/* ============================================
   Himalaya Echoes - Main Stylesheet
   Professional, classical, beige & golden brown
   ============================================ */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;500;600;700&family=Lato:wght@300;400;700&display=swap');

/* CSS Variables */
:root {
  --cream: #f8f5f0;
  --beige-light: #f0ebe3;
  --beige-mid: #e8e0d5;
  --beige-dark: #d9cbb8;
  --golden: #a67c52;
  --golden-dark: #8b6239;
  --brown: #6b4423;
  --brown-dark: #4a3728;
  --text-dark: #2c2416;
  --text-light: #f8f5f0;
  --white: #ffffff;
  --shadow: rgba(74, 55, 40, 0.12);
  --shadow-strong: rgba(74, 55, 40, 0.2);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Lato', sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-dark);
  background-color: var(--cream);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Playfair Display', serif;
  font-weight: 600;
  line-height: 1.25;
  color: var(--brown-dark);
}

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

a:hover {
  color: var(--golden-dark);
}

img {
  max-width: 100%;
  display: block;
  border-radius: var(--radius);
}

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 80px 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-family: 'Lato', sans-serif;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background-color: var(--brown-dark);
  color: var(--text-light);
  box-shadow: 0 4px 14px var(--shadow);
}

.btn-primary:hover {
  background-color: var(--brown);
  color: var(--text-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--shadow-strong);
}

.btn-outline {
  background-color: transparent;
  color: var(--brown-dark);
  border: 2px solid var(--brown-dark);
}

.btn-outline:hover {
  background-color: var(--brown-dark);
  color: var(--text-light);
}

/* Split Button */
.split-btn {
  display: inline-flex;
  margin-top: auto;
  border-radius: 50px;
  overflow: hidden;
  background-color: var(--brown-dark);
  box-shadow: 0 4px 20px rgba(166, 124, 82, 0.35), 0 0 30px rgba(166, 124, 82, 0.15);
}

.split-btn a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  padding: 14px 28px;
  font-family: 'Lato', sans-serif;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  text-decoration: none;
  transition: var(--transition);
  white-space: nowrap;
}

.split-btn-left {
  position: relative;
  background-color: var(--brown-dark);
  color: var(--text-light);
  border-radius: 50px 0 0 50px;
}

.split-btn-left::after {
  content: '';
  position: absolute;
  right: 0;
  top: 18%;
  height: 64%;
  width: 1px;
  background-color: rgba(248, 245, 240, 0.3);
}

.split-btn-left:hover {
  background-color: var(--brown);
  color: var(--text-light);
}

.split-btn-right {
  background-color: var(--brown-dark);
  color: var(--text-light);
  border-radius: 0 50px 50px 0;
}

.split-btn-right:hover {
  background-color: var(--brown);
  color: var(--text-light);
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(248, 245, 240, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--beige-mid);
  transition: var(--transition);
}

.header-scrolled {
  box-shadow: 0 2px 20px var(--shadow);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo img {
  width: 56px;
  height: 56px;
  object-fit: contain;
  border-radius: 50%;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-text span:first-child {
  font-family: 'Playfair Display', serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--brown-dark);
  line-height: 1.1;
}

.logo-text span:last-child {
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--golden);
  text-transform: uppercase;
}

.nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav a {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--brown-dark);
  position: relative;
}

.nav a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--golden);
  transition: var(--transition);
}

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

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 22px;
  cursor: pointer;
  z-index: 1001;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--brown-dark);
  transition: var(--transition);
  transform-origin: center;
}

.hamburger.active span:nth-child(1) {
  transform: translateY(10px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-10px) rotate(-45deg);
}

/* Hero Section */
.hero {
  position: relative;
  width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('/image/main_banner.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: 1;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to bottom,
    rgba(248, 245, 240, 0.15) 0%,
    rgba(248, 245, 240, 0) 50%,
    rgba(248, 245, 240, 0.05) 100%
  );
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  text-align: center;
  max-width: 800px;
  padding: 0 24px;
}

.hero-subtitle {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--brown);
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(42px, 8vw, 72px);
  margin-bottom: 24px;
  color: var(--brown-dark);
}

.hero h1 span {
  color: var(--golden);
  font-style: italic;
}

.hero p {
  font-size: 18px;
  color: var(--brown);
  margin-bottom: 36px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

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

.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  animation: bounce 2s infinite;
}

.scroll-indicator svg {
  width: 32px;
  height: 32px;
  stroke: var(--brown-dark);
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-10px); }
  60% { transform: translateX(-50%) translateY(-5px); }
}

/* Section Titles */
.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title h2 {
  font-size: clamp(32px, 5vw, 44px);
  margin-bottom: 16px;
}

.section-title p {
  font-size: 16px;
  color: var(--brown);
  max-width: 600px;
  margin: 0 auto;
}

