/* ==========================================
   DESIGN SYSTEM & CSS VARIABLES
   ========================================== */
:root {
  /* Bảng màu thượng lưu - Dark Pine Luxury */
  --color-bg-dark: hsl(160, 25%, 6%);       /* Midnight Pine (75%) */
  --color-bg-pine: hsl(158, 20%, 10%);      /* Deep Pine (15%) */
  --color-damp-moss: hsl(140, 18%, 15%);    /* Damp Moss */
  --color-fog-slate: hsl(150, 10%, 27%);    /* Fog Slate (borders) */
  
  --color-accent-gold: hsl(45, 80%, 54%);   /* Golden Mimosa (10%) */
  --color-accent-gold-hover: hsl(45, 85%, 60%);
  --color-accent-gold-rgb: 229, 178, 45;
  
  --color-text-primary: hsl(150, 8%, 96%);  /* Fog White */
  --color-text-secondary: hsl(150, 6%, 86%);/* Light Ash - Sáng và tương phản hơn rõ rệt để dễ đọc */
  --color-text-muted: hsl(150, 4%, 60%);
  
  /* Hiệu ứng mờ sương (Glassmorphism) */
  --glass-bg: rgba(9, 15, 13, 0.82);
  --glass-border: rgba(61, 76, 68, 0.3);
  --glass-blur: blur(25px);
  
  /* Phông chữ */
  --font-headline: 'WindSong', 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Mulish', system-ui, -apple-system, sans-serif;
  
  /* Cấp bậc font chữ tỉ lệ tương phản cao - PHÓNG TO TOÀN DIỆN CHO DESKTOP */
  --fs-hero-title: clamp(2.2rem, 3.8vw, 3.6rem);
  --fs-section-title: clamp(2.2rem, 3.8vw, 3.6rem);
  --fs-sub-title: clamp(1.45rem, 2.2vw, 2.2rem);
  --fs-body: clamp(1.3rem, 1.6vw, 1.7rem); /* To rõ nét, dễ đọc, Quiet Luxury cực chuẩn */
  
  --lh-headline: 1.2;
  --lh-body: 1.7;
  
  /* Ràng buộc kích thước rộng rãi, khoáng đạt cho màn hình lớn Desktop/2K/4K */
  --max-reading-width: 1450px;
  
  /* Thẻ chuyển đổi mượt */
  --transition-smooth: all 0.7s cubic-bezier(0.25, 1, 0.5, 1);
  --transition-fast: all 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

/* ==========================================
   RESET & BASE STYLES
   ========================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  background-color: var(--color-bg-dark);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  line-height: var(--lh-body);
  scroll-behavior: smooth;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Lenis smooth scrolling helpers */
html.lenis, html.lenis body {
  height: auto;
}

.lenis-smooth {
  scroll-behavior: auto !important;
}

.lenis-smooth [data-lenis-prevent] {
  overscroll-behavior: contain;
}

.lenis-stopped {
  overflow: hidden;
}

body {
  overflow-x: hidden;
  background-color: var(--color-bg-dark);
}

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

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

li {
  list-style: none;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-dark);
}

::-webkit-scrollbar-thumb {
  background: rgba(229, 178, 45, 0.25);
  border-radius: 4px;
  transition: var(--transition-fast);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-accent-gold);
}

/* ==========================================
   PREMIUM GLOBAL ELEMENTS
   ========================================== */

/* Premium Scroll Progress Indicator */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 4px;
  background: linear-gradient(90deg, rgba(229,178,45,0.4) 0%, var(--color-accent-gold) 100%);
  z-index: 9999;
  pointer-events: none;
  transition: width 0.1s linear;
}

/* Fixed Background Fog Overlay */
.fog-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    180deg,
    transparent 0%,
    rgba(9, 15, 13, 0.15) 30%,
    rgba(31, 46, 36, 0.25) 60%,
    rgba(9, 15, 13, 0.85) 100%
  );
  pointer-events: none;
  z-index: 2;
  will-change: transform;
}

/* ==========================================
   HEADER & GLASS NAVIGATION
   ========================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 2rem 0;
  background: transparent;
  border-bottom: 1px solid rgba(61, 76, 68, 0);
  transition: var(--transition-smooth);
}

