/* ========================================
   MANGO SEA VIEW HOTEL - DESIGN SYSTEM
   Apple-inspired, commercial-grade CSS
   ======================================== */

/* ---------- DESIGN TOKENS ---------- */
:root {
  --color-primary: #0071e3;
  --color-primary-hover: #0077ED;
  --color-gold: #c9a96e;
  --color-gold-light: #d4b87a;
  --color-dark: #1d1d1f;
  --color-gray-900: #2d2d2f;
  --color-gray-600: #6e6e73;
  --color-gray-400: #a1a1a6;
  --color-gray-200: #d2d2d7;
  --color-gray-100: #f5f5f7;
  --color-white: #ffffff;
  --color-success: #30d158;
  --color-error: #ff3b30;
  --color-overlay: rgba(0,0,0,0.5);

  --font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'PingFang SC', 'Helvetica Neue', 'Segoe UI', 'Microsoft YaHei', sans-serif;
  --font-hero: clamp(3rem, 7vw, 5.5rem);
  --font-section-title: clamp(2rem, 4.5vw, 3.5rem);
  --font-subtitle: clamp(1.1rem, 2vw, 1.5rem);
  --font-body: clamp(1rem, 1.2vw, 1.125rem);
  --font-small: 0.875rem;
  --font-weight-bold: 700;
  --font-weight-semibold: 600;
  --font-weight-regular: 400;
  --letter-spacing-tight: -0.025em;

  --section-padding: clamp(80px, 10vw, 140px);
  --content-max-width: 980px;
  --content-wide-width: 1200px;
  --content-padding: clamp(20px, 5vw, 40px);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.16);
  --shadow-card-hover: 0 12px 48px rgba(0,0,0,0.2);

  --ease-apple: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 0.3s;
  --duration-medium: 0.6s;
  --duration-slow: 0.8s;

  --glass-bg: rgba(255,255,255,0.72);
  --glass-bg-dark: rgba(29,29,31,0.82);
  --glass-blur: saturate(180%) blur(20px);

  --z-nav: 1000;
  --z-chat: 1100;
  --z-modal: 1200;
  --z-lightbox: 1300;
  --z-toast: 1400;

  --nav-height: 48px;
}

/* ---------- RESET ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-family);
  font-size: var(--font-body);
  line-height: 1.6;
  color: var(--color-dark);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--duration-fast); }
a:hover { color: var(--color-primary-hover); }
button { cursor: pointer; border: none; background: none; font-family: inherit; font-size: inherit; }
ul, ol { list-style: none; }
input, select, textarea { font-family: inherit; font-size: inherit; }
h1, h2, h3, h4 { letter-spacing: var(--letter-spacing-tight); line-height: 1.2; }

/* ---------- SKIP LINK ---------- */
.skip-link {
  position: absolute; top: -100%; left: 16px; z-index: 9999;
  padding: 8px 16px; background: var(--color-primary); color: var(--color-white);
  border-radius: var(--radius-sm); font-weight: var(--font-weight-semibold);
}
.skip-link:focus { top: 8px; }

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 32px; border-radius: var(--radius-full);
  font-weight: var(--font-weight-semibold); font-size: var(--font-body);
  transition: all var(--duration-fast) var(--ease-apple);
  white-space: nowrap;
}
.btn--primary {
  background: var(--color-primary); color: var(--color-white);
}
.btn--primary:hover { background: var(--color-primary-hover); transform: scale(1.02); }
.btn--primary:active { transform: scale(0.98); }
.btn--outline {
  background: transparent; color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}
.btn--outline:hover { background: var(--color-primary); color: var(--color-white); }
.btn--full { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; }

/* ---------- FOCUS ---------- */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ---------- NAVIGATION ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: var(--z-nav);
  height: var(--nav-height);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 0.5px solid rgba(0,0,0,0.1);
  transition: box-shadow var(--duration-fast), background var(--duration-fast);
}
.nav--scrolled { box-shadow: var(--shadow-sm); }
.nav__inner {
  max-width: var(--content-wide-width);
  margin: 0 auto; padding: 0 var(--content-padding);
  display: flex; align-items: center; justify-content: space-between;
  height: 100%;
}
.nav__logo {
  display: flex; align-items: center; gap: 6px;
  color: var(--color-dark); font-weight: var(--font-weight-bold); font-size: 1rem;
  text-decoration: none;
}
.nav__logo-icon { font-size: 1.4rem; }
.nav__logo-text { letter-spacing: var(--letter-spacing-tight); }

.nav__menu {
  display: flex; gap: 24px;
}
.nav__link {
  color: var(--color-gray-600); font-size: var(--font-small);
  font-weight: var(--font-weight-regular); text-decoration: none;
  padding: 4px 0; position: relative;
  transition: color var(--duration-fast);
}
.nav__link::after {
  content: ''; position: absolute; bottom: -2px; left: 0; right: 0;
  height: 2px; background: var(--color-primary); transform: scaleX(0);
  transition: transform var(--duration-fast) var(--ease-apple);
}
.nav__link:hover, .nav__link--active { color: var(--color-dark); }
.nav__link--active::after { transform: scaleX(1); }

