/* ============================================================
   BUNTROCK INDUSTRY — CORPORATE DESIGN SYSTEM
   Modeled after KAEFER Deutschland (kaefer-deutschland.com)
   Clean White Corporate, Industrial Metal Orange Accents,
   Authoritative Engineering, 100% Responsive & High-Performance
   ============================================================ */

:root {
  /* Corporate Clean White Palette */
  --bg-white: #FFFFFF;
  --bg-light: #F4F6F9;
  --bg-subtle: #E9ECEF;
  --bg-card: #FFFFFF;

  /* Signature Industrial Metal Orange (Buntrock CI) */
  --brand-orange: #FF5500;
  --brand-orange-hover: #E64A00;
  --brand-orange-light: #FF7026;
  --brand-orange-subtle: rgba(255, 85, 0, 0.08);
  --brand-orange-glow: rgba(255, 85, 0, 0.2);

  /* Corporate Industrial Navy / Dark Slate (High Contrast) */
  --text-primary: #0F172A;
  --text-secondary: #334155;
  --text-muted: #64748B;
  --text-light: #94A3B8;
  --text-inverted: #FFFFFF;

  /* Borders & Dividers */
  --border-light: #E2E8F0;
  --border-subtle: #F1F5F9;
  --border-orange: rgba(255, 85, 0, 0.35);

  /* Typography */
  --font-heading: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing */
  --container-max: 1280px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 14px;

  /* Elevation */
  --shadow-subtle: 0 2px 10px rgba(15, 23, 42, 0.04);
  --shadow-card: 0 4px 20px rgba(15, 23, 42, 0.06);
  --shadow-hover: 0 12px 36px rgba(15, 23, 42, 0.1);
  --shadow-orange: 0 6px 20px rgba(255, 85, 0, 0.25);

  /* Transitions */
  --transition-fast: 0.18s ease;
  --transition-normal: 0.28s ease;
}

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

html {
  scroll-behavior: smooth;
  color-scheme: light;
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--bg-white);
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  overflow-x: hidden;
}

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

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* ============================================================
   KAEFER-STYLE HEADER & TOP UTILITY BAR (ULTRA-CLEAN)
   ============================================================ */
.corporate-header {
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 1000;
  background: #FFFFFF;
  border-bottom: 1px solid var(--border-light);
  box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
  transition: all var(--transition-normal);
}

/* Top Utility Bar */
.top-utility-bar {
  background: #F8FAFC;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.78rem;
  color: #64748B;
  padding: 6px 0;
}

.utility-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  max-width: 1480px;
  margin: 0 auto;
  padding: 0 32px;
}

.utility-left {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  white-space: nowrap;
}

.utility-dot {
  width: 7px;
  height: 7px;
  background: var(--brand-orange);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--brand-orange);
  flex-shrink: 0;
}

.utility-right {
  display: flex;
  align-items: center;
  gap: 18px;
  white-space: nowrap;
}

.utility-right a {
  color: #475569;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.utility-right a:hover {
  color: var(--brand-orange);
}

/* Main Navigation Bar */
.header-container {
  width: 100%;
  max-width: 1480px;
  margin: 0 auto;
  padding: 0 32px;
}

.main-nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 24px;
}

.corporate-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  text-decoration: none;
}

.brand-emblem-svg {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  filter: drop-shadow(0 2px 6px rgba(255, 85, 0, 0.25));
}

.brand-text-block {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.brand-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 900;
  color: #0F172A;
  letter-spacing: -0.02em;
  line-height: 1.1;
  white-space: nowrap;
}

.brand-title .brand-accent {
  color: var(--brand-orange);
  font-weight: 800;
  margin-left: 4px;
}

.brand-subtitle {
  font-size: 0.65rem;
  font-weight: 700;
  color: #64748B;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 2px;
  white-space: nowrap;
}

.corporate-nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 30px;
  margin: 0;
  padding: 0;
}

.corporate-nav-links li {
  display: flex;
  align-items: center;
}

.corporate-nav-links a {
  font-size: 0.92rem;
  font-weight: 600;
  color: #334155;
  position: relative;
  padding: 6px 0;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.corporate-nav-links a:hover,
.corporate-nav-links a.active {
  color: var(--brand-orange);
}

.corporate-nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2.5px;
  background: var(--brand-orange);
  border-radius: 2px;
  transition: width var(--transition-fast);
}

