/* ==========================================================================
   Kristall Cleaning - Premium B2B Style Sheet
   Scandinavian Corporate Minimalism & Airy Hygiene
   ========================================================================== */

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

:root {
  --bg-clean: #F8FAFC;
  --surface-white: #FFFFFF;
  --primary-blue: #2563EB;
  --primary-dark: #1E40AF;
  --primary-light: #EFF6FF;
  --text-dark: #0F172A;
  --text-muted: #64748B;
  --text-light: #94A3B8;
  --border-color: #E2E8F0;
  --border-focus: #93C5FD;
  
  --success-green: #10B981;
  --success-bg: #ECFDF5;
  --success-border: #A7F3D0;
  
  --accent-gold: #E05A2B;
  --accent-gold-dark: #C0392B;
  --accent-gold-bg: #FFF5F0;
  
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 10px 10px -5px rgba(0, 0, 0, 0.02);
  --shadow-premium: 0 25px 50px -12px rgba(37, 99, 235, 0.08);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg-clean);
  color: var(--text-dark);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-clean);
}
::-webkit-scrollbar-thumb {
  background: #CBD5E1;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-light);
}

/* Typography elements */
h1, h2, h3, h4 {
  font-family: 'Outfit', 'Inter', sans-serif;
  font-weight: 700;
  line-height: 1.25;
}

/* Common Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Premium Buttons & Interactive Links */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 14px;
  font-weight: 600;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: var(--transition-bounce);
  font-family: 'Inter', sans-serif;
}

.btn-primary {
  background-color: var(--primary-blue);
  color: var(--surface-white);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
}
.btn-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
}
.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background-color: var(--surface-white);
  color: var(--primary-blue);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}
.btn-secondary:hover {
  background-color: var(--primary-light);
  border-color: var(--primary-blue);
  transform: translateY(-2px);
}

/* ==========================================================================
   Header Component
   ========================================================================== */
.header-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.8);
  z-index: 100;
  display: flex;
  align-items: center;
}

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

.logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  font-size: 32px;
  color: var(--primary-blue);
  animation: floatIcon 3s ease-in-out infinite;
}

.logo-text {
  font-family: 'Outfit', sans-serif;
  font-size: 20px;
  font-weight: 800;
  color: var(--text-dark);
  letter-spacing: -0.02em;
}
.logo-text span {
  color: var(--primary-blue);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 8px 0;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-blue);
  transition: var(--transition-smooth);
}
.nav-link:hover {
  color: var(--text-dark);
}
.nav-link:hover::after {
  width: 100%;
}

.header-contacts {
  display: flex;
  align-items: center;
  gap: 20px;
}

.studio-badge {
  font-size: 11px;
  font-weight: 700;
  color: var(--primary-blue);
  background: var(--primary-light);
  padding: 6px 12px;
  border-radius: 6px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border: 1px solid rgba(37, 99, 235, 0.15);
}

.phone-link {
  font-family: 'Outfit', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-dark);
  display: flex;
  align-items: center;
  gap: 6px;
}
.phone-link:hover {
  color: var(--primary-blue);
}
.phone-link span {
  font-size: 18px;
  color: var(--primary-blue);
}

/* Mobile Nav Toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 28px;
  color: var(--text-dark);
  cursor: pointer;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  position: relative;
  min-height: 100vh;
  padding-top: 130px;
  padding-bottom: 80px;
  background-color: #FFFFFF;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 45%;
  height: 100%;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.02) 0%, rgba(37, 99, 235, 0.06) 100%);
  z-index: 1;
  border-left: 1px solid rgba(226, 232, 240, 0.5);
}

.hero-container {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 680px;
}

.hero-gost-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: #F1F5F9;
  border: 1px solid var(--border-color);
  padding: 8px 16px;
  border-radius: 30px;
  margin-bottom: 24px;
}
.hero-gost-badge span:first-child {
  font-size: 16px;
  color: var(--primary-blue);
}
.hero-gost-badge span:last-child {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.hero-title {
  font-size: 44px;
  color: var(--text-dark);
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  font-weight: 800;
}
.hero-title span {
  color: var(--primary-blue);
  position: relative;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--text-muted);
  margin-bottom: 36px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  border-top: 1px solid var(--border-color);
  padding-top: 36px;
}

.stat-item {
  display: flex;
  flex-direction: column;
}
.stat-number {
  font-family: 'Outfit', sans-serif;
  font-size: 32px;
  font-weight: 800;
  color: var(--primary-blue);
  line-height: 1;
  margin-bottom: 6px;
}
.stat-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  line-height: 1.4;
}