.nav__lang {
  display: flex; gap: 4px;
}
.nav__lang-btn {
  padding: 4px 8px; border-radius: var(--radius-full);
  font-size: 0.75rem; font-weight: var(--font-weight-semibold);
  color: var(--color-gray-600); background: transparent;
  transition: all var(--duration-fast);
}
.nav__lang-btn:hover { color: var(--color-dark); }
.nav__lang-btn--active {
  background: var(--color-dark); color: var(--color-white);
}

.nav__hamburger {
  display: none; flex-direction: column; gap: 5px;
  width: 24px; padding: 4px 0;
}
.nav__hamburger-line {
  width: 100%; height: 1.5px; background: var(--color-dark);
  transition: all var(--duration-fast);
}
.nav__hamburger[aria-expanded="true"] .nav__hamburger-line:nth-child(1) { transform: rotate(45deg) translate(4px, 5px); }
.nav__hamburger[aria-expanded="true"] .nav__hamburger-line:nth-child(2) { opacity: 0; }
.nav__hamburger[aria-expanded="true"] .nav__hamburger-line:nth-child(3) { transform: rotate(-45deg) translate(4px, -5px); }

/* ---------- HERO ---------- */
.hero {
  position: relative; height: 100vh; min-height: 600px;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.hero__bg {
  position: absolute; inset: 0;
  background: url('https://images.unsplash.com/photo-1540541338287-41700207dee6?w=1920&q=80') center/cover no-repeat;
  background-attachment: fixed;
}
.hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.2) 0%, rgba(0,0,0,0.4) 60%, rgba(0,0,0,0.6) 100%);
}
.hero__content {
  position: relative; z-index: 1;
  text-align: center; color: var(--color-white);
  padding: 0 var(--content-padding);
}
.hero__subtitle {
  font-size: clamp(0.75rem, 1.2vw, 0.9rem);
  letter-spacing: 0.3em; color: var(--color-gold);
  font-weight: var(--font-weight-semibold);
  margin-bottom: 16px;
}
.hero__title {
  font-size: var(--font-hero); font-weight: var(--font-weight-bold);
  letter-spacing: var(--letter-spacing-tight);
  margin-bottom: 16px; text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.hero__tagline {
  font-size: var(--font-subtitle); font-weight: var(--font-weight-regular);
  opacity: 0.9; margin-bottom: 40px;
}
.hero__cta { font-size: 1.1rem; padding: 16px 40px; }
.hero__scroll {
  position: absolute; bottom: 32px; left: 50%; transform: translateX(-50%);
  color: var(--color-white); opacity: 0.7;
  animation: bounce 2s infinite;
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(10px); }
}

/* ---------- SECTION ---------- */
.section {
  padding: var(--section-padding) 0;
}
.section--gray { background: var(--color-gray-100); }
.section__inner {
  max-width: var(--content-wide-width);
  margin: 0 auto; padding: 0 var(--content-padding);
}
.section__title {
  font-size: var(--font-section-title); font-weight: var(--font-weight-bold);
  text-align: center; margin-bottom: 12px; color: var(--color-dark);
}
.section__title--light { color: var(--color-white); }
.section__subtitle {
  font-size: var(--font-subtitle); color: var(--color-gray-600);
  text-align: center; margin-bottom: 60px; font-weight: var(--font-weight-regular);
}
.section__subtitle--light { color: rgba(255,255,255,0.8); }

/* ---------- ABOUT ---------- */
.about__grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
  align-items: center; margin-bottom: 80px;
}
.about__grid--reverse { direction: rtl; }
.about__grid--reverse > * { direction: ltr; }
.about__image img {
  border-radius: var(--radius-lg); width: 100%;
  box-shadow: var(--shadow-md);
}
.about__story-title {
  font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: 20px;
  color: var(--color-dark);
}
.about__text p {
  color: var(--color-gray-600); margin-bottom: 16px; line-height: 1.8;
}
.about__stats {
  display: flex; justify-content: center; gap: clamp(32px, 6vw, 80px);
  padding: 48px 0; text-align: center;
}
.about__stat-number {
  font-size: clamp(2.5rem, 5vw, 3.5rem); font-weight: var(--font-weight-bold);
  color: var(--color-primary); letter-spacing: var(--letter-spacing-tight);
}
.about__stat-plus { font-size: 1.5rem; color: var(--color-primary); }
.about__stat-label {
  display: block; font-size: var(--font-small); color: var(--color-gray-600);
  margin-top: 4px;
}

