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

:root {
  --bg-primary: #08090b;
  --bg-secondary: #111318;
  --bg-card: rgba(255, 255, 255, 0.02);
  --border-color: rgba(255, 255, 255, 0.07);
  --border-glow: rgba(0, 242, 254, 0.15);
  
  --accent-cyan: #00f2fe;
  --accent-purple: #7f00ff;
  --accent-blue: #4facfe;
  --accent-pink: #f857a6;
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --font-sans: 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'Space Grotesk', sans-serif;
  
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  
  --glass-blur: blur(16px);
  --shadow-neon: 0 0 20px rgba(0, 242, 254, 0.15);
  --shadow-neon-hover: 0 0 30px rgba(0, 242, 254, 0.35);
  
  --max-width: 1280px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

body {
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  position: relative;
}

/* Ambient glow backgrounds */
body::before, body::after {
  content: '';
  position: absolute;
  width: 50vw;
  height: 50vw;
  border-radius: 50%;
  z-index: -10;
  filter: blur(120px);
  opacity: 0.15;
  pointer-events: none;
}

body::before {
  top: 10%;
  left: -10%;
  background: radial-gradient(circle, var(--accent-cyan) 0%, transparent 70%);
}

body::after {
  top: 60%;
  right: -10%;
  background: radial-gradient(circle, var(--accent-purple) 0%, transparent 70%);
}

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

ul {
  list-style: none;
}

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

button, input, select, textarea {
  font-family: inherit;
  background: transparent;
  border: none;
  color: inherit;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

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

/* Section Header */
.section-header {
  text-align: center;
  margin-bottom: 5rem;
  position: relative;
}

.section-tag {
  font-family: var(--font-mono);
  text-transform: uppercase;
  color: var(--accent-cyan);
  font-size: 0.875rem;
  letter-spacing: 0.2em;
  margin-bottom: 1rem;
  display: inline-block;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.section-subtitle {
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  font-size: 1.1rem;
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: rgba(8, 9, 11, 0.7);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition-normal);
}

.header.scrolled {
  background: rgba(8, 9, 11, 0.9);
  padding: 0.5rem 0;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo span {
  color: var(--accent-cyan);
}

.nav-links {
  display: flex;
  gap: 2.5rem;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition-fast);
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue));
  transition: var(--transition-normal);
}

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

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.nav-cta {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  color: #000;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  font-size: 0.9rem;
  transition: var(--transition-normal);
  box-shadow: var(--shadow-neon);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-neon-hover);
  filter: brightness(1.1);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  z-index: 101;
}

.menu-toggle span {
  display: block;
  width: 28px;
  height: 2px;
  background-color: var(--text-primary);
  transition: var(--transition-normal);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 100px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: center;
}

.hero-content {
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 50px;
  background: rgba(0, 242, 254, 0.05);
  border: 1px solid rgba(0, 242, 254, 0.2);
  color: var(--accent-cyan);
  font-size: 0.85rem;
  font-family: var(--font-mono);
  margin-bottom: 2rem;
  animation: pulse-glow 2s infinite alternate;
}

.hero-badge span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-cyan);
  display: inline-block;
  box-shadow: 0 0 8px var(--accent-cyan);
}

.hero-title {
  font-size: 4rem;
  line-height: 1.05;
  margin-bottom: 2rem;
}

.hero-desc {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 3rem;
  max-width: 580px;
}

.hero-btns {
  display: flex;
  gap: 1.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  transition: var(--transition-normal);
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  color: #000;
  box-shadow: var(--shadow-neon);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-neon-hover);
}

.btn-secondary {
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  color: var(--text-primary);
}

.btn-secondary:hover {
  border-color: var(--accent-cyan);
  background: rgba(0, 242, 254, 0.03);
  transform: translateY(-3px);
}

.hero-visual {
  position: relative;
  width: 100%;
  height: 500px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-canvas-container {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
}

.hero-overlay-info {
  position: absolute;
  bottom: 2rem;
  left: 2rem;
  z-index: 5;
  background: rgba(8, 9, 11, 0.6);
  border: 1px solid var(--border-color);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  padding: 1rem;
  border-radius: 12px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  pointer-events: none;
}

.hero-overlay-info div {
  margin-bottom: 0.25rem;
}
.hero-overlay-info div:last-child {
  margin-bottom: 0;
}
.hero-overlay-info span {
  color: var(--accent-cyan);
}

