:root {
  --color-primary: #D4AF37;
  --color-primary-light: #F4E8C1;
  --color-secondary: #000000;
  --color-accent-pink: #FFB6C1;
  --color-accent-green: #90EE90;
  --color-accent-yellow: #FFD700;
  --color-white: #FFFFFF;
  --color-bg-light: #FDFDFD;
  --color-bg-dark: #121212;
  --color-text-main: #1A1A1A;
  --color-text-muted: #555555;
  --color-gradient: linear-gradient(135deg, #D4AF37 0%, #B8860B 100%);
  --color-gradient-dark: linear-gradient(135deg, #1A1A1A 0%, #000000 100%);
  --color-gradient-soft: linear-gradient(135deg, #FDFDFD 0%, #FFFFFF 100%);

  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Poppins', sans-serif;
  --transition: transform 0.4s cubic-bezier(0.165, 0.84, 0.44, 1),
    box-shadow 0.4s cubic-bezier(0.165, 0.84, 0.44, 1),
    opacity 0.4s cubic-bezier(0.165, 0.84, 0.44, 1),
    color 0.4s cubic-bezier(0.165, 0.84, 0.44, 1),
    background-color 0.4s cubic-bezier(0.165, 0.84, 0.44, 1),
    border-color 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
  --shadow-soft: 0 10px 40px rgba(184, 134, 11, 0.1);
  --shadow-bold: 0 20px 60px rgba(184, 134, 11, 0.2);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-text-main);
  background-color: var(--color-white);
  line-height: 1.7;
  overflow-x: hidden;
}

.container {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 5%;
}

.center {
  text-align: center;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

/* Typography */
h1,
h2,
h3,
h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 60px;
  height: 4px;
  background: var(--color-gradient);
  border-radius: 2px;
}

.center .section-title::after {
  left: 50%;
  transform: translateX(-50%);
}

.text-gradient {
  background: var(--color-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Topbar */
.topbar {
  background: var(--color-bg-light);
  padding: 8px 0;
  font-size: 0.85rem;
  border-bottom: 1px solid rgba(212, 175, 55, 0.1);
}

.topbar-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.topbar-info {
  display: flex;
  gap: 2rem;
}

.topbar-info span i {
  color: var(--color-primary);
  margin-right: 5px;
}

.topbar-info a {
  text-decoration: none;
  color: var(--color-text-main);
  font-weight: 600;
}

.topbar-social {
  display: flex;
  gap: 1rem;
}

.topbar-social a {
  color: var(--color-primary);
  font-size: 1.1rem;
  transition: var(--transition);
}

.topbar-social a:hover {
  transform: scale(1.2);
}

.zalo-link {
  background: #0068FF;
  color: white !important;
  padding: 1px 8px;
  border-radius: 4px;
  font-weight: 700;
  text-decoration: none;
}

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  padding: 15px 0;
  transition: var(--transition);
  border-bottom: 1px solid transparent;
}

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

  .nav-logo {
    height: 40px;
  }

  .brand-name {
    font-size: 1.1rem;
  }

  .brand-tagline {
    font-size: 0.65rem;
  }
}

header.scrolled {
  padding: 10px 0;
  box-shadow: var(--shadow-soft);
  border-bottom-color: rgba(212, 175, 55, 0.1);
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

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

.shine-effect {
  position: relative;
  overflow: hidden;
  display: block;
  border-radius: inherit;
}

.nav-logo {
  height: 50px;
}

.shine-effect::after {
  content: '';
  position: absolute;
  top: 0;
  left: -200%;
  width: 100%;
  height: 100%;
  background: linear-gradient(to right,
      rgba(255, 255, 255, 0) 0%,
      rgba(255, 255, 255, 0.4) 30%,
      rgba(255, 255, 255, 0.7) 50%,
      rgba(255, 255, 255, 0.4) 70%,
      rgba(255, 255, 255, 0) 100%);
  transform: skewX(-30deg);
  animation: shine-animation 4s infinite ease-in-out;
  pointer-events: none;
}

@keyframes shine-animation {
  0% {
    left: -200%;
  }

  20% {
    left: 200%;
  }

  100% {
    left: 200%;
  }
}

.brand-info {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 1px;
  position: relative;
}