/* ---------- ROOMS ---------- */
.rooms__grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px;
}
.room-card {
  background: var(--color-white); border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow-sm);
  transition: transform var(--duration-fast) var(--ease-apple), box-shadow var(--duration-fast);
}
.room-card:hover {
  transform: translateY(-6px); box-shadow: var(--shadow-card-hover);
}
.room-card__image {
  position: relative; overflow: hidden; aspect-ratio: 3/2;
}
.room-card__image img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform var(--duration-medium);
}
.room-card:hover .room-card__image img { transform: scale(1.05); }
.room-card__price {
  position: absolute; bottom: 12px; right: 12px;
  background: rgba(0,0,0,0.7); color: var(--color-white);
  padding: 6px 14px; border-radius: var(--radius-full);
  font-weight: var(--font-weight-semibold); font-size: var(--font-small);
  backdrop-filter: blur(8px);
}
.room-card__content { padding: 24px; }
.room-card__content h3 {
  font-size: 1.25rem; margin-bottom: 8px;
}
.room-card__meta {
  font-size: var(--font-small); color: var(--color-gray-600); margin-bottom: 12px;
}
.room-card__desc {
  color: var(--color-gray-600); margin-bottom: 16px; font-size: var(--font-small);
  line-height: 1.7; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.room-card__amenities {
  display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 20px;
}
.room-card__amenity {
  padding: 4px 10px; background: var(--color-gray-100);
  border-radius: var(--radius-full); font-size: 0.75rem; color: var(--color-gray-600);
}
.room-card .btn { width: 100%; }

/* Skeleton */
.room-card--skeleton { pointer-events: none; }
.skeleton { background: linear-gradient(90deg, var(--color-gray-100) 25%, var(--color-gray-200) 50%, var(--color-gray-100) 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: var(--radius-sm); }
.skeleton--image { aspect-ratio: 3/2; border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
.skeleton--text { height: 20px; margin: 16px 24px 8px; }
.skeleton--short { width: 60%; margin-bottom: 24px; }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

.rooms__error { text-align: center; padding: 48px 0; }
.rooms__error p { color: var(--color-gray-600); margin-bottom: 16px; }

/* ---------- FACILITIES ---------- */
.facilities__grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.facility-card {
  text-align: center; padding: 32px 20px;
  background: var(--color-white); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform var(--duration-fast) var(--ease-apple), box-shadow var(--duration-fast);
}
.facility-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.facility-card__icon {
  width: 48px; height: 48px; margin: 0 auto 16px;
  color: var(--color-primary);
}
.facility-card__icon svg { width: 100%; height: 100%; }
.facility-card__title {
  font-size: 1rem; font-weight: var(--font-weight-semibold); margin-bottom: 8px;
}
.facility-card__desc { font-size: var(--font-small); color: var(--color-gray-600); line-height: 1.6; }

/* ---------- DINING ---------- */
.dining {
  position: relative; padding: var(--section-padding) 0; overflow: hidden;
}
.dining__bg {
  position: absolute; inset: 0;
  background: url('https://images.unsplash.com/photo-1414235077428-338989a2e8c0?w=1920&q=80') center/cover no-repeat;
}
.dining__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0.6) 0%, rgba(0,0,0,0.75) 100%);
}
.dining__inner { position: relative; z-index: 1; }
.dining__desc {
  text-align: center; color: rgba(255,255,255,0.85);
  max-width: 700px; margin: -40px auto 48px; font-size: var(--font-body); line-height: 1.8;
}
.dining__cards {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  margin-bottom: 32px;
}
.glass-card {
  background: rgba(255,255,255,0.1); backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-lg); padding: 32px 24px;
  text-align: center; color: var(--color-white);
  transition: transform var(--duration-fast), background var(--duration-fast);
}
.glass-card:hover { background: rgba(255,255,255,0.18); transform: translateY(-4px); }
.dining__card-icon { font-size: 2.5rem; margin-bottom: 12px; }
.dining__card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.dining__card p { font-size: var(--font-small); opacity: 0.85; }
.dining__hours {
  text-align: center; color: var(--color-gold); font-size: var(--font-small);
  font-weight: var(--font-weight-semibold);
}

/* ---------- ATTRACTIONS ---------- */
.attractions__wrapper {
  position: relative; padding: 0 48px;
}
.attractions__track {
  display: flex; gap: 20px; overflow-x: auto; scroll-snap-type: x mandatory;
  padding: 8px 0 16px; -ms-overflow-style: none; scrollbar-width: none;
}
.attractions__track::-webkit-scrollbar { display: none; }
.attraction-card {
  flex: 0 0 300px; height: 400px; border-radius: var(--radius-lg);
  position: relative; overflow: hidden; scroll-snap-align: start;
  background: var(--bg) center/cover no-repeat;
  transition: transform var(--duration-fast);
}
.attraction-card:hover { transform: scale(1.02); }
.attraction-card__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(0,0,0,0.75) 100%);
}
.attraction-card__content {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 24px; color: var(--color-white);
}
.attraction-card__dist {
  display: inline-block; padding: 4px 12px;
  background: var(--color-primary); border-radius: var(--radius-full);
  font-size: 0.75rem; font-weight: var(--font-weight-semibold); margin-bottom: 8px;
}
.attraction-card__content h3 { font-size: 1.25rem; margin-bottom: 6px; }
.attraction-card__content p { font-size: var(--font-small); opacity: 0.85; }

