/* ============================================================
   PHÚC TRAVEL – style.css
   Xe Du Lịch Đà Nẵng
   ============================================================ */

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

:root {
  --primary:        #0F4C81;
  --primary-dark:   #0a3560;
  --primary-light:  #1a6ab5;
  --secondary:      #00AEEF;
  --secondary-dark: #0090c9;
  --accent:         #FFD166;
  --accent-dark:    #f5b800;
  --white:          #FFFFFF;
  --bg:             #F8FAFF;
  --bg-dark:        #EEF3FB;
  --text:           #1a2340;
  --text-muted:     #64748b;
  --text-light:     #94a3b8;
  --border:         #e2e8f0;
  --shadow-sm:      0 1px 3px rgba(15,76,129,.08), 0 1px 2px rgba(15,76,129,.06);
  --shadow:         0 4px 16px rgba(15,76,129,.12);
  --shadow-lg:      0 12px 40px rgba(15,76,129,.18);
  --shadow-xl:      0 24px 64px rgba(15,76,129,.22);
  --radius-sm:      6px;
  --radius:         12px;
  --radius-lg:      20px;
  --radius-xl:      28px;
  --transition:     .3s cubic-bezier(.4,0,.2,1);
  --header-h:       80px;
  --zalo-green:     #06C755;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', 'Poppins', sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a  { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── TYPOGRAPHY ── */
h1, h2, h3, h4, h5 {
  font-family: 'Poppins', sans-serif;
  line-height: 1.2;
  font-weight: 700;
}

/* ── SECTION SHARED ── */
.section { padding: 96px 0; }

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 60px;
}

.section-eyebrow {
  display: inline-block;
  font-family: 'Poppins', sans-serif;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--secondary);
  background: rgba(0,174,239,.1);
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.6rem);
  color: var(--primary);
  margin-bottom: 16px;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: var(--radius);
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: .95rem;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-lg { padding: 16px 34px; font-size: 1.05rem; border-radius: var(--radius-lg); }
.btn-sm { padding: 8px 18px; font-size: .85rem; }

.btn-primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(15,76,129,.35);
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(15,76,129,.45);
}

.btn-zalo {
  background: var(--zalo-green);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(255, 255, 255, 0.35);
}
.btn-zalo:hover {
  background: #f3f3f3;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(6,199,85,.45);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-outline:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-outline-primary {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-outline-primary:hover {
  background: var(--primary);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-gold {
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: var(--primary-dark);
  box-shadow: 0 4px 20px rgba(255,209,102,.45);
}
.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(255,209,102,.55);
}

.btn-block { width: 100%; justify-content: center; }


/* ============================================================
   HEADER
   ============================================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition), height var(--transition);
}

.header.scrolled {
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 2px 20px rgba(15,76,129,.1);
  height: 68px;
}

.header-inner {
  display: flex;
  align-items: center;
  height: 100%;
  gap: 20px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-icon {
  font-size: 2rem;
  line-height: 1;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.logo-name {
  font-family: 'Poppins', sans-serif;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--white);
  letter-spacing: .03em;
  transition: color var(--transition);
}

.logo-tagline {
  font-size: .65rem;
  font-weight: 500;
  color: rgba(255,255,255,.75);
  letter-spacing: .04em;
  text-transform: uppercase;
  transition: color var(--transition);
}

.header.scrolled .logo-name  { color: var(--primary); }
.header.scrolled .logo-tagline { color: var(--text-muted); }

/* Nav */
.nav { margin-left: auto; }

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-family: 'Poppins', sans-serif;
  font-size: .9rem;
  font-weight: 500;
  color: rgba(255,255,255,.9);
  transition: var(--transition);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: calc(100% - 28px);
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transition: transform var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after { transform: translateX(-50%) scaleX(1); }

.nav-link:hover,
.nav-link.active { color: var(--white); }

.header.scrolled .nav-link { color: var(--text-muted); }
.header.scrolled .nav-link:hover,
.header.scrolled .nav-link.active { color: var(--primary); }

/* Hotline button */
.btn-hotline {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--accent);
  color: var(--primary-dark);
  padding: 8px 18px;
  border-radius: var(--radius);
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  transition: var(--transition);
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(255,209,102,.4);
}

