/* ============================================
   HUG IN TEM RẺ – MODERN UI 2026
   ============================================ */

:root {
  --primary: #BF3030;
  --primary-light: #D95050;
  --primary-dark: #8B1A1A;
  --accent: #CC9933;
  --accent-light: #E8BA55;
  --white: #FFFFFF;
  --light-bg: #FFF6F2;
  --warm-gray: #F8F2EE;
  --text: #2C2220;
  --text-muted: #7A6A65;
  --border: rgba(191,48,48,0.10);
  --shadow-sm: 0 2px 10px rgba(0,0,0,0.05);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.08);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.11);
  --shadow-red: 0 10px 36px rgba(191,48,48,0.20);
  --radius: 16px;
  --radius-sm: 8px;
  --radius-lg: 24px;
  --transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}

/* ============================================ RESET */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; font-size:16px; }
body {
  font-family: 'Be Vietnam Pro', sans-serif;
  color: var(--text);
  line-height: 1.7;
  background: var(--white);
  overflow-x: hidden;
}
a { text-decoration:none; color:inherit; transition: var(--transition); }
img { max-width:100%; height:auto; display:block; }

/* ============================================ LAYOUT */
.container { max-width:1200px; margin:0 auto; padding:0 24px; }
section { padding:100px 0; }

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(139,0,0,0.08);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 16px;
}

section h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  color: var(--text);
  margin-bottom: 16px;
  text-align: center;
  line-height: 1.25;
}
section h2 span { color: var(--primary); }

.section-subtitle {
  text-align:center;
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 56px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}
.section-header { text-align:center; margin-bottom:56px; }

/* ============================================ BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 100px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
  color: var(--white);
  box-shadow: var(--shadow-red);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 48px rgba(139,0,0,0.35);
}
.btn-secondary {
  background: rgba(255,255,255,0.15);
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.5);
  backdrop-filter: blur(10px);
}
.btn-secondary:hover {
  background: var(--white);
  color: var(--primary);
  border-color: var(--white);
  transform: translateY(-3px);
}
.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-zalo { background: linear-gradient(135deg, #0084ff, #0060cc); color: var(--white); box-shadow: 0 8px 24px rgba(0,132,255,0.3); }
.btn-zalo:hover { transform: translateY(-3px); box-shadow: 0 12px 32px rgba(0,132,255,0.45); }
.btn-facebook { background: linear-gradient(135deg, #4267B2, #2D4A8C); color: var(--white); box-shadow: 0 8px 24px rgba(66,103,178,0.3); }
.btn-facebook:hover { transform: translateY(-3px); }

/* ============================================ NAVBAR */
.navbar {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid rgba(0,0,0,0.06);
  transition: var(--transition);
}
.navbar.scrolled { box-shadow: var(--shadow-md); }
.navbar-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo { display:flex; align-items:center; gap:12px; }
.logo-img {
  height: 44px;
  width: 44px;
  object-fit: contain;
  border-radius: 50%;
  border: 2px solid var(--accent);
}
.brand-name {
  font-family: 'Playfair Display', serif;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.01em;
}
.nav-menu { display:flex; list-style:none; gap:8px; }
.nav-menu a {
  color: var(--text);
  font-weight: 600;
  font-size: 0.88rem;
  padding: 8px 14px;
  border-radius: 8px;
  transition: var(--transition);
}
.nav-menu a:hover { color: var(--primary); background: rgba(139,0,0,0.06); }
.nav-menu a.active { color: var(--primary); background: rgba(139,0,0,0.08); }
.nav-cta { margin-left: 8px; }
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--primary);
  padding: 6px;
  border-radius: 8px;
  transition: var(--transition);
}
.menu-toggle:hover { background: rgba(139,0,0,0.08); }