.attractions__arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--glass-bg); backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-sm); color: var(--color-dark);
  transition: all var(--duration-fast); z-index: 2;
}
.attractions__arrow:hover { background: var(--color-white); box-shadow: var(--shadow-md); }
.attractions__arrow--prev { left: 0; }
.attractions__arrow--next { right: 0; }

/* ---------- GALLERY ---------- */
.gallery__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 200px;
  gap: 8px;
}
.gallery__item {
  border-radius: var(--radius-sm); overflow: hidden;
  position: relative; cursor: pointer;
}
.gallery__item--tall { grid-row: span 2; }
.gallery__item--wide { grid-column: span 2; }
.gallery__item img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform var(--duration-medium);
}
.gallery__item:hover img { transform: scale(1.05); }
.gallery__item-overlay {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.3); opacity: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--color-white);
  transition: opacity var(--duration-fast);
}
.gallery__item:hover .gallery__item-overlay { opacity: 1; }

/* ---------- LIGHTBOX ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: var(--z-lightbox);
  background: rgba(0,0,0,0.92); display: flex;
  align-items: center; justify-content: center;
  opacity: 0; transition: opacity var(--duration-fast);
}
.lightbox:not([hidden]) { opacity: 1; }
.lightbox[hidden] { display: none; }
.lightbox__close {
  position: absolute; top: 16px; right: 16px;
  color: var(--color-white); padding: 8px;
  opacity: 0.7; transition: opacity var(--duration-fast);
}
.lightbox__close:hover { opacity: 1; }
.lightbox__content { max-width: 90vw; max-height: 85vh; }
.lightbox__content img { max-width: 100%; max-height: 85vh; object-fit: contain; border-radius: var(--radius-sm); }
.lightbox__arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  color: var(--color-white); padding: 16px; opacity: 0.7;
  transition: opacity var(--duration-fast);
}
.lightbox__arrow:hover { opacity: 1; }
.lightbox__arrow--prev { left: 16px; }
.lightbox__arrow--next { right: 16px; }

/* ---------- REVIEWS ---------- */
.reviews__overview {
  display: flex; gap: 48px; align-items: center;
  max-width: 700px; margin: 0 auto 48px;
  padding: 32px; background: var(--color-white);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-sm);
}
.reviews__score { text-align: center; flex-shrink: 0; }
.reviews__score-number {
  font-size: 3rem; font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}
.reviews__score-total { font-size: 1.25rem; color: var(--color-gray-400); }
.reviews__score-count {
  display: block; font-size: var(--font-small); color: var(--color-gray-600); margin-top: 4px;
}
.reviews__bars { flex: 1; }
.reviews__bar-item {
  display: flex; align-items: center; gap: 12px; margin-bottom: 8px;
}
.reviews__bar-label { font-size: var(--font-small); color: var(--color-gray-600); width: 60px; flex-shrink: 0; }
.reviews__bar {
  flex: 1; height: 6px; background: var(--color-gray-200);
  border-radius: var(--radius-full); overflow: hidden;
}
.reviews__bar-fill {
  height: 100%; width: var(--pct); background: var(--color-primary);
  border-radius: var(--radius-full); transition: width 1s var(--ease-apple);
}
.reviews__bar-value { font-size: var(--font-small); font-weight: var(--font-weight-semibold); color: var(--color-dark); width: 28px; }

.reviews__carousel { overflow: hidden; margin-bottom: 32px; }
.reviews__track {
  display: flex; gap: 20px;
  overflow-x: auto; scroll-snap-type: x mandatory;
  padding: 8px 0 16px; -ms-overflow-style: none; scrollbar-width: none;
}
.reviews__track::-webkit-scrollbar { display: none; }
.review-card {
  flex: 0 0 320px; scroll-snap-align: start;
  background: var(--color-white); border-radius: var(--radius-lg);
  padding: 24px; box-shadow: var(--shadow-sm);
}
.review-card__header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.review-card__avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--color-primary); color: var(--color-white);
  display: flex; align-items: center; justify-content: center;
  font-weight: var(--font-weight-bold); font-size: 1rem;
}
.review-card__name { font-weight: var(--font-weight-semibold); font-size: var(--font-small); }
.review-card__date { font-size: 0.75rem; color: var(--color-gray-400); }
.review-card__stars { color: #fbbf24; font-size: 0.9rem; margin-bottom: 8px; }
.review-card__title { font-weight: var(--font-weight-semibold); margin-bottom: 6px; }
.review-card__content {
  font-size: var(--font-small); color: var(--color-gray-600); line-height: 1.6;
  display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden;
}
.reviews__actions { text-align: center; }