.brand-name::after {
  content: 'Xuân 2026';
  position: absolute;
  top: -10px;
  right: -50px;
  font-size: 0.6rem;
  background: #C41E3A;
  /* Cardinal Red for Luck */
  color: white;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: var(--font-body);
  letter-spacing: 0;
  white-space: nowrap;
  animation: pulse-red 2s infinite;
}

@keyframes pulse-red {
  0% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(196, 30, 58, 0.4);
  }

  70% {
    transform: scale(1.05);
    box-shadow: 0 0 0 10px rgba(196, 30, 58, 0);
  }

  100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(196, 30, 58, 0);
  }
}

.brand-tagline {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.desktop-nav {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.desktop-nav a {
  text-decoration: none;
  color: var(--color-text-main);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
}

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

.cta-nav {
  background: var(--color-gradient);
  color: var(--color-white) !important;
  padding: 10px 24px;
  border-radius: 50px;
  box-shadow: var(--shadow-soft);
}

.cta-nav:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-bold);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-primary);
  cursor: pointer;
}

/* Hero Slider */
.hero-slider {
  height: 85vh;
  position: relative;
  overflow: hidden;
}

.slider-container {
  height: 100%;
}

.slide {
  height: 100%;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  color: var(--color-text-main);
}

.slide-content {
  max-width: 800px;
}

.reveal-slide,
.reveal-slide-delay {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.reveal-slide.active,
.reveal-slide-delay.active {
  opacity: 1;
  transform: translateY(0);
}

.reveal-slide-delay {
  transition-delay: 0.3s;
}

.hero-logo {
  max-width: 160px;
  margin-bottom: 1.5rem;
}

.slide-content h1 {
  font-size: 4.5rem;
  margin-bottom: 1rem;
  font-weight: 800;
  color: var(--color-text-main);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.slide-content p {
  font-size: 1.4rem;
  margin-bottom: 2.5rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

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

.text-primary {
  color: var(--color-primary);
}

/* About */
.about {
  padding: 100px 0;
}

.about-visual {
  position: relative;
}

.about-img {
  width: 100%;
  max-width: 450px;
  filter: drop-shadow(var(--shadow-bold));
}

.experience-badge {
  position: absolute;
  top: 10%;
  right: 15%;
  background: var(--color-gradient);
  color: white;
  padding: 20px;
  border-radius: 20px;
  text-align: center;
  box-shadow: var(--shadow-bold);
  animation: float 4s ease-in-out infinite;
}

.experience-badge .number {
  display: block;
  font-size: 2.5rem;
  font-weight: 800;
}

.experience-badge .text {
  font-size: 0.8rem;
  text-transform: uppercase;
  font-weight: 600;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  color: var(--color-primary);
}

/* Services */
.bg-light {
  background-color: var(--color-bg-light);
}

.services {
  padding: 100px 0;
}

.center {
  text-align: center;
  margin-bottom: 4rem;
}

.services-modern-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.service-bubble {
  background: var(--color-white);
  padding: 3rem 2rem;
  border-radius: 30px;
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(212, 175, 55, 0.05);
  will-change: transform, box-shadow;
}

.service-bubble:hover {
  transform: translateY(-15px);
  box-shadow: var(--shadow-bold);
}

.bubble-icon {
  width: 140px;
  height: 140px;
  margin: 0 auto 1.5rem;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--color-primary-light);
}

.bubble-icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.service-bubble h3 {
  margin-bottom: 1rem;
  color: var(--color-primary);
}

/* Gallery */
.gallery {
  padding: 100px 0;
}

.filter-btns {
  margin-top: 1.5rem;
  display: flex;
  gap: 10px;
}

.filter-btns button {
  background: none;
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  padding: 5px 20px;
  border-radius: 20px;
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition);
}

.filter-btns button.active,
.filter-btns button:hover {
  background: var(--color-primary);
  color: white;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.gallery-item {
  position: relative;
  height: 280px;
  border-radius: 20px;
  overflow: hidden;
  cursor: zooming-in;
  will-change: transform;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition);
  will-change: transform;
}

.gallery-item .overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition);
  will-change: opacity;
}

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

.gallery-item:hover img {
  transform: scale(1.1);
}

.overlay span {
  color: white;
  font-weight: 700;
  font-size: 1.2rem;
  text-align: center;
  padding: 0 1rem;
}