.btn-hotline:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,209,102,.55);
  background: var(--accent-dark);
}

.hotline-icon { font-size: 1.2rem; }
.hotline-label { display: block; font-size: .65rem; font-weight: 500; text-transform: uppercase; letter-spacing: .06em; }
.hotline-number { display: block; font-size: .95rem; font-weight: 800; line-height: 1; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  margin-left: auto;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

.header.scrolled .hamburger span { background: var(--primary); }

.hamburger.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }


/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  height: 100vh;
  min-height: 640px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

/* Slideshow */
.hero-slides {
  position: absolute;
  inset: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1.2s ease;
}

.hero-slide.active { opacity: 1; }

/* Overlay – deep gradient for text legibility */
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(10,40,80,.82) 0%,
    rgba(15,76,129,.58) 50%,
    rgba(0,174,239,.18) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 820px;
  padding-top: var(--header-h);
}

.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,.15);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,.3);
  color: var(--white);
  padding: 7px 18px;
  border-radius: 100px;
  font-size: .85rem;
  font-weight: 500;
  margin-bottom: 24px;
  letter-spacing: .02em;
}

.hero-title {
  font-family: 'Poppins', sans-serif;
  font-size: clamp(2.2rem, 6vw, 4.2rem);
  font-weight: 900;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 20px;
  text-shadow: 0 2px 20px rgba(0,0,0,.3);
  letter-spacing: -.01em;
}

.hero-title-accent {
  color: var(--accent);
  display: block;
}

.hero-desc {
  font-size: clamp(.95rem, 2vw, 1.15rem);
  color: rgba(255,255,255,.88);
  line-height: 1.75;
  margin-bottom: 36px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

/* Stats */
.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
  background: rgba(255,255,255,.12);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: var(--radius-lg);
  padding: 16px 28px;
  display: inline-flex;
}

.hero-stat {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 20px;
}

.hero-stat:first-child { padding-left: 0; }
.hero-stat:last-child  { padding-right: 0; }

.stat-icon { font-size: 1.4rem; }

.hero-stat strong {
  display: block;
  font-family: 'Poppins', sans-serif;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--white);
  line-height: 1.1;
}

.hero-stat span {
  display: block;
  font-size: .78rem;
  color: rgba(255,255,255,.75);
  font-weight: 500;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,.25);
}

/* Hero nav dots */
.hero-dots {
  position: absolute;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 3;
}

.hero-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,.4);
  transition: var(--transition);
  border: none;
}

.hero-dot.active {
  background: var(--accent);
  width: 28px;
  border-radius: 5px;
}

/* Scroll hint */
.hero-scroll-hint {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  z-index: 3;
  color: rgba(255,255,255,.65);
  font-size: .75rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid rgba(255,255,255,.6);
  border-bottom: 2px solid rgba(255,255,255,.6);
  transform: rotate(45deg);
  animation: scrollBounce 2s ease infinite;
}

@keyframes scrollBounce {
  0%, 100% { transform: rotate(45deg) translate(0,0); opacity: 1; }
  50%       { transform: rotate(45deg) translate(4px,4px); opacity: .5; }
}

/* Fade-up animation */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp .8s ease forwards;
}

.fade-up:nth-child(1) { animation-delay: .2s; }
.fade-up:nth-child(2) { animation-delay: .4s; }
.fade-up:nth-child(3) { animation-delay: .6s; }
.fade-up:nth-child(4) { animation-delay: .8s; }
.fade-up:nth-child(5) { animation-delay: 1s; }

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


/* ============================================================
   TRUST BAR
   ============================================================ */
.trust-bar {
  background: var(--primary);
  padding: 0;
  overflow: hidden;
}

.trust-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0;
  padding-top: 0;
  padding-bottom: 0;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 16px;
  color: rgba(255,255,255,.9);
  font-family: 'Poppins', sans-serif;
  font-weight: 500;
  font-size: .9rem;
  border-right: 1px solid rgba(255,255,255,.12);
  flex: 1;
  justify-content: center;
  white-space: nowrap;
  transition: background var(--transition);
}

.trust-item:last-child { border-right: none; }
.trust-item:hover { background: rgba(255,255,255,.06); }