/* ---------- BOOKING ---------- */
.booking__container {
  display: grid; grid-template-columns: 1fr 380px; gap: 48px;
  align-items: start;
}
.booking__form { display: flex; flex-direction: column; gap: 20px; }
.booking__row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.booking__field { display: flex; flex-direction: column; gap: 6px; }
.booking__field label {
  font-size: var(--font-small); font-weight: var(--font-weight-semibold);
  color: var(--color-dark);
}
.booking__field input,
.booking__field select,
.booking__field textarea {
  padding: 12px 16px; border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-md); background: var(--color-white);
  color: var(--color-dark);
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
}
.booking__field input:focus,
.booking__field select:focus,
.booking__field textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0,113,227,0.15);
  outline: none;
}
.booking__field input.is-error,
.booking__field select.is-error,
.booking__field textarea.is-error {
  border-color: var(--color-error);
}

.booking__summary {
  position: sticky; top: calc(var(--nav-height) + 24px);
  background: var(--color-white); border-radius: var(--radius-lg);
  padding: 28px; box-shadow: var(--shadow-md);
}
.booking__summary h3 {
  font-size: 1.1rem; margin-bottom: 20px;
}
.booking__summary-body { margin-bottom: 24px; }
.booking__summary-row {
  display: flex; justify-content: space-between; padding: 8px 0;
  font-size: var(--font-small); color: var(--color-gray-600);
}
.booking__summary-row--total {
  font-size: 1.1rem; font-weight: var(--font-weight-bold);
  color: var(--color-dark);
}
.booking__summary hr {
  border: none; border-top: 1px solid var(--color-gray-200); margin: 4px 0;
}
.booking__pay-methods {
  text-align: center; font-size: 0.75rem; color: var(--color-gray-400);
  margin-top: 12px;
}

/* ---------- FOOTER ---------- */
.footer {
  position: relative; color: rgba(0,40,80,0.75);
  padding: 60px 0 0;
  background: url('../image/footer-ocean.jpg') center/cover no-repeat fixed;
}
.footer::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.72) 0%, rgba(230,245,255,0.80) 100%);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  z-index: 0;
}
.footer > * { position: relative; z-index: 1; }
.footer__inner {
  max-width: var(--content-wide-width);
  margin: 0 auto; padding: 0 var(--content-padding);
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
}
.footer__logo {
  display: flex; align-items: center; gap: 6px; margin-bottom: 20px;
}
.footer__logo-text {
  color: #0a3d6b; font-weight: var(--font-weight-bold); font-size: 1rem;
}
.footer__contact { font-style: normal; font-size: var(--font-small); line-height: 1.8; }
.footer__contact p { margin-bottom: 12px; }
.footer__contact strong { color: #0a3d6b; }
.footer__contact a { color: #0077b6; }
.footer h4 {
  color: #0a3d6b; font-size: var(--font-small);
  font-weight: var(--font-weight-semibold); margin-bottom: 16px;
}
.footer__links li { margin-bottom: 8px; }
.footer__links a { color: rgba(0,40,80,0.6); font-size: var(--font-small); }
.footer__links a:hover { color: #0077b6; }
.footer__social { display: flex; gap: 12px; }
.footer__social-link {
  width: 36px; height: 36px; border-radius: 50%;
  background: rgba(0,80,160,0.12); color: rgba(0,40,80,0.65);
  display: flex; align-items: center; justify-content: center;
  transition: all var(--duration-fast);
}
.footer__social-link svg { width: 18px; height: 18px; }
.footer__social-link:hover { background: rgba(0,80,160,0.22); color: #0077b6; }
.footer__wechat-qr { margin-top: 16px; }
.footer__wechat-qr p { color: rgba(0,40,80,0.6); font-size: var(--font-small); margin-bottom: 8px; }
.footer__wechat-qr img { border-radius: 8px; background: #fff; padding: 4px; box-shadow: 0 2px 8px rgba(0,40,80,0.1); }
.footer__bottom {
  text-align: center; padding: 24px 0; margin-top: 40px;
  border-top: 1px solid rgba(0,60,120,0.12);
  font-size: 0.75rem; color: rgba(0,40,80,0.45);
}

/* ---------- CHAT WIDGET ---------- */
.chat { position: fixed; bottom: 24px; right: 24px; z-index: var(--z-chat); }
.chat__fab {
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--color-primary); color: var(--color-white);
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: transform var(--duration-fast), background var(--duration-fast);
  animation: pulse 3s infinite;
}
.chat__fab:hover { background: var(--color-primary-hover); transform: scale(1.05); }
.chat__fab-close { display: none; }
.chat--open .chat__fab-icon { display: none; }
.chat--open .chat__fab-close { display: block; }
.chat--open .chat__fab { animation: none; }
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0,113,227,0.4), var(--shadow-lg); }
  50% { box-shadow: 0 0 0 12px rgba(0,113,227,0), var(--shadow-lg); }
}