/* ============================================ HERO */
.hero {
  position: relative;
  background: linear-gradient(145deg, #7A1A1A 0%, #BF3030 45%, #D05050 75%, #9B2525 100%);
  color: var(--white);
  padding: 0;
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 50%, rgba(204,153,51,0.20) 0%, transparent 60%),
    radial-gradient(ellipse 50% 80% at 10% 80%, rgba(0,0,0,0.18) 0%, transparent 60%);
  pointer-events: none;
}
.hero-pattern {
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(45deg, rgba(255,255,255,0.02) 0px, rgba(255,255,255,0.02) 1px, transparent 1px, transparent 40px),
    repeating-linear-gradient(-45deg, rgba(255,255,255,0.02) 0px, rgba(255,255,255,0.02) 1px, transparent 1px, transparent 40px);
  pointer-events: none;
}
.hero-deco {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}
.hero-deco-1 {
  width: 500px; height: 500px;
  top: -200px; right: -100px;
  background: radial-gradient(circle, rgba(201,168,76,0.15) 0%, transparent 70%);
}
.hero-deco-2 {
  width: 300px; height: 300px;
  bottom: -100px; left: -80px;
  background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 70%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: 120px 24px 100px;
  text-align: center;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(201,168,76,0.2);
  border: 1px solid rgba(201,168,76,0.4);
  color: var(--accent-light);
  padding: 8px 20px;
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 28px;
  backdrop-filter: blur(8px);
}
.hero-badge::before { content: '✦'; }
.hero-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 24px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.hero-title .highlight {
  color: var(--accent-light);
  position: relative;
}
.hero-title .highlight::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
  opacity: 0.6;
}
.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  opacity: 0.9;
  max-width: 680px;
  margin: 0 auto 48px;
  line-height: 1.8;
}
.hero-buttons { display:flex; gap:16px; justify-content:center; flex-wrap:wrap; margin-bottom: 64px; }

.hero-stats {
  display: flex;
  gap: 48px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 2;
}
.hero-stat {
  text-align: center;
  padding: 20px 28px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  min-width: 140px;
  transition: var(--transition);
}
.hero-stat:hover { background: rgba(255,255,255,0.14); transform: translateY(-3px); }
.hero-stat-num {
  font-family: 'Playfair Display', serif;
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--accent-light);
  line-height: 1;
  margin-bottom: 6px;
}
.hero-stat-label { font-size: 0.8rem; opacity: 0.8; font-weight: 500; }

/* Hero banner image */
.hero-banner-wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px 48px;
}
.hero-banner-img {
  width: 100%;
  border-radius: 20px;
  box-shadow: 0 24px 64px rgba(0,0,0,0.30);
  border: 3px solid rgba(255,255,255,0.18);
  display: block;
}

/* ============================================ SERVICES */
.services { background: var(--white); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  group: true;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.service-card:hover::before { transform: scaleX(1); }
.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.service-icon-wrap {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, rgba(139,0,0,0.08), rgba(201,168,76,0.08));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 20px;
  transition: var(--transition);
}
.service-card:hover .service-icon-wrap {
  background: linear-gradient(135deg, rgba(139,0,0,0.15), rgba(201,168,76,0.15));
  transform: scale(1.1) rotate(3deg);
}
.service-card h3 { font-size: 1.1rem; font-weight: 700; color: var(--text); margin-bottom: 10px; }
.service-card p { color: var(--text-muted); font-size: 0.92rem; line-height: 1.8; }

/* ============================================ WHY US */
.why-us {
  background: linear-gradient(160deg, var(--light-bg) 0%, #FFF0E6 100%);
  position: relative;
  overflow: hidden;
}
.why-us::before {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201,168,76,0.08) 0%, transparent 70%);
  pointer-events: none;
}
.reasons-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.reason-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px 24px;
  transition: var(--transition);
  display: flex;
  gap: 16px;
  align-items: flex-start;
  box-shadow: var(--shadow-sm);
}
.reason-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.reason-icon-wrap {
  width: 48px;
  height: 48px;
  min-width: 48px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  box-shadow: 0 6px 16px rgba(139,0,0,0.25);
}
.reason-card h3 { font-size: 1rem; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.reason-card p { color: var(--text-muted); font-size: 0.88rem; line-height: 1.75; }

/* ============================================ PROCESS */
.process { background: var(--white); }
.process-track {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
  margin-top: 16px;
}
.process-track::before {
  content: '';
  position: absolute;
  top: 44px;
  left: 12.5%;
  right: 12.5%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
  z-index: 0;
}
.step {
  text-align: center;
  padding: 0 20px 40px;
  position: relative;
  z-index: 1;
}
.step-bubble {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
  color: var(--white);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  box-shadow: 0 8px 24px rgba(139,0,0,0.3);
  transition: var(--transition);
  border: 4px solid var(--white);
  outline: 2px solid var(--primary);
}
.step:hover .step-bubble { transform: scale(1.1); box-shadow: var(--shadow-red); }
.step-num { font-size: 1.6rem; font-weight: 800; line-height: 1; }
.step-icon-s { font-size: 0.7rem; opacity: 0.75; margin-top: 2px; }
.step h3 { font-size: 1rem; font-weight: 700; color: var(--text); margin-bottom: 10px; }
.step p { color: var(--text-muted); font-size: 0.86rem; line-height: 1.75; }