.header--scrolled {
  padding: 1.2rem 0;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 4px 40px rgba(0, 0, 0, 0.5);
}

.header__container {
  max-width: var(--max-reading-width);
  width: 100%;
  margin: 0 auto;
  padding: 0 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.header__logo {
  font-family: var(--font-headline);
  font-size: 2.2rem;
  font-weight: 400;
  letter-spacing: 0.28em;
  color: var(--color-text-primary);
  position: relative;
  text-shadow: 0 2px 15px rgba(0,0,0,0.5);
}

.header__logo:hover {
  color: var(--color-accent-gold);
  letter-spacing: 0.32em;
}

.nav {
  display: block;
}

.nav__list {
  display: flex;
  gap: 3rem;
}

.nav__link {
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  position: relative;
  padding: 0.6rem 0;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background-color: var(--color-accent-gold);
  transition: var(--transition-fast);
  transform: translateX(-50%);
}

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

.nav__link:hover::after,
.nav__link.active::after {
  width: 90%;
}

.header__action {
  display: block;
}

/* Hamburger Toggle for Mobile */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 102;
  flex-direction: column;
  gap: 6px;
}

.nav-toggle__bar {
  display: block;
  width: 26px;
  height: 2px;
  background-color: var(--color-text-primary);
  transition: var(--transition-fast);
}

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

.nav-toggle.is-active .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

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

/* Mobile Nav Overlay */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 85%;
  max-width: 420px;
  height: 100vh;
  background: var(--glass-bg);
  backdrop-filter: blur(25px);
  -webkit-backdrop-filter: blur(25px);
  border-left: 1px solid var(--glass-border);
  z-index: 101;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
  padding: 2rem;
}

.mobile-nav.is-open {
  right: 0;
}

.mobile-nav__list {
  display: flex;
  flex-direction: column;
  gap: 2.2rem;
  width: 100%;
  text-align: center;
  align-items: center;
}

.mobile-nav__link {
  font-size: 1.25rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.mobile-nav__link:hover {
  color: var(--color-accent-gold);
}

/* Dot Navigation (Right side) */
.dot-nav {
  position: fixed;
  right: 3rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 1.8rem;
}

.dot-nav__item {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(245, 247, 246, 0.25);
  border: 1px solid transparent;
  position: relative;
  cursor: pointer;
  transition: var(--transition-fast);
}

.dot-nav__item:hover {
  background: var(--color-text-primary);
  transform: scale(1.4);
}

.dot-nav__item.active {
  background: var(--color-accent-gold);
  border-color: var(--color-accent-gold);
  box-shadow: 0 0 12px rgba(229, 178, 45, 0.85);
  transform: scale(1.4);
}

.dot-nav__label {
  position: absolute;
  right: 2.5rem;
  top: 50%;
  transform: translateY(-50%) translateX(12px);
  color: var(--color-text-secondary);
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-fast);
}

.dot-nav__item:hover .dot-nav__label {
  opacity: 1;
  transform: translateY(-50%) translateX(0);
  color: var(--color-text-primary);
}

/* ==========================================
   BUTTONS STYLES
   ========================================== */
.btn {
  display: inline-block;
  background: transparent;
  border: 1px solid var(--glass-border);
  color: var(--color-text-primary);
  padding: 14px 34px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.btn--header {
  padding: 10px 24px;
  font-size: 0.85rem;
  border: 1px solid var(--color-accent-gold);
  color: var(--color-accent-gold);
}

.btn--header:hover {
  background: var(--color-accent-gold);
  color: var(--color-bg-dark);
  box-shadow: 0 0 18px rgba(229, 178, 45, 0.45);
}

.btn-preorder {
  background: transparent;
  border: 1px solid var(--color-accent-gold);
  color: var(--color-accent-gold);
  font-weight: 700;
  padding: 14px 42px;
  font-size: 0.95rem;
}

.btn-preorder:hover {
  background: var(--color-accent-gold);
  color: var(--color-bg-dark);
  box-shadow: 0 0 28px rgba(229, 178, 45, 0.55);
  transform: translateY(-2px);
}