.corporate-nav-links a:hover::after,
.corporate-nav-links a.active::after {
  width: 100%;
}

.btn-header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--brand-orange);
  color: #FFFFFF;
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 700;
  padding: 10px 20px;
  border-radius: 6px;
  box-shadow: 0 2px 10px rgba(255, 85, 0, 0.22);
  transition: all var(--transition-fast);
  white-space: nowrap;
  flex-shrink: 0;
}

.btn-header-cta:hover {
  background: var(--brand-orange-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(255, 85, 0, 0.35);
  color: #FFFFFF;
}

.mobile-menu-toggle {
  display: none;
  padding: 8px;
  color: var(--text-primary);
  border-radius: 4px;
}

.mobile-menu-toggle:hover {
  background: var(--bg-light);
}

/* ============================================================
   KAEFER-STYLE HERO STAGE
   ============================================================ */
.corporate-hero {
  position: relative;
  background: #0F172A;
  color: #FFFFFF;
  padding: 100px 0 140px;
  overflow: hidden;
}

.hero-background-wrapper {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.42;
}

.hero-overlay-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(15, 23, 42, 0.92) 0%, rgba(15, 23, 42, 0.65) 60%, rgba(15, 23, 42, 0.4) 100%);
}

.hero-content-col {
  position: relative;
  z-index: 2;
  max-width: 820px;
}

.hero-tag-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 85, 0, 0.15);
  border: 1px solid rgba(255, 85, 0, 0.4);
  color: #FFA575;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  margin-bottom: 24px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero-heading {
  font-family: var(--font-heading);
  font-size: clamp(2.6rem, 5vw, 4.2rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  color: #FFFFFF;
}

.hero-heading span {
  color: var(--brand-orange);
}

.hero-subheadline {
  font-size: clamp(1.1rem, 1.4vw, 1.25rem);
  color: #CBD5E1;
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 720px;
}

.hero-action-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary-corporate {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--brand-orange);
  color: #FFFFFF;
  font-family: var(--font-heading);
  font-size: 0.98rem;
  font-weight: 700;
  padding: 14px 30px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-orange);
  transition: all var(--transition-fast);
}

.btn-primary-corporate:hover {
  background: var(--brand-orange-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(255, 85, 0, 0.4);
  color: #FFFFFF;
}

.btn-secondary-corporate {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, 0.1);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(8px);
  font-family: var(--font-heading);
  font-size: 0.98rem;
  font-weight: 700;
  padding: 14px 30px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.btn-secondary-corporate:hover {
  background: #FFFFFF;
  color: var(--text-primary);
  transform: translateY(-2px);
}

/* ============================================================
   KAEFER-STYLE FLOATING FACT STRIP
   ============================================================ */
.floating-fact-strip {
  position: relative;
  z-index: 10;
  margin-top: -60px;
}

.fact-strip-card {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 32px 40px;
  box-shadow: var(--shadow-card);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.fact-col {
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border-light);
  padding-right: 24px;
}

.fact-col:last-child {
  border-right: none;
  padding-right: 0;
}

.fact-number {
  font-family: var(--font-heading);
  font-size: 2.3rem;
  font-weight: 900;
  color: var(--text-primary);
  line-height: 1.1;
}

.fact-number span {
  color: var(--brand-orange);
}

.fact-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 6px;
}

.fact-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ============================================================
   SECTION TITLES & COMMONS
   ============================================================ */
.section-wrap {
  padding: 100px 0;
  position: relative;
}

.section-wrap.bg-light {
  background: var(--bg-light);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--brand-orange);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3.4vw, 2.8rem);
  font-weight: 900;
  color: var(--text-primary);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-subtext {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 720px;
  line-height: 1.7;
}

/* ============================================================
   KAEFER CORE SERVICES GRID (MULTIDISZIPLINÄR)
   ============================================================ */
.services-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 56px;
}

.service-item-card {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-subtle);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.service-item-card:hover {
  transform: translateY(-5px);
  border-color: var(--brand-orange);
  box-shadow: var(--shadow-hover);
}

.service-card-media {
  position: relative;
  height: 220px;
  overflow: hidden;
}

.service-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.service-item-card:hover .service-card-img {
  transform: scale(1.05);
}

.service-category-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(6px);
  color: #FFFFFF;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
}

.service-card-body {
  padding: 28px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  justify-content: space-between;
}

.service-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
  line-height: 1.25;
}