/* Hero Right Side - Beautiful Visual mockup */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image-wrapper {
  position: relative;
  width: 100%;
  max-width: 440px;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 30px 60px rgba(15, 23, 42, 0.12);
  border: 4px solid var(--surface-white);
  transition: var(--transition-smooth);
}
.hero-image-wrapper:hover {
  transform: translateY(-5px);
  box-shadow: 0 40px 80px rgba(15, 23, 42, 0.18);
}

.hero-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

/* Glass Floating Cards */
.floating-glass-card {
  position: absolute;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 12px;
  padding: 16px;
  box-shadow: 0 15px 35px rgba(15, 23, 42, 0.08);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 10;
}

.card-top-left {
  top: 30px;
  left: -20px;
}

.card-bottom-right {
  bottom: 30px;
  right: -20px;
}

.floating-icon-box {
  width: 40px;
  height: 40px;
  background-color: var(--primary-light);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-blue);
  flex-shrink: 0;
}
.floating-icon-box span {
  font-size: 20px;
}

.floating-text-box h4 {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-dark);
}
.floating-text-box p {
  font-size: 11px;
  color: var(--text-muted);
}

/* ==========================================================================
   Interactive Calculator Section
   ========================================================================== */
.calc-section {
  padding: 100px 0;
  background-color: var(--bg-clean);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 60px auto;
}

.section-subtitle {
  font-size: 12px;
  font-weight: 700;
  color: var(--primary-blue);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-size: 36px;
  color: var(--text-dark);
  margin-bottom: 16px;
}

.section-desc {
  font-size: 16px;
  color: var(--text-muted);
}

/* Calculator Layout Grid */
.calc-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: start;
}

.calc-card {
  background-color: var(--surface-white);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 40px;
  box-shadow: var(--shadow-md);
  transition: var(--transition-smooth);
}
.calc-card:hover {
  box-shadow: var(--shadow-lg);
}

.calc-group {
  margin-bottom: 32px;
}
.calc-group:last-child {
  margin-bottom: 0;
}

.calc-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.calc-label {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-dark);
}

.calc-input-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
  background-color: var(--bg-clean);
  border: 1px solid var(--border-color);
  padding: 6px 12px;
  border-radius: 8px;
}
.calc-input-wrapper input {
  width: 70px;
  background: none;
  border: none;
  font-family: 'Outfit', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-dark);
  text-align: right;
  outline: none;
}
.calc-input-wrapper span {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
}

/* Customized Range Slider */
.range-container {
  position: relative;
  width: 100%;
}

.calc-range {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: var(--border-color);
  outline: none;
  margin: 12px 0;
  transition: var(--transition-smooth);
}

/* Range Slider Thumb */
.calc-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary-blue);
  cursor: pointer;
  border: 4px solid var(--surface-white);
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.4);
  transition: var(--transition-bounce);
}
.calc-range::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  background-color: var(--primary-dark);
}

.calc-range::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary-blue);
  cursor: pointer;
  border: 4px solid var(--surface-white);
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.4);
  transition: var(--transition-bounce);
}
.calc-range::-moz-range-thumb:hover {
  transform: scale(1.2);
  background-color: var(--primary-dark);
}

.range-limits {
  display: flex;
  justify-content: space-between;
  margin-top: 4px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-light);
}

/* Tabs */
.calc-tabs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  background-color: var(--bg-clean);
  padding: 6px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
}

.calc-tab {
  padding: 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  background: none;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--transition-smooth);
}
.calc-tab.active {
  background-color: var(--surface-white);
  color: var(--primary-blue);
  box-shadow: var(--shadow-sm);
}

/* Frequency Selectors as Grid Cards */
.frequency-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.freq-option {
  position: relative;
  cursor: pointer;
}

.freq-option input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.freq-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 16px 12px;
  background-color: var(--bg-clean);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  transition: var(--transition-smooth);
  text-align: center;
}

.freq-card span.material-symbols-outlined {
  font-size: 20px;
  color: var(--text-light);
  transition: var(--transition-smooth);
}

.freq-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.freq-desc {
  font-size: 10px;
  color: var(--text-light);
}

/* Active Radio selection state */
.freq-option input:checked + .freq-card {
  background-color: var(--primary-light);
  border-color: var(--primary-blue);
}
.freq-option input:checked + .freq-card span.material-symbols-outlined {
  color: var(--primary-blue);
}
.freq-option input:checked + .freq-card .freq-title {
  color: var(--primary-blue);
}
.freq-option input:checked + .freq-card .freq-desc {
  color: rgba(37, 99, 235, 0.7);
}