.btn--secondary {
  border: 1px solid rgba(245, 247, 246, 0.25);
  color: var(--color-text-secondary);
  padding: 14px 42px;
  font-size: 0.95rem;
}

.btn--secondary:hover {
  border-color: var(--color-text-primary);
  color: var(--color-text-primary);
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.w-full {
  width: 100%;
}

/* ==========================================
   LAYOUT STRUCTURE (Cinematic Grid system)
   ========================================== */
.main-wrapper {
  position: relative;
  z-index: 5;
}

.section {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.section__bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 130%; /* Higher ratio to secure gap-free parallax scrubbing */
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: 1;
  transform: translateY(0);
  will-change: transform;
}

.section__bg::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    180deg,
    rgba(9, 15, 13, 0.88) 0%,
    rgba(9, 15, 13, 0.5) 40%,
    rgba(9, 15, 13, 0.5) 60%,
    rgba(9, 15, 13, 0.96) 100%
  );
  pointer-events: none;
}

.section__content {
  position: relative;
  z-index: 10;
  max-width: var(--max-reading-width);
  width: 100%;
  margin: 0 auto;
  padding: 10vh 3rem 8vh 3rem; /* Higher padding for generous spaces */
}

.grid-layout {
  display: grid;
  grid-template-columns: 1fr 1fr; /* Tỷ lệ 50-50 cân bằng hoàn mỹ, phóng đại diện tích cột ảnh sản phẩm */
  gap: 8rem; /* Khoảng cách rộng rãi và khoáng đạt cực kỳ sang trọng */
  align-items: center;
}

.grid-layout--reverse {
  grid-template-columns: 1fr 1fr;
}

.section__info {
  display: flex;
  flex-direction: column;
  gap: 2rem; /* Higher gaps for larger typography hierarchy */
}

.section__media {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  width: 100%;
}

/* Staggered Scroll-reveal base */
.reveal-item {
  opacity: 0;
  transform: translateY(35px) scale(0.98);
  transition: opacity 1.4s cubic-bezier(0.25, 1, 0.5, 1), 
              transform 1.4s cubic-bezier(0.25, 1, 0.5, 1);
  will-change: transform, opacity;
}

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

/* ==========================================
   TYPOGRAPHY SPECIFICS
   ========================================== */
.brand-label, .small-label, .limited-label {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-accent-gold);
  text-shadow: 0 2px 12px rgba(229,178,45,0.15);
}

.hero-title {
  font-family: var(--font-headline);
  font-size: var(--fs-hero-title);
  font-weight: 300;
  line-height: 0.95;
  color: var(--color-text-primary);
  text-shadow: 0 4px 20px rgba(0,0,0,0.65);
  letter-spacing: -0.01em;
}

.section-title {
  font-family: var(--font-headline);
  font-size: var(--fs-section-title);
  font-weight: 300;
  line-height: var(--lh-headline);
  color: var(--color-text-primary);
  text-shadow: 0 4px 20px rgba(0,0,0,0.65);
}

.sub-label {
  font-family: var(--font-body);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.paragraph {
  font-size: var(--fs-body);
  color: var(--color-text-secondary);
  font-weight: 300;
  line-height: var(--lh-body);
  text-align: justify;
  max-width: 720px; /* Constrains reading line length to prevent visual dilution */
}

/* ==========================================
   SECTION 1: HERO SPECIFICS
   ========================================== */
.section--hero {
  background-color: var(--color-bg-dark);
}

.action-box {
  margin-top: 1.5rem;
}

/* Scroll indicator animation */
.scroll-indicator {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
  margin-top: 2.5rem;
  opacity: 0.75;
  transition: var(--transition-fast);
}

.scroll-indicator:hover {
  opacity: 1;
}

.scroll-indicator__text {
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.scroll-indicator__line {
  width: 1px;
  height: 70px;
  background: linear-gradient(180deg, var(--color-accent-gold) 0%, transparent 100%);
  position: relative;
  overflow: hidden;
}

.scroll-indicator__line::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 30px;
  background: white;
  animation: lineScroll 2.2s cubic-bezier(0.76, 0, 0.24, 1) infinite;
}

@keyframes lineScroll {
  0% { transform: translateY(-30px); }
  60%, 100% { transform: translateY(70px); }
}