.service-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 24px;
}

.service-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--brand-orange);
  transition: transform var(--transition-fast);
}

.service-item-card:hover .service-link-btn {
  color: var(--brand-orange-hover);
  transform: translateX(4px);
}

/* ============================================================
   KAEFER-STYLE BRANCHENLÖSUNGEN (INDUSTRIES)
   ============================================================ */
.industries-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.industry-card {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  box-shadow: var(--shadow-subtle);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.industry-card:hover {
  transform: translateY(-4px);
  border-color: var(--brand-orange);
  box-shadow: var(--shadow-card);
}

.industry-icon-wrap {
  width: 44px;
  height: 44px;
  background: var(--brand-orange-subtle);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--brand-orange);
  margin-bottom: 18px;
}

.industry-name {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.industry-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================================
   ENERGY & SUSTAINABILITY (DIN EN ISO 12241 CALCULATOR)
   ============================================================ */
.calculator-box {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 44px;
  box-shadow: var(--shadow-card);
  margin-top: 48px;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
}

.calc-control-group {
  margin-bottom: 28px;
}

.calc-control-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.calc-control-label {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.calc-bubble {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--brand-orange);
  background: var(--brand-orange-subtle);
  padding: 3px 10px;
  border-radius: var(--radius-sm);
}

.corporate-range {
  width: 100%;
  height: 8px;
  background: var(--border-light);
  border-radius: 4px;
  outline: none;
  -webkit-appearance: none;
  cursor: pointer;
}

.corporate-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  background: var(--brand-orange);
  border: 3px solid #FFFFFF;
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
  cursor: pointer;
}

.calc-result-panel {
  background: var(--bg-light);
  border: 1.5px solid var(--brand-orange);
  border-radius: var(--radius-md);
  padding: 36px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.result-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--brand-orange);
  text-transform: uppercase;
}

.result-main-num {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--text-primary);
  margin: 8px 0;
  line-height: 1.1;
}

.result-metrics-grid {
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  padding: 18px 0;
  margin: 20px 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.result-metric-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.92rem;
}

/* ============================================================
   KAEFER SAFETY & ZERO HARM SECTION
   ============================================================ */
.safety-feature-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 48px;
}

.safety-card {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-subtle);
}

.safety-card-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--brand-orange);
  margin-bottom: 12px;
}

.safety-card-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.safety-card-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ============================================================
   CONTACT & INQUIRY SECTION (KAEFER STYLE FORM)
   ============================================================ */
.inquiry-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-top: 56px;
}

.inquiry-info-block {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-direct-card {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  box-shadow: var(--shadow-subtle);
}

.contact-card-icon {
  width: 48px;
  height: 48px;
  background: var(--brand-orange-subtle);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--brand-orange);
}

.contact-card-title {
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  text-transform: uppercase;
}

.contact-card-value {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-top: 2px;
}

.corporate-form-card {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 40px;
  box-shadow: var(--shadow-card);
}

.form-row-2col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.form-label {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-primary);
}

.form-input {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--brand-orange);
  box-shadow: 0 0 10px rgba(255, 85, 0, 0.15);
}

/* ============================================================
   KAEFER-STYLE CORPORATE FOOTER
   ============================================================ */
.corporate-footer {
  background: #0F172A;
  color: #94A3B8;
  padding: 80px 0 32px;
  font-size: 0.92rem;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

.footer-brand-desc {
  margin-top: 16px;
  line-height: 1.65;
  color: #CBD5E1;
  max-width: 360px;
}

.footer-col-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-link-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link-list a {
  color: #94A3B8;
  transition: color var(--transition-fast);
}

.footer-link-list a:hover {
  color: var(--brand-orange);
}

.footer-bottom-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.85rem;
  flex-wrap: wrap;
  gap: 16px;
}

/* ============================================================
   REFERENCE PROJECTS (KAEFER CASE STUDIES)
   ============================================================ */
.reference-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.reference-card {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-subtle);
  transition: all var(--transition-normal);
}

.reference-card:hover {
  transform: translateY(-4px);
  border-color: var(--brand-orange);
  box-shadow: var(--shadow-card);
}

.reference-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--brand-orange);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.reference-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 8px;
}

.reference-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 16px;
}

.reference-meta {
  border-top: 1px solid var(--border-light);
  padding-top: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* ============================================================
   4-PHASE WORKFLOW STEPS
   ============================================================ */
.workflow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
  position: relative;
}