/* ============================================ SERVICE AREAS */
.service-areas {
  background: linear-gradient(135deg, #8B1A1A 0%, #BF3030 55%, #CC4444 100%);
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.service-areas::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(45deg, rgba(255,255,255,0.02) 0, rgba(255,255,255,0.02) 1px, transparent 0, transparent 50%);
  background-size: 30px 30px;
}
.service-areas .section-header { position: relative; }
.service-areas h2 { color: var(--white); }
.service-areas .section-subtitle { color: rgba(255,255,255,0.75); margin-bottom: 48px; }
.areas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  position: relative;
}
.area-chip {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  backdrop-filter: blur(8px);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  font-weight: 600;
  font-size: 0.92rem;
  transition: var(--transition);
}
.area-chip:hover { background: rgba(255,255,255,0.2); transform: translateX(4px); }
.area-chip .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent-light);
  flex-shrink: 0;
}
.area-note {
  position: relative;
  margin-top: 32px;
  background: rgba(201,168,76,0.2);
  border: 1px solid rgba(201,168,76,0.4);
  border-radius: var(--radius);
  padding: 20px 28px;
  text-align: center;
  font-weight: 600;
  font-size: 1rem;
}

/* ============================================ PORTFOLIO */
.portfolio { background: var(--warm-gray); }
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  aspect-ratio: 1;
  cursor: pointer;
  background: linear-gradient(135deg, rgba(139,0,0,0.08), rgba(201,168,76,0.08));
  display: flex;
  align-items: center;
  justify-content: center;
}
.gallery-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #f5e6e6, #faf0d7);
  gap: 12px;
  transition: var(--transition);
}
.gallery-placeholder-icon { font-size: 3rem; opacity: 0.5; }
.gallery-placeholder-text {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 600;
  text-align: center;
  padding: 0 16px;
}
.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(0.4,0,0.2,1);
  position: relative;
  z-index: 1;
}
.gallery-item:hover img { transform: scale(1.08); }
/* hide placeholder when real image is present */
.gallery-item img ~ .gallery-placeholder { display: none; }
.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(90,0,0,0.9) 0%, rgba(139,0,0,0.4) 50%, transparent 100%);
  display: flex;
  align-items: flex-end;
  padding: 24px;
  opacity: 0;
  transition: var(--transition);
}
.gallery-item:hover .gallery-overlay { opacity: 1; }
.gallery-item:hover .gallery-placeholder { transform: scale(1.05); }
.gallery-overlay p {
  color: var(--white);
  font-size: 0.95rem;
  font-weight: 600;
}

/* ============================================ TESTIMONIALS */
.testimonials { background: var(--white); }
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.testimonial-card {
  background: var(--light-bg);
  border-radius: var(--radius);
  padding: 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(201,168,76,0.2);
}
.testimonial-card::before {
  content: '"';
  position: absolute;
  top: -10px;
  right: 20px;
  font-family: 'Playfair Display', serif;
  font-size: 8rem;
  color: var(--primary);
  opacity: 0.06;
  line-height: 1;
  pointer-events: none;
}
.testimonial-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.stars { color: #F59E0B; font-size: 1rem; margin-bottom: 14px; letter-spacing: 2px; }
.review-text {
  font-size: 0.95rem;
  color: var(--text);
  line-height: 1.85;
  margin-bottom: 20px;
  font-style: italic;
}
.reviewer {
  display: flex;
  align-items: center;
  gap: 12px;
}
.reviewer-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 1rem;
  flex-shrink: 0;
}
.reviewer-name { font-weight: 700; font-size: 0.9rem; }
.reviewer-role { color: var(--text-muted); font-size: 0.8rem; margin-top: 2px; }