/* Services Section */
.services {
  padding: 100px 0;
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2.5rem;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 3rem 2rem;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.05) 0%, transparent 100%);
  opacity: 0;
  transition: var(--transition-normal);
}

.service-card:hover {
  transform: translateY(-10px);
  border-color: rgba(0, 242, 254, 0.3);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 20px rgba(0, 242, 254, 0.05);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon {
  width: 60px;
  height: 60px;
  border-radius: 12px;
  background: rgba(0, 242, 254, 0.05);
  border: 1px solid rgba(0, 242, 254, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  margin-bottom: 2rem;
  font-size: 1.5rem;
  position: relative;
  z-index: 2;
  transition: var(--transition-normal);
}

.service-card:hover .service-icon {
  background: var(--accent-cyan);
  color: #000;
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.4);
}

.service-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  position: relative;
  z-index: 2;
}

.service-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  position: relative;
  z-index: 2;
}

/* Estimator Section */
.estimator {
  padding: 100px 0;
  position: relative;
}

.estimator-container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: start;
}

.estimator-form-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 3rem;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.form-group {
  margin-bottom: 2rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.form-input, .form-select {
  width: 100%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 0.85rem 1.2rem;
  font-size: 1rem;
  color: var(--text-primary);
  transition: var(--transition-fast);
}

.form-input:focus, .form-select:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.1);
  background: rgba(255, 255, 255, 0.05);
}

.form-select option {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
}

/* Custom range slider */
.range-slider {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.range-input {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  border-radius: 2px;
  background: var(--border-color);
  outline: none;
}

.range-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-cyan);
  cursor: pointer;
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.5);
  transition: var(--transition-fast);
}

.range-input::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.range-value {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--accent-cyan);
  min-width: 60px;
  text-align: right;
}

.material-selector {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.material-option {
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.02);
  border-radius: 12px;
  padding: 1.25rem;
  cursor: pointer;
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.material-option:hover {
  border-color: rgba(0, 242, 254, 0.4);
  background: rgba(0, 242, 254, 0.02);
}

.material-option.active {
  border-color: var(--accent-cyan);
  background: rgba(0, 242, 254, 0.05);
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.1);
}

.material-name {
  font-weight: 600;
  font-size: 1rem;
}

.material-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.estimator-results {
  background: linear-gradient(135deg, rgba(17, 19, 24, 0.8) 0%, rgba(255, 255, 255, 0.01) 100%);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 3rem;
  position: sticky;
  top: 110px;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

.results-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.5rem;
  margin-bottom: 2rem;
}

.results-title {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.price-display {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.price-amount {
  font-size: 3.5rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  line-height: 1;
}

.price-period {
  color: var(--text-secondary);
  font-size: 1rem;
}

.breakdown-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.breakdown-item {
  display: flex;
  justify-content: space-between;
  font-size: 0.95rem;
}

.breakdown-label {
  color: var(--text-secondary);
}

.breakdown-val {
  font-family: var(--font-mono);
  font-weight: 500;
}

.breakdown-item.total {
  border-top: 1px dashed var(--border-color);
  padding-top: 1.25rem;
  font-size: 1.1rem;
  font-weight: 700;
}

.breakdown-item.total .breakdown-val {
  color: var(--accent-cyan);
}

.results-cta {
  width: 100%;
}

/* Model Viewer Interactive Section */
.viewer-section {
  padding: 100px 0;
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.viewer-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 4rem;
  align-items: center;
}

.viewer-canvas-wrapper {
  width: 100%;
  height: 500px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  position: relative;
  overflow: hidden;
  box-shadow: inset 0 0 30px rgba(0, 0, 0, 0.8);
}

.viewer-canvas-container {
  width: 100%;
  height: 100%;
}

.viewer-ui {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  z-index: 5;
}

.viewer-btn {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(8, 9, 11, 0.8);
  border: 1px solid var(--border-color);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
  color: var(--text-secondary);
}

.viewer-btn:hover, .viewer-btn.active {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  background: rgba(0, 242, 254, 0.05);
}

.viewer-info {
  position: absolute;
  bottom: 1.5rem;
  left: 1.5rem;
  background: rgba(8, 9, 11, 0.8);
  border: 1px solid var(--border-color);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  padding: 0.75rem 1.25rem;
  border-radius: 10px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  pointer-events: none;
}

.viewer-loader {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  z-index: 10;
  transition: opacity var(--transition-normal);
}

