/* ==========================================================================
   SALA GARDEN PREMIUM DESIGN SYSTEM
   Theme: Warm Earthy Brown & Elegant White
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700&family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;1,400&subset=vietnamese&display=swap');

:root {
  /* Color Palette */
  --earth-dark: #3e2723;       /* Deep chocolate brown */
  --earth-medium: #5d4037;     /* Classic warm earthy brown */
  --earth-light: #8d6e63;      /* Muted brown/tan */
  --earth-beige: #c5a880;      /* Luxury bronze/gold beige */
  --earth-cream: #FAF6F0;      /* Warm premium off-white background */
  --white: #ffffff;            /* Pure white */
  --text-dark: #2d231e;        /* Dark brown-black for high contrast readability */
  --text-muted: #79665a;       /* Soft warm grey-brown for secondary text */
  --accent-gold: #c9a84c;      /* Subtle golden accent */
  
  /* Glassmorphism Styles */
  --glass-bg: rgba(250, 246, 240, 0.82);
  --glass-bg-dark: rgba(62, 39, 35, 0.05);
  --glass-border: rgba(93, 64, 55, 0.12);
  --glass-shadow: 0 8px 32px 0 rgba(93, 64, 55, 0.08);

  /* Fonts */
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'Montserrat', system-ui, -apple-system, sans-serif;
  
  /* Transitions */
  --transition-smooth: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.25s ease;
}

/* ==========================================================================
   BASE & RESET STYLES
   ========================================================================== */

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

body {
  font-family: var(--font-sans);
  background-color: var(--earth-cream);
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  color: var(--earth-dark);
  font-weight: 600;
  line-height: 1.3;
}

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

button, input, textarea, select {
  font-family: inherit;
}

/* Scrollbar customization */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--earth-cream);
}
::-webkit-scrollbar-thumb {
  background: var(--earth-beige);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--earth-light);
}

/* ==========================================================================
   LAYOUT UTILITIES
   ========================================================================== */

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 0;
}

.section-title-wrapper {
  text-align: center;
  margin-bottom: 60px;
}

.section-subtitle {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 4px;
  color: var(--earth-beige);
  font-weight: 600;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--earth-dark);
  position: relative;
  display: inline-block;
  padding-bottom: 15px;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 2px;
  background-color: var(--earth-beige);
}

/* ==========================================================================
   HEADER & NAVIGATION BAR
   ========================================================================== */

header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  transition: var(--transition-smooth);
}

header.scrolled {
  padding: 10px 0;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 4px 20px rgba(62, 39, 35, 0.08);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 15px 0;
  transition: var(--transition-smooth);
}

.logo-wrapper {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-img {
  height: 52px;
  width: auto;
  object-fit: contain;
  transition: var(--transition-smooth);
  filter: drop-shadow(0 2px 4px rgba(62, 39, 35, 0.1));
}

header.scrolled .logo-img {
  height: 44px;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 30px;
  align-items: center;
}

.nav-link {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-dark);
  position: relative;
  padding: 5px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--earth-beige);
  transition: var(--transition-fast);
}

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

.nav-link:hover {
  color: var(--earth-medium);
}

.btn-cta {
  background: linear-gradient(135deg, var(--earth-dark), var(--earth-medium));
  color: var(--white);
  padding: 12px 24px;
  border-radius: 30px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  box-shadow: 0 4px 15px rgba(62, 39, 35, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(62, 39, 35, 0.25);
  background: linear-gradient(135deg, var(--earth-medium), var(--earth-light));
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  z-index: 1001;
}

.menu-toggle span {
  width: 25px;
  height: 2px;
  background-color: var(--earth-dark);
  transition: var(--transition-fast);
}

/* ==========================================================================
   HERO SECTION (HOME)
   ========================================================================== */

#trang-chu {
  height: 100vh;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  text-align: center;
}

.hero-video-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

.hero-img-fallback {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  display: none;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, rgba(62, 39, 35, 0.2) 0%, rgba(26, 17, 16, 0.75) 80%);
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  width: 90%;
  max-width: 900px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  transform: translateY(30px);
  opacity: 0;
  animation: fadeUpHero 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards 0.3s;
}