/* ============================================ CONTACT */
.contact { background: var(--light-bg); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
  margin-bottom: 56px;
}
.contact-cards { display: grid; gap: 16px; }
.info-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  gap: 16px;
  align-items: center;
  transition: var(--transition);
  border: 1px solid var(--border);
}
.info-card:hover { transform: translateX(6px); box-shadow: var(--shadow-md); border-color: var(--accent); }
.info-card-icon {
  width: 52px; height: 52px;
  min-width: 52px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  box-shadow: 0 4px 12px rgba(139,0,0,0.2);
}
.info-card-body h3 { font-size: 0.82rem; color: var(--text-muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 4px; }
.big-phone { font-size: 1.6rem; font-weight: 800; color: var(--primary); line-height: 1.2; }
.info-card-body p { font-size: 0.9rem; color: var(--text); font-weight: 600; }
.info-card-body small { color: var(--text-muted); font-size: 0.8rem; }
.info-card-body .btn { margin-top: 8px; padding: 10px 22px; font-size: 0.85rem; }

.contact-form-wrap {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
}
.contact-form-wrap h3 {
  font-family: 'Playfair Display', serif;
  font-size: 1.4rem;
  color: var(--primary);
  margin-bottom: 6px;
}
.contact-form-wrap > p { color: var(--text-muted); font-size: 0.88rem; margin-bottom: 28px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 20px; }
.form-group label { display:block; font-weight: 600; font-size: 0.85rem; color: var(--text); margin-bottom: 8px; }
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid #E5E5E5;
  border-radius: var(--radius-sm);
  font-family: 'Be Vietnam Pro', sans-serif;
  font-size: 0.9rem;
  transition: var(--transition);
  background: var(--white);
  color: var(--text);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(139,0,0,0.08);
}
.form-group textarea { resize: vertical; min-height: 110px; }

.map-container {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.map-container iframe { display: block; }

/* ============================================ FAQ */
.faq { background: var(--white); }
.faq-list { max-width: 820px; margin: 0 auto; display: grid; gap: 12px; }
.faq-item {
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: rgba(139,0,0,0.25); }
.faq-item.active { border-color: var(--primary); box-shadow: 0 4px 20px rgba(139,0,0,0.1); }
.faq-question {
  padding: 20px 24px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  user-select: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: var(--transition);
  background: var(--white);
}
.faq-question:hover { color: var(--primary); }
.faq-item.active .faq-question { color: var(--primary); }
.faq-toggle {
  width: 28px; height: 28px; min-width: 28px;
  border-radius: 50%;
  background: rgba(139,0,0,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--primary);
  transition: var(--transition);
}
.faq-item.active .faq-toggle { background: var(--primary); color: var(--white); transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.faq-item.active .faq-answer { max-height: 600px; }
.faq-answer p {
  padding: 4px 24px 24px;
  color: var(--text-muted);
  line-height: 1.85;
  font-size: 0.92rem;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

/* ============================================ FOOTER */
.footer {
  background: linear-gradient(160deg, #111 0%, #1A1A1A 100%);
  color: var(--white);
  padding: 72px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .brand-name { color: var(--white); }
.footer-brand p { color: rgba(255,255,255,0.6); font-size: 0.88rem; line-height: 1.8; margin-bottom: 20px; }
.footer-social { display: flex; gap: 10px; }
.social-btn {
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 700;
  transition: var(--transition);
}
.social-fb { background: #4267B2; color: var(--white); }
.social-fb:hover { background: #2D4A8C; transform: translateY(-3px); }
.social-zalo { background: #0084ff; color: var(--white); }
.social-zalo:hover { background: #0060cc; transform: translateY(-3px); }

.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a { color: rgba(255,255,255,0.6); font-size: 0.88rem; transition: var(--transition); }
.footer-col ul li a:hover { color: var(--white); padding-left: 4px; }
.footer-contact-item {
  display: flex;
  gap: 10px;
  margin-bottom: 14px;
  align-items: flex-start;
}
.footer-contact-item .ico { font-size: 1rem; flex-shrink: 0; margin-top: 1px; }
.footer-contact-item span { color: rgba(255,255,255,0.65); font-size: 0.86rem; line-height: 1.6; }
.footer-contact-item a { color: rgba(255,255,255,0.65); font-size: 0.86rem; }
.footer-contact-item a:hover { color: var(--accent); }

.footer-bottom {
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p { color: rgba(255,255,255,0.4); font-size: 0.82rem; }
.footer-bottom a { color: rgba(255,255,255,0.4); font-size: 0.82rem; }
.footer-bottom a:hover { color: var(--accent); }