.loader-spinner {
  width: 50px;
  height: 50px;
  border: 3px solid rgba(0, 242, 254, 0.1);
  border-top-color: var(--accent-cyan);
  border-radius: 50%;
  animation: spin 1s infinite linear;
}

/* Portfolio Section */
.portfolio {
  padding: 100px 0;
}

.portfolio-filters {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 4rem;
}

.filter-btn {
  padding: 0.6rem 1.5rem;
  border-radius: 50px;
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.02);
  cursor: pointer;
  transition: var(--transition-normal);
  font-size: 0.9rem;
  font-family: var(--font-mono);
}

.filter-btn:hover, .filter-btn.active {
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.15), rgba(79, 172, 254, 0.15));
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.1);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2.5rem;
}

.portfolio-item {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  transition: var(--transition-normal);
  position: relative;
  aspect-ratio: 4/3;
  cursor: pointer;
}

.portfolio-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

.portfolio-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(0deg, rgba(8, 9, 11, 0.95) 0%, rgba(8, 9, 11, 0.4) 60%, transparent 100%);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  opacity: 0;
  transition: var(--transition-normal);
}

.portfolio-item:hover {
  transform: translateY(-8px);
  border-color: rgba(0, 242, 254, 0.25);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.5);
}

.portfolio-item:hover .portfolio-img {
  transform: scale(1.08);
}

.portfolio-item:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-tag {
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  font-size: 0.8rem;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  letter-spacing: 0.1em;
}

.portfolio-item-title {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.portfolio-item-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* FAQ Section */
.faq {
  padding: 100px 0;
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  transition: var(--transition-normal);
}

.faq-item:hover {
  border-color: rgba(0, 242, 254, 0.2);
}

.faq-question {
  padding: 1.75rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.1rem;
  user-select: none;
}

.faq-icon {
  font-size: 1.25rem;
  transition: var(--transition-normal);
  color: var(--accent-cyan);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.faq-answer-inner {
  padding: 0 2rem 1.75rem;
}

.faq-item.active {
  border-color: rgba(0, 242, 254, 0.3);
  background: rgba(255, 255, 255, 0.03);
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

/* Contact Section */
.contact {
  padding: 120px 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 5rem;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.contact-title {
  font-size: 2.75rem;
  margin-bottom: 1.5rem;
}

.contact-desc {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

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

.contact-method {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.contact-icon {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: rgba(0, 242, 254, 0.05);
  border: 1px solid rgba(0, 242, 254, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--accent-cyan);
}

.contact-method-title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.25rem;
}

.contact-method-val {
  font-size: 1.1rem;
  font-weight: 500;
}

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 3rem;
  border-radius: 24px;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

/* Footer */
.footer {
  background: #050608;
  border-top: 1px solid var(--border-color);
  padding: 5rem 0 2.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 0.8fr);
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.footer-desc {
  color: var(--text-secondary);
  max-width: 320px;
  font-size: 0.95rem;
}

.footer-socials {
  display: flex;
  gap: 1rem;
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.social-link:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  background: rgba(0, 242, 254, 0.03);
  transform: translateY(-2px);
}

.footer-col-title {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1.75rem;
  color: var(--text-primary);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-link {
  color: var(--text-secondary);
  transition: var(--transition-fast);
  font-size: 0.95rem;
}

.footer-link:hover {
  color: var(--accent-cyan);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-copy {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Animations */
@keyframes spin {
  100% { transform: rotate(360deg); }
}

@keyframes pulse-glow {
  0% { box-shadow: 0 0 10px rgba(0, 242, 254, 0.2); }
  100% { box-shadow: 0 0 20px rgba(0, 242, 254, 0.4); }
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }
  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }
  .hero-btns {
    justify-content: center;
  }
  .hero-badge {
    margin-bottom: 1.5rem;
  }
  .hero-title {
    font-size: 3.25rem;
  }
  .hero-visual {
    height: 400px;
  }
  .estimator-container, .viewer-grid, .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .estimator-results {
    position: static;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 1.5rem;
  }
  .nav-links, .nav-cta {
    display: none;
  }
  .menu-toggle {
    display: flex;
  }
  
  /* Mobile menu active classes */
  .nav-links.mobile-active {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background: rgba(8, 9, 11, 0.95);
    backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--border-color);
    padding: 2rem;
    gap: 1.5rem;
    z-index: 99;
  }
  
  .section-title {
    font-size: 2rem;
  }
  .hero-title {
    font-size: 2.5rem;
  }
  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .estimator-form-wrapper, .contact-form, .estimator-results {
    padding: 2rem 1.5rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}