/* ==========================================================================
   SaintCons Inspired Luxury Template
   ========================================================================== */
@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700&family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&display=swap');

:root {
  /* Colors */
  --color-primary: #D4AF37; /* Vàng gold sang trọng chuẩn */
  --color-primary-dark: #B08D28;
  --color-primary-light: #F0DC82;
  
  --color-bg: #0a0a0a; /* Đen nhám Taste */
  --color-surface: #141414; /* Xám than Taste */
  --color-surface-light: #1e1e1e;
  
  --color-text-main: #f5f4f2;
  --color-text-muted: #a0a0a5;
  
  /* Typography */
  --font-main: 'Manrope', sans-serif;
  --font-accent: 'Playfair Display', serif;
  
  /* Metrics */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  
  /* Transitions (Taste cubic-bezier) */
  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  
  /* Taste Shadows */
  --shadow-taste: 0 14px 30px -12px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.06);
  --shadow-taste-hover: 0 20px 40px -12px rgba(0,0,0,0.7), inset 0 1px 0 rgba(255,255,255,0.1);
}

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

html {
  scroll-behavior: smooth;
}

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

/* Noise Overlay */
.noise-overlay {
  position: fixed;
  inset: 0;
  z-index: 9998;
  pointer-events: none;
  background-image: url('data:image/svg+xml,%3Csvg viewBox="0 0 200 200" xmlns="http://www.w3.org/2000/svg"%3E%3Cfilter id="noiseFilter"%3E%3CfeTurbulence type="fractalNoise" baseFrequency="0.85" numOctaves="3" stitchTiles="stitch"/%3E%3C/filter%3E%3Crect width="100%25" height="100%25" filter="url(%23noiseFilter)" opacity="0.04"/%3E%3C/svg%3E');
}

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

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

.container {
  width: 100%;
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 40px;
}

/* ==========================================================================
   Header (Pill Navigation)
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: transparent;
  padding: 20px 0;
  transition: all var(--transition-smooth);
}

.header.scrolled {
  background: rgba(5, 5, 5, 0.95);
  padding: 15px 0;
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

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

.header__logo {
  font-family: var(--font-main);
  font-size: 1.8rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.5px;
}

.header__logo span {
  color: var(--color-primary);
}

.header__nav {
  display: flex;
  gap: 40px;
}

.header__nav-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: #fff;
  position: relative;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.header__nav-link:hover,
.header__nav-link--active {
  color: var(--color-primary);
  background: rgba(255, 255, 255, 0.05);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

.lang-toggle {
  display: flex;
  background: rgba(255,255,255,0.1);
  border-radius: var(--radius-full);
  padding: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  border: 1px solid rgba(255,255,255,0.2);
}

.lang-toggle span {
  padding: 6px 12px;
  border-radius: var(--radius-full);
  cursor: pointer;
}

.lang-toggle span.active {
  background: var(--color-primary);
  color: #000;
}

.phone-btn {
  background: #1a1a1a;
  color: var(--color-primary);
  padding: 10px 24px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(212, 175, 55, 0.3);
  box-shadow: var(--shadow-taste);
  transition: all var(--transition-smooth);
}

.phone-btn:hover {
  transform: translateY(-2px);
  background: #222;
  border-color: rgba(212, 175, 55, 0.6);
  box-shadow: var(--shadow-taste-hover);
  color: var(--color-primary-light);
}

.phone-btn:active {
  transform: scale(0.96);
}

/* ==========================================================================
   Splash Screen (Tối Giản / Cinematic)
   ========================================================================== */
.splash {
  position: fixed;
  inset: 0;
  background-color: #050505;
  background-image: linear-gradient(to bottom, rgba(5,5,5,0.6), rgba(5,5,5,0.9)), url('/img/phuc1.jpg');
  background-size: cover;
  background-position: center;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.8s;
}

.splash.splash--hide {
  opacity: 0;
  visibility: hidden;
}

.splash__content {
  position: relative;
  z-index: 1;
  text-align: center;
  width: 100%;
  max-width: 600px;
  padding: 0 20px;
}

.splash__title {
  font-family: var(--font-accent);
  font-size: 2.5rem;
  letter-spacing: 4px;
  font-weight: 400;
  text-shadow: 0 4px 20px rgba(0,0,0,0.9), 0 0 40px rgba(0,0,0,0.9);
  animation: fadeUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards, goldShine 4s linear infinite;
  opacity: 0;
  margin-bottom: 24px;
  background: linear-gradient(120deg, #ffffff 0%, var(--color-primary) 50%, #ffffff 100%);
  background-size: 200% auto;
  color: transparent;
  -webkit-background-clip: text;
  background-clip: text;
}