.workflow-step {
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  position: relative;
  box-shadow: var(--shadow-subtle);
}

.workflow-num {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--brand-orange);
  line-height: 1;
  margin-bottom: 16px;
}

.workflow-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.workflow-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================================
   FILE DROPZONE & FORM STYLES
   ============================================================ */
.file-dropzone {
  border: 2px dashed var(--border-light);
  border-radius: var(--radius-sm);
  padding: 20px;
  text-align: center;
  background: var(--bg-light);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.file-dropzone:hover {
  border-color: var(--brand-orange);
  background: var(--brand-orange-subtle);
}

.file-dropzone input[type="file"] {
  display: none;
}

.file-dropzone-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.file-dropzone-text span {
  color: var(--brand-orange);
  font-weight: 700;
}

.form-checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1.5;
}

.form-checkbox-label input[type="checkbox"] {
  margin-top: 3px;
  accent-color: var(--brand-orange);
}

.form-status-msg {
  display: none;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 600;
  margin-top: 16px;
}

.form-status-msg.success {
  display: block;
  background: #DCFCE7;
  color: #166534;
  border: 1px solid #86EFAC;
}

.form-status-msg.error {
  display: block;
  background: #FEE2E2;
  color: #991B1B;
  border: 1px solid #FCA5A5;
}

/* ============================================================
   MOBILE DRAWER NAVIGATION
   ============================================================ */
.mobile-drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1050;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

.mobile-drawer-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 320px;
  max-width: 85vw;
  background: #FFFFFF;
  z-index: 1100;
  padding: 24px;
  box-shadow: -4px 0 24px rgba(15, 23, 42, 0.2);
  transform: translateX(100%);
  transition: transform var(--transition-normal);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.mobile-drawer.open {
  transform: translateX(0);
}

.drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-light);
}

.drawer-close-btn {
  font-size: 1.5rem;
  color: var(--text-primary);
  padding: 4px;
}

.drawer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 24px;
}

.drawer-links a {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  display: block;
  padding: 8px 0;
}

.drawer-links a:hover {
  color: var(--brand-orange);
}

/* ============================================================
   DSGVO COOKIE BANNER & CONSENT MANAGER (VENTROR-HOLDING STYLE)
   Adapted to Buntrock Isolierungen (Clean White & Industrial Orange)
   ============================================================ */
.cookie-banner {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9995;
  width: calc(100% - 48px);
  max-width: 480px;
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: 18px;
  padding: 24px;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.15), 0 0 30px rgba(255, 85, 0, 0.08);
  transform: translateY(120%) scale(0.96);
  opacity: 0;
  visibility: hidden;
  transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.35s ease, visibility 0.35s;
  overflow: hidden;
}

.cookie-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--brand-orange);
}

.cookie-banner.active {
  transform: translateY(0) scale(1);
  opacity: 1;
  visibility: visible;
}

.cookie-banner-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.cookie-icon-wrapper {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--brand-orange-subtle);
  border: 1px solid var(--border-orange);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-orange);
  flex-shrink: 0;
}

.cookie-icon-wrapper svg {
  width: 20px;
  height: 20px;
}

.cookie-banner-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.cookie-banner-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 20px;
}

.cookie-banner-text a {
  color: var(--brand-orange);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 600;
}

.cookie-banner-text a:hover {
  color: var(--brand-orange-hover);
}

.cookie-banner-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.cookie-btn-group-primary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.cookie-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 18px;
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
}

.cookie-btn-accept {
  background: var(--brand-orange);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(255, 85, 0, 0.25);
}

.cookie-btn-accept:hover {
  background: var(--brand-orange-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(255, 85, 0, 0.35);
  color: #FFFFFF;
}

.cookie-btn-deny {
  background: var(--bg-light);
  border: 1px solid var(--border-light);
  color: var(--text-primary);
}

.cookie-btn-deny:hover {
  background: var(--bg-subtle);
  border-color: #CBD5E1;
  color: var(--text-primary);
}

.cookie-btn-settings {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 8px 12px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: color 0.2s;
}

.cookie-btn-settings:hover {
  color: var(--brand-orange);
}

/* Cookie Preferences Modal */
.cookie-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s;
}