.trust-icon { font-size: 1.2rem; }


/* ============================================================
   SERVICES
   ============================================================ */
.services { background: var(--bg); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--border);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.service-img {
  height: 200px;
  background-size: cover;
  background-position: center;
  transition: transform .6s ease;
}

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

/* Clip overflow for zoom */
.service-card { overflow: hidden; }

.service-body {
  padding: 24px;
}

.service-icon {
  font-size: 2rem;
  margin-bottom: 12px;
  display: block;
}

.service-body h3 {
  font-size: 1.1rem;
  color: var(--primary);
  margin-bottom: 8px;
}

.service-body p {
  color: var(--text-muted);
  font-size: .9rem;
  line-height: 1.6;
  margin-bottom: 18px;
}


/* ============================================================
   DESTINATIONS
   ============================================================ */
.destinations { background: var(--white); }

.destinations-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: 20px;
}

.dest-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
}

.dest-large {
  grid-column: 1 / 2;
  grid-row: 1 / 3;
}

.dest-img {
  width: 100%;
  height: 100%;
  min-height: 220px;
  background-size: cover;
  background-position: center;
  transition: transform .6s ease;
}

.dest-large .dest-img { min-height: 460px; }

.dest-card:hover .dest-img { transform: scale(1.07); }

.dest-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px 20px 20px;
  background: linear-gradient(to top, rgba(10,30,60,.85) 0%, transparent 100%);
  color: var(--white);
}

.dest-tag {
  display: inline-block;
  background: var(--accent);
  color: var(--primary-dark);
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: 3px 10px;
  border-radius: 100px;
  margin-bottom: 6px;
}

.dest-info h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.dest-info p {
  font-size: .82rem;
  color: rgba(255,255,255,.8);
}


/* ============================================================
   PRICING
   ============================================================ */
.pricing { background: var(--bg); }

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 28px;
}

.pricing-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 24px 28px;
  border: 2px solid var(--border);
  transition: var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.pricing-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.pricing-featured {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-8px);
}

.pricing-featured:hover { transform: translateY(-14px); }

.pricing-limo { border-color: var(--accent); }
.pricing-limo:hover { border-color: var(--accent-dark); }

.pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: var(--white);
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: 5px 16px;
  border-radius: 100px;
  white-space: nowrap;
}

.pricing-header {
  text-align: center;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.car-emoji {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 10px;
}

.pricing-header h3 {
  font-size: 1.15rem;
  color: var(--primary);
  margin-bottom: 4px;
}

.car-type {
  font-size: .78rem;
  color: var(--text-muted);
}

.pricing-body {
  flex: 1;
  margin-bottom: 24px;
}

.price-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 0;
  border-bottom: 1px dashed var(--border);
  font-size: .88rem;
  gap: 8px;
}

.price-row:last-child { border-bottom: none; }
.price-row span { color: var(--text-muted); }
.price-row strong { color: var(--primary); font-weight: 700; white-space: nowrap; }

.pricing-featured .price-row strong { color: var(--primary-dark); }
.pricing-limo .price-row strong { color: #a67c00; }

.pricing-note {
  text-align: center;
  color: var(--text-muted);
  font-size: .88rem;
  padding: 16px 20px;
  background: rgba(15,76,129,.05);
  border-radius: var(--radius);
  border-left: 4px solid var(--secondary);
  text-align: left;
}

.pricing-note strong { color: var(--primary); }


/* ============================================================
   GALLERY
   ============================================================ */
.gallery-section { background: var(--white); }

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 220px;
  gap: 16px;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
}

.gallery-item:nth-child(1) { grid-column: 1 / 3; grid-row: 1 / 3; }
.gallery-item:nth-child(5) { grid-column: 3 / 5; }

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

.gallery-item:hover img { transform: scale(1.07); }

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: rgba(15,76,129,.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}

.gallery-overlay span { font-size: 2rem; }
.gallery-item:hover .gallery-overlay { opacity: 1; }

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(5,15,40,.95);
  display: none;
  align-items: center;
  justify-content: center;
}

