:root {
  --primary-orange: #ff6600;
  --secondary-orange: #e65100;
  --light-orange: #fff3e0;
  --white: #ffffff;
  --black: #1a1a1a;
  --gray-100: #f8f9fa;
  --gray-200: #e9ecef;
  --gray-300: #dee2e6;
  --gray-700: #495057;
  --gray-800: #343a40;
  --shadow-soft: 0 4px 12px rgba(0,0,0,0.05);
  --shadow-premium: 0 10px 30px rgba(255, 102, 0, 0.15);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Outfit', sans-serif;
  background-color: var(--white);
  color: var(--black);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--gray-200);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 2rem;
}

.logo {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--black);
  text-decoration: none;
  letter-spacing: -0.5px;
  display: flex;
  gap: 0.5rem;
  align-items: center;
  white-space: nowrap;
}

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

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

.nav-links a {
  text-decoration: none;
  color: var(--gray-700);
  font-weight: 600;
  transition: var(--transition);
}

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

/* Hero Carousel */
.hero-banner {
  position: relative;
  height: 650px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--white);
  margin-bottom: 5rem;
}

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

.slide {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0;
  animation: heroSlider 15s infinite;
}

.slide1 { background-image: url('/images/product-1.jpg'); animation-delay: 0s; }
.slide2 { background-image: url('/images/product-2.jpg'); animation-delay: 5s; }
.slide3 { background-image: url('/images/product-3.jpg'); animation-delay: 10s; }

@keyframes heroSlider {
  0% { opacity: 0; transform: scale(1.1); }
  5% { opacity: 1; }
  33% { opacity: 1; }
  38% { opacity: 0; transform: scale(1.02); }
  100% { opacity: 0; }
}

.hero-overlay {
  position: relative;
  z-index: 2;
  background: rgba(0, 0, 0, 0.45);
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 0 2rem;
}

.hero-overlay h1 {
  font-size: 4.5rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  text-shadow: 2px 2px 20px rgba(0,0,0,0.5);
}

.hero-overlay p {
  font-size: 1.5rem;
  margin-bottom: 2.5rem;
  max-width: 800px;
  text-shadow: 1px 1px 10px rgba(0,0,0,0.3);
}

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

/* Premium Buttons */
.btn-primary {
  display: inline-block;
  padding: 1.25rem 3rem;
  background: var(--primary-orange);
  color: var(--white);
  text-decoration: none;
  font-weight: 800;
  border-radius: 50px;
  box-shadow: 0 4px 15px rgba(255, 102, 0, 0.3);
  transition: var(--transition);
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
}

.btn-primary:hover {
  background: var(--secondary-orange);
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(255, 102, 0, 0.4);
}

.btn-outline {
  display: inline-block;
  padding: 1.25rem 3rem;
  border: 2px solid var(--white);
  color: var(--white);
  text-decoration: none;
  font-weight: 800;
  border-radius: 50px;
  transition: var(--transition);
  background: transparent;
  cursor: pointer;
  font-size: 1.1rem;
}

.btn-outline:hover {
  background: var(--white);
  color: var(--primary-orange);
  transform: translateY(-5px);
}

/* Body Area - Product Grid */
.section-title {
  text-align: center;
  margin-bottom: 4rem;
}

.section-title h2 {
  font-size: 3rem;
  font-weight: 800;
  color: var(--black);
  margin-bottom: 1rem;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 3rem;
  max-width: 1200px;
  margin: 0 auto 6rem;
  padding: 0 2rem;
}

.product-card {
  background: var(--white);
  border-radius: 25px;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
  border: 1px solid var(--gray-200);
}

.product-card:hover {
  transform: translateY(-12px);
  box-shadow: var(--shadow-premium);
}

.product-image {
  height: 280px;
  overflow: hidden;
}

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

.product-card:hover .product-image img {
  transform: scale(1.1);
}

.product-info {
  padding: 2rem;
}

.product-info h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--black);
}

.product-price {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--primary-orange);
  margin-bottom: 1.5rem;
}

/* Footer Section */
.footer {
  background: #2c2c2c;
  color: var(--white);
  padding: 6rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 4rem;
  margin-bottom: 5rem;
}

.footer-brand .logo {
  color: var(--white);
  margin-bottom: 1.5rem;
  display: inline-block;
  padding: 0;
}

.footer p {
  color: var(--gray-300);
  font-size: 1rem;
  margin-bottom: 1.5rem;
}

.footer h4 {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 1rem;
}

.footer-links a {
  color: var(--gray-300);
  text-decoration: none;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--primary-orange);
  padding-left: 5px;
}

.payment-icons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.pay-badge {
  padding: 0.6rem 1.2rem;
  background: rgba(255,255,255,0.1);
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.9rem;
}

.bkash { color: #d12053; border: 1px solid #d12053; }
.nagad { color: #f7941d; border: 1px solid #f7941d; }
.bank { color: #007bff; border: 1px solid #007bff; }

.app-btns {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.app-btn-img img {
  height: 45px;
  border-radius: 8px;
  transition: var(--transition);
}

.app-btn-img:hover img {
  transform: translateY(-5px);
}

.footer-bottom {
  text-align: center;
  padding-top: 3rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  color: var(--gray-300);
}

/* WhatsApp Floating */
.whatsapp-float {
  position: fixed;
  width: 65px;
  height: 65px;
  bottom: 40px;
  right: 40px;
  background-color: #25d366;
  color: #FFF;
  border-radius: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 5px 20px rgba(0,0,0,0.3);
  z-index: 1000;
  animation: pulse-green 2s infinite;
  transition: var(--transition);
}

.whatsapp-float:hover {
  transform: scale(1.15) rotate(10deg);
}

@keyframes pulse-green {
  0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7); }
  70% { box-shadow: 0 0 0 15px rgba(37, 211, 102, 0); }
  100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