.cookie-modal.active {
  opacity: 1;
  visibility: visible;
}

.cookie-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(8px);
}

.cookie-modal-card {
  position: relative;
  width: 100%;
  max-width: 580px;
  max-height: 90vh;
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: 20px;
  box-shadow: 0 30px 80px rgba(15, 23, 42, 0.25);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transform: scale(0.94) translateY(15px);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.cookie-modal.active .cookie-modal-card {
  transform: scale(1) translateY(0);
}

.cookie-modal-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--brand-orange);
}

.cookie-modal-header {
  padding: 22px 28px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-light);
}

.cookie-modal-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.cookie-modal-close {
  background: var(--bg-light);
  border: 1px solid var(--border-light);
  color: var(--text-muted);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 1.2rem;
  line-height: 1;
}

.cookie-modal-close:hover {
  background: var(--bg-subtle);
  color: var(--text-primary);
}

.cookie-modal-body {
  padding: 20px 28px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.cookie-modal-intro {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* Category item */
.cookie-category {
  background: var(--bg-light);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 16px 18px;
  transition: border-color 0.2s;
}

.cookie-category:hover {
  border-color: #CBD5E1;
}

.cookie-category-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 6px;
}

.cookie-category-title {
  font-family: var(--font-heading);
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.cookie-badge-required {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 2px 7px;
  border-radius: 12px;
  background: rgba(255, 85, 0, 0.12);
  color: var(--brand-orange);
  border: 1px solid var(--border-orange);
}

.cookie-category-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Switch Toggle UI */
.cookie-toggle {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
}

.cookie-toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.cookie-slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: #CBD5E1;
  transition: 0.25s ease;
  border-radius: 30px;
}

.cookie-slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: #FFFFFF;
  transition: 0.25s ease;
  border-radius: 50%;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

.cookie-toggle input:checked + .cookie-slider {
  background: var(--brand-orange);
}

.cookie-toggle input:checked + .cookie-slider:before {
  transform: translateX(20px);
}

.cookie-toggle input:disabled + .cookie-slider {
  opacity: 0.6;
  cursor: not-allowed;
}

.cookie-modal-footer {
  padding: 16px 28px 20px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  border-top: 1px solid var(--border-light);
  background: var(--bg-light);
}

/* Reopen Trigger Button (Fixed Bottom Left) */
.cookie-trigger-btn {
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: 9990;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #FFFFFF;
  border: 1px solid var(--border-light);
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-orange);
  cursor: pointer;
  transition: all 0.2s ease;
}

.cookie-trigger-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 20px rgba(15, 23, 42, 0.18);
  border-color: var(--brand-orange);
}

.cookie-trigger-btn svg {
  width: 20px;
  height: 20px;
}

@media (max-width: 640px) {
  .cookie-banner {
    bottom: 16px;
    right: 16px;
    left: 16px;
    width: auto;
    padding: 20px;
  }
  .cookie-trigger-btn {
    bottom: 16px;
    left: 16px;
    width: 40px;
    height: 40px;
  }
  .cookie-btn-group-primary {
    grid-template-columns: 1fr;
  }
  .cookie-modal-footer {
    flex-direction: column-reverse;
  }
  .cookie-modal-footer .cookie-btn {
    width: 100%;
  }
}

/* ============================================================
   RESPONSIVE MEDIA QUERIES
   ============================================================ */
@media (max-width: 1180px) {
  .corporate-nav-links {
    display: none;
  }
  .mobile-menu-toggle {
    display: block;
  }
}

@media (max-width: 1024px) {
  .fact-strip-card {
    grid-template-columns: repeat(2, 1fr);
  }
  .services-card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .industries-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .reference-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .workflow-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .safety-feature-row {
    grid-template-columns: 1fr;
  }
  .calculator-box, .inquiry-grid {
    grid-template-columns: 1fr;
  }
  .footer-top-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .top-utility-bar {
    display: none;
  }
  .fact-strip-card {
    grid-template-columns: 1fr;
  }
  .fact-col {
    border-right: none;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 16px;
    padding-right: 0;
  }
  .fact-col:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }
  .services-card-grid {
    grid-template-columns: 1fr;
  }
  .industries-grid {
    grid-template-columns: 1fr;
  }
  .reference-grid {
    grid-template-columns: 1fr;
  }
  .workflow-grid {
    grid-template-columns: 1fr;
  }
  .form-row-2col {
    grid-template-columns: 1fr;
  }
  .footer-top-grid {
    grid-template-columns: 1fr;
  }
}