.lightbox.open { display: flex; }

.lightbox-img-wrap {
  max-width: 90vw;
  max-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-img-wrap img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius);
  box-shadow: var(--shadow-xl);
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: absolute;
  background: rgba(255,255,255,.12);
  color: var(--white);
  border: 1px solid rgba(255,255,255,.2);
  width: 46px;
  height: 46px;
  border-radius: 50%;
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  backdrop-filter: blur(4px);
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
  background: rgba(255,255,255,.25);
}

.lightbox-close { top: 20px; right: 24px; font-size: 1rem; }
.lightbox-prev  { left: 20px; top: 50%; transform: translateY(-50%); }
.lightbox-next  { right: 20px; top: 50%; transform: translateY(-50%); }


/* ============================================================
   TESTIMONIALS
   ============================================================ */
.testimonials {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  overflow: hidden;
}

.testimonials .section-eyebrow {
  background: rgba(255,255,255,.15);
  color: var(--accent);
}

.testimonials .section-title { color: var(--white); }
.testimonials .section-desc  { color: rgba(255,255,255,.75); }

.testimonial-slider-wrap { position: relative; }

.testimonial-slider {
  display: flex;
  gap: 24px;
  transition: transform .5s cubic-bezier(.4,0,.2,1);
}

.testimonial-card {
  flex: 0 0 calc(33.333% - 16px);
  background: rgba(255,255,255,.08);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: var(--transition);
}

.testimonial-card:hover {
  background: rgba(255,255,255,.13);
  transform: translateY(-4px);
}

.stars {
  font-size: 1.1rem;
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.review-text {
  color: rgba(255,255,255,.88);
  font-size: .95rem;
  line-height: 1.75;
  margin-bottom: 24px;
  font-style: italic;
}

.reviewer {
  display: flex;
  align-items: center;
  gap: 14px;
}

.reviewer-avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--primary-dark);
  font-family: 'Poppins', sans-serif;
  font-weight: 800;
  font-size: .9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.reviewer-info strong {
  display: block;
  color: var(--white);
  font-size: .95rem;
  margin-bottom: 2px;
}

.reviewer-info span {
  font-size: .8rem;
  color: rgba(255,255,255,.65);
}

/* Slider controls */
.slider-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-top: 36px;
}

.slider-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.2);
  color: var(--white);
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.slider-btn:hover {
  background: var(--accent);
  color: var(--primary-dark);
  border-color: var(--accent);
}

.slider-dots {
  display: flex;
  gap: 8px;
  align-items: center;
}

.slider-dot-btn {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,.35);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  padding: 0;
}

.slider-dot-btn.active {
  background: var(--accent);
  width: 24px;
  border-radius: 4px;
}


/* ============================================================
   FAQ
   ============================================================ */
.faq-section { background: var(--bg); }

.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
}

.faq-item.open {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  text-align: left;
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: .95rem;
  color: var(--primary);
  transition: var(--transition);
}

.faq-question:hover { background: var(--bg); }
.faq-item.open .faq-question { background: rgba(15,76,129,.04); }

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--primary);
  flex-shrink: 0;
  transition: var(--transition);
}

.faq-item.open .faq-icon {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease, padding .3s ease;
}

.faq-answer.open {
  max-height: 400px;
  padding-bottom: 4px;
}

.faq-answer p {
  padding: 0 24px 20px;
  color: var(--text-muted);
  font-size: .92rem;
  line-height: 1.75;
}

.faq-answer strong { color: var(--primary); }


/* ============================================================
   CONTACT
   ============================================================ */
.contact-section { background: var(--white); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 56px;
  align-items: start;
}

/* Left info */
.contact-brand {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
}

.contact-logo { font-size: 3rem; }

.contact-brand h3 {
  font-size: 1.5rem;
  color: var(--primary);
}

.contact-brand p {
  color: var(--text-muted);
  font-size: .9rem;
}

.contact-hotline {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: var(--radius-lg);
  padding: 24px 28px;
  margin-bottom: 28px;
  color: var(--white);
}

.hotline-big {
  display: block;
  font-family: 'Poppins', sans-serif;
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 6px;
  letter-spacing: .01em;
}

.contact-hotline p {
  opacity: .85;
  font-size: .9rem;
}

.contact-channels {
  display: flex;
  gap: 12px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.channel-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius);
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: .9rem;
  transition: var(--transition);
  flex: 1;
  justify-content: center;
  border: 2px solid transparent;
}

