;
  text-align: center;
  font-weight: 500;
  letter-spacing: 0.01em;
}

.top-bar-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.top-bar-info {
  display: flex;
  gap: 1.5rem;
}

.top-bar-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.navbar {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.95);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFF;
  font-weight: 800;
  font-size: 1.25rem;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--primary);
  line-height: 1;
}

.brand-tagline {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--amber-dark);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 2px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-muted);
  transition: color var(--transition-fast);
  position: relative;
  padding: 0.5rem 0;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  border-radius: var(--radius-full);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--text-main);
}

/* Scroll Progress Bar */
.scroll-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--amber));
  width: 0%;
  transition: width 0.1s ease-out;
}

/* ──────────────────────────────────────────────
   4. HERO SECTION
   ────────────────────────────────────────────── */
.hero {
  position: relative;
  padding: 4rem 0 6rem 0;
  background: radial-gradient(circle at 10% 20%, rgba(239, 246, 255, 0.8) 0%, rgba(248, 250, 252, 1) 90%);
  overflow: hidden;
}

.hero-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-top: 1.25rem;
  margin-bottom: 1.5rem;
  line-height: 1.12;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-subtitle strong {
  color: var(--text-main);
  font-weight: 600;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3rem;
}

.hero-stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  width: 100%;
  padding-top: 2rem;
  border-top: 1px solid var(--border-light);
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 0.35rem;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-light);
  font-weight: 500;
}

/* Hero Media / Visual Card */
.hero-media {
  position: relative;
}

.hero-media-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 4px solid var(--bg-surface);
}

.hero-img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.hero-media-wrapper:hover .hero-img {
  transform: scale(1.03);
}

.floating-badge {
  position: absolute;
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  border: 1px solid rgba(255, 255, 255, 0.8);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 5;
  animation: float 4s ease-in-out infinite alternate;
}

.badge-top-right {
  top: 1.5rem;
  right: -1.5rem;
}

.badge-bottom-left {
  bottom: 2rem;
  left: -1.5rem;
  animation-delay: -2s;
}

.floating-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--amber-light);
  color: var(--amber-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.floating-icon.blue {
  background: var(--primary-light);
  color: var(--accent);
}

.floating-text-main {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
}

.floating-text-sub {
  font-size: 0.8rem;
  color: var(--text-light);
}

@keyframes float {
  0% { transform: translateY(0px); }
  100% { transform: translateY(-10px); }
}

/* ──────────────────────────────────────────────
   5. SLOGAN BANNER (MARQUEE & CARDS)
   ────────────────────────────────────────────── */
.slogan-section {
  padding: 3rem 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.slogan-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

.slogan-card {
  background: var(--bg-main);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  transition: all var(--transition-normal);
}

.slogan-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}

.slogan-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--primary-light);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.slogan-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-main);
  line-height: 1.4;
}

/* ──────────────────────────────────────────────
   6. THE BUNTROCK PRINCIPLE (MANAGER VS CHAOS)
   ────────────────────────────────────────────── */
.principle-section {
  padding: 6rem 0;
  background: var(--bg-main);
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: stretch;
}

.comp-card {
  padding: 2.5rem;
  border-radius: var(--radius-lg);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.comp-card.tradition {
  background: #FFF;
  border: 1px solid #F1F5F9;
  box-shadow: var(--shadow-sm);
  position: relative;
}

.comp-card.buntrock {
  background: linear-gradient(145deg, #FFFFFF 0%, #EFF6FF 100%);
  border: 2px solid var(--accent);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  position: relative;
}

.comp-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-light);
}

.comp-title {
  font-size: 1.5rem;
  font-weight: 800;
}

.comp-badge {
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
}

.tradition .comp-badge {
  background: #FEE2E2;
  color: #DC2626;
}

.buntrock .comp-badge {
  background: var(--emerald-light);
  color: #059669;
}

.comp-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.comp-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  font-size: 1.05rem;
}

.comp-item-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.9rem;
  margin-top: 2px;
}

.tradition .comp-item-icon {
  background: #FEE2E2;
  color: #DC2626;
}

.buntrock .comp-item-icon {
  background: var(--emerald-light);
  color: #059669;
}

/* ──────────────────────────────────────────────
   7. ABOUT TIMO BUNTROCK (MEISTER ALSMANAGER)
   ────────────────────────────────────────────── */
.about-section {
  padding: 6rem 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 4rem;
  align-items: center;
}

.about-img-box {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 4px solid var(--bg-main);
}

.about-img-box img {
  width: 100%;
  height: 520px;
  object-fit: cover;
}

.about-overlay-quote {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(180deg, transparent 0%, rgba(15, 23, 42, 0.85) 100%);
  padding: 2.5rem 1.5rem 1.5rem 1.5rem;
  color: #FFF;
  font-style: italic;
  font-size: 1.05rem;
}