/* Product Landing Page - High Fidelity */
.product-landing {
  background: var(--white);
}

.premium-hero {
  background: var(--light-orange);
  padding: 6rem 0;
  border-bottom: 5px solid var(--primary-orange);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.product-title {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  color: var(--black);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--gray-700);
  margin-bottom: 2rem;
}

.hero-price {
  margin-bottom: 2.5rem;
}

.price-old {
  font-size: 1.5rem;
  color: var(--gray-300);
  text-decoration: line-through;
  margin-right: 1.5rem;
}

.price-new {
  font-size: 3rem;
  font-weight: 900;
  color: var(--primary-orange);
}

.hero-actions {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.btn-order-now {
  padding: 1.5rem 3.5rem;
  background: var(--primary-orange);
  color: var(--white);
  text-decoration: none;
  font-size: 1.5rem;
  font-weight: 900;
  border-radius: 50px;
  box-shadow: 0 10px 25px rgba(255, 102, 0, 0.4);
  transition: var(--transition);
  display: inline-block;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(1); box-shadow: 0 10px 25px rgba(255, 102, 0, 0.4); }
  50% { transform: scale(1.05); box-shadow: 0 15px 35px rgba(255, 102, 0, 0.6); }
  100% { transform: scale(1); box-shadow: 0 10px 25px rgba(255, 102, 0, 0.4); }
}

.btn-call {
  padding: 1.25rem 2.5rem;
  border: 3px solid var(--primary-orange);
  color: var(--primary-orange);
  text-decoration: none;
  font-size: 1.25rem;
  font-weight: 800;
  border-radius: 50px;
}

.video-wrapper {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: 30px;
  overflow: hidden;
}

.details-section {
  padding: 6rem 0;
  background: var(--gray-100);
}

.details-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.card-glass {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  padding: 3.5rem;
  border-radius: 35px;
  border: 1px solid var(--gray-200);
}

.detail-text h2 {
  font-size: 2.5rem;
  margin-bottom: 2rem;
}

.detail-text ul {
  list-style: none;
}

.detail-text li {
  margin-bottom: 1.25rem;
  padding-left: 2.5rem;
  position: relative;
  font-size: 1.1rem;
  font-weight: 500;
}

.detail-text li:before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary-orange);
  font-weight: 900;
}

.detail-image img {
  width: 100%;
  border-radius: 35px;
}

.order-section {
  padding: 7rem 0;
}

.container-small {
  max-width: 800px;
  margin: 0 auto;
}

.order-card {
  background: var(--white);
  border-radius: 40px;
  border: 5px solid var(--primary-orange);
  overflow: hidden;
}

.order-header {
  background: var(--primary-orange);
  color: var(--white);
  padding: 2.5rem;
  text-align: center;
}

.sticky-footer {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  background: var(--white);
  padding: 1.25rem 2rem;
  box-shadow: 0 -10px 30px rgba(0,0,0,0.1);
  z-index: 999;
  display: none;
}

.sticky-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.sticky-price {
  font-size: 2.25rem;
  font-weight: 900;
  color: var(--primary-orange);
}

.btn-sticky-order {
  padding: 1rem 3rem;
  background: var(--primary-orange);
  color: var(--white);
  text-decoration: none;
  font-weight: 900;
  border-radius: 50px;
  font-size: 1.5rem;
}

@media (max-width: 992px) {
  .hero-grid, .details-grid { grid-template-columns: 1fr; gap: 3rem; text-align: center; }
  .hero-actions { justify-content: center; }
  .product-title { font-size: 2.5rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .logo { font-size: 1.4rem; }
  .hero-banner { height: 500px; }
  .hero-overlay h1 { font-size: 2.5rem; }
  .premium-hero { padding: 4rem 1rem; }
  .product-title { font-size: 2.2rem; }
  .sticky-footer { display: flex; }
  .btn-order-now { padding: 1.25rem 2rem; font-size: 1.25rem; width: 100%; }
  .hero-actions { flex-direction: column; width: 100%; }
  .btn-call { width: 100%; }
  .checkout-form-main { padding: 1.5rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .whatsapp-float { bottom: 85px; width: 55px; height: 55px; right: 20px; }
  .hero-media { width: 100% !important; margin-top: 1rem; }
  .video-wrapper { width: 100% !important; }
}

/* Checkout Form Styling */
.checkout-form-main {
  padding: 3rem;
  background: var(--white);
  display: block;
  width: 100%;
}

.form-group {
  margin-bottom: 2.5rem;
  text-align: left;
  display: block;
  width: 100%;
  clear: both;
}

.form-group label {
  display: block;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--gray-800);
  width: 100%;
}

.form-group input, 
.form-group textarea, 
.form-group select {
  width: 100%;
  display: block;
  padding: 1.25rem;
  border: 2px solid var(--gray-200);
  border-radius: 15px;
  font-family: inherit;
  font-size: 1.1rem;
  transition: var(--transition);
  background: var(--white);
}

.form-group input:focus, 
.form-group textarea:focus, 
.form-group select:focus {
  outline: none;
  border-color: var(--primary-orange);
  box-shadow: 0 0 0 4px rgba(255, 102, 0, 0.1);
}

.btn-submit-order {
  width: 100%;
  padding: 1.5rem;
  background: var(--primary-orange);
  color: var(--white);
  border: none;
  border-radius: 50px;
  font-size: 1.5rem;
  font-weight: 900;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 1rem;
  display: block;
}

.btn-submit-order:hover {
  background: var(--secondary-orange);
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(255, 102, 0, 0.3);
}

.trust-badges {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--gray-200);
  color: var(--gray-700);
  font-weight: 600;
}