/* Product frame - PHÓNG ĐẠI CỰC ĐẠI HÌNH ẢNH SẢN PHẨM TRÊN DESKTOP */
.product-frame {
  position: relative;
  width: 100%;
  max-width: 650px; /* TĂNG LÊN 650px CHO HÌNH ẢNH SẢN PHẨM KHỔNG LỒ HÙNG VĨ */
  background: linear-gradient(145deg, rgba(61, 76, 68, 0.18) 0%, rgba(9, 15, 13, 0.45) 100%);
  border: 1px solid rgba(229, 178, 45, 0.15); /* Viền vàng Mimosa mảnh sang trọng */
  padding: 1.5rem; /* GIẢM PADDING XUỐNG 1.5rem ĐỂ ẢNH LẤP ĐẦY KHUNG HÌNH (ẢNH TO GẤP ĐÔI!) */
  border-radius: 4px;
  box-shadow: 0 35px 80px rgba(0, 0, 0, 0.8), 0 0 30px rgba(229, 178, 45, 0.04);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: var(--transition-smooth);
}

.product-frame:hover {
  border-color: rgba(229, 178, 45, 0.35);
  box-shadow: 0 30px 70px rgba(229, 178, 45, 0.08);
}

.product-img {
  width: 100%;
  height: auto;
  object-fit: cover;
  transition: transform 1.5s cubic-bezier(0.25, 1, 0.5, 1);
}

.product-frame:hover .product-img {
  transform: scale(1.05);
}

/* ==========================================
   SECTION 2: SCENT ORIGIN
   ========================================== */
.product-caption {
  display: block;
  margin-top: 1.5rem;
  font-size: 0.85rem;
  font-style: italic;
  color: var(--color-text-muted);
  text-align: center;
  letter-spacing: 0.08em;
}

/* ==========================================
   SECTION 3: SCENT NOTES (3-Card Grid)
   ========================================== */
.scent-layout {
  display: flex;
  flex-direction: column;
  gap: 4.5rem;
  width: 100%;
}

.scent-intro {
  max-width: 800px;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.scent-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem; /* Wider gaps for elegant visual partition */
  width: 100%;
}

/* Stagger transition delay cho 3 Scent Cards */
.scent-card:nth-child(1) { transition-delay: 0.1s; }
.scent-card:nth-child(2) { transition-delay: 0.35s; }
.scent-card:nth-child(3) { transition-delay: 0.6s; }

.scent-card {
  background: linear-gradient(180deg, rgba(19, 28, 25, 0.5) 0%, rgba(9, 15, 13, 0.85) 100%);
  border: 1px solid rgba(61, 76, 68, 0.25);
  border-radius: 4px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.4);
}

.scent-card:hover {
  transform: translateY(-10px);
  border-color: rgba(229, 178, 45, 0.4);
  box-shadow: 0 25px 50px rgba(229, 178, 45, 0.08);
}

.scent-card__img-wrap {
  width: 100%;
  height: 340px; /* TĂNG CHIỀU CAO ẢNH ĐỂ HIỂN THỊ CẬN CẢNH LỚN VÀ RÕ NÉT */
  overflow: hidden;
  position: relative;
  cursor: pointer;
}

.scent-card__img-wrap::after {
  content: '🔍 Xem ảnh lớn';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(9, 15, 13, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  color: var(--color-accent-gold);
  opacity: 0;
  transition: var(--transition-fast);
  font-weight: 500;
  backdrop-filter: blur(3px);
}

.scent-card__img-wrap:hover::after {
  opacity: 1;
}

.scent-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s cubic-bezier(0.25, 1, 0.5, 1);
}

.scent-card:hover .scent-card__img {
  transform: scale(1.08);
}

.scent-card__body {
  padding: 2.5rem; /* INCREASED PADDING FOR PREMIUM TEXT DEPTH */
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  flex-grow: 1;
}

.scent-card__number {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 2.5rem;
  font-weight: 300;
  color: rgba(229, 178, 45, 0.28);
  line-height: 1;
}

.scent-card__label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent-gold);
}

.scent-card__title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.9rem, 2.5vw, 2.35rem); /* TĂNG KÍCH THƯỚC LỚN HƠN NỮA THEO YÊU CẦU */
  font-weight: 500;
  line-height: 1.3;
  color: var(--color-text-primary);
}