.chat__bubble-hint {
  position: absolute; bottom: 68px; right: 0;
  background: var(--color-white); padding: 12px 16px;
  border-radius: var(--radius-md); box-shadow: var(--shadow-md);
  font-size: var(--font-small); white-space: nowrap;
  display: flex; align-items: center; gap: 8px;
}
.chat__bubble-hint[hidden] { display: none; }
.chat__bubble-close {
  font-size: 1.2rem; color: var(--color-gray-400);
  line-height: 1;
}

.chat__panel {
  position: absolute; bottom: 72px; right: 0;
  width: 380px; height: 520px;
  background: var(--color-white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  display: flex; flex-direction: column;
  overflow: hidden;
  transform: scale(0.9) translateY(20px); opacity: 0;
  transition: transform var(--duration-fast) var(--ease-apple), opacity var(--duration-fast);
}
.chat__panel:not([hidden]) { transform: scale(1) translateY(0); opacity: 1; }
.chat__panel[hidden] { display: none; }

.chat__header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px;
  background: var(--color-primary); color: var(--color-white);
}
.chat__header-info { display: flex; align-items: center; gap: 10px; }
.chat__avatar { font-size: 1.5rem; }
.chat__header-info strong { font-size: var(--font-small); }
.chat__status { display: flex; align-items: center; gap: 4px; font-size: 0.75rem; opacity: 0.85; }
.chat__status-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--color-success);
}
.chat__close { color: var(--color-white); padding: 4px; opacity: 0.8; }
.chat__close:hover { opacity: 1; }

.chat__messages {
  flex: 1; overflow-y: auto; padding: 16px;
  display: flex; flex-direction: column; gap: 12px;
}
.chat__msg {
  max-width: 85%; padding: 10px 16px;
  border-radius: var(--radius-lg); font-size: var(--font-small);
  line-height: 1.5; animation: msgIn var(--duration-fast) var(--ease-apple);
}
@keyframes msgIn { from { opacity: 0; transform: translateY(8px); } }
.chat__msg--ai {
  background: var(--color-gray-100); color: var(--color-dark);
  align-self: flex-start; border-bottom-left-radius: 4px;
}
.chat__msg--user {
  background: var(--color-primary); color: var(--color-white);
  align-self: flex-end; border-bottom-right-radius: 4px;
}
.chat__msg--typing {
  background: var(--color-gray-100); align-self: flex-start;
  border-bottom-left-radius: 4px; padding: 14px 20px;
}
.chat__typing-dots { display: flex; gap: 4px; }
.chat__typing-dots span {
  width: 6px; height: 6px; border-radius: 50%; background: var(--color-gray-400);
  animation: typingDot 1.2s infinite;
}
.chat__typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.chat__typing-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typingDot {
  0%, 60%, 100% { opacity: 0.3; transform: translateY(0); }
  30% { opacity: 1; transform: translateY(-4px); }
}

.chat__quick {
  display: flex; gap: 6px; padding: 8px 16px; overflow-x: auto;
  border-top: 1px solid var(--color-gray-200);
}
.chat__quick-btn {
  padding: 6px 14px; border-radius: var(--radius-full);
  background: var(--color-gray-100); color: var(--color-primary);
  font-size: 0.75rem; font-weight: var(--font-weight-semibold);
  white-space: nowrap;
  transition: background var(--duration-fast);
}
.chat__quick-btn:hover { background: rgba(0,113,227,0.1); }

.chat__input-area {
  display: flex; gap: 8px; padding: 12px 16px;
  border-top: 1px solid var(--color-gray-200);
}
.chat__input {
  flex: 1; padding: 10px 16px; border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-full); outline: none;
  transition: border-color var(--duration-fast);
}
.chat__input:focus { border-color: var(--color-primary); }
.chat__send {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--color-primary); color: var(--color-white);
  display: flex; align-items: center; justify-content: center;
  transition: background var(--duration-fast);
}
.chat__send:hover { background: var(--color-primary-hover); }
.chat__send:disabled { opacity: 0.5; }

/* ---------- FEEDBACK MODAL ---------- */
.feedback-modal {
  border: none; border-radius: var(--radius-xl);
  padding: 0; max-width: 500px; width: 90vw;
  box-shadow: var(--shadow-lg);
}
.feedback-modal::backdrop { background: rgba(0,0,0,0.5); backdrop-filter: blur(4px); }
.feedback-modal__inner { padding: 32px; }
.feedback-modal__inner h2 { font-size: 1.5rem; margin-bottom: 24px; text-align: center; }
.feedback-modal__form { display: flex; flex-direction: column; gap: 16px; }
.feedback-modal__rating { text-align: center; margin-bottom: 8px; }
.feedback-modal__rating-label {
  display: block; font-size: var(--font-small); color: var(--color-gray-600); margin-bottom: 8px;
}
.feedback-modal__stars { display: flex; justify-content: center; gap: 8px; }
.feedback-modal__star {
  font-size: 2rem; color: var(--color-gray-200);
  transition: color var(--duration-fast), transform var(--duration-fast);
  padding: 0;
}
.feedback-modal__star:hover,
.feedback-modal__star.active { color: #fbbf24; }
.feedback-modal__star:hover { transform: scale(1.15); }

