/* ============================================
   IRFAN PAINT STORE - Diamond Paints Theme
   Exact replica styling
   ============================================ */

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

:root {
  --primary-blue: #1a3a5c;
  --primary-red: #cc0000;
  --accent-orange: #e65100;
  --text-dark: #1a1a2e;
  --text-gray: #555;
  --text-light: #888;
  --bg-white: #ffffff;
  --bg-light: #f8f9fa;
  --bg-cream: #faf8f5;
  --border-light: #e5e7eb;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --transition: all 0.3s ease;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-main);
  color: var(--text-dark);
  background: var(--bg-white);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

.hidden {
  display: none !important;
}

/* ============================================
   ANNOUNCEMENT BAR (like Diamond Paints top bar)
   ============================================ */
.announcement-bar {
  background: var(--primary-blue);
  color: #fff;
  padding: 8px 16px;
  font-size: 12px;
  text-align: center;
  position: relative;
  z-index: 100;
}

.announcement-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.announcement-separator {
  opacity: 0.4;
}

.announcement-content i {
  margin-right: 4px;
  font-size: 11px;
}

/* ============================================
   HEADER / NAVBAR
   ============================================ */
.main-header {
  background: var(--bg-white);
  border-bottom: 1px solid var(--border-light);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 20px;
  max-width: 1400px;
  margin: 0 auto;
}

.hamburger-btn {
  background: none;
  border: none;
  font-size: 22px;
  color: var(--text-dark);
  cursor: pointer;
  padding: 8px;
  transition: var(--transition);
}

.hamburger-btn:hover {
  color: var(--primary-blue);
}

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

.logo-img {
  height: 60px;
  width: auto;
  object-fit: contain;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.search-btn, .cart-btn {
  background: none;
  border: none;
  font-size: 20px;
  color: var(--text-dark);
  cursor: pointer;
  padding: 8px;
  transition: var(--transition);
}

.search-btn:hover, .cart-btn:hover {
  color: var(--primary-blue);
}

.cart-btn {
  color: #25D366;
  font-size: 24px;
}

/* ============================================
   MOBILE MENU (Diamond Paints style)
   ============================================ */
.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.5);
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.mobile-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu {
  position: absolute;
  top: 0;
  left: 0;
  width: 85%;
  max-width: 400px;
  height: 100vh;
  background: var(--bg-white);
  transform: translateX(-100%);
  transition: transform 0.35s ease;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.mobile-menu-overlay.active .mobile-menu {
  transform: translateX(0);
}

.mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-light);
}

.close-menu-btn {
  background: none;
  border: none;
  font-size: 22px;
  color: var(--text-dark);
  cursor: pointer;
  padding: 8px;
}

.mobile-logo {
  height: 50px;
  object-fit: contain;
}

.mobile-header-actions {
  display: flex;
  gap: 12px;
}

.mobile-header-actions button, 
.mobile-header-actions a {
  background: none;
  border: none;
  font-size: 18px;
  color: var(--text-dark);
  cursor: pointer;
  padding: 6px;
}

.mobile-nav {
  flex: 1;
  padding: 16px 0;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-dark);
  border-bottom: 1px solid #f0f0f0;
  transition: var(--transition);
}

.mobile-nav-link:hover, .mobile-nav-link.active {
  background: #f5f5f5;
  color: var(--primary-blue);
}

.mobile-nav-link i {
  font-size: 12px;
  color: var(--text-light);
}

.mobile-menu-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-light);
}

.mobile-footer-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  font-size: 14px;
  color: var(--text-gray);
}

.mobile-footer-link i {
  width: 20px;
  text-align: center;
  font-size: 16px;
}

.mobile-social {
  display: flex;
  gap: 16px;
  padding: 20px 24px;
  border-top: 1px solid var(--border-light);
}

.mobile-social a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #f0f0f0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dark);
  font-size: 16px;
  transition: var(--transition);
}

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

/* ============================================
   SEARCH OVERLAY
   ============================================ */
.search-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: var(--bg-white);
  z-index: 3000;
  padding: 20px;
  box-shadow: var(--shadow-lg);
  transform: translateY(-100%);
  transition: transform 0.3s ease;
}

.search-overlay.active {
  transform: translateY(0);
}

.search-container {
  display: flex;
  align-items: center;
  max-width: 600px;
  margin: 0 auto;
  gap: 12px;
}

.search-input {
  flex: 1;
  padding: 12px 16px;
  border: 2px solid var(--border-light);
  border-radius: 8px;
  font-size: 16px;
  outline: none;
  transition: var(--transition);
  font-family: var(--font-main);
}