.scent-card__desc {
  font-size: 1.1rem; /* TO RÕ DỄ ĐỌC */
  color: var(--color-text-secondary);
  font-weight: 300;
  line-height: 1.65;
}

.scent-card__components {
  font-size: 0.85rem;
  font-style: italic;
  color: var(--color-text-muted);
  border-top: 1px solid rgba(61, 76, 68, 0.25);
  padding-top: 1.2rem;
  margin-top: auto;
  letter-spacing: 0.02em;
}

/* ==========================================
   SECTION 4: THE BOTTLE SPECIFICS
   ========================================== */
/* features-list mặc định */
.features-list {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  margin-top: 0.5rem;
}

/* Stagger transition delay cho features list items */
.features-item:nth-child(1) { transition-delay: 0.1s; }
.features-item:nth-child(2) { transition-delay: 0.25s; }
.features-item:nth-child(3) { transition-delay: 0.4s; }
.features-item:nth-child(4) { transition-delay: 0.55s; }

/* Nâng cấp features-list tại cột phải Section 4 (The Bottle) thành dạng bảng kính mờ luxury */
.section--bottle .features-list {
  background: rgba(19, 28, 25, 0.45);
  border: 1px solid rgba(229, 178, 45, 0.15); /* Viền vàng Mimosa nhẹ đồng bộ */
  padding: 2.2rem;
  border-radius: 4px;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 15px rgba(229, 178, 45, 0.02);
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  width: 100%;
}

.features-item {
  font-size: 1.3rem; /* PHÓNG TO ĐỂ ĐỌC DỄ DÀNG */
  font-weight: 400;
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.features-icon {
  width: 10px; /* Tăng nhẹ kích thước bullet icon */
  height: 10px;
  border-radius: 50%;
  background-color: var(--color-accent-gold);
  box-shadow: 0 0 12px var(--color-accent-gold);
  flex-shrink: 0;
}

.crafted-details {
  margin-top: 2.5rem;
  border-top: 1px solid rgba(245,247,246,0.12);
  padding-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.crafted-proof, .crafted-social {
  font-size: 1.15rem; /* PHÓNG TO HÀN TOÀN ĐỂ DỄ ĐỌC */
  color: var(--color-text-secondary);
  font-style: italic;
  line-height: 1.6;
}

/* ==========================================
   SECTION 5: PRE-ORDER SPECIFICS
   ========================================== */
.product-frame--preorder {
  border-color: rgba(229, 178, 45, 0.25);
  max-width: 680px; /* Cực đại kích thước cho hộp quà Pre-order hoành tráng */
}

.counter-box {
  position: absolute;
  bottom: -2rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-bg-pine);
  border: 1px solid var(--color-accent-gold);
  padding: 0.8rem 2.2rem;
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.75);
  white-space: nowrap;
  z-index: 15;
}

.counter-box__label {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.counter-box__number {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--color-accent-gold);
  letter-spacing: 0.05em;
  text-shadow: 0 0 8px rgba(229, 178, 45, 0.25);
}

.preorder-actions {
  display: flex;
  gap: 2rem;
  margin-top: 1.5rem;
}

.trust-note {
  font-size: 0.85rem;
  font-style: italic;
  color: var(--color-text-muted);
}

/* ==========================================
   INTERACTIVE POPUP MODALS
   ========================================== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1100;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s cubic-bezier(0.25, 1, 0.5, 1);
}

.modal.is-open {
  opacity: 1;
  pointer-events: auto;
}

.modal__backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(4, 8, 6, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.modal__content {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 540px;
  background: var(--color-bg-pine);
  border: 1px solid var(--color-accent-gold);
  padding: 3.5rem 3rem;
  border-radius: 4px;
  box-shadow: 0 35px 90px rgba(0, 0, 0, 0.85);
  transform: translateY(40px) scale(0.95);
  transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

.modal.is-open .modal__content {
  transform: translateY(0) scale(1);
}

.modal__close {
  position: absolute;
  top: 1.8rem;
  right: 1.8rem;
  background: none;
  border: none;
  font-size: 2.2rem;
  color: var(--color-text-secondary);
  cursor: pointer;
  line-height: 1;
  transition: var(--transition-fast);
}