/* Testimonials */
.bg-gradient-blue {
  background: var(--color-gradient);
}

.testimonials {
  padding: 100px 0;
  color: white;
}

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.testimonial-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: 3rem;
  border-radius: 25px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.testimonial-card p {
  font-style: italic;
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 15px;
}

.avatar {
  width: 50px;
  height: 50px;
  background: var(--color-white);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-weight: 800;
}

/* Contact */
.contact {
  padding: 100px 0;
}

.contact-details {
  list-style: none;
  margin-top: 2rem;
}

.contact-details li {
  display: flex;
  gap: 15px;
  margin-bottom: 1.5rem;
  align-items: flex-start;
}

.contact-details i {
  color: var(--color-primary);
  font-size: 1.2rem;
  background: var(--color-primary-light);
  width: 45px;
  height: 45px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
}

.contact-modern-form {
  background: var(--color-white);
  padding: 3rem;
  border-radius: 30px;
  box-shadow: var(--shadow-bold);
  will-change: transform, box-shadow;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 15px 25px;
  border: 1px solid #ddd;
  border-radius: 15px;
  font-family: inherit;
  font-size: 1rem;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-primary-light);
}

.btn {
  display: inline-block;
  padding: 15px 35px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 700;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  font-size: 1rem;
  will-change: transform, box-shadow;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
}

.btn-outline {
  border: 2px solid white;
  color: white;
}

.btn-gradient {
  background: var(--color-gradient);
  color: white;
}

.full-width {
  width: 100%;
}

.map-placeholder {
  height: 300px;
  background: #eee;
  margin-top: 4rem;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #888;
  font-weight: 600;
  border: 2px dashed #ccc;
}

/* Footer */
footer {
  background: url('../images/footer_bg_ultra_luxury.jpg') no-repeat center center / cover;
  position: relative;
  color: #333333;
  padding: 100px 0 30px;
  overflow: hidden;
}

footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.85);
  /* Light premium overlay */
  z-index: 1;
}

.footer-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.5fr 0.8fr 0.8fr 1.2fr;
  gap: 3rem;
}

.footer-brand p {
  color: #555555;
}

.footer-logo {
  height: 70px;
  margin-bottom: 1rem;
  filter: drop-shadow(0 2px 5px rgba(0, 0, 0, 0.1));
}

.footer-links h4,
.footer-contact h4 {
  margin-bottom: 2rem;
  color: #B8860B;
  /* Darker gold for light background */
  font-size: 1.3rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-contact-list li {
  display: flex;
  gap: 15px;
  margin-bottom: 20px;
  color: #333333;
}

.footer-contact-list i {
  color: #B8860B;
  margin-top: 5px;
  font-size: 1.1rem;
}

.footer-contact-list a {
  color: #333333;
  text-decoration: none;
  transition: var(--transition);
  font-weight: 500;
  border-bottom: 1px solid transparent;
}

.footer-contact-list a:hover {
  color: #B8860B;
  border-bottom-color: #B8860B;
}

.footer-links a {
  display: block;
  text-decoration: none;
  color: #555555;
  margin-bottom: 12px;
  transition: var(--transition);
}

.footer-links a:hover {
  color: #B8860B;
  padding-left: 5px;
}

.social-icons {
  display: flex;
  gap: 15px;
}

.social-icons a {
  width: 35px;
  height: 35px;
  border-radius: 50%;
  background: var(--color-white);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: var(--transition);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
  text-decoration: none;
}

.social-icons a:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-3px);
}

.zalo-icon-footer {
  border: 1px solid var(--color-primary) !important;
}

.footer-bottom {
  margin-top: 60px;
  padding: 30px 0;
  border-top: 1px solid rgba(0, 0, 0, 0.1);
  font-size: 0.9rem;
  color: #1a1a1a;
  /* Very dark for clear visibility */
  position: relative;
  z-index: 2;
  font-weight: 500;
}

.footer-bottom-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
}

.developer-credit a {
  color: #B8860B;
  /* Darker gold to match headings */
  text-decoration: none;
  font-weight: 800;
  transition: var(--transition);
}

.developer-credit a:hover {
  color: var(--color-secondary);
}

@media (max-width: 768px) {
  .footer-bottom-content {
    justify-content: center;
    flex-direction: column;
    text-align: center;
    gap: 10px;
  }
}