.search-input:focus {
  border-color: var(--primary-blue);
}

.search-close-btn {
  background: none;
  border: none;
  font-size: 20px;
  color: var(--text-gray);
  cursor: pointer;
  padding: 8px;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero-section {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.hero-slider {
  position: relative;
}

.hero-slide {
  position: relative;
  width: 100%;
  height: 280px;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,0,0,0.3) 0%, rgba(0,0,0,0.1) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
}

.hero-badge {
  display: inline-block;
  background: var(--primary-red);
  color: #fff;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: 1px;
}

.hero-title {
  font-size: 28px;
  font-weight: 800;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
  letter-spacing: 2px;
}

.hero-highlight {
  color: #FFD700;
  font-style: italic;
  font-family: var(--font-display);
  font-size: 36px;
}

/* ============================================
   SECTIONS COMMON
   ============================================ */
.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section-title {
  text-align: center;
  font-size: 24px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
  line-height: 1.3;
}

.section-subtitle {
  text-align: center;
  font-size: 14px;
  color: var(--text-gray);
  margin-bottom: 24px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   PRODUCTS SECTION
   ============================================ */
.products-section {
  padding: 40px 0 30px;
  background: var(--bg-white);
}

.product-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 30px;
  padding: 0 10px;
}

.product-tab {
  padding: 10px 20px;
  border: 2px solid var(--primary-blue);
  background: var(--bg-white);
  color: var(--primary-blue);
  border-radius: 30px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-main);
  white-space: nowrap;
}

.product-tab.active {
  background: var(--primary-blue);
  color: #fff;
}

.product-tab.outline {
  border-color: #ccc;
  color: var(--text-gray);
}

.product-tab.outline:hover, .product-tab.outline.active {
  border-color: var(--primary-blue);
  background: var(--primary-blue);
  color: #fff;
}

.product-tab:hover {
  background: var(--primary-blue);
  color: #fff;
}

.product-carousel-wrapper {
  position: relative;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  padding: 0 10px;
}

.product-card {
  background: var(--bg-white);
  border-radius: 12px;
  padding: 16px;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.product-card img {
  width: 100%;
  max-height: 200px;
  object-fit: contain;
  margin-bottom: 12px;
}

.product-card h3 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-dark);
  line-height: 1.3;
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #ddd;
  cursor: pointer;
  transition: var(--transition);
}

.carousel-dot.active {
  background: var(--primary-blue);
}

/* ============================================
   COLOR FAMILIES SECTION
   ============================================ */
.color-families-section {
  padding: 40px 0 0;
  background: var(--bg-white);
}

.color-families-list {
  margin-top: 24px;
}

.color-family-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  color: #fff;
  transition: var(--transition);
  cursor: pointer;
}

.color-family-row:hover {
  opacity: 0.9;
  padding-left: 28px;
}

.color-family-content {
  display: flex;
  align-items: center;
  gap: 12px;
}

.color-plus i {
  font-size: 22px;
  opacity: 0.9;
}

.color-name {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.color-see-all {
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.color-see-all i {
  font-size: 11px;
}

/* ============================================
   ARTISTA SECTION
   ============================================ */
.artista-section {
  margin-top: 40px;
}

.artista-bg {
  background: linear-gradient(135deg, #3e1a07 0%, #1a0a03 40%, #2c1505 70%, #4a2a10 100%);
  padding: 50px 20px 40px;
  position: relative;
  overflow: hidden;
}

.artista-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse at 30% 50%, rgba(139,69,19,0.4) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 30%, rgba(101,67,33,0.3) 0%, transparent 50%);
}

.artista-content {
  position: relative;
  z-index: 2;
  text-align: center;
  margin-bottom: 30px;
}

.artista-logo-text {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 400;
  color: rgba(255,255,255,0.9);
  letter-spacing: 8px;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.artista-title {
  font-size: 20px;
  font-weight: 700;
  color: #D4AF37;
  letter-spacing: 4px;
  margin-bottom: 16px;
}

.artista-divider {
  width: 60px;
  height: 3px;
  background: #D4AF37;
  margin: 0 auto 16px;
}

.artista-desc {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 15px;
  color: rgba(255,255,255,0.7);
  max-width: 400px;
  margin: 0 auto;
  line-height: 1.6;
}

.artista-products {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.artista-nav-btn {
  background: rgba(255,255,255,0.15);
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  color: #fff;
  font-size: 14px;
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
}