.btn-call {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(15,76,129,.3);
}
.btn-call:hover { background: var(--primary-dark); transform: translateY(-2px); }

.btn-zalo-ch {
  background: var(--zalo-green);
  color: var(--white);
  box-shadow: 0 4px 14px rgba(6,199,85,.3);
}
.btn-zalo-ch:hover { background: #ffffff; transform: translateY(-2px); }

.btn-messenger {
  background: #0084ff;
  color: var(--white);
  box-shadow: 0 4px 14px rgba(0,132,255,.3);
}
.btn-messenger:hover { background: #006fce; transform: translateY(-2px); }

.contact-features { display: flex; flex-direction: column; gap: 10px; }

.cf-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .92rem;
  color: var(--text-muted);
}

/* Form */
.contact-form-wrap {
  background: var(--bg);
  border-radius: var(--radius-xl);
  padding: 40px;
  border: 1px solid var(--border);
}

.contact-form h3 {
  font-size: 1.3rem;
  color: var(--primary);
  margin-bottom: 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 0;
}

.form-group label {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: .83rem;
  color: var(--text);
  letter-spacing: .02em;
}

.form-group input,
.form-group textarea {
  padding: 13px 16px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-family: 'Inter', sans-serif;
  font-size: .92rem;
  color: var(--text);
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--secondary);
  box-shadow: 0 0 0 4px rgba(0,174,239,.12);
}

.form-group textarea { resize: vertical; min-height: 80px; }

.form-success {
  text-align: center;
  padding: 40px 20px;
}

.success-icon { font-size: 3rem; display: block; margin-bottom: 12px; }

.form-success h4 {
  font-size: 1.2rem;
  color: var(--primary);
  margin-bottom: 8px;
}

.form-success p {
  color: var(--text-muted);
  line-height: 1.7;
}

.form-success a { color: var(--primary); font-weight: 700; }


/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--primary-dark);
  padding-top: 72px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}

.logo-white .logo-name  { color: var(--white); }
.logo-white .logo-tagline { color: rgba(255,255,255,.6); }

.footer-desc {
  color: rgba(255,255,255,.65);
  font-size: .9rem;
  line-height: 1.7;
  margin-top: 16px;
  margin-bottom: 20px;
}

.footer-phone {
  display: inline-block;
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--accent);
  transition: var(--transition);
}

.footer-phone:hover { color: var(--accent-dark); }

.footer-links h4 {
  font-size: .9rem;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: .1em;
  margin-bottom: 20px;
  font-weight: 700;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: rgba(255,255,255,.6);
  font-size: .88rem;
  transition: color var(--transition);
}

.footer-links a:hover { color: var(--accent); }

.footer-bottom {
  padding: 22px 0;
}

.footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-bottom p {
  font-size: .82rem;
  color: rgba(255,255,255,.45);
}

.footer-bottom a {
  color: var(--accent);
  font-weight: 600;
}


/* ============================================================
   BACK TO TOP
   ============================================================ */
.back-to-top {
  position: fixed;
  bottom: 100px;
  right: 24px;
  z-index: 900;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}


/* ============================================================
   FLOATING CTA
   ============================================================ */
.float-cta {
  position: fixed;
  bottom: 28px;
  right: 24px;
  z-index: 900;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.float-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
}

.float-call {
  background: var(--primary);
  animation: ringPulse 2.5s ease infinite;
}

.float-zalo {
  background: var(--zalo-green);
}

.float-btn:hover {
  transform: scale(1.15);
  box-shadow: var(--shadow-xl);
}

@keyframes ringPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(15,76,129,.5); }
  50%       { box-shadow: 0 0 0 12px rgba(15,76,129,0); }
}


/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity .7s ease, transform .7s ease;
}