@keyframes fadeUpHero {
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

h1 {
  font-family: var(--font-serif);
  color: var(--earth-dark);
  font-weight: 600;
  line-height: 1.3;
}

.hero-content h1 {
  margin-bottom: 25px;
  line-height: 1.25;
}

#dyn-hero-subtitle {
  display: block;
  font-size: clamp(1.1rem, 2.8vw, 2.2rem);
  font-family: var(--font-sans);
  font-weight: 600;
  letter-spacing: 6px;
  text-transform: uppercase;
  color: var(--earth-beige);
  margin-bottom: 10px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.85);
}

#dyn-hero-title {
  display: block;
  font-size: clamp(2.8rem, 8.5vw, 5.8rem);
  font-family: var(--font-serif);
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--white);
  text-shadow: 0 4px 25px rgba(0, 0, 0, 0.9);
}

.hero-tagline {
  font-size: clamp(1rem, 2vw, 1.3rem);
  color: #f3ece4;
  margin-bottom: 40px;
  max-width: 700px;
  font-weight: 300;
  letter-spacing: 1px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.hero-btns {
  display: flex;
  gap: 20px;
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.4);
  padding: 12px 28px;
  border-radius: 30px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  transition: var(--transition-fast);
  backdrop-filter: blur(4px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--white);
  transform: translateY(-2px);
}

.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  opacity: 0.7;
  animation: pulseIndicator 2s infinite ease-in-out;
}

@keyframes pulseIndicator {
  0%, 100% { transform: translate(-50%, 0); opacity: 0.5; }
  50% { transform: translate(-50%, 10px); opacity: 1; }
}

.scroll-indicator span {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 3px;
  font-weight: 500;
  color: #f3ece4;
}

.scroll-icon {
  width: 20px;
  height: 32px;
  border: 2px solid #f3ece4;
  border-radius: 10px;
  position: relative;
}

.scroll-icon::after {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 8px;
  background-color: #f3ece4;
  border-radius: 2px;
  animation: scrollBall 1.5s infinite ease-in-out;
}

@keyframes scrollBall {
  0% { top: 6px; opacity: 1; }
  100% { top: 18px; opacity: 0; }
}

/* ==========================================================================
   GIOI THIEU SECTION (ABOUT)
   ========================================================================== */

#gioi-thieu {
  background-color: var(--white);
  position: relative;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}

.about-text h3 {
  font-size: 1.8rem;
  margin-bottom: 20px;
  color: var(--earth-dark);
}

.about-text p {
  color: var(--text-muted);
  margin-bottom: 24px;
  font-size: 1.05rem;
  line-height: 1.8;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 40px;
}

.feature-box {
  padding: 24px;
  background: var(--earth-cream);
  border-radius: 16px;
  border: 1px solid rgba(93, 64, 55, 0.05);
  transition: var(--transition-smooth);
}

.feature-box:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(93, 64, 55, 0.06);
  border-color: rgba(93, 64, 55, 0.1);
}

.feature-icon {
  font-size: 2rem;
  color: var(--earth-beige);
  margin-bottom: 12px;
}

.feature-box h4 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  font-weight: 600;
}

.feature-box p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 0;
  line-height: 1.5;
}

.about-visual {
  position: relative;
  height: 500px;
}

.visual-card-wrapper {
  position: relative;
  width: 100%;
  height: 100%;
  perspective: 1000px;
}

.visual-card {
  width: 100%;
  height: 100%;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 20px 45px rgba(62, 39, 35, 0.12);
  border: 1px solid rgba(197, 168, 128, 0.3);
  transform-style: preserve-3d;
  transition: transform 0.5s ease-out;
}

.visual-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.05);
}

.visual-badge {
  position: absolute;
  bottom: 30px;
  left: -20px;
  background: var(--earth-dark);
  color: var(--white);
  padding: 20px 30px;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  z-index: 10;
  border: 1px solid rgba(255, 255, 255, 0.1);
  transform: translateZ(30px);
}

.visual-badge h5 {
  font-size: 1.6rem;
  color: var(--earth-beige);
  line-height: 1;
}