/* Right side output panel */
.calc-output-card {
  background-color: var(--surface-white);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 40px;
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 120px;
  transition: var(--transition-smooth);
}
.calc-output-card:hover {
  box-shadow: var(--shadow-lg);
}

.output-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 24px;
  margin-bottom: 24px;
}

.output-label {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.price-display {
  display: flex;
  align-items: baseline;
  color: var(--primary-blue);
}

.price-currency {
  font-family: 'Outfit', sans-serif;
  font-size: 24px;
  font-weight: 800;
  margin-left: 6px;
}

.price-period {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  margin-left: 8px;
}

#costValue {
  font-family: 'Outfit', sans-serif;
  font-size: 48px;
  font-weight: 800;
  line-height: 1;
}

.output-desc {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 12px;
}

/* Specs list included */
.output-specs {
  margin-bottom: 32px;
}

.specs-heading {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-dark);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.specs-heading span {
  font-size: 18px;
  color: var(--primary-blue);
}

.spec-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.spec-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--text-dark);
  line-height: 1.4;
  text-align: left;
}

.check-icon {
  font-size: 18px;
  color: var(--success-green);
  flex-shrink: 0;
  margin-top: 2px;
}

.calc-cta-btn {
  width: 100%;
  padding: 16px 20px;
  font-size: 15px;
}

/* ==========================================================================
   B2B Benefit Cards (Grid Layout)
   ========================================================================== */
.benefits-section {
  padding: 100px 0;
  background-color: var(--surface-white);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.benefit-card {
  background-color: var(--bg-clean);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 36px;
  transition: var(--transition-bounce);
  position: relative;
  overflow: hidden;
}
.benefit-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background-color: transparent;
  transition: var(--transition-smooth);
}
.benefit-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(37, 99, 235, 0.2);
}
.benefit-card:hover::before {
  background-color: var(--primary-blue);
}

.benefit-icon-box {
  width: 48px;
  height: 48px;
  background-color: var(--primary-light);
  color: var(--primary-blue);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}
.benefit-icon-box span {
  font-size: 24px;
}

.benefit-title {
  font-size: 20px;
  color: var(--text-dark);
  margin-bottom: 14px;
}

.benefit-desc {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 20px;
  line-height: 1.5;
}

.benefit-bullets {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.benefit-bullet {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-dark);
}
.benefit-bullet span {
  font-size: 16px;
  color: var(--primary-blue);
}

/* ==========================================================================
   Lead Capture Form Section
   ========================================================================== */
.lead-section {
  padding: 100px 0;
  background-color: var(--bg-clean);
}

.lead-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: center;
}

.lead-content {
  max-width: 480px;
}

.lead-title {
  font-size: 36px;
  color: var(--text-dark);
  margin-bottom: 20px;
}

.lead-desc {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.trust-badge-row {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.trust-badge-item {
  display: flex;
  align-items: center;
  gap: 12px;
}

.trust-icon-box {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--primary-light);
  color: var(--primary-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.trust-icon-box span {
  font-size: 18px;
}

.trust-text {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-dark);
}

/* Lead Form Card */
.lead-card {
  background-color: var(--surface-white);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 44px;
  box-shadow: var(--shadow-lg);
}

.form-group {
  margin-bottom: 20px;
}
.form-group:last-of-type {
  margin-bottom: 32px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.form-input {
  width: 100%;
  padding: 14px 16px;
  font-size: 14px;
  background-color: var(--surface-white);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  outline: none;
  font-family: 'Inter', sans-serif;
  color: var(--text-dark);
  transition: var(--transition-smooth);
}
.form-input:focus {
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* Prefilled Form Elements Styling */
.prefilled-group {
  background-color: var(--bg-clean);
  border: 1px dashed var(--border-color);
  border-radius: 10px;
  padding: 18px;
  margin-bottom: 24px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.prefilled-item {
  display: flex;
  flex-direction: column;
}
.prefilled-item.full-width {
  grid-column: span 2;
}

.prefilled-input {
  background-color: rgba(226, 232, 240, 0.4);
  border-color: var(--border-color);
  color: var(--text-muted);
  font-weight: 600;
  cursor: not-allowed;
  padding: 10px 12px;
  font-size: 13px;
}