.splash__loader {
  width: 100%;
  height: 2px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  overflow: hidden;
  opacity: 0;
  animation: fadeUp 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  animation-delay: 0.5s;
}

.splash__loader-bar {
  height: 100%;
  width: 0%;
  background: var(--color-primary);
  animation: loadingBar 1.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  animation-delay: 0.6s;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes loadingBar {
  0% { width: 0%; }
  50% { width: 70%; }
  100% { width: 100%; }
}

/* ==========================================================================
   Hero Section (Tràn Viền Cinematic)
   ========================================================================== */
.hero {
  position: relative;
  width: 100%;
  height: 100vh; /* Full màn hình */
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('/img/phuc3.JPG'); 
  background-size: cover;
  background-position: top center;
  z-index: 1;
}

/* Lớp phủ Dark Overlay mượt mà */
.hero__overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(5, 5, 5, 0.5) 0%, rgba(5, 5, 5, 0.9) 100%);
  z-index: 2;
}

.hero__content {
  position: relative;
  z-index: 3;
  max-width: 1000px;
  padding: 0 20px;
}

.hero__subtitle {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 6px;
  margin-bottom: 24px;
}

.hero__title {
  font-family: var(--font-main);
  font-size: clamp(3rem, 6vw, 5.5rem);
  font-weight: 800;
  line-height: 1.1;
  text-transform: uppercase;
  margin-bottom: 32px;
  letter-spacing: -1px;
}

.hero__title span.gold {
  display: inline-block;
  background: linear-gradient(120deg, var(--color-primary) 0%, #fff 50%, var(--color-primary) 100%);
  background-size: 200% auto;
  color: transparent;
  -webkit-background-clip: text;
  background-clip: text;
  animation: goldShine 3s linear infinite;
}

@keyframes goldShine {
  to {
    background-position: 200% center;
  }
}

.hero__desc {
  font-size: 1.15rem;
  color: #ddd;
  max-width: 700px;
  margin: 0 auto 48px;
  line-height: 1.8;
  font-weight: 400;
}

.hero__buttons {
  display: flex;
  justify-content: center;
  gap: 24px;
}

.btn {
  padding: 16px 36px;
  font-size: 0.95rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  border-radius: var(--radius-full);
  transition: all var(--transition-smooth);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-primary {
  background: #1a1a1a;
  color: var(--color-primary);
  border: 1px solid rgba(212, 175, 55, 0.3);
  box-shadow: var(--shadow-taste);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 50%; height: 100%;
  background: linear-gradient(to right, transparent, rgba(255,255,255,0.1), transparent);
  transform: skewX(-20deg);
  transition: all 0.7s ease;
}

.btn-primary:hover {
  background: #222;
  border-color: rgba(212, 175, 55, 0.6);
  color: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-taste-hover);
}

.btn-primary:hover::before {
  left: 200%;
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.2);
}

.btn-outline:hover {
  border-color: rgba(255,255,255,0.8);
  background: rgba(255,255,255,0.05);
  color: #fff;
  transform: translateY(-2px);
}

/* ==========================================================================
   Section Title Styles
   ========================================================================== */
.section {
  padding: 120px 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 50px;
}

/* Tự động ẩn toàn bộ Section nếu Tiêu đề bị xóa rỗng */
.section:has(.section-title:empty) {
  display: none !important;
}

.section-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 4px;
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-accent);
  font-size: 3.5rem;
  font-weight: 600;
  color: #fff;
}

/* ==========================================================================
   Services Grid (Cân Đối)
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.service-card {
  background: var(--color-surface);
  padding: 50px 40px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255,255,255,0.05);
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
  text-align: center;
  box-shadow: var(--shadow-taste);
}

.service-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  transition: width var(--transition-smooth);
}

.service-card:hover {
  background: var(--color-surface-light);
  transform: translateY(-6px) scale(1.02);
  box-shadow: var(--shadow-taste-hover);
  border-color: rgba(255,255,255,0.1);
}

.service-card:hover::after {
  width: 100%;
}

.service-icon {
  font-size: 3rem;
  color: var(--color-primary);
  margin-bottom: 24px;
}

.service-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.service-desc {
  color: var(--color-text-muted);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 32px;
}

.service-link {
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 2px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.service-link i {
  color: var(--color-primary);
  transition: transform var(--transition-fast);
}

.service-link:hover {
  color: var(--color-primary);
}

.service-link:hover i {
  transform: translateX(4px);
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--color-surface);
  border: 1px solid rgba(255,255,255,0.05);
}

