/* ============================================================
   GBS Factory China — Professional Site 2018-2020 Style
   ============================================================ */

/* ---- Design Tokens ---- */
:root {
  --color-primary: #D94A00;
  --color-primary-dark: #B33A00;
  --color-primary-light: #F05A1A;
  --color-dark: #0F1A2E;
  --color-dark-light: #1E2D45;
  --color-dark-lighter: #2A3E5C;
  --color-accent: #F4A100;
  --color-bg: #F8F6F3;
  --color-surface: #FFFFFF;
  --color-border: #E8E4DE;
  --color-text: #1C1F2B;
  --color-text-muted: #6B7280;
  --color-whatsapp: #25D366;
  --shadow-sm: 0 1px 3px rgba(15, 26, 46, 0.06);
  --shadow-md: 0 4px 16px rgba(15, 26, 46, 0.08);
  --shadow-lg: 0 12px 40px rgba(15, 26, 46, 0.12);
  --shadow-hover: 0 20px 60px rgba(15, 26, 46, 0.15);
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
  --font-heading: 'Inter', system-ui, -apple-system, sans-serif;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html { scroll-behavior: smooth; overflow-x: hidden; }

body {
  font-family: var(--font-main);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

/* ---- Typography ---- */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 800;
  line-height: 1.15;
  color: var(--color-text);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.2rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 4vw, 2.4rem); letter-spacing: -0.01em; margin-bottom: 12px; }
h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; }
h4 { font-size: 1.05rem; font-weight: 600; margin-bottom: 6px; }

p { color: var(--color-text-muted); font-size: 1rem; line-height: 1.7; }

/* ---- Container ---- */
.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 30px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  font-family: var(--font-main);
  letter-spacing: 0.01em;
}

.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0) scale(0.98); }

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(217, 74, 0, 0.3);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 6px 20px rgba(217, 74, 0, 0.35);
}

.btn-secondary {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.3);
}
.btn-secondary:hover {
  border-color: #fff;
  background: rgba(255,255,255,0.1);
}

.btn-light {
  background: #fff;
  color: var(--color-dark);
  box-shadow: 0 4px 14px rgba(15, 26, 46, 0.1);
}
.btn-light:hover {
  background: var(--color-bg);
  box-shadow: 0 6px 20px rgba(15, 26, 46, 0.15);
}

/* ---- Sections General ---- */
.section {
  padding: 90px 0;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 56px auto;
}

.section-header h2 {
  margin-bottom: 12px;
}

.section-header h2 span {
  color: var(--color-primary);
}

.section-header p {
  font-size: 1.1rem;
  color: var(--color-text-muted);
}

/* ============================================================
   ANNOUNCEMENT BAR
   ============================================================ */
.announcement-bar {
  background: var(--color-dark);
  color: rgba(255,255,255,0.85);
  text-align: center;
  padding: 10px 16px;
  font-size: 0.85rem;
  font-weight: 500;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.announcement-bar .announcement-close {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: rgba(255,255,255,0.5);
  cursor: pointer;
  padding: 4px;
  line-height: 1;
  transition: color 0.2s;
}

.announcement-bar .announcement-close:hover {
  color: #fff;
}

.announcement-bar svg {
  vertical-align: middle;
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 14px 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--color-dark);
  text-decoration: none;
}

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

.main-nav {
  display: flex;
  gap: 8px;
}

.main-nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  position: relative;
  transition: color var(--transition);
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 14px;
  right: 14px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
  transform: scaleX(0);
  transition: transform var(--transition);
}

.main-nav a:hover { color: var(--color-dark); }
.main-nav a:hover::after { transform: scaleX(1); }

.header-cta {
  padding: 10px 22px;
  font-size: 0.85rem;
}

/* ---- Hamburger ---- */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-dark);
  margin: 5px 0;
  transition: all 0.3s;
  border-radius: 1px;
}

.nav-toggle.is-open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 90vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.hero-content {
  background: var(--color-dark);
  color: #fff;
  padding: 80px 60px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-content h1 {
  color: #fff;
  margin-bottom: 20px;
  max-width: 520px;
}

.hero-content p {
  color: rgba(255,255,255,0.75);
  font-size: 1.1rem;
  margin-bottom: 36px;
  max-width: 480px;
  line-height: 1.75;
}

.hero-content .hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-content .hero-actions .btn svg {
  margin-right: 4px;
}