.artista-nav-btn:hover {
  background: rgba(255,255,255,0.25);
}

.artista-carousel {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding: 8px 0;
}

.artista-carousel::-webkit-scrollbar {
  display: none;
}

.artista-card {
  min-width: 150px;
  max-width: 180px;
  border-radius: 16px;
  overflow: hidden;
  background: rgba(255,255,255,0.1);
  scroll-snap-align: center;
  transition: var(--transition);
}

.artista-card:hover {
  transform: scale(1.03);
}

.artista-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 16px 16px 0 0;
}

.artista-card-name {
  display: block;
  text-align: center;
  padding: 10px 8px;
  color: rgba(255,255,255,0.9);
  font-size: 13px;
  font-weight: 600;
}

/* ============================================
   DCM SECTION
   ============================================ */
.dcm-section {
  padding: 40px 0;
  background: var(--bg-white);
}

.dcm-banner {
  width: 100%;
  overflow: hidden;
}

.dcm-banner img {
  width: 100%;
  height: auto;
}

.dcm-content {
  text-align: center;
  padding: 24px 20px;
}

.dcm-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.dcm-desc {
  font-size: 14px;
  color: var(--text-gray);
}

/* ============================================
   BROCHURES SECTION
   ============================================ */
.brochures-section {
  padding: 0 0 40px;
  background: var(--bg-white);
}

.brochures-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  background: var(--bg-light);
  border-radius: 16px;
  overflow: hidden;
}

.brochures-card img {
  width: 100%;
  height: auto;
}

.brochures-text {
  padding: 20px;
  text-align: center;
}

.brochures-text h2 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-dark);
}

.brochures-text p {
  font-size: 14px;
  color: var(--text-gray);
  margin-bottom: 16px;
}

.brochures-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #25D366;
  color: #fff;
  padding: 12px 24px;
  border-radius: 30px;
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition);
}

.brochures-btn:hover {
  background: #1DA851;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ============================================
   REVIEWS SECTION
   ============================================ */
.reviews-section {
  padding: 40px 0;
  background: var(--bg-cream);
}

.reviews-carousel {
  position: relative;
  min-height: 300px;
  margin-top: 24px;
}

.review-card {
  display: none;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 24px 16px;
  animation: fadeIn 0.5s ease;
}

.review-card.active {
  display: flex;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.review-photo {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: 12px;
  border: 3px solid var(--primary-blue);
}

.review-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.review-info h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-dark);
}

.review-role {
  font-size: 11px;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.review-quote {
  max-width: 500px;
}

.quote-icon {
  width: 30px;
  height: auto;
  margin: 0 auto 12px;
  opacity: 0.5;
}

.review-quote p {
  font-size: 14px;
  color: var(--text-gray);
  font-style: italic;
  line-height: 1.7;
}

.reviews-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
}

.review-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #ddd;
  cursor: pointer;
  transition: var(--transition);
}

.review-dot.active {
  background: var(--primary-blue);
}

/* ============================================
   PAINT CALCULATOR
   ============================================ */
.calculator-section {
  padding: 40px 0;
  background: var(--bg-white);
}

.calculator-card {
  background: var(--bg-light);
  border-radius: 16px;
  padding: 24px;
  max-width: 500px;
  margin: 0 auto;
}

.calc-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}

.calc-field label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-gray);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.calc-field input, .calc-field select {
  width: 100%;
  padding: 10px 14px;
  border: 2px solid var(--border-light);
  border-radius: 8px;
  font-size: 14px;
  font-family: var(--font-main);
  outline: none;
  transition: var(--transition);
  background: var(--bg-white);
}

.calc-field input:focus, .calc-field select:focus {
  border-color: var(--primary-blue);
}

.calc-btn {
  width: 100%;
  padding: 14px;
  background: var(--primary-blue);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-main);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.calc-btn:hover {
  background: #0d2840;
  transform: translateY(-2px);
}

.calc-result {
  margin-top: 20px;
  text-align: center;
  padding: 20px;
  background: var(--bg-white);
  border-radius: 12px;
  border: 2px solid var(--primary-blue);
}

.calc-result h3 {
  font-size: 14px;
  color: var(--text-gray);
  margin-bottom: 8px;
}

.calc-result-value {
  font-size: 36px;
  font-weight: 800;
  color: var(--primary-blue);
}

.calc-result-value span {
  font-size: 48px;
}

.calc-note {
  font-size: 11px;
  color: var(--text-light);
  margin-top: 8px;
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about-section {
  padding: 40px 0;
  background: var(--bg-light);
}