/* Animations */
@keyframes float {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-10px);
  }
}

/* Process Section */
.process {
  padding: 100px 0;
  background-color: var(--color-white);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: 4rem;
  position: relative;
}

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

.process-icon {
  width: 80px;
  height: 80px;
  background: var(--color-gradient);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 1.5rem;
  position: relative;
  z-index: 2;
  box-shadow: var(--shadow-bold);
}

.process-step {
  position: absolute;
  top: -5px;
  right: -5px;
  width: 30px;
  height: 30px;
  background: var(--color-secondary);
  color: white;
  border-radius: 50%;
  font-size: 0.8rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid white;
}

.process-item h4 {
  margin-bottom: 0.5rem;
  color: var(--color-primary);
}

.process-item p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* Hero Slider Enhancements */
.hero-slider {
  height: 85vh;
  position: relative;
}

.slider-container {
  height: 100%;
  width: 100%;
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1s ease-in-out;
  background-size: cover;
  background-position: center;
}

.slide.active {
  opacity: 1;
  z-index: 10;
}

.slide-content {
  position: relative;
  z-index: 20;
}

.hero-btns {
  margin-top: 2rem;
  display: flex;
  gap: 1rem;
}

.reveal-up,
.reveal-left,
.reveal-right,
.reveal-zoom {
  opacity: 0;
  transition: opacity 1s ease-out, transform 1s ease-out;
  will-change: opacity, transform;
}

.reveal-up {
  transform: translateY(50px);
}

.reveal-left {
  transform: translateX(-50px);
}

.reveal-right {
  transform: translateX(50px);
}

.reveal-zoom {
  transform: scale(0.9);
}

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

.active.reveal-left {
  opacity: 1;
  transform: translateX(0);
}

.active.reveal-right {
  opacity: 1;
  transform: translateX(0);
}

.active.reveal-zoom {
  opacity: 1;
  transform: scale(1);
}

/* Mobile Hero Banners & Slider Fixes */
@media (max-width: 768px) {
  .hero-slider {
    height: calc(100vh - 120px) !important;
    min-height: 500px;
  }

  /* Swap to mobile portrait backgrounds */
  .slide:nth-child(1) {
    background-image: url('../images/hero-banner-tet-2026-mobile.jpg') !important;
  }

  .slide:nth-child(2) {
    background-image: url('../images/hero-bg-airy-1-mobile.jpg') !important;
  }

  .slide:nth-child(3) {
    background-image: url('../images/hero-bg-airy-2-mobile.jpg') !important;
  }

  .slide:nth-child(4) {
    background-image: url('../images/hero-bg-airy-3-mobile.jpg') !important;
  }

  .slide-content h1 {
    font-size: 2.8rem;
  }

  .slide-content p {
    font-size: 1.1rem;
  }

  .hero-logo {
    max-width: 120px;
  }

  .slide-content {
    padding: 0 20px;
    text-align: center;
    width: 100%;
  }

  .slide-content h1 {
    font-size: 2.5rem !important;
    line-height: 1.2;
    margin-bottom: 1rem;
  }

  .slide-content p {
    font-size: 1rem !important;
    margin-bottom: 2rem;
  }

  .hero-btns {
    justify-content: center;
    flex-direction: column;
    gap: 15px;
  }

  .hero-btns .btn {
    width: 100%;
    padding: 12px 25px;
  }
}

.delay-1 {
  transition-delay: 0.1s;
}

.delay-2 {
  transition-delay: 0.2s;
}

.delay-3 {
  transition-delay: 0.3s;
}

/* Partners Section */
.partners {
  padding: 60px 0;
  background: var(--color-bg-dark);
  border-top: 1px solid rgba(139, 115, 85, 0.2);
}

.partners-title {
  text-align: center;
  margin-bottom: 30px;
  font-size: 1.2rem;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 3px;
  opacity: 0.8;
}

.partners-grid {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 50px;
}

.partner-link {
  text-decoration: none;
  transition: var(--transition);
}

.partner-item {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.3);
  text-transform: uppercase;
  transition: all 0.3s ease;
}

.partner-link:hover .partner-item {
  color: var(--color-primary);
  transform: scale(1.1);
  text-shadow: 0 0 15px rgba(184, 134, 11, 0.4);
}