.section-title .divider {
  width: 80px;
  height: 2px;
  background: linear-gradient(to right, transparent, var(--golden), transparent);
  margin: 20px auto 0;
}

/* Products Section */
.products {
  background-color: var(--beige-light);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 40px;
}

.product-card {
  background-color: var(--cream);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 8px 30px var(--shadow);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 48px var(--shadow-strong);
}

.product-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
  transition: var(--transition);
}

.product-card:hover .product-image img {
  transform: scale(1.06);
}

.product-image .view-more {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(74, 55, 40, 0.4);
  opacity: 0;
  transition: var(--transition);
}

.product-card:hover .product-image .view-more {
  opacity: 1;
}

.product-image .view-more span {
  color: var(--text-light);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 10px 24px;
  border: 2px solid var(--text-light);
  border-radius: 50px;
}

.product-content {
  padding: 32px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-content h3 {
  font-size: 28px;
  margin-bottom: 16px;
}

.product-content .description {
  color: var(--brown);
  margin-bottom: 24px;
  text-align: justify;
}

.product-points {
  margin-bottom: 28px;
}

.product-points li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 12px;
  font-size: 15px;
  color: var(--text-dark);
}

.product-points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 10px;
  height: 10px;
  background-color: var(--golden);
  border-radius: 50%;
}

.product-content .btn {
  margin-top: auto;
  align-self: flex-start;
}

/* Gallery Carousel */
.gallery {
  background-color: var(--cream);
}

.carousel-wrapper {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
}

.carousel {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding: 20px 10px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

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

.carousel-item {
  flex: 0 0 auto;
  width: 300px;
  scroll-snap-align: center;
  cursor: pointer;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 6px 20px var(--shadow);
  transition: var(--transition);
}

.carousel-item:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px var(--shadow-strong);
}

.carousel-item img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 0;
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--cream);
  border: 1px solid var(--beige-mid);
  color: var(--brown-dark);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px var(--shadow);
  transition: var(--transition);
  z-index: 10;
}

.carousel-btn:hover {
  background-color: var(--golden);
  color: var(--text-light);
}

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

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

.carousel-btn svg {
  width: 24px;
  height: 24px;
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 24px;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--beige-mid);
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.carousel-dot.active {
  background-color: var(--golden);
  width: 28px;
  border-radius: 5px;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background-color: rgba(44, 36, 22, 0.95);
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.modal.active {
  display: flex;
  opacity: 1;
}

.modal-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
}

.modal-content img {
  max-width: 100%;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.modal-close {
  position: absolute;
  top: -40px;
  right: 0;
  width: 36px;
  height: 36px;
  background: transparent;
  border: none;
  color: var(--text-light);
  font-size: 32px;
  line-height: 1;
  cursor: pointer;
  transition: var(--transition);
}

.modal-close:hover {
  color: var(--golden);
  transform: rotate(90deg);
}

/* Product Detail Pages */
.product-hero {
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 140px 0 80px;
  background-color: var(--beige-light);
  overflow: hidden;
}

.product-hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0.25;
}

.product-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(248, 245, 240, var(--hero-overlay-opacity)) 0%,
    rgba(248, 245, 240, var(--hero-overlay-opacity)) 100%
  );
}

.product-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  padding: 0 24px;
}

.product-hero-content h1 {
  font-size: clamp(36px, 6vw, 56px);
  margin-bottom: 20px;
}

.product-hero-content p {
  font-size: 18px;
  color: var(--brown);
}

.product-detail {
  background-color: var(--cream);
}

.detail-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 80px;
}

.detail-intro.reverse {
  direction: rtl;
}

.detail-intro.reverse > * {
  direction: ltr;
}

.detail-intro .image-stack {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.detail-intro .image-stack img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  box-shadow: 0 8px 24px var(--shadow);
}

.detail-intro .image-stack img:first-child {
  grid-column: span 2;
  height: 300px;
}

.detail-intro .text h2 {
  font-size: 32px;
  margin-bottom: 24px;
}

.detail-intro .text p {
  color: var(--brown);
  margin-bottom: 20px;
  text-align: justify;
}

.detail-points {
  background-color: var(--beige-light);
  padding: 60px;
  border-radius: var(--radius);
  margin-bottom: 60px;
}

.detail-points h3 {
  text-align: center;
  font-size: 28px;
  margin-bottom: 40px;
}

.detail-points-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.detail-point {
  background-color: var(--cream);
  padding: 28px;
  border-radius: var(--radius-sm);
  box-shadow: 0 4px 16px var(--shadow);
  transition: var(--transition);
}

.detail-point:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px var(--shadow-strong);
}

.detail-point .number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: var(--golden);
  color: var(--text-light);
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: 14px;
}

.detail-point h4 {
  font-size: 18px;
  margin-bottom: 10px;
}

.detail-point p {
  font-size: 14px;
  color: var(--brown);
  line-height: 1.6;
}

