:root {
  --primary: #0f172a;
  --primary-light: #1e293b;
  --primary-mid: #334155;
  --accent: #3d85ad;
  --accent-hover: #326f91;
  --accent-light: #5ba0c4;
  --accent-glow: rgba(61, 133, 173, 0.15);
  --bg-light: #f8fafc;
  --bg-cool: #f1f5f9;
  --white: #ffffff;
  --text-dark: #0f172a;
  --text-body: #475569;
  --text-light: #64748b;
  --text-muted: #94a3b8;
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.1);
  --shadow-xl: 0 24px 48px rgba(15, 23, 42, 0.12);
  --radius: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --font-heading: 'Plus Jakarta Sans', system-ui, sans-serif;
  --font-body: 'Figtree', system-ui, sans-serif;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-body);
  color: var(--text-body);
  line-height: 1.7;
  background: var(--white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Buttons ---- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.01em;
  padding: 12px 28px;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.btn-accent {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}

.btn-accent:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(61, 133, 173, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.25);
}

.btn-outline:hover {
  background: var(--white);
  color: var(--primary);
  border-color: var(--white);
}

.btn-dark {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

.btn-dark:hover {
  background: var(--primary-light);
  border-color: var(--primary-light);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-lg {
  padding: 16px 40px;
  font-size: 0.9rem;
}

.btn-sm {
  padding: 10px 22px;
  font-size: 0.75rem;
}

.btn-full { width: 100%; }

/* ---- Navigation ---- */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: all 0.4s ease;
}

.navbar.scrolled {
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(16px);
  padding: 10px 0;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.05);
}

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

.nav-logo {
  display: flex;
  align-items: center;
  color: var(--white);
}

.nav-logo-img {
  height: 72px;
  width: auto;
  object-fit: contain;
  border-radius: 4px;
}

.footer-logo-img {
  height: 64px;
  width: auto;
  object-fit: contain;
  margin: 0 auto;
  border-radius: 4px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 36px;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.6);
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  position: relative;
  padding: 4px 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition);
}

.nav-links a:hover {
  color: var(--white);
}

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

.nav-cta {
  padding: 10px 24px;
  font-size: 0.78rem;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  transition: all var(--transition);
}

/* ---- Hero ---- */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: var(--primary);
  z-index: 0;
}

.hero-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 70% 50%, rgba(61, 133, 173, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 20% 80%, rgba(61, 133, 173, 0.05) 0%, transparent 50%);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 160px 0 120px;
  max-width: 680px;
}

.hero-tag {
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 28px;
  display: flex;
  align-items: center;
  gap: 12px;
  opacity: 0;
  animation: fadeUp 0.7s 0.2s forwards;
}

.hero-tag::before {
  content: '';
  width: 32px;
  height: 2px;
  background: var(--accent);
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(3.2rem, 6.5vw, 5.5rem);
  font-weight: 800;
  line-height: 1.05;
  color: var(--white);
  margin-bottom: 28px;
  letter-spacing: -0.03em;
  opacity: 0;
  animation: fadeUp 0.7s 0.35s forwards;
}

.hero-title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--accent-light), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.1rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 40px;
  max-width: 500px;
  opacity: 0;
  animation: fadeUp 0.7s 0.5s forwards;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 44px;
  opacity: 0;
  animation: fadeUp 0.7s 0.65s forwards;
}

.badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  color: rgba(255, 255, 255, 0.75);
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
}

.badge svg {
  color: var(--accent-light);
  flex-shrink: 0;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.7s 0.8s forwards;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  z-index: 1;
  opacity: 0;
  animation: fadeIn 1s 1.5s forwards;
}

.hero-scroll span {
  font-family: var(--font-heading);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.25);
  font-weight: 600;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.2), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

/* ---- Sections ---- */

.section {
  padding: 110px 0;
}

.section-light {
  background: var(--bg-light);
}

.section-cream {
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-dark {
  background: var(--primary);
  position: relative;
}

.section-dark::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.section-header {
  text-align: center;
  margin-bottom: 72px;
}

.section-tag {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.section-tag-light {
  color: var(--accent-light);
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--text-dark);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-title em {
  font-style: normal;
  color: var(--accent);
}

.section-title-light {
  color: var(--white);
}

.section-desc {
  font-size: 1rem;
  color: var(--text-light);
  max-width: 480px;
  margin: 0 auto;
  line-height: 1.7;
}

.section-desc-light {
  color: rgba(255, 255, 255, 0.45);
}

/* ---- About ---- */

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: start;
}

.about-text {
  padding-top: 4px;
}

.about-lead {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 16px;
  line-height: 1.6;
}

.about-text p {
  margin-bottom: 16px;
  line-height: 1.8;
}

.about-guarantee {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 24px 28px;
  background: var(--accent-glow);
  border-left: 3px solid var(--accent);
  margin-top: 28px;
  border-radius: 0 var(--radius) var(--radius) 0;
}