@media (max-width: 768px) {
  .partners-grid {
    gap: 30px;
  }

  .partner-item {
    font-size: 0.9rem;
  }
}

/* Responsive */
@media (max-width: 992px) {
  .grid-2 {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .slide-content h1 {
    font-size: 3rem;
  }

  .footer-content {
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  .desktop-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: white;
    flex-direction: column;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  }

  .desktop-nav.active {
    display: flex;
  }

  .mobile-toggle {
    display: block;
  }

  .desktop-only {
    display: none;
  }

  /* Hero Mobile Fix */
  .hero-slider {
    height: 50vh;
  }

  .slide {
    background-position: center center;
  }

  .slide-content h1 {
    font-size: 2.2rem;
  }

  .slide-content p {
    font-size: 1rem;
  }
}

/* Back to Top */
#backToTop {
  display: none;
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 99;
  border: none;
  outline: none;
  background: var(--color-gradient);
  color: white;
  cursor: pointer;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  font-size: 1.2rem;
  box-shadow: var(--shadow-bold);
  transition: var(--transition);
}

#backToTop:hover {
  transform: translateY(-5px);
  filter: brightness(1.1);
}

section {
  scroll-margin-top: 80px;
}

/* Floating Contact Buttons V2 */
.floating-contact-v2 {
  position: fixed;
  bottom: 30px;
  left: 30px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.float-btn-v2 {
  display: flex;
  align-items: center;
  background: white;
  border-radius: 50px;
  padding: 6px;
  text-decoration: none;
  color: var(--color-text-main);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  transition: var(--transition);
  overflow: hidden;
  max-width: 54px;
  /* Default collapsed */
  white-space: nowrap;
}

.float-btn-v2:hover {
  max-width: 250px;
  /* Expand on hover */
  transform: translateX(5px);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.2);
}

.float-btn-v2.zalo {
  border: 1px solid #0068FF;
}

.float-btn-v2.phone {
  background: #23d14e;
  border: 1px solid #1eaa3e;
  color: white;
}

.btn-icon {
  width: 42px;
  height: 42px;
  min-width: 42px;
  background: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.float-btn-v2.zalo .btn-icon img {
  width: 30px;
  height: 30px;
}

.float-btn-v2.phone .btn-icon {
  color: #23d14e;
}

.btn-label {
  padding: 0 15px 0 10px;
  font-weight: 700;
  font-size: 0.95rem;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.float-btn-v2:hover .btn-label {
  opacity: 1;
}

/* Animations */
.float-btn-v2.phone .btn-icon i {
  animation: shake 0.5s infinite;
}

@keyframes shake {

  0%,
  100% {
    transform: rotate(0);
  }

  25% {
    transform: rotate(15deg);
  }

  75% {
    transform: rotate(-15deg);
  }
}

/* Footer Contact Refinements */
.footer-contact-list li {
  margin-bottom: 12px;
  line-height: 1.5;
}

.footer-contact-list strong {
  color: var(--color-primary);
  margin-right: 5px;
}

.footer-contact-list a {
  color: var(--color-text-main);
  text-decoration: none;
  transition: var(--transition);
}

.footer-contact-list a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

@media (max-width: 768px) {
  .floating-contact-v2 {
    left: 20px;
    bottom: 20px;
  }

  .float-btn-v2 {
    max-width: 50px;
  }

  .btn-icon {
    width: 38px;
    height: 38px;
    min-width: 38px;
  }

  /* Consolidated Footer Mobile Fixes */
  footer {
    padding: 60px 0 40px;
  }

  .footer-content {
    grid-template-columns: 1fr !important;
    gap: 3.5rem;
    text-align: center;
  }

  .footer-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .logo-wrapper {
    justify-content: center;
    margin-bottom: 1rem;
  }

  .social-icons {
    justify-content: center;
    margin-top: 1.5rem;
  }

  .footer-contact-list li {
    justify-content: center;
    text-align: left;
    /* Keep text left aligned but container centered */
    max-width: 320px;
    margin-left: auto;
    margin-right: auto;
  }

  .footer-bottom {
    margin-top: 40px;
    text-align: center;
  }

  .footer-bottom-content {
    flex-direction: column;
    gap: 10px;
  }

  /* Footer contact list mobile stacking */
  .footer-contact-list li {
    flex-direction: column;
    align-items: center;
    gap: 5px;
    text-align: center;
    margin-bottom: 25px;
  }