.visual-badge p {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-top: 5px;
  font-weight: 500;
  color: #d7ccc8;
}

/* ==========================================================================
   SAN PHAM SECTION (PRODUCTS)
   ========================================================================== */

#san-pham {
  background-color: var(--earth-cream);
  position: relative;
}

.product-tabs-wrapper {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 50px;
}

.tab-btn {
  background: var(--white);
  border: 1px solid var(--glass-border);
  color: var(--text-dark);
  padding: 12px 30px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  letter-spacing: 1px;
  box-shadow: var(--glass-shadow);
  transition: var(--transition-fast);
}

.tab-btn.active,
.tab-btn:hover {
  background: var(--earth-dark);
  color: var(--white);
  border-color: var(--earth-dark);
  transform: translateY(-2px);
}

.product-deck {
  display: none;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 40px;
}

.product-deck.active {
  display: grid;
  animation: fadeIn 0.8s ease-in-out forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

.product-card {
  background: var(--white);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(62, 39, 35, 0.04);
  border: 1px solid var(--glass-border);
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(93, 64, 55, 0.1);
  border-color: var(--earth-beige);
}

.product-img-wrapper {
  position: relative;
  height: 250px;
  overflow: hidden;
  perspective: 1000px;
}

.product-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.product-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  background: rgba(250, 246, 240, 0.9);
  backdrop-filter: blur(4px);
  border: 1px solid var(--earth-beige);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--earth-dark);
}

.product-info {
  padding: 30px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-info h3 {
  font-size: 1.4rem;
  margin-bottom: 12px;
}

.product-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  flex-grow: 1;
}

.product-specs {
  border-top: 1px solid rgba(93, 64, 55, 0.08);
  padding-top: 20px;
  margin-bottom: 24px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}

.spec-item {
  display: flex;
  flex-direction: column;
}

.spec-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.spec-val {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--earth-dark);
  margin-top: 2px;
}

/* ==========================================================================
   TIEN ICH SECTION (AMENITIES)
   ========================================================================== */

#tien-ich {
  background-color: var(--white);
  position: relative;
  overflow: hidden;
}

.amenities-wrapper {
  position: relative;
  border-radius: 32px;
  overflow: hidden;
  box-shadow: 0 30px 70px rgba(62, 39, 35, 0.15);
  border: 1px solid rgba(197, 168, 128, 0.2);
  height: 600px;
  width: 100%;
}

.amenities-bg-slider {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.amenities-bg-item {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transform: scale(1.05);
  transition: opacity 1s ease, transform 8s ease-out;
}

.amenities-bg-item.active {
  opacity: 0.35;
  transform: scale(1);
}

.amenities-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(62, 39, 35, 0.95) 0%, rgba(250, 246, 240, 0.3) 100%);
  z-index: 2;
}

.amenities-grid {
  position: relative;
  z-index: 3;
  width: 100%;
  height: 100%;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(2, 1fr);
  padding: 40px;
  gap: 30px;
}

.amenity-card {
  background: rgba(46, 30, 26, 0.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(197, 168, 128, 0.25);
  border-radius: 20px;
  padding: 35px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.amenity-card:hover {
  background: rgba(250, 246, 240, 0.95);
  border-color: var(--earth-beige);
  transform: scale(1.02);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.amenity-card h3 {
  font-size: 1.5rem;
  color: var(--white);
  margin-bottom: 10px;
  transition: var(--transition-fast);
}

.amenity-card p {
  color: #faf6f0;
  font-size: 0.95rem;
  line-height: 1.6;
  font-weight: 400;
  transition: var(--transition-fast);
}

.amenity-card:hover h3 {
  color: var(--earth-dark);
}

.amenity-card:hover p {
  color: var(--text-dark);
}

/* ==========================================================================
   TIN TUC SECTION (NEWS)
   ========================================================================== */

#tin-tuc {
  background-color: var(--earth-cream);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 35px;
}

.news-card {
  background: var(--white);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(62, 39, 35, 0.03);
  border: 1px solid var(--glass-border);
  transition: var(--transition-smooth);
}

.news-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 35px rgba(62, 39, 35, 0.08);
  border-color: var(--earth-beige);
}