.modal__close:hover {
  color: var(--color-accent-gold);
  transform: rotate(90deg);
}

.modal__title {
  font-family: var(--font-headline);
  font-size: var(--fs-section-title);
  font-weight: 300;
  text-align: center;
  margin-bottom: 0.6rem;
  color: var(--color-text-primary);
}

.modal__subtitle {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  text-align: center;
  line-height: 1.6;
  margin-bottom: 2.5rem;
  font-weight: 300;
}

/* Forms design */
.modal__form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.form-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent-gold);
  font-weight: 600;
}

.form-input {
  background: rgba(9, 15, 13, 0.6);
  border: 1px solid rgba(61, 76, 68, 0.5);
  padding: 12px 18px;
  font-family: var(--font-body);
  font-size: 1.05rem;
  color: var(--color-text-primary);
  border-radius: 4px;
  transition: var(--transition-fast);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-accent-gold);
  box-shadow: 0 0 12px rgba(229, 178, 45, 0.2);
  background: rgba(9, 15, 13, 0.8);
}

.form-group--checkbox {
  flex-direction: row;
  align-items: flex-start;
  gap: 1rem;
  margin: 0.5rem 0;
}

.form-checkbox {
  margin-top: 5px;
  width: 16px;
  height: 16px;
  accent-color: var(--color-accent-gold);
}

.form-checkbox-label {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
  cursor: pointer;
}

/* Modal Success Screen */
.modal__success {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.8rem;
}

.success-icon {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: rgba(229, 178, 45, 0.1);
  border: 1px solid var(--color-accent-gold);
  color: var(--color-accent-gold);
  font-size: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.5rem;
}

.ticket-box {
  background: rgba(9, 15, 13, 0.55);
  border: 1px dashed rgba(229, 178, 45, 0.5);
  padding: 1.5rem 2.5rem;
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 0.5rem 0;
  width: 100%;
}

.ticket-box__label {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--color-text-secondary);
}

.ticket-box__code {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: 1.8rem;
  font-weight: 500;
  color: var(--color-accent-gold);
  letter-spacing: 0.05em;
}

.success-note {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.hidden {
  display: none !important;
}

/* ==========================================
   SCENT IMAGE LIGHTBOX MODAL (PARALLAX CINEMATIC)
   ========================================== */
.scent-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

.scent-modal.is-open {
  opacity: 1;
  pointer-events: auto;
}

.scent-modal__backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(4, 8, 6, 0.92);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
}

.scent-modal__inner {
  position: relative;
  z-index: 10;
  width: 90%;
  max-width: 1000px; /* INCREASED FROM 900px FOR EPIC SCALE */
  max-height: 85vh;
  border: 1px solid rgba(229, 178, 45, 0.25);
  background: var(--color-bg-dark);
  box-shadow: 0 45px 110px rgba(0, 0, 0, 0.95);
  border-radius: 4px;
  overflow: hidden;
  transform: scale(0.95);
  transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

.scent-modal.is-open .scent-modal__inner {
  transform: scale(1);
}

.scent-modal__close {
  position: absolute;
  top: 1.8rem;
  right: 1.8rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  font-size: 2.5rem;
  color: var(--color-accent-gold);
  cursor: pointer;
  line-height: 1;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
  z-index: 30;
}

.scent-modal__close:hover {
  transform: rotate(90deg);
  background: var(--color-accent-gold);
  color: var(--color-bg-dark);
  border-color: var(--color-accent-gold);
}

.scent-modal__img-container {
  position: relative;
  width: 100%;
  height: 85vh;
  overflow: hidden;
}

.scent-modal__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Premium Black Gradient overlay at the bottom */
.scent-modal__info {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  background: linear-gradient(to top, rgba(4, 8, 6, 0.98) 0%, rgba(4, 8, 6, 0.85) 60%, rgba(4, 8, 6, 0) 100%);
  padding: 6rem 4rem 4rem 4rem; /* INCREASED PADDING FOR COMFORTABLE TEXT */
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  color: var(--color-text-primary);
  z-index: 20;
}

.scent-modal__label {
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-accent-gold);
}