/* Hero Stats */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.hero-stat {
  text-align: center;
}

.hero-stat .stat-number {
  display: block;
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1.2;
}

.hero-stat .stat-label {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.55);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 500;
}

.hero-visual {
  position: relative;
  overflow: hidden;
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
}

.hero-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to left, transparent 40%, var(--color-dark) 100%);
  pointer-events: none;
}

/* ============================================================
   STATS COUNTER BAR (full-width separator)
   ============================================================ */
.stats-bar {
  background: var(--color-dark-lighter);
  padding: 60px 0;
}

.stats-bar .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-item {
  text-align: center;
  color: #fff;
}

.stat-item .stat-icon {
  margin-bottom: 12px;
  color: var(--color-accent);
}

.stat-item .stat-number {
  display: block;
  font-size: 2.4rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
}

.stat-item .stat-label {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  margin-top: 4px;
  font-weight: 500;
}

/* ============================================================
   SERVICES
   ============================================================ */
.services {
  background: var(--color-surface);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: transparent;
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card .service-icon {
  width: 52px;
  height: 52px;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.service-card:hover .service-icon {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(217, 74, 0, 0.25);
}

.service-card h3 {
  margin-bottom: 10px;
}

.service-card p {
  font-size: 0.92rem;
  line-height: 1.65;
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
}

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

.about-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(217,74,0,0.15), rgba(244,161,0,0.1));
  pointer-events: none;
}

.about-checkmarks {
  list-style: none;
  margin: 24px 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.about-checkmarks li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--color-text);
}

.about-checkmarks li svg {
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--color-primary);
}

/* ============================================================
   PROCESS / HOW IT WORKS
   ============================================================ */
.process {
  background: var(--color-surface);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
}

.process-grid::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 60px;
  right: 60px;
  height: 2px;
  background: linear-gradient(to right, var(--color-primary) 0%, var(--color-primary) 100%);
  opacity: 0.2;
}

.process-step {
  text-align: center;
  position: relative;
}

.process-step .step-number {
  width: 64px;
  height: 64px;
  background: var(--color-surface);
  border: 3px solid var(--color-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px auto;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-primary);
  position: relative;
  z-index: 2;
  transition: all var(--transition);
}

.process-step:hover .step-number {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 0 0 8px rgba(217,74,0,0.1);
}

.process-step .step-icon {
  margin-bottom: 12px;
  color: var(--color-text-muted);
}

.process-step h4 {
  margin-bottom: 6px;
}

.process-step p {
  font-size: 0.88rem;
}

/* ============================================================
   PRODUCTS
   ============================================================ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

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

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

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

.product-card .product-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15,26,46,0.85) 0%, rgba(15,26,46,0.1) 60%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
  transition: opacity var(--transition);
}

.product-card .product-overlay h4 {
  color: #fff;
  margin-bottom: 4px;
}

.product-card .product-overlay span {
  color: rgba(255,255,255,0.65);
  font-size: 0.85rem;
}

.product-card.placeholder .product-overlay {
  background: linear-gradient(135deg, var(--color-dark-light), var(--color-primary-dark));
}

.product-card.placeholder .product-overlay h4 {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ============================================================
   GALLERY
   ============================================================ */
.gallery-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 16px;
}

.gallery-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
}

.gallery-item.large {
  grid-row: span 2;
}

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

.gallery-item:hover img {
  transform: scale(1.06);
}

.gallery-item .gallery-label {
  position: absolute;
  inset: 0;
  background: rgba(15,26,46,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}

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

.gallery-item .gallery-label span {
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  padding: 8px 20px;
  border: 2px solid rgba(255,255,255,0.4);
  border-radius: var(--radius-sm);
}

/* ============================================================
   TESTIMONIAL CAROUSEL
   ============================================================ */
.testimonials {
  background: var(--color-surface);
}

.carousel {
  position: relative;
  max-width: 780px;
  margin: 0 auto;
}

.carousel-track-wrap {
  overflow: hidden;
  border-radius: var(--radius-lg);
}

.carousel-track {
  display: flex;
  transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform;
}

.carousel-slide {
  min-width: 100%;
}

.review-card {
  padding: 48px 44px;
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.review-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 16px;
}

.review-stars {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
  color: var(--color-accent);
}

.review-card blockquote {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-text);
  margin-bottom: 20px;
  font-style: italic;
  position: relative;
  padding-left: 20px;
  border-left: 3px solid var(--color-primary);
}