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


/* ============================================================
   RESPONSIVE – TABLET (max 1024px)
   ============================================================ */
@media (max-width: 1024px) {
  .services-grid    { grid-template-columns: repeat(2, 1fr); }
  .destinations-grid { grid-template-columns: repeat(2, 1fr); }
  .dest-large { grid-column: 1 / 3; grid-row: auto; }
  .dest-large .dest-img { min-height: 320px; }
  .pricing-grid  { grid-template-columns: repeat(2, 1fr); }
  .pricing-featured { transform: none; }
  .footer-inner  { grid-template-columns: 1fr 1fr; gap: 36px; }
  .gallery-grid  { grid-template-columns: repeat(3, 1fr); }
  .gallery-item:nth-child(1) { grid-column: 1 / 3; grid-row: 1 / 2; }
  .gallery-item:nth-child(5) { grid-column: auto; }
  .contact-grid  { grid-template-columns: 1fr; gap: 36px; }
}

/* ============================================================
   RESPONSIVE – MOBILE (max 768px)
   ============================================================ */
@media (max-width: 768px) {
  :root { --header-h: 64px; }

  .section { padding: 64px 0; }
  .section-header { margin-bottom: 40px; }

  /* Header */
  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(255,255,255,.98);
    backdrop-filter: blur(16px);
    padding: 20px 24px 28px;
    transform: translateY(-120%);
    opacity: 0;
    transition: transform var(--transition), opacity var(--transition);
    box-shadow: var(--shadow-lg);
    z-index: 999;
    border-top: 2px solid var(--primary);
  }

  .nav.open {
    transform: translateY(0);
    opacity: 1;
  }

  .nav-list {
    flex-direction: column;
    gap: 4px;
    align-items: stretch;
  }

  .nav-link {
    color: var(--text) !important;
    padding: 13px 16px;
    border-radius: var(--radius);
    font-size: 1rem;
  }

  .nav-link:hover, .nav-link.active {
    background: var(--bg);
    color: var(--primary) !important;
  }

  .nav-link::after { display: none; }

  .btn-hotline {
    display: none;
  }

  .hamburger { display: flex; }

  /* Hero */
  .hero-title { font-size: clamp(1.8rem, 8vw, 2.8rem); }
  .hero-desc  { font-size: .9rem; }
  .hero-desc br { display: none; }

  .hero-cta {
    flex-direction: column;
    gap: 12px;
  }

  .hero-stats {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    padding: 20px 22px;
    width: 100%;
  }

  .hero-stat { padding: 0; }
  .stat-divider { width: 100%; height: 1px; }

  /* Trust bar */
  .trust-inner {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }

  .trust-item { border-right: none; border-bottom: 1px solid rgba(255,255,255,.12); }
  .trust-item:nth-child(odd) { border-right: 1px solid rgba(255,255,255,.12); }

  /* Services */
  .services-grid { grid-template-columns: 1fr; }

  /* Destinations */
  .destinations-grid { grid-template-columns: 1fr; }
  .dest-large { grid-column: auto; grid-row: auto; }
  .dest-large .dest-img { min-height: 260px; }
  .dest-img { min-height: 200px; }

  /* Pricing */
  .pricing-grid { grid-template-columns: 1fr; }
  .pricing-featured { transform: none; }

  /* Gallery */
  .gallery-grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 160px; }
  .gallery-item:nth-child(1) { grid-column: auto; grid-row: auto; }
  .gallery-item:nth-child(5) { grid-column: auto; }

  /* Testimonials */
  .testimonial-card { flex: 0 0 calc(100% - 0px); }

  /* FAQ */
  .faq-question { font-size: .88rem; }

  /* Contact */
  .contact-channels { flex-direction: column; }
  .contact-form-wrap { padding: 28px 20px; }
  .form-row { grid-template-columns: 1fr; }

  /* Footer */
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom .container { flex-direction: column; text-align: center; }

  /* Lightbox */
  .lightbox-prev { left: 8px; }
  .lightbox-next { right: 8px; }
}

/* ============================================================
   RESPONSIVE – SMALL MOBILE (max 480px)
   ============================================================ */
@media (max-width: 480px) {
  .hero-title { font-size: 1.75rem; }
  .hero-badge { font-size: .75rem; }
  .gallery-grid { grid-template-columns: 1fr; grid-auto-rows: 200px; }
  .section-title { font-size: 1.6rem; }
  .trust-inner { grid-template-columns: 1fr; }
  .trust-item:nth-child(odd) { border-right: none; }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
  .hero-slide { transition: none; }
  .scroll-arrow { animation: none; }
  .float-call  { animation: none; }
}