.feedback-modal__field { display: flex; flex-direction: column; gap: 4px; }
.feedback-modal__field label { font-size: var(--font-small); font-weight: var(--font-weight-semibold); }
.feedback-modal__field input,
.feedback-modal__field textarea {
  padding: 10px 14px; border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius-md); transition: border-color var(--duration-fast);
}
.feedback-modal__field input:focus,
.feedback-modal__field textarea:focus {
  border-color: var(--color-primary); outline: none;
  box-shadow: 0 0 0 3px rgba(0,113,227,0.15);
}
.feedback-modal__actions {
  display: flex; gap: 12px; justify-content: flex-end; margin-top: 8px;
}
.feedback-modal__success {
  text-align: center; padding: 32px 0;
}
.feedback-modal__check {
  width: 64px; height: 64px; border-radius: 50%;
  background: var(--color-success); color: var(--color-white);
  font-size: 2rem; display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
  animation: checkPop var(--duration-fast) var(--ease-bounce);
}
@keyframes checkPop { from { transform: scale(0); } }
.feedback-modal__success p { font-size: 1.1rem; font-weight: var(--font-weight-semibold); }

/* ---------- BACK TO TOP ---------- */
.back-to-top {
  position: fixed; bottom: 24px; left: 24px; z-index: var(--z-chat);
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--glass-bg); backdrop-filter: blur(8px);
  color: var(--color-dark); box-shadow: var(--shadow-sm);
  display: flex; align-items: center; justify-content: center;
  transition: all var(--duration-fast);
  opacity: 0; transform: translateY(20px);
}
.back-to-top:not([hidden]) { opacity: 1; transform: translateY(0); }
.back-to-top[hidden] { display: none; }
.back-to-top:hover { background: var(--color-white); box-shadow: var(--shadow-md); }

/* ---------- TOAST ---------- */
.toast {
  position: fixed; top: 16px; left: 50%; transform: translateX(-50%) translateY(-100%);
  z-index: var(--z-toast);
  padding: 12px 24px; border-radius: var(--radius-full);
  background: var(--color-dark); color: var(--color-white);
  font-size: var(--font-small); font-weight: var(--font-weight-semibold);
  box-shadow: var(--shadow-lg);
  transition: transform var(--duration-fast) var(--ease-apple);
  white-space: nowrap;
}
.toast:not([hidden]) { transform: translateX(-50%) translateY(0); }
.toast[hidden] { display: none; }
.toast--error { background: var(--color-error); }
.toast--success { background: var(--color-success); }

/* ---------- OFFLINE BAR ---------- */
.offline-bar {
  position: fixed; top: 0; left: 0; right: 0; z-index: calc(var(--z-toast) + 1);
  background: var(--color-error); color: var(--color-white);
  text-align: center; padding: 6px; font-size: var(--font-small);
  font-weight: var(--font-weight-semibold);
}
.offline-bar[hidden] { display: none; }

/* ---------- LOADING OVERLAY ---------- */
.loading-overlay {
  position: fixed; inset: 0; z-index: calc(var(--z-lightbox) + 1);
  background: rgba(255,255,255,0.9); backdrop-filter: blur(8px);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 20px;
}
.loading-overlay[hidden] { display: none; }
.loading-overlay__spinner {
  width: 40px; height: 40px; border-radius: 50%;
  border: 3px solid var(--color-gray-200);
  border-top-color: var(--color-primary);
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-overlay p {
  font-weight: var(--font-weight-semibold); color: var(--color-gray-600);
}

/* ---------- ANIMATIONS ---------- */
.anim-fade-up {
  opacity: 0; transform: translateY(40px);
  transition: opacity var(--duration-medium) var(--ease-apple), transform var(--duration-medium) var(--ease-apple);
}
.anim-fade-up.is-visible { opacity: 1; transform: translateY(0); }

.hero .anim-fade-up:nth-child(1) { transition-delay: 0.2s; }
.hero .anim-fade-up:nth-child(2) { transition-delay: 0.4s; }
.hero .anim-fade-up:nth-child(3) { transition-delay: 0.6s; }
.hero .anim-fade-up:nth-child(4) { transition-delay: 0.8s; }