.about-guarantee svg {
  flex-shrink: 0;
  color: var(--accent);
  margin-top: 3px;
}

.about-guarantee strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 6px;
}

.about-guarantee p {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--text-body);
  margin-bottom: 0;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.feature-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
}

.feature-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
}

.feature-card svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--accent);
}

.feature-card span {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-dark);
}

/* ---- Size Guide ---- */

.sizes-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
}

.sizes-grid-3 {
  grid-template-columns: repeat(3, 1fr);
  max-width: 900px;
  margin: 0 auto;
  gap: 20px;
}

.size-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 16px 24px;
  text-align: center;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

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

.size-card-popular {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), var(--shadow-md);
}

.popular-tag {
  position: absolute;
  top: -11px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 14px;
  background: var(--accent);
  color: var(--white);
  font-family: var(--font-heading);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius);
  white-space: nowrap;
}

.size-card-header {
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-light);
}

.size-sqft {
  font-family: var(--font-heading);
  font-size: 2.6rem;
  font-weight: 800;
  color: var(--text-dark);
  line-height: 1;
  letter-spacing: -0.03em;
}

.size-unit {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.size-card-body {
  flex: 1;
  margin-bottom: 20px;
}

.size-comparison {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--text-dark);
  font-size: 0.9rem;
  margin-bottom: 6px;
}

.size-dimensions {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-bottom: 10px;
}

.size-suitable {
  font-size: 0.82rem;
  color: var(--text-body);
  line-height: 1.5;
}

.size-price {
  text-align: center;
  padding: 16px 0 8px;
  margin-top: auto;
  border-top: 1px solid var(--border-light);
}

.price-amount {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.price-period {
  display: block;
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 2px;
}

.size-card-footer {
  margin-top: 12px;
}

.sizes-note {
  text-align: center;
  margin-top: 40px;
  font-size: 0.92rem;
  color: var(--text-light);
}

/* ---- How It Works ---- */

.steps-grid {
  display: flex;
  align-items: stretch;
  gap: 0;
  justify-content: center;
}

.step-card {
  flex: 1;
  max-width: 340px;
  padding: 40px 32px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: all var(--transition);
}

.step-card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-md);
}

.step-number {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 20px;
  letter-spacing: -0.03em;
  opacity: 0.6;
}

.step-content h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
}

.step-content p {
  font-size: 0.9rem;
  color: var(--text-body);
  line-height: 1.75;
}

.step-connector {
  display: flex;
  align-items: center;
  padding: 0 8px;
  color: var(--border);
  margin-top: 60px;
}

/* ---- Quote Form ---- */

.quote-form-wrapper {
  max-width: 600px;
  margin: 0 auto;
  background: var(--primary-light);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  z-index: 1;
}

.quote-form {
  padding: 32px;
}

.radio-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.form-group .radio-option {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  text-transform: none;
  letter-spacing: 0;
  font-weight: 400;
}

.radio-option:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.15);
}

.radio-option input[type="radio"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  flex-shrink: 0;
  margin: 0;
  padding: 0;
}

.radio-option input[type="radio"]:checked + .radio-label {
  color: var(--white);
}

.radio-option:has(input:checked) {
  border-color: var(--accent);
  background: var(--accent-glow);
}

.radio-label {
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.7);
  text-transform: none;
  letter-spacing: 0;
}

.radio-label small {
  display: block;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
  margin-top: 4px;
  text-transform: none;
  letter-spacing: 0;
}

.quote-result {
  padding: 20px 24px;
  background: rgba(61, 133, 173, 0.1);
  border: 1px solid rgba(61, 133, 173, 0.25);
  border-radius: var(--radius-md);
  margin-bottom: 20px;
}

.quote-price {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 6px;
}

.quote-price strong {
  font-size: 1.4rem;
  color: var(--accent-light);
}

.quote-note {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.5;
}

.quote-contact-note {
  text-align: center;
  margin-top: 16px;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.35);
  line-height: 1.6;
}

.quote-contact-note a {
  color: var(--accent-light);
}

.quote-contact-note a:hover {
  text-decoration: underline;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}

.shake {
  animation: shake 0.5s ease;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 8px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 0.92rem;
  transition: all var(--transition);
  outline: none;
}

.form-group input::placeholder {
  color: rgba(255, 255, 255, 0.25);
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group select option {
  background: var(--primary);
  color: var(--white);
}

/* ---- Gallery ---- */

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  grid-auto-flow: dense;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4/3;
}

.gallery-item-wide {
  grid-column: span 2;
}

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

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

.gallery-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.5s ease;
}

.gallery-placeholder svg {
  width: 40px;
  height: 40px;
  color: rgba(255, 255, 255, 0.15);
}

.gallery-item:hover .gallery-placeholder {
  transform: scale(1.05);
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.9), transparent 60%);
  display: flex;
  align-items: flex-end;
  padding: 20px;
  opacity: 0;
  transition: opacity var(--transition);
}