  .footer-contact-list li i {
    margin-top: 0;
    margin-bottom: 5px;
    font-size: 1.4rem;
  }

  /* Email handling for long strings */
  .footer-contact-list li a {
    word-break: break-all;
    font-size: 0.95rem;
  }

  /* Floating buttons repositioning to avoid overlap */
  .floating-contact-v2 {
    left: 15px;
    bottom: 15px;
    gap: 8px;
    z-index: 1001;
  }

  .float-btn-v2 {
    padding: 4px;
  }

  .btn-icon {
    width: 35px;
    height: 35px;
    min-width: 35px;
    font-size: 1rem;
  }

  .float-btn-v2.zalo .btn-icon img {
    width: 24px;
    height: 24px;
  }

  /* Shrink header spacing to reclaim vertical space */
  .section-title {
    font-size: 1.8rem;
  }
}

/* Premium Animations & Enhancements */
.float-btn-v2 {
  background: rgba(255, 255, 255, 0.8) !important;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.float-btn-v2.messenger {
  border: 1px solid #0084FF;
}

.float-btn-v2.messenger .btn-icon {
  color: #0084FF;
}

.notification-badge {
  position: absolute;
  top: -2px;
  right: -2px;
  width: 12px;
  height: 12px;
  background: #ff3b30;
  border-radius: 50%;
  border: 2px solid white;
  animation: pulse-red 2s infinite;
}

@keyframes pulse-red {
  0% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(255, 59, 48, 0.7);
  }

  70% {
    transform: scale(1);
    box-shadow: 0 0 0 10px rgba(255, 59, 48, 0);
  }

  100% {
    transform: scale(0.95);
    box-shadow: 0 0 0 0 rgba(255, 59, 48, 0);
  }
}

.float-btn-v2:hover .btn-icon i,
.float-btn-v2:hover .btn-icon img {
  animation: wiggle 0.5s ease-in-out;
}

@keyframes wiggle {

  0%,
  100% {
    transform: rotate(0);
  }

  25% {
    transform: rotate(-15deg);
  }

  75% {
    transform: rotate(15deg);
  }
}

.footer-contact-list i {
  width: 25px;
  text-align: center;
}

.footer-contact-list li i.fa-facebook-messenger {
  color: #0084FF;
}

.footer-contact-list li i.fa-location-dot {
  color: #ff3b30;
}

.footer-contact-list li i.fa-map-location-dot {
  color: #34c759;
}

/* Partners Section Enhancement */
.partners {
  padding: 120px 0;
  background: url('../images/partners_bg.jpg') no-repeat center center / cover;
  position: relative;
  overflow: hidden;
  color: white;
}

.partners::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(2px);
  z-index: 1;
}

.partners .container {
  position: relative;
  z-index: 2;
}

.partners-title {
  font-size: 2.5rem;
  margin-bottom: 4rem;
  color: #D4AF37;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.partners-marquee-container {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  mask-image: linear-gradient(to right, transparent, black 15%, black 85%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 15%, black 85%, transparent);
}

.marquee-row {
  display: flex;
  white-space: nowrap;
  gap: 1.5rem;
  animation: scroll-left var(--duration) linear infinite;
}

.marquee-row.reverse {
  animation: scroll-right var(--duration) linear infinite;
}

.partner-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 1rem 2rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: white;
  font-weight: 600;
  font-size: 1.1rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, background 0.3s ease, border 0.3s ease;
  user-select: none;
}

.partner-card:hover {
  transform: translateY(-5px) scale(1.05);
  background: rgba(255, 255, 255, 0.15);
  border-color: #D4AF37;
  color: #D4AF37;
}

@keyframes scroll-left {
  0% {
    transform: translateX(0);
  }

  100% {
    transform: translateX(calc(-50% - 0.75rem));
  }
}

@keyframes scroll-right {
  0% {
    transform: translateX(calc(-50% - 0.75rem));
  }

  100% {
    transform: translateX(0);
  }
}

@media (max-width: 768px) {
  .partners-title {
    font-size: 2rem;
    margin-bottom: 3rem;
  }

  .partner-card {
    padding: 0.8rem 1.5rem;
    font-size: 0.95rem;
  }
}