.contact-info {
  padding: 80px 60px;
  background: #111215;
}

.contact-info__title {
  font-family: var(--font-accent);
  font-size: 2.5rem;
  margin-bottom: 32px;
  color: #fff;
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: 24px;
}

.info-item i {
  font-size: 1.2rem;
  color: var(--color-primary);
  margin-top: 4px;
}

.info-item h4 {
  font-size: 0.9rem;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.info-item p {
  color: var(--color-text-muted);
}

.contact-form {
  padding: 80px 60px;
}

.form-group {
  margin-bottom: 24px;
}

.form-control {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(255,255,255,0.2);
  padding: 12px 0;
  color: #fff;
  font-family: var(--font-main);
  font-size: 1rem;
  transition: border-color var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
}

.form-control::placeholder {
  color: rgba(255,255,255,0.4);
}

.submit-btn {
  background: var(--color-primary);
  color: #000;
  border: none;
  padding: 16px 40px;
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  cursor: pointer;
  margin-top: 16px;
  transition: all var(--transition-fast);
}

.submit-btn:hover {
  background: #fff;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  background: #0a0a0c;
  padding: 40px 0;
  text-align: center;
  border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-logo {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-logo span {
  color: var(--color-primary);
}

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

/* ==========================================================================
   Event Galleries & Videos
   ========================================================================== */
.event-section {
  margin-bottom: 80px;
}
.event-title {
  font-family: var(--font-accent);
  font-size: 2rem;
  color: var(--color-primary);
  margin-bottom: 24px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

/* Bố cục Gallery Tự Động (Auto-Masonry)
   Bất kể bạn thêm bao nhiêu ảnh, CSS sẽ tự động ghép thành lưới ngẫu nhiên đẹp mắt! */
.gallery-auto {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  grid-auto-rows: 240px;
  grid-auto-flow: dense; /* Tự động lấp chỗ trống */
  gap: 16px;
}
.gallery-auto img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-md); /* Squircle effect */
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  transition: all var(--transition-smooth);
  border: 1px solid rgba(255,255,255,0.05);
}
.gallery-auto img:hover {
  transform: scale(1.04) translateY(-4px);
  filter: brightness(1.1);
  z-index: 2;
  position: relative;
  box-shadow: var(--shadow-taste-hover);
  border-color: rgba(255,255,255,0.2);
}

.video-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.video-wrapper {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 */
  height: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
  border: 1px solid rgba(255,255,255,0.1);
}
.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* ==========================================================================
   About Page Specific
   ========================================================================== */
.sub-hero {
  position: relative;
  height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-img {
  position: relative;
}

.about-img img {
  width: 100%;
  border: 1px solid rgba(255,255,255,0.1);
  box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}

/* Gold Frame effect */
.about-img::before {
  content: '';
  position: absolute;
  top: -20px;
  left: -20px;
  width: 100%;
  height: 100%;
  border: 2px solid var(--color-primary);
  z-index: -1;
}

.about-text h2 {
  font-family: var(--font-accent);
  font-size: 3rem;
  margin-bottom: 24px;
}

.about-text p {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  line-height: 1.8;
  margin-bottom: 24px;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 40px;
}

.stat-item h3 {
  font-size: 3rem;
  color: var(--color-primary);
  font-weight: 300;
  font-family: var(--font-accent);
  margin-bottom: 8px;
}

.stat-item p {
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 2px;
  color: #fff;
}

/* Responsive */
@media (max-width: 992px) {
  .hero__title { font-size: 4rem; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .contact-wrap { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .gallery-auto {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    grid-auto-rows: 180px;
  }
}

@media (max-width: 768px) {
  .header {
    background: rgba(5, 5, 5, 0.95);
    padding: 15px 0;
  }
  .header__container {
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
  }
  .header__logo {
    text-align: center;
    width: 100%;
  }
  .header__nav {
    display: flex;
    gap: 15px;
    overflow-x: auto;
    width: 100%;
    justify-content: center;
    padding-bottom: 5px;
  }
  .header__nav::-webkit-scrollbar {
    display: none;
  }
  .header__nav-link {
    white-space: nowrap;
    font-size: 0.85rem;
    padding: 5px 10px;
  }
  .header__actions { display: none; }
  .hero__title { font-size: 2.2rem; }
  .splash__title { font-size: 1.8rem; letter-spacing: 2px; }
  .header__logo { font-size: 1.4rem; }
  .hero__buttons { flex-direction: column; width: 100%; }
  .services-grid { grid-template-columns: 1fr; }
  .container { padding: 0 20px; }
  .contact-info, .contact-form { padding: 40px 20px; }
  .gallery-auto {
    grid-template-columns: 1fr 1fr;
    grid-auto-rows: 160px;
  }
  .video-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
}