/* Highlight Animation when Calculator Prefills */
@keyframes prefillPulse {
  0% { background-color: rgba(226, 232, 240, 0.4); border-color: var(--border-color); }
  50% { background-color: rgba(147, 197, 253, 0.2); border-color: var(--primary-blue); }
  100% { background-color: rgba(226, 232, 240, 0.4); border-color: var(--border-color); }
}

.highlight-prefill {
  animation: prefillPulse 1.5s ease-in-out;
}

.submit-btn {
  width: 100%;
  padding: 16px 20px;
  font-size: 15px;
}

.form-disclaimer {
  font-size: 11px;
  color: var(--text-light);
  text-align: center;
  margin-top: 14px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  background-color: var(--text-dark);
  color: var(--surface-white);
  padding: 80px 0 40px 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr 1fr;
  gap: 48px;
  margin-bottom: 60px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.footer-brand .logo-text {
  color: var(--surface-white);
}
.footer-desc {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.6;
}

.footer-nav-col h4,
.footer-contact-col h4 {
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 24px;
  color: var(--surface-white);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-link {
  font-size: 14px;
  color: var(--text-light);
}
.footer-link:hover {
  color: var(--primary-blue);
  transform: translateX(4px);
}

.footer-contacts-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14px;
  color: var(--text-light);
}
.footer-contact-item span.material-symbols-outlined {
  font-size: 20px;
  color: var(--primary-blue);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  color: var(--text-light);
}

.studio-credit {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
}
.studio-credit a {
  color: var(--primary-blue);
}
.studio-credit a:hover {
  text-decoration: underline;
}

/* ==========================================================================
   Modals & Notifications
   ========================================================================== */
.success-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 110;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-smooth);
}
.success-modal.visible {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background-color: var(--surface-white);
  border-radius: 16px;
  width: 100%;
  max-width: 480px;
  padding: 40px;
  text-align: center;
  box-shadow: var(--shadow-xl);
  transform: translateY(20px);
  transition: var(--transition-bounce);
}
.success-modal.visible .modal-content {
  transform: translateY(0);
}

.modal-icon-box {
  width: 64px;
  height: 64px;
  background-color: var(--success-bg);
  color: var(--success-green);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px auto;
  border: 1px solid var(--success-border);
}
.modal-icon-box span {
  font-size: 32px;
}

.modal-title {
  font-size: 24px;
  color: var(--text-dark);
  margin-bottom: 12px;
}
.modal-desc {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 32px;
  line-height: 1.5;
}

.modal-btn {
  width: 100%;
}

/* Offline Banner Toast */
.offline-banner {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background-color: var(--text-dark);
  color: var(--surface-white);
  padding: 14px 20px;
  border-radius: 10px;
  z-index: 100;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 12px;
  transform: translateY(100px);
  opacity: 0;
  transition: var(--transition-bounce);
  pointer-events: none;
}
.offline-banner.visible {
  transform: translateY(0);
  opacity: 1;
}
.offline-banner span:first-child {
  color: #FBBF24;
  font-size: 20px;
}
.offline-banner span:last-child {
  font-size: 13px;
  font-weight: 500;
}

/* Button Spinner */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2.5px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: var(--surface-white);
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes floatIcon {
  0% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
  100% { transform: translateY(0); }
}

/* ==========================================================================
   Sticky Promotional K-Kod Studio Banner
   ========================================================================== */
.sticky-banner {
  position: fixed;
  left: 0;
  bottom: 28%;
  z-index: 99;
  display: flex;
  align-items: center;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  transform: translateX(-315px);
}

.sticky-banner.expanded,
.sticky-banner:hover {
  transform: translateX(0);
}

.sticky-banner-card {
  width: 315px;
  background: rgba(255, 255, 255, 0.9); /* Frosted clean B2B glass */
  border-top-right-radius: 12px;
  border-bottom-right-radius: 12px;
  padding: 22px;
  border-top: 1px solid rgba(37, 99, 235, 0.15);
  border-right: 1px solid rgba(37, 99, 235, 0.15);
  border-bottom: 1px solid rgba(37, 99, 235, 0.15);
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.08), 0 4px 12px rgba(37, 99, 235, 0.05);
  display: flex;
  flex-direction: column;
  gap: 18px;
  color: var(--text-dark);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

.sticky-banner-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(37, 99, 235, 0.12);
}

.sticky-icon {
  color: var(--primary-blue);
  font-size: 24px;
  flex-shrink: 0;
  font-family: 'Material Symbols Outlined';
  font-weight: normal;
  font-style: normal;
  line-height: 1;
  display: inline-block;
  animation: floatIcon 2.5s ease-in-out infinite;
}