.news-img {
  height: 220px;
  overflow: hidden;
  position: relative;
}

.news-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 6s ease;
}

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

.news-content {
  padding: 25px;
}

.news-meta {
  display: flex;
  gap: 15px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.news-date {
  color: var(--earth-beige);
  font-weight: 600;
}

.news-content h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
  line-height: 1.4;
}

.news-content p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   DANG KY THAM QUAN (VISIT REGISTRATION)
   ========================================================================== */

#dang-ky {
  background-color: var(--white);
  position: relative;
}

.dang-ky-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
  align-items: center;
}

.dang-ky-info h3 {
  font-size: 2rem;
  margin-bottom: 20px;
}

.dang-ky-info p {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 35px;
  line-height: 1.8;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.contact-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.contact-icon {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--earth-cream);
  border: 1px solid var(--earth-beige);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--earth-dark);
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-details h4 {
  font-size: 1rem;
  margin-bottom: 4px;
}

.contact-details p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 0;
  line-height: 1.5;
}

.booking-box {
  background: var(--earth-cream);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: 24px;
  padding: 40px;
}

.booking-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--earth-dark);
  margin-bottom: 8px;
  display: block;
}

.form-control {
  width: 100%;
  padding: 14px 20px;
  background: var(--white);
  border: 1px solid rgba(93, 64, 55, 0.15);
  border-radius: 12px;
  color: var(--text-dark);
  font-size: 0.95rem;
  transition: var(--transition-fast);
  outline: none;
}

.form-control:focus {
  border-color: var(--earth-beige);
  box-shadow: 0 0 10px rgba(197, 168, 128, 0.2);
}

.btn-submit {
  background: linear-gradient(135deg, var(--earth-dark), var(--earth-medium));
  color: var(--white);
  border: none;
  padding: 16px;
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(62, 39, 35, 0.15);
  transition: var(--transition-fast);
  margin-top: 10px;
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(62, 39, 35, 0.25);
  background: linear-gradient(135deg, var(--earth-medium), var(--earth-light));
}

/* ==========================================================================
   MODAL STYLES (SUCCESS REGISTRATION)
   ========================================================================== */

.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(62, 39, 35, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.modal-backdrop.show {
  opacity: 1;
  pointer-events: auto;
}

.success-modal {
  background: var(--white);
  border-radius: 24px;
  width: 90%;
  max-width: 500px;
  padding: 40px;
  box-shadow: 0 20px 50px rgba(62, 39, 35, 0.25);
  border: 1px solid var(--earth-beige);
  text-align: center;
  transform: scale(0.9);
  opacity: 0;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.4s ease;
}

.modal-backdrop.show .success-modal {
  transform: scale(1);
  opacity: 1;
}

.success-icon {
  width: 64px;
  height: 64px;
  background: #e8f5e9;
  color: #2e7d32;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 20px;
}

.success-modal h3 {
  font-size: 1.6rem;
  margin-bottom: 12px;
}

.success-modal p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 24px;
}

.booking-code {
  background: var(--earth-cream);
  border: 1px dashed var(--earth-beige);
  padding: 15px;
  border-radius: 12px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--earth-dark);
  letter-spacing: 2px;
  margin-bottom: 25px;
}

.btn-close-modal {
  background: var(--earth-dark);
  color: var(--white);
  border: none;
  padding: 12px 30px;
  border-radius: 30px;
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-close-modal:hover {
  background: var(--earth-medium);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

footer {
  background-color: var(--earth-dark);
  color: #d7ccc8;
  padding: 80px 0 30px;
  border-top: 3px solid var(--earth-beige);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 50px;
  margin-bottom: 60px;
}

.footer-col h3 {
  color: var(--white);
  font-size: 1.4rem;
  margin-bottom: 25px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h3::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 2px;
  background-color: var(--earth-beige);
}

.footer-about p {
  line-height: 1.8;
  font-size: 0.9rem;
  color: #bcaaa4;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.footer-links a {
  font-size: 0.9rem;
  color: #bcaaa4;
}

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

.footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: 15px;
  font-size: 0.9rem;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: #8d6e63;
}