.detail-gallery {
  margin-bottom: 60px;
}

.detail-gallery h3 {
  text-align: center;
  font-size: 28px;
  margin-bottom: 40px;
}

.detail-gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.detail-gallery-grid img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  cursor: pointer;
  box-shadow: 0 6px 18px var(--shadow);
  transition: var(--transition);
}

.detail-gallery-grid img:hover {
  transform: scale(1.03);
  box-shadow: 0 10px 28px var(--shadow-strong);
}

.cta-section {
  text-align: center;
  padding: 60px;
  background: linear-gradient(135deg, var(--beige-mid) 0%, var(--beige-light) 100%);
  border-radius: var(--radius);
}

.cta-section h3 {
  font-size: 28px;
  margin-bottom: 16px;
}

.cta-section p {
  color: var(--brown);
  margin-bottom: 28px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* About Page */
.about-hero {
  position: relative;
  min-height: 55vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 140px 0 80px;
  background-color: var(--beige-light);
  overflow: hidden;
}

.about-hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0.2;
}

.about-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(248, 245, 240, var(--hero-overlay-opacity)) 0%,
    rgba(248, 245, 240, var(--hero-overlay-opacity)) 100%
  );
}

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

.about-hero-content h1 {
  font-size: clamp(40px, 6vw, 64px);
  margin-bottom: 16px;
}

.about-section {
  background-color: var(--cream);
  padding: 80px 0;
}

.about-grid {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 60px;
  align-items: start;
}

.about-image {
  position: relative;
}

.about-image img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 50%;
  box-shadow: 0 12px 40px var(--shadow-strong);
  border: 8px solid var(--beige-mid);
}

.about-text {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-text .lead {
  font-family: 'Playfair Display', serif;
  font-size: 22px;
  color: var(--brown);
  line-height: 1.6;
}

.about-text p {
  color: var(--text-dark);
  font-size: 16px;
}

.about-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 24px;
}

.offerings {
  background-color: var(--beige-light);
  padding: 80px 0;
}

.offerings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.offering-card {
  background-color: var(--cream);
  padding: 40px 32px;
  border-radius: var(--radius);
  text-align: center;
  box-shadow: 0 6px 24px var(--shadow);
  transition: var(--transition);
}

.offering-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 14px 40px var(--shadow-strong);
}

.offering-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--beige-mid);
  border-radius: 50%;
  color: var(--golden);
}

.offering-icon svg {
  width: 30px;
  height: 30px;
}

.offering-card h3 {
  font-size: 22px;
  margin-bottom: 14px;
}

.offering-card p {
  color: var(--brown);
  font-size: 15px;
  line-height: 1.7;
}

@media (max-width: 992px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-image {
    max-width: 320px;
    margin: 0 auto;
  }

  .about-text .lead {
    font-size: 20px;
  }
}

/* Footer */
.footer {
  background-color: var(--brown-dark);
  color: var(--beige-mid);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand img {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  margin-bottom: 16px;
}

.footer-brand h4 {
  color: var(--text-light);
  font-size: 22px;
  margin-bottom: 10px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--beige-mid);
}

.footer-links h4 {
  color: var(--golden);
  font-size: 16px;
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-links a {
  display: block;
  color: var(--beige-mid);
  margin-bottom: 12px;
  font-size: 14px;
}

.footer-links a:hover {
  color: var(--golden);
  padding-left: 6px;
}

.footer-contact p {
  font-size: 14px;
  margin-bottom: 12px;
}

.footer-contact strong {
  color: var(--text-light);
}

.footer-bottom {
  border-top: 1px solid rgba(232, 224, 213, 0.2);
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
  color: var(--beige-dark);
}

/* Responsive */
@media (max-width: 992px) {
  .detail-intro {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .detail-intro.reverse {
    direction: ltr;
  }

  .carousel-item {
    width: 260px;
  }

  .carousel-btn.prev {
    left: 10px;
  }

  .carousel-btn.next {
    right: 10px;
  }
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav {
    position: fixed;
    top: 80px;
    right: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background-color: var(--cream);
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding-top: 60px;
    gap: 32px;
    transition: var(--transition);
    box-shadow: -4px 0 20px var(--shadow);
  }

  .nav.active {
    right: 0;
  }

  .nav a {
    font-size: 18px;
  }

  .hero {
    min-height: 90vh;
    padding: 100px 0 60px;
  }

  .hero h1 {
    font-size: 36px;
  }

  section {
    padding: 60px 0;
  }

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

  .detail-points {
    padding: 36px 24px;
  }

  .cta-section {
    padding: 40px 24px;
  }

  .carousel-item {
    width: 85vw;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .logo-text span:first-child {
    font-size: 18px;
  }

  .logo-text span:last-child {
    font-size: 10px;
  }

  .product-content {
    padding: 24px;
  }

  .btn {
    padding: 12px 24px;
    font-size: 13px;
  }
}