.sticky-title-wrapper {
  text-align: left;
  flex: 1;
  min-width: 0;
}

.sticky-title-wrapper h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-dark);
  margin: 0;
}

.sticky-title-wrapper p {
  font-size: 10px;
  color: var(--primary-blue);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin: 4px 0 0 0;
}

.sticky-badge {
  background: linear-gradient(135deg, var(--primary-blue), var(--primary-dark));
  color: var(--surface-white);
  font-size: 9px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 6px 10px;
  border-radius: 4px;
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.25);
  flex-shrink: 0;
}

.sticky-specs {
  text-align: left;
}

.specs-subtitle {
  font-size: 10px;
  color: var(--text-muted);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

.specs-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-dark);
  margin: 0;
}

.specs-desc {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
  line-height: 1.5;
}

.sticky-pricing {
  background: var(--primary-light); /* Soft blue card background */
  border-radius: 8px;
  padding: 16px;
  border: 1px solid rgba(37, 99, 235, 0.1);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pricing-subtitle {
  font-size: 9px;
  color: var(--text-muted);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0;
}

.pricing-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
}

.pricing-row > span:first-child {
  color: var(--text-muted);
  font-weight: 500;
}

.price-crossed {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-light);
  text-decoration: line-through;
}

.price-added {
  font-size: 11px;
  font-weight: 700;
  color: var(--primary-dark);
}

.promo-divider {
  display: flex;
  align-items: center;
  gap: 8px;
}

.promo-divider .line {
  flex: 1;
  height: 1px;
  background: rgba(37, 99, 235, 0.15);
}

.promo-divider span {
  font-size: 9px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--primary-blue);
}

.promo-price-block {
  text-align: center;
}

.price-large {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
}

.price-large span:first-child {
  font-family: 'Outfit', sans-serif;
  font-size: 38px;
  font-weight: 800;
  color: var(--primary-blue);
  line-height: 1;
}

.price-large .currency {
  font-family: 'Outfit', sans-serif;
  font-size: 24px;
  font-weight: 800;
  color: var(--primary-blue);
}

.promo-price-block .price-desc {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 6px;
  font-weight: 500;
}

.urgency-block {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--success-bg); /* Clean green highlight */
  border-radius: 6px;
  padding: 8px 12px;
  border: 1px solid var(--success-border);
}

.sticky-icon-small {
  color: var(--success-green);
  font-size: 16px;
  font-family: 'Material Symbols Outlined';
  font-weight: normal;
  font-style: normal;
  line-height: 1;
  display: inline-block;
}

.urgency-block span:last-child {
  font-size: 10px;
  font-weight: 700;
  color: var(--success-green);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.sticky-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid rgba(37, 99, 235, 0.12);
  padding-top: 12px;
}

.sticky-footer span:first-child {
  font-size: 10px;
  color: var(--text-light);
  font-weight: 500;
}

.sticky-link {
  font-size: 11px;
  font-weight: 700;
  color: var(--primary-blue);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: var(--transition-smooth);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
}

.sticky-link:hover {
  color: var(--primary-dark);
  transform: translateX(3px);
}

@keyframes sticky-tab-pulse {
  0%, 100% { opacity: 1; box-shadow: 4px 0 20px rgba(37, 99, 235, 0.20); }
  50% { opacity: 0.82; box-shadow: 4px 0 30px rgba(37, 99, 235, 0.45); }
}

.sticky-tab {
  width: 46px;
  height: 160px;
  background: rgba(37, 99, 235, 0.62);
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  border: 1px solid rgba(37, 99, 235, 0.78);
  border-top-right-radius: 12px;
  border-bottom-right-radius: 12px;
  box-shadow: 4px 0 20px rgba(37, 99, 235, 0.20);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 8px;
  transition: var(--transition-smooth);
  animation: sticky-tab-pulse 4s ease-in-out infinite;
}

.sticky-banner:hover .sticky-tab {
  background: rgba(37, 99, 235, 0.85);
  filter: brightness(1.05);
  animation: none;
}