.about-content h2 {
  font-size: 2.5rem;
  margin-top: 1rem;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.about-intro-p {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.about-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin: 2rem 0;
}

.about-feat-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  background: var(--bg-main);
  padding: 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition-normal);
  cursor: pointer;
  -webkit-user-select: none;
  user-select: none;
}

.about-feat-item:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
}

.about-feat-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--amber-light);
  color: var(--amber-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

/* ──────────────────────────────────────────────
   8. GEWERKE SHOWCASE (GEBÜNDELTE KOMPETENZ)
   ────────────────────────────────────────────── */
.gewerke-section {
  padding: 6rem 0;
  background: var(--bg-main);
}

.gewerke-tabs {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tab-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.tab-btn.active {
  background: var(--primary);
  color: var(--text-inverse);
  border-color: var(--primary);
  box-shadow: 0 4px 14px rgba(30, 58, 138, 0.25);
}

.gewerke-display {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.gewerke-content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
}

.gewerke-info {
  padding: 3.5rem;
}

.gewerke-badge {
  margin-bottom: 1rem;
}

.gewerke-title {
  font-size: 2.25rem;
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.gewerke-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.gewerke-checklist {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.gewerke-check-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  color: var(--text-main);
}

.gewerke-check-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
}

.gewerke-image-wrapper {
  position: relative;
  height: 100%;
  min-height: 480px;
}

.gewerke-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Gewerke Cards Grid View Alternative */
.gewerke-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  margin-top: 4rem;
}

.trade-card {
  background: var(--bg-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.trade-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}

.trade-card-img-wrap {
  height: 200px;
  position: relative;
  overflow: hidden;
}

.trade-card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.trade-card:hover .trade-card-img-wrap img {
  transform: scale(1.06);
}

.trade-card-body {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.trade-card-title {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
}

.trade-card-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

/* ──────────────────────────────────────────────
   9. INTERACTIVE SANIERUNGS-RECHNER (ESTIMATOR)
   ────────────────────────────────────────────── */
.estimator-section {
  padding: 6rem 0;
  background: linear-gradient(135deg, #1E3A8A 0%, #0F172A 100%);
  color: var(--text-inverse);
  position: relative;
  overflow: hidden;
}

.estimator-section .section-title {
  color: #FFF;
}

.estimator-section .section-desc {
  color: #94A3B8;
}

.estimator-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-lg);
  padding: 3rem;
  max-width: 900px;
  margin: 0 auto;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.3);
}

.estimator-step-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.estimator-step-title {
  font-size: 1.25rem;
  color: #FFF;
}

.estimator-step-num {
  color: var(--amber);
  font-weight: 700;
}

.estimator-options-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.option-box {
  background: rgba(255, 255, 255, 0.07);
  border: 2px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.option-box:hover, .option-box.selected {
  background: rgba(37, 99, 235, 0.25);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.option-box.selected {
  box-shadow: 0 0 20px rgba(37, 99, 235, 0.4);
}

.option-icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
  color: var(--amber);
}

.option-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
}

.slider-container {
  margin: 2.5rem 0;
}

.slider-label-row {
  display: flex;
  justify-content: space-between;
  font-weight: 600;
  margin-bottom: 1rem;
}

.sqm-slider {
  width: 100%;
  height: 10px;
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.2);
  outline: none;
  accent-color: var(--amber);
  cursor: pointer;
}

.estimator-result {
  background: rgba(255, 255, 255, 0.1);
  padding: 2rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 2rem;
}

.result-text {
  display: flex;
  flex-direction: column;
}

.result-label {
  font-size: 0.9rem;
  color: #CBD5E1;
}

.result-val {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--amber);
  font-family: var(--font-heading);
}

/* ──────────────────────────────────────────────
   10. WORKFLOW / PROCESS TIMELINE
   ────────────────────────────────────────────── */
.process-section {
  padding: 6rem 0;
  background: var(--bg-surface);
}

.timeline {
  position: relative;
  max-width: 900px;
  margin: 4rem auto 0 auto;
  padding: 0 1rem;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 4px;
  background: var(--border-light);
  transform: translateX(-50%);
  border-radius: var(--radius-full);
}

.timeline-progress-line {
  position: absolute;
  top: 0;
  left: 50%;
  width: 4px;
  background: linear-gradient(180deg, var(--accent), var(--amber));
  transform: translateX(-50%);
  height: 0%;
  transition: height 0.2s ease-out;
  border-radius: var(--radius-full);
}

.timeline-item {
  position: relative;
  margin-bottom: 4rem;
  width: 50%;
}

.timeline-item:nth-child(odd) {
  left: 0;
  padding-right: 3rem;
  text-align: right;
}

.timeline-item:nth-child(even) {
  left: 50%;
  padding-left: 3rem;
  text-align: left;
}