.review-author strong {
  display: block;
  font-size: 1rem;
  color: var(--color-text);
  margin-bottom: 2px;
}

.review-author span {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* Carousel buttons */
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  transition: all 0.2s;
  z-index: 2;
  box-shadow: var(--shadow-sm);
}

.carousel-btn:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.carousel-btn--prev { left: -24px; }
.carousel-btn--next { right: -24px; }

/* Carousel dots */
.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 28px;
}

.carousel-dots .dot {
  width: 12px;
  height: 12px;
  background: var(--color-border);
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s;
  border: none;
  padding: 0;
}

.carousel-dots .dot.active {
  background: var(--color-primary);
  transform: scale(1.3);
}

.carousel-dots .dot:hover {
  background: var(--color-primary-light);
}

/* ============================================================
   CTA BANNER
   ============================================================ */
.cta-banner {
  background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-primary) 100%);
  text-align: center;
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.05) 0%, transparent 50%);
  pointer-events: none;
}

.cta-banner h2 {
  color: #fff;
  margin-bottom: 12px;
}

.cta-banner p {
  color: rgba(255,255,255,0.75);
  font-size: 1.1rem;
  margin-bottom: 36px;
}

.cta-banner .cta-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-info h2 {
  margin-bottom: 12px;
}

.contact-info > p {
  margin-bottom: 32px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 32px;
}

.detail-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.detail-item .detail-icon {
  width: 40px;
  height: 40px;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-primary);
}

.detail-item .detail-label {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-bottom: 2px;
  font-weight: 600;
}

.detail-item a, .detail-item span {
  color: var(--color-text);
  font-size: 1rem;
  font-weight: 500;
}

.detail-item a:hover { color: var(--color-primary); }

/* Contact Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-text);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-main);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-surface);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(217,74,0,0.08);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-submit {
  align-self: flex-start;
}

.form-thankyou {
  display: none;
  padding: 24px;
  background: rgba(244,161,0,0.08);
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-md);
  color: var(--color-dark);
  font-weight: 500;
  text-align: center;
}

.form-thankyou.is-visible {
  display: block;
}

.contact-map {
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 380px;
  box-shadow: var(--shadow-sm);
}

.contact-map iframe {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 380px;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-dark);
  color: rgba(255,255,255,0.7);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer-brand .logo {
  color: #fff;
  font-size: 1.2rem;
  margin-bottom: 12px;
}

.footer-brand .logo .logo-factory {
  color: var(--color-accent);
}

.footer-brand p {
  color: rgba(255,255,255,0.5);
  font-size: 0.9rem;
  max-width: 280px;
  line-height: 1.7;
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.08);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.6);
  transition: all 0.2s;
}

.footer-social a:hover {
  background: var(--color-primary);
  color: #fff;
}

.footer-col h4 {
  color: #fff;
  font-size: 0.95rem;
  margin-bottom: 20px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul a {
  color: rgba(255,255,255,0.5);
  font-size: 0.9rem;
  transition: color 0.2s;
}

.footer-col ul a:hover {
  color: var(--color-accent);
}

.footer-col .footer-contact-item {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.5);
}

.footer-col .footer-contact-item svg {
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--color-accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.4);
}

.footer-bottom-links {
  display: flex;
  gap: 20px;
}

.footer-bottom-links a {
  color: rgba(255,255,255,0.4);
  transition: color 0.2s;
}

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

/* ============================================================
   FLOATING WHATSAPP BUTTON
   ============================================================ */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  width: 56px;
  height: 56px;
  background: var(--color-whatsapp);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.35);
  transition: all 0.2s;
  animation: whatsapp-pulse 2s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.5);
  animation: none;
}

@keyframes whatsapp-pulse {
  0% { box-shadow: 0 4px 16px rgba(37, 211, 102, 0.35); }
  50% { box-shadow: 0 4px 24px rgba(37, 211, 102, 0.55); }
  100% { box-shadow: 0 4px 16px rgba(37, 211, 102, 0.35); }
}

/* ============================================================
   SCROLL REVEAL ANIMATIONS
   ============================================================ */
.reveal {
  opacity: 0;
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.reveal--fade-up { transform: translateY(50px); }
.reveal--fade-down { transform: translateY(-30px); }
.reveal--fade-left { transform: translateX(-40px); }
.reveal--fade-right { transform: translateX(40px); }
.reveal--scale { transform: scale(0.9); }