.scent-modal__title {
  font-family: var(--font-headline);
  font-size: var(--fs-section-title);
  font-weight: 300;
}

.scent-modal__desc {
  font-size: 1.2rem; /* TO RÕ HOÀNH TRÁNG */
  color: var(--color-text-secondary);
  line-height: 1.7;
  font-weight: 300;
  max-width: 800px;
}

.scent-modal__components {
  font-size: 0.95rem;
  font-style: italic;
  color: var(--color-accent-gold);
  margin-top: 0.6rem;
  border-top: 1px solid rgba(229,178,45,0.25);
  padding-top: 0.8rem;
  display: inline-block;
  align-self: flex-start;
  letter-spacing: 0.05em;
}

/* ==========================================
   CUSTOM ALERT NOTIFICATIONS
   ========================================== */
.custom-alert {
  position: fixed;
  bottom: 3rem;
  left: 3rem;
  z-index: 1000;
  background: var(--color-bg-pine);
  border: 1px solid var(--color-accent-gold);
  border-left: 5px solid var(--color-accent-gold);
  padding: 1.2rem 2.5rem;
  border-radius: 4px;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.6);
  transform: translateX(-150%);
  transition: transform 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.custom-alert.is-show {
  transform: translateX(0);
}

.custom-alert__text {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-primary);
}

/* ==========================================
   FOOTER STYLES
   ========================================== */
.footer {
  background-color: hsl(160, 25%, 3%);
  border-top: 1px solid rgba(61, 76, 68, 0.18);
  padding: 4rem 0;
  position: relative;
  z-index: 5;
}

.footer__container {
  max-width: var(--max-reading-width);
  width: 100%;
  margin: 0 auto;
  padding: 0 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
}

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

.footer__slogan {
  font-family: var(--font-headline);
  font-size: clamp(2rem, 4.5vw, 3.9rem);
  font-style: italic;
  color: var(--color-accent-gold);
  letter-spacing: 0.08em;
  opacity: 0.85;
}

/* ==========================================
   RESPONSIVE DESIGN (Adaptive breakpoints)
   ========================================== */
@media (max-width: 1200px) {
  .grid-layout, .grid-layout--reverse {
    gap: 4rem;
  }
  
  .product-frame {
    max-width: 440px;
  }
}

@media (max-width: 1024px) {
  .grid-layout, .grid-layout--reverse {
    grid-template-columns: 1fr;
    gap: 3.5rem;
  }
  
  .grid-layout--reverse .section__media {
    order: 2;
  }
  
  .section__content {
    padding: 10vh 3rem 8vh 3rem;
  }
  
  .scent-cards-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
  
  .scent-card:last-child {
    grid-column: span 2;
  }
  
  .product-frame {
    max-width: 460px;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 15px;
  }
  
  .header {
    padding: 1.2rem 0;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
  }
  
  .nav {
    display: none;
  }
  
  .header__action {
    display: none;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .dot-nav {
    display: none;
  }
  
  .scent-cards-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .scent-card:last-child {
    grid-column: span 1;
  }
  
  .preorder-actions {
    flex-direction: column;
    gap: 1.2rem;
  }
  
  .footer__container {
    flex-direction: column;
    text-align: center;
  }
  
  .scent-modal__inner {
    max-height: 90vh;
  }
  
  .scent-modal__img-container {
    height: 90vh;
  }
  
  .scent-modal__info {
    padding: 4rem 2rem 2rem 2rem;
  }
  
  .scent-modal__title {
    font-size: 1.8rem;
  }
  
  .scent-modal__desc {
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .section__content {
    padding: 12vh 1.5rem 8vh 1.5rem;
  }
  
  .modal__content {
    padding: 2.8rem 1.8rem;
  }
  
  .product-frame {
    padding: 2rem;
  }
}

/* ==========================================
   ACCESSIBILITY & PREFERS REDUCED MOTION
   ========================================== */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto !important;
  }
  
  .reveal-item {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  
  .section__bg {
    transform: none !important;
    transition: none !important;
  }
  
  .fog-overlay {
    display: none !important;
  }
  
  .product-img, .scent-card__img {
    transform: none !important;
    transition: none !important;
  }
}