.timeline-node {
  position: absolute;
  top: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 4px solid var(--accent);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 800;
  color: var(--primary);
  z-index: 5;
  transition: all var(--transition-normal);
}

.timeline-item:nth-child(odd) .timeline-node {
  right: -22px;
}

.timeline-item:nth-child(even) .timeline-node {
  left: -22px;
}

.timeline-item.active .timeline-node {
  background: var(--amber);
  border-color: var(--amber-dark);
  color: #FFF;
  transform: scale(1.15);
}

.timeline-content {
  background: var(--bg-main);
  padding: 2rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.timeline-content:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}

.timeline-step-badge {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.timeline-title {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
}

.timeline-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ──────────────────────────────────────────────
   11. TESTIMONIALS & TRUST
   ────────────────────────────────────────────── */
.reviews-section {
  padding: 6rem 0;
  background: var(--bg-main);
  border-top: 1px solid var(--border-light);
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.review-card {
  background: var(--bg-surface);
  padding: 2.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-normal);
}

.review-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--accent);
}

.review-stars {
  color: var(--amber);
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

.review-text {
  font-size: 1.05rem;
  color: var(--text-main);
  line-height: 1.7;
  font-style: italic;
  margin-bottom: 1.5rem;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-family: var(--font-heading);
}

.author-info h4 {
  font-size: 1rem;
  font-weight: 700;
}

.author-info p {
  font-size: 0.85rem;
  color: var(--text-light);
}

/* ──────────────────────────────────────────────
   12. CONTACT SECTION & MODAL
   ────────────────────────────────────────────── */
.contact-section {
  padding: 6rem 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-light);
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 4rem;
  align-items: start;
}

.contact-info-box {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.contact-card {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  background: var(--bg-main);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  transition: all var(--transition-normal);
  cursor: pointer;
  -webkit-user-select: none;
  user-select: none;
}

.contact-card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}

.contact-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  flex-shrink: 0;
}

.contact-card-title {
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
}

.contact-card-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* Contact Form */
.contact-form {
  background: var(--bg-main);
  padding: 3rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-md);
}

.form-group-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.form-label {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-main);
}

.form-control {
  padding: 0.85rem 1.15rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
  background: var(--bg-surface);
  font-size: 1rem;
  transition: all var(--transition-fast);
  outline: none;
}

.form-control:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

textarea.form-control {
  min-height: 140px;
  resize: vertical;
}

/* Modal Popup */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: var(--bg-surface);
  padding: 3rem;
  border-radius: var(--radius-lg);
  max-width: 540px;
  width: 90%;
  text-align: center;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px);
  transition: transform var(--transition-normal);
}

.modal.open .modal-content {
  transform: translateY(0);
}

.modal-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--emerald-light);
  color: var(--emerald);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 1.5rem auto;
}

/* ──────────────────────────────────────────────
   13. FOOTER
   ────────────────────────────────────────────── */
.footer {
  background: var(--primary);
  color: #FFF;
  padding: 5rem 0 2rem 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 3rem;
  padding-bottom: 4rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.footer-brand p {
  color: #94A3B8;
  margin-top: 1rem;
  font-size: 0.95rem;
  line-height: 1.7;
}

.footer-col h4 {
  color: #FFF;
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.footer-links a {
  color: #CBD5E1;
  font-size: 0.95rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--amber);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  color: #94A3B8;
  font-size: 0.9rem;
}

/* ──────────────────────────────────────────────
   14. ANIMATIONS & REVEAL SYSTEM (SECTION SCROLL)
   ────────────────────────────────────────────── */
.reveal-up {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-blur-up {
  opacity: 0;
  transform: translateY(40px);
  filter: blur(10px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1), transform 0.9s cubic-bezier(0.16, 1, 0.3, 1), filter 0.9s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform, filter;
}

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.92);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal-up.visible,
.reveal-blur-up.visible,
.reveal-left.visible,
.reveal-right.visible,
.reveal-scale.visible {
  opacity: 1;
  transform: translateY(0) translateX(0) scale(1);
  filter: blur(0px);
}

/* Stagger Delays */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* ──────────────────────────────────────────────
   15. RESPONSIVE BREAKPOINTS
   ────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .hero-grid, .about-grid, .contact-grid, .gewerke-content-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

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

  .timeline::before, .timeline-progress-line {
    left: 20px;
  }

  .timeline-item {
    width: 100%;
    padding-left: 60px !important;
    padding-right: 0 !important;
    text-align: left !important;
  }

  .timeline-node {
    left: -2px !important;
    right: auto !important;
  }

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

@media (max-width: 768px) {
  .top-bar-info {
    display: none;
  }

  .nav-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height));
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-normal);
  }

  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .mobile-toggle {
    display: block;
  }

  .form-group-row {
    grid-template-columns: 1fr;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .badge-top-right, .badge-bottom-left {
    position: static;
    margin-top: 1rem;
  }
}