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* Delay helpers */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }
.delay-6 { transition-delay: 0.6s; }

/* ============================================================
   RESPONSIVE — Mobile First / Desktop Enhancements
   ============================================================ */

/* Small phones */
@media (max-width: 479px) {
  .container { padding: 0 16px; }
  .section { padding: 60px 0; }
  h2 { font-size: 1.5rem; }

  .hero { grid-template-columns: 1fr; }
  .hero-content { padding: 48px 24px; }
  .hero-content p { font-size: 1rem; }
  .hero-content .hero-actions { flex-direction: column; }
  .hero-content .hero-actions .btn { width: 100%; justify-content: center; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .hero-stat .stat-number { font-size: 1.4rem; }
  .hero {
    grid-template-columns: 1fr;
    background: var(--color-dark);
  }
  .hero-content { padding: 48px 24px 40px; }
  .hero-visual {
    display: block;
    height: 240px;
    order: -1;
  }
  .hero-visual img {
    position: relative;
    height: 100%;
    object-fit: cover;
  }
  .hero-visual::after {
    background: linear-gradient(to bottom, rgba(15,26,46,0.3) 0%, var(--color-dark) 100%);
  }

  .stats-bar .container { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .stat-item .stat-number { font-size: 1.8rem; }

  .services-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .process-grid { grid-template-columns: 1fr; gap: 40px; }
  .process-grid::before { display: none; }

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

  .gallery-grid { grid-template-columns: 1fr; grid-template-rows: auto; }
  .gallery-item.large { grid-row: auto; }

  .carousel-btn { display: none; }
  .review-card { padding: 28px 20px; }

  .cta-banner { padding: 60px 0; }

  .contact-layout { grid-template-columns: 1fr; gap: 32px; }
  .contact-map { min-height: 260px; }
  .contact-map iframe { min-height: 260px; }

  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* Phones & small tablets */
@media (min-width: 480px) and (max-width: 767px) {
  .section { padding: 70px 0; }

  .hero { grid-template-columns: 1fr; }
  .hero-content { padding: 60px 32px 40px; }
  .hero-visual {
    display: block;
    height: 280px;
    order: -1;
  }
  .hero-visual img {
    position: relative;
    height: 100%;
  }
  .hero-visual::after {
    background: linear-gradient(to bottom, rgba(15,26,46,0.3) 0%, var(--color-dark) 100%);
  }

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

  .services-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .process-grid::before { display: none; }

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

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

  .carousel-btn { width: 40px; height: 40px; }
  .carousel-btn--prev { left: -8px; }
  .carousel-btn--next { right: -8px; }

  .contact-layout { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

/* Tablets */
@media (min-width: 768px) and (max-width: 1023px) {
  .hero-content { padding: 60px 40px; }
  .hero-content .hero-actions { flex-direction: column; }
  .hero-content .hero-actions .btn { width: 100%; justify-content: center; }
  .hero-stats { gap: 8px; }
  .hero-stat .stat-number { font-size: 1.4rem; }

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

  .about-grid { gap: 32px; }

  .process-grid { gap: 24px; }
  .process-grid::before { left: 40px; right: 40px; }

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

  .carousel-btn { width: 40px; height: 40px; }
  .carousel-btn--prev { left: -12px; }
  .carousel-btn--next { right: -12px; }

  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

/* Hide hamburger on desktop */
@media (min-width: 768px) {
  .nav-toggle { display: none !important; }
  .main-nav { display: flex !important; }
}

/* Mobile nav */
@media (max-width: 767px) {
  .nav-toggle { display: block; }

  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-surface);
    flex-direction: column;
    padding: 16px;
    box-shadow: var(--shadow-lg);
    border-bottom: 2px solid var(--color-primary);
    gap: 4px;
  }

  .main-nav.is-open { display: flex; }

  .main-nav a {
    padding: 12px 16px;
    font-size: 1rem;
    border-radius: var(--radius-sm);
  }

  .main-nav a::after { display: none; }

  .main-nav a:hover {
    background: var(--color-bg);
    color: var(--color-primary);
  }

  .header-cta { display: none; }
}

/* Desktop navbar shows always */
@media (min-width: 1024px) {
  .hero-content {
    padding: 100px 80px;
  }

  .hero-stat .stat-number {
    font-size: 2rem;
  }
}