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

.gallery-overlay span {
  color: var(--white);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.88rem;
  transform: translateY(6px);
  transition: transform var(--transition);
  letter-spacing: 0.01em;
}

.gallery-item:hover .gallery-overlay span {
  transform: translateY(0);
}

/* ---- Contact ---- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.contact-desc {
  color: rgba(255, 255, 255, 0.45);
  margin-bottom: 40px;
  font-size: 1rem;
  line-height: 1.7;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-item svg {
  width: 22px;
  height: 22px;
  color: var(--accent-light);
  flex-shrink: 0;
  margin-top: 4px;
}

.contact-item strong {
  display: block;
  color: var(--white);
  font-family: var(--font-heading);
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.contact-item p {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.92rem;
  line-height: 1.5;
}

.map-placeholder {
  width: 100%;
  height: 360px;
  background: var(--primary-light);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.map-placeholder svg {
  width: 36px;
  height: 36px;
  color: rgba(255, 255, 255, 0.1);
}

.map-placeholder p {
  color: rgba(255, 255, 255, 0.2);
  font-size: 0.82rem;
  font-family: var(--font-heading);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ---- Footer ---- */

.footer {
  background: #080c14;
  padding: 56px 0 36px;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.footer-container {
  text-align: center;
}

.footer .nav-logo {
  justify-content: center;
  margin-bottom: 10px;
}

.footer-tagline {
  color: rgba(255, 255, 255, 0.3);
  font-size: 0.85rem;
  margin-bottom: 28px;
}

.footer-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 28px;
  margin-bottom: 36px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.35);
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  transition: color var(--transition);
}

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

.footer-bottom p {
  color: rgba(255, 255, 255, 0.2);
  font-size: 0.78rem;
}

/* ---- Lightbox ---- */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.92);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  padding: 40px;
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 28px;
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.7);
  font-size: 2.4rem;
  cursor: pointer;
  line-height: 1;
  transition: color var(--transition), transform var(--transition);
  z-index: 2001;
}

.lightbox-close:hover {
  color: var(--white);
  transform: scale(1.15);
}

.lightbox-content {
  max-width: 85vw;
  max-height: 75vh;
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0.92);
  transition: transform 0.3s ease;
}

.lightbox.active .lightbox-content {
  transform: scale(1);
}

.lightbox-content img {
  max-width: 100%;
  max-height: 75vh;
  object-fit: contain;
  border-radius: var(--radius-md);
}

.lightbox-content .gallery-placeholder {
  width: 85vw;
  max-width: 900px;
  height: 60vh;
  border-radius: var(--radius-md);
}

.lightbox-caption {
  margin-top: 20px;
  color: rgba(255, 255, 255, 0.7);
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

/* ---- WhatsApp Button ---- */

.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 999;
  width: 56px;
  height: 56px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.35);
  transition: all var(--transition);
  border: none;
  cursor: pointer;
}

.whatsapp-float:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.45);
}

.whatsapp-float svg {
  width: 28px;
  height: 28px;
  fill: var(--white);
}

/* ---- Scroll Reveal ---- */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Animations ---- */

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50% { opacity: 0.7; transform: scaleY(1.2); transform-origin: top; }
}

/* ---- Responsive ---- */

@media (max-width: 1024px) {
  .sizes-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .steps-grid {
    flex-wrap: wrap;
    justify-content: center;
  }

  .step-connector {
    display: none;
  }

  .step-card {
    max-width: 100%;
    flex: 1 1 280px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 80px 0;
  }

  .nav-links,
  .nav-cta {
    display: none;
  }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.98);
    backdrop-filter: blur(16px);
    padding: 16px 24px;
    gap: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
  }

  .nav-links.open li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  }

  .nav-links.open a {
    display: block;
    padding: 14px 0;
    font-size: 0.95rem;
  }

  .mobile-toggle {
    display: flex;
  }

  .mobile-toggle.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .mobile-toggle.open span:nth-child(2) {
    opacity: 0;
  }

  .mobile-toggle.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .hero-content {
    padding: 130px 0 80px;
  }

  .hero-title {
    font-size: 2.6rem;
  }

  .hero-badges {
    gap: 8px;
  }

  .badge {
    padding: 8px 14px;
    font-size: 0.75rem;
  }

  .hero-scroll {
    display: none;
  }

  .sizes-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

  .gallery-item-wide {
    grid-column: span 2;
  }

  .section-title {
    font-size: 1.9rem;
  }

  .section-header {
    margin-bottom: 48px;
  }

  .whatsapp-float {
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
  }

  .whatsapp-float svg {
    width: 24px;
    height: 24px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2.1rem;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
  }

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

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

  .gallery-item-wide {
    grid-column: span 1;
  }

  .steps-grid {
    flex-direction: column;
  }

  .step-card {
    flex: 1 1 auto;
  }

  .footer-links {
    flex-direction: column;
    gap: 10px;
  }
}