@media (max-width: 768px) {
  .sticky-banner {
    bottom: 0px;
    left: 50%;
    right: auto;
    flex-direction: column;
    transform: translateX(-50%);
    width: auto;
    align-items: center;
  }
  .sticky-banner:hover {
    transform: translateX(-50%);
  }
  .sticky-banner-card {
    width: 90vw;
    max-width: 360px;
    border-radius: 16px;
    margin-bottom: 8px;
    border: 1px solid rgba(37, 99, 235, 0.25);
    opacity: 0;
    pointer-events: none;
    transform: translateY(12px);
    max-height: 0;
    overflow: hidden;
    transition: opacity 0.35s ease, transform 0.35s ease, max-height 0.4s ease;
  }
  .sticky-banner:hover .sticky-banner-card {
    /* Disable hover expansion on mobile touch screens */
    opacity: 0;
    pointer-events: none;
    transform: translateY(12px);
    max-height: 0;
  }
  .sticky-banner.expanded .sticky-banner-card {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
    max-height: 600px;
  }
  .sticky-tab {
    width: auto;
    height: 44px;
    border-radius: 24px;
    border-top-right-radius: 24px;
    border-bottom-right-radius: 24px;
    flex-direction: row;
    padding: 0 20px;
    gap: 10px;
    border: 1px solid rgba(37, 99, 235, 0.78);
    box-shadow: 0 4px 24px rgba(37, 99, 235, 0.28);
    animation: sticky-tab-pulse 4s ease-in-out infinite;
  }
  .vertical-text-large,
  .vertical-text-small {
    writing-mode: horizontal-tb !important;
    transform: none !important;
    letter-spacing: 0.15em !important;
  }
}

.sticky-icon-white {
  color: var(--surface-white);
  font-size: 20px;
  font-family: 'Material Symbols Outlined';
  font-weight: normal;
  font-style: normal;
  line-height: 1;
  display: inline-block;
}

.vertical-text-large {
  font-size: 9px;
  color: var(--surface-white);
  text-transform: uppercase;
  font-weight: 800;
  letter-spacing: 0.2em;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  user-select: none;
}

.vertical-text-small {
  font-size: 10px;
  color: var(--surface-white);
  font-weight: 700;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  user-select: none;
}

/* ==========================================================================
   Interactive Objects Gallery Section
   ========================================================================== */
.gallery-section {
  padding: 100px 0;
  background-color: var(--surface-white);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 20px;
}

.gallery-card {
  background-color: var(--surface-white);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border-color);
  transition: var(--transition-bounce);
  position: relative;
}

.gallery-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--border-focus);
}

.gallery-img-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background-color: var(--bg-clean);
}

.gallery-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-bounce);
  display: block;
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.9) 0%, rgba(15, 23, 42, 0.4) 60%, rgba(15, 23, 42, 0) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  opacity: 0;
  transition: var(--transition-smooth);
  z-index: 2;
}

.gallery-zoom-icon {
  position: absolute;
  top: 20px;
  right: 20px;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--surface-white);
  font-size: 24px;
  transition: var(--transition-bounce);
  transform: translateY(-10px);
}

.gallery-card-info {
  color: var(--surface-white);
  transform: translateY(20px);
  transition: var(--transition-bounce);
}

.gallery-card-info h3 {
  font-family: 'Outfit', sans-serif;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--surface-white);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.gallery-card-info p {
  font-size: 12px;
  color: #E2E8F0;
  line-height: 1.4;
  margin: 0;
}

/* Hover States for Interactive Cards */
.gallery-card:hover .gallery-overlay {
  opacity: 1;
}

.gallery-card:hover .gallery-img {
  transform: scale(1.08);
}

.gallery-card:hover .gallery-zoom-icon {
  transform: translateY(0);
}

.gallery-card:hover .gallery-card-info {
  transform: translateY(0);
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-section::before {
    display: none;
  }
  .hero-visual {
    order: -1;
  }
  .calc-grid {
    grid-template-columns: 1fr;
  }
  .calc-output-card {
    position: static;
  }
  .benefits-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  .lead-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .header-bar {
    height: 70px;
  }
  .nav-menu {
    display: none; /* In a production app, we would add mobile drawer */
  }
  .gallery-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .header-contacts {
    gap: 12px;
  }
  .phone-link {
    font-size: 14px;
  }
  .phone-link span {
    font-size: 16px;
  }
  .hero-title {
    font-size: 32px;
  }
  .hero-subtitle {
    font-size: 16px;
  }
  .hero-stats {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .calc-card, .calc-output-card {
    padding: 24px;
  }
  .frequency-grid {
    grid-template-columns: 1fr;
  }
  .lead-card {
    padding: 24px;
  }
  .prefilled-group {
    grid-template-columns: 1fr;
  }
  .prefilled-item.full-width {
    grid-column: span 1;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .sticky-banner {
    bottom: 0px;
  }
}