.facility-card.anim-fade-up { transition-delay: calc(var(--i, 0) * 0.08s); }
.dining__card.anim-fade-up { transition-delay: calc(var(--i, 0) * 0.12s); }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1024px) {
  .nav__menu { display: none; }
  .nav__hamburger { display: flex; }
  .nav__menu.is-open {
    display: flex; flex-direction: column;
    position: fixed; top: var(--nav-height); left: 0; right: 0; bottom: 0;
    background: var(--glass-bg); backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    padding: 32px var(--content-padding); gap: 0;
    animation: slideDown var(--duration-fast) var(--ease-apple);
  }
  @keyframes slideDown { from { opacity: 0; transform: translateY(-10px); } }
  .nav__menu.is-open .nav__link {
    font-size: 1.25rem; padding: 16px 0;
    border-bottom: 1px solid var(--color-gray-200);
  }
  .about__grid { grid-template-columns: 1fr; gap: 32px; }
  .about__grid--reverse { direction: ltr; }
  .rooms__grid { grid-template-columns: 1fr; }
  .facilities__grid { grid-template-columns: repeat(2, 1fr); }
  .dining__cards { grid-template-columns: repeat(2, 1fr); }
  .booking__container { grid-template-columns: 1fr; }
  .booking__summary { position: static; }
  .footer__inner { grid-template-columns: 1fr 1fr; }
  .gallery__grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 180px; }
  .gallery__item--wide { grid-column: span 1; }
  .reviews__overview { flex-direction: column; gap: 24px; text-align: center; }
}

@media (max-width: 767px) {
  :root { --nav-height: 48px; }
  .hero__bg { background-attachment: scroll; }
  .about__stats { flex-wrap: wrap; gap: 24px; }
  .about__stat { flex: 0 0 calc(50% - 12px); }
  .facilities__grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .dining__cards { grid-template-columns: 1fr; }
  .attraction-card { flex: 0 0 260px; height: 340px; }
  .attractions__wrapper { padding: 0; }
  .attractions__arrow { display: none; }
  .gallery__grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 150px; }
  .gallery__item--tall { grid-row: span 1; }
  .review-card { flex: 0 0 280px; }
  .booking__row { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr; }
  .chat__panel {
    position: fixed; inset: 0; bottom: 0; right: 0;
    width: 100%; height: 100%; border-radius: 0;
  }
  .chat__panel:not([hidden]) + .chat__fab { display: none; }
}

@media (max-width: 480px) {
  .hero__cta { width: 100%; text-align: center; }
  .facilities__grid { grid-template-columns: 1fr 1fr; }
  .facility-card { padding: 20px 12px; }
  .gallery__grid { grid-template-columns: 1fr 1fr; grid-auto-rows: 130px; }
}

/* ---------- REDUCED MOTION ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
  .anim-fade-up { opacity: 1; transform: none; }
  .hero__bg { background-attachment: scroll; }
}

/* ---------- DARK MODE ---------- */
@media (prefers-color-scheme: dark) {
  :root {
    --color-dark: #f5f5f7;
    --color-gray-100: #1c1c1e;
    --color-gray-200: #2c2c2e;
    --color-gray-400: #8e8e93;
    --color-gray-600: #aeaeb2;
    --color-gray-900: #f5f5f7;
    --color-white: #000000;
    --glass-bg: rgba(28,28,30,0.72);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.5);
  }
  body { background: #000; color: #f5f5f7; }
  .room-card, .facility-card, .review-card, .booking__summary,
  .reviews__overview, .feedback-modal { background: #1c1c1e; }
  .chat__panel { background: #1c1c1e; }
  .chat__msg--ai { background: #2c2c2e; color: #f5f5f7; }
  .chat__quick-btn { background: #2c2c2e; }
  .booking__field input, .booking__field select, .booking__field textarea,
  .feedback-modal__field input, .feedback-modal__field textarea,
  .chat__input {
    background: #2c2c2e; border-color: #3a3a3c; color: #f5f5f7;
  }
  .footer::before { background: linear-gradient(180deg, rgba(20,30,40,0.82) 0%, rgba(10,20,35,0.88) 100%); backdrop-filter: blur(6px); }
  .footer, .footer__contact, .footer__links a, .footer__wechat-qr p { color: rgba(255,255,255,0.7); }
  .footer__logo-text, .footer__contact strong, .footer h4 { color: #f5f5f7; }
  .footer__contact a { color: var(--color-gold); }
  .footer__links a:hover { color: #f5f5f7; }
  .footer__social-link { background: rgba(255,255,255,0.1); color: rgba(255,255,255,0.7); }
  .footer__social-link:hover { background: rgba(255,255,255,0.2); color: #f5f5f7; }
  .footer__bottom { border-top-color: rgba(255,255,255,0.1); color: rgba(255,255,255,0.4); }
}

/* ---------- PRINT ---------- */
@media print {
  .nav, .chat, .back-to-top, .toast, .offline-bar, .loading-overlay,
  .hero__scroll, .lightbox, .feedback-modal { display: none !important; }
  body { color: #000; background: #fff; }
  .hero { height: auto; min-height: 0; padding: 40px 0; }
  .hero__bg, .hero__overlay, .dining__bg, .dining__overlay { display: none; }
  .hero__content, .dining__inner { color: #000; }
  .section { padding: 24px 0; break-inside: avoid; }
  .booking__summary { box-shadow: none; border: 1px solid #ccc; }
  a { color: #000; }
  a[href]::after { content: " (" attr(href) ")"; font-size: 0.8rem; }
}