.about-content {
  margin-top: 24px;
}

.about-text p {
  font-size: 14px;
  color: var(--text-gray);
  line-height: 1.7;
  margin-bottom: 12px;
  text-align: center;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 20px;
}

.about-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px;
  background: var(--bg-white);
  border-radius: 10px;
  box-shadow: var(--shadow-sm);
}

.about-feature i {
  color: #25D366;
  font-size: 18px;
}

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

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact-section {
  padding: 40px 0;
  background: var(--bg-white);
}

.contact-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 24px;
}

.contact-card {
  text-align: center;
  padding: 24px 12px;
  background: var(--bg-light);
  border-radius: 16px;
  transition: var(--transition);
}

.contact-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.contact-card i {
  font-size: 28px;
  color: var(--primary-blue);
  margin-bottom: 12px;
}

.contact-card .fa-whatsapp {
  color: #25D366;
}

.contact-card h3 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.contact-card a, .contact-card p {
  display: block;
  font-size: 12px;
  color: var(--text-gray);
  margin-bottom: 4px;
}

.contact-card a:hover {
  color: var(--primary-blue);
}

/* ============================================
   FOOTER
   ============================================ */
.main-footer {
  background: var(--primary-blue);
  color: #fff;
  padding: 40px 0 0;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.footer-logo-section {
  text-align: center;
  margin-bottom: 30px;
}

.footer-logo {
  height: 70px;
  margin: 0 auto 8px;
  object-fit: contain;
  filter: brightness(0) invert(1);
}

.footer-tagline {
  font-size: 13px;
  opacity: 0.7;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 30px;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 12px;
  color: #fff;
}

.footer-col a, .footer-col p {
  display: block;
  font-size: 12px;
  color: rgba(255,255,255,0.6);
  padding: 4px 0;
  transition: var(--transition);
}

.footer-col a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-col i {
  margin-right: 6px;
}

.footer-social {
  display: flex;
  justify-content: center;
  gap: 14px;
  padding: 20px 0;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.footer-social a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  transition: var(--transition);
}

.footer-social a:hover {
  background: rgba(255,255,255,0.2);
  transform: translateY(-2px);
}

.footer-bottom {
  text-align: center;
  padding: 16px 20px;
  background: rgba(0,0,0,0.2);
  font-size: 12px;
  color: rgba(255,255,255,0.5);
}

/* ============================================
   WHATSAPP FLOATING BUTTON
   ============================================ */
.whatsapp-float {
  position: fixed;
  bottom: 20px;
  left: 20px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25D366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  box-shadow: 0 4px 12px rgba(37,211,102,0.4);
  z-index: 999;
  transition: var(--transition);
  animation: whatsappPulse 2s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(37,211,102,0.5);
}

@keyframes whatsappPulse {
  0% { box-shadow: 0 4px 12px rgba(37,211,102,0.4); }
  50% { box-shadow: 0 4px 20px rgba(37,211,102,0.6); }
  100% { box-shadow: 0 4px 12px rgba(37,211,102,0.4); }
}

/* ============================================
   RESPONSIVE - TABLET
   ============================================ */
@media (min-width: 768px) {
  .hero-slide {
    height: 400px;
  }

  .hero-title {
    font-size: 42px;
  }

  .hero-highlight {
    font-size: 52px;
  }

  .product-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .product-card img {
    max-height: 250px;
  }

  .section-title {
    font-size: 32px;
  }

  .artista-logo-text {
    font-size: 56px;
  }

  .artista-card {
    min-width: 200px;
    max-width: 220px;
  }

  .about-features {
    grid-template-columns: repeat(4, 1fr);
  }

  .logo-img {
    height: 70px;
  }
}

/* ============================================
   RESPONSIVE - DESKTOP
   ============================================ */
@media (min-width: 1024px) {
  .hero-slide {
    height: 500px;
  }

  .hero-title {
    font-size: 52px;
  }

  .product-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }

  .product-card {
    padding: 24px;
  }

  .product-card h3 {
    font-size: 15px;
  }

  .color-family-row {
    padding: 18px 40px;
  }

  .brochures-card {
    flex-direction: row;
  }

  .brochures-card img {
    width: 50%;
    height: auto;
  }

  .brochures-text {
    text-align: left;
    padding: 40px;
  }

  .contact-cards {
    gap: 24px;
  }

  .contact-card {
    padding: 32px 20px;
  }

  .footer-links {
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
  }
}

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Loading state */
.loading {
  position: relative;
  overflow: hidden;
}

.loading::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}