/* ==========================================================================
   SCROLL REVEAL EFFECTS
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1), transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* ==========================================================================
   RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */

@media (max-width: 992px) {
  .container {
    padding: 60px 0;
  }
  
  .about-grid,
  .dang-ky-grid,
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-visual {
    height: 400px;
  }

  .footer-grid {
    gap: 30px;
  }
}

@media (max-width: 768px) {
  .header-container {
    padding: 10px 0;
  }

  .logo-text {
    font-size: 1.2rem;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background: var(--white);
    flex-direction: column;
    justify-content: center;
    gap: 40px;
    box-shadow: -10px 0 30px rgba(0,0,0,0.1);
    transition: var(--transition-smooth);
    z-index: 1000;
  }

  .nav-menu.active {
    right: 0;
  }

  .menu-toggle {
    display: flex;
  }

  .menu-toggle.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

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

  .menu-toggle.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .hero-content h1 {
    line-height: 1.2;
  }

  #dyn-hero-subtitle {
    font-size: clamp(1rem, 4.5vw, 1.4rem);
    letter-spacing: 4px;
    margin-bottom: 8px;
  }

  #dyn-hero-title {
    font-size: clamp(2.2rem, 10vw, 3.2rem);
    letter-spacing: 2px;
  }

  .hero-tagline {
    font-size: 0.95rem;
  }

  .hero-btns {
    flex-direction: column;
    width: 100%;
    gap: 15px;
  }

  .btn-cta, .btn-secondary {
    width: 100%;
    text-align: center;
  }

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

  .amenities-grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
    padding: 20px;
    gap: 15px;
    overflow-y: auto;
  }

  .amenities-wrapper {
    height: auto;
    min-height: 500px;
  }

  .amenity-card {
    padding: 25px;
    height: auto;
    min-height: 150px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 15px;
    text-align: center;
  }
}

/* ==========================================================================
   FLOATING CONTACT BUTTONS (PHONE & ZALO)
   ========================================================================== */
.floating-contact-wrapper {
  position: fixed;
  bottom: 30px;
  right: 30px;
  display: flex;
  flex-direction: column;
  gap: 15px;
  z-index: 9999;
}

.floating-btn {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  text-decoration: none;
  position: relative;
  transition: var(--transition-fast);
}

.floating-btn .btn-icon {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.25);
  transition: var(--transition-fast);
  z-index: 2;
}

.floating-btn svg {
  width: 26px;
  height: 26px;
}

/* Zalo styles */
.btn-zalo .btn-icon {
  background-color: #0068ff;
  color: #ffffff;
}

.btn-zalo:hover .btn-icon {
  background-color: #005ae6;
  transform: scale(1.05);
}

/* Phone styles */
.btn-phone .btn-icon {
  background-color: #2e7d32;
  color: #ffffff;
}

.btn-phone:hover .btn-icon {
  background-color: #1b5e20;
  transform: scale(1.05);
}

/* Hover label styles */
.floating-btn .btn-label {
  background-color: var(--earth-dark);
  color: var(--white);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-right: 12px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
  opacity: 0;
  transform: translateX(10px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  pointer-events: none;
  white-space: nowrap;
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: inline-block;
}

.floating-btn:hover .btn-label {
  opacity: 1;
  transform: translateX(0);
}

/* Pulse animation for phone button */
.pulse-btn::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background-color: rgba(46, 125, 50, 0.4);
  z-index: 1;
  animation: phonePulse 1.8s infinite ease-out;
}

@keyframes phonePulse {
  0% {
    transform: scale(1);
    opacity: 1;
  }
  100% {
    transform: scale(1.6);
    opacity: 0;
  }
}

/* Mobile responsive alignment */
@media (max-width: 768px) {
  .floating-contact-wrapper {
    bottom: 20px;
    right: 20px;
    gap: 12px;
  }
  
  .floating-btn .btn-icon {
    width: 48px;
    height: 48px;
  }
  
  .pulse-btn::before {
    width: 48px;
    height: 48px;
  }
  
  .floating-btn .btn-label {
    display: none; /* Hide text label on mobile to avoid clutter */
  }
}