/* ============================================ FLOATING BUTTONS */
.floating-buttons {
  position: fixed;
  bottom: 28px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
}
.fab {
  width: 56px; height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 800;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 6px 20px rgba(0,0,0,0.25);
  position: relative;
}
.fab::before {
  content: attr(data-tooltip);
  position: absolute;
  right: calc(100% + 12px);
  white-space: nowrap;
  background: rgba(0,0,0,0.8);
  color: var(--white);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 6px;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}
.fab:hover::before { opacity: 1; }
.fab:hover { transform: scale(1.12); box-shadow: 0 10px 32px rgba(0,0,0,0.3); }
.fab-zalo { background: linear-gradient(135deg, #0084ff, #0060cc); color: var(--white); }
.fab-phone { background: linear-gradient(135deg, var(--primary-light), var(--primary-dark)); color: var(--white); }
.fab-scroll {
  background: var(--accent);
  color: var(--white);
  display: none;
  font-size: 1rem;
}
.fab-scroll.show { display: flex; }

/* ============================================ ANIMATIONS */
@keyframes fadeInUp {
  from { opacity:0; transform:translateY(28px); }
  to   { opacity:1; transform:translateY(0); }
}
@keyframes pulse-ring {
  0%   { transform:scale(1); opacity:0.6; }
  100% { transform:scale(1.6); opacity:0; }
}
.fade-in-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.fade-in-up.visible { opacity:1; transform:translateY(0); }

/* pulse on fab */
.fab-phone::after {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid var(--primary-light);
  animation: pulse-ring 2s ease-out infinite;
}

/* ============================================ RESPONSIVE */
@media (max-width: 1024px) {
  .services-grid,
  .reasons-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .process-track { grid-template-columns: repeat(2, 1fr); }
  .process-track::before { display: none; }
}

@media (max-width: 768px) {
  section { padding: 72px 0; }
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    padding: 12px;
    gap: 4px;
    box-shadow: var(--shadow-md);
  }
  .nav-menu.active { display: flex; }
  .nav-cta { display: none; }
  .menu-toggle { display: flex; }
  .hero-content { padding: 80px 24px 60px; }
  .hero-stats { gap: 12px; }
  .hero-stat { min-width: 110px; padding: 14px 16px; }
  .services-grid,
  .reasons-grid,
  .testimonials-grid,
  .gallery-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .contact-form-wrap { padding: 28px 20px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .hero-buttons { flex-direction: column; align-items: center; }
  .hero-buttons .btn { width: 280px; max-width: 100%; }
  .process-track { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .navbar-container { padding: 0 16px; }
  .hero-title { font-size: 2rem; }
  .hero-stat-num { font-size: 1.8rem; }
  .floating-buttons { right: 16px; bottom: 20px; }
  .fab { width: 50px; height: 50px; font-size: 1.1rem; }
}

/* ============================================ BLOG SECTION */
.blog-section { background: var(--light-bg); }
.blog-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 28px; }
.blog-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.blog-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: transparent; }
.blog-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
}
.blog-thumb img { width:100%; height:100%; object-fit:cover; transition: transform 0.5s ease; }
.blog-card:hover .blog-thumb img { transform: scale(1.06); }
.blog-cat {
  position: absolute;
  top: 14px; left: 14px;
  background: var(--primary);
  color: var(--white);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 100px;
}
.blog-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.blog-meta { font-size: 0.78rem; color: var(--text-muted); margin-bottom: 10px; }
.blog-body h3 { font-size: 1rem; font-weight: 700; line-height: 1.5; margin-bottom: 10px; }
.blog-body h3 a { color: var(--text); transition: var(--transition); }
.blog-body h3 a:hover { color: var(--primary); }
.blog-body p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.75; flex: 1; margin-bottom: 16px; }
.blog-read-more { font-size: 0.85rem; font-weight: 700; color: var(--primary); transition: var(--transition); }
.blog-read-more:hover { gap: 6px; opacity: 0.8; }
@media (max-width: 1024px) { .blog-grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 640px) { .blog-grid { grid-template-columns: 1fr; } }

/* ============================================ VIDEO SHOWCASE */
.video-showcase { background: var(--warm-gray); }

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

.video-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 9/16;
  background: #1A1A1A;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}
.video-item:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }

.video-item video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.video-item.playing .video-play-overlay { opacity: 0; pointer-events: none; }

.video-play-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(to top, rgba(120,20,20,0.75) 0%, rgba(0,0,0,0.25) 60%, transparent 100%);
  transition: var(--transition);
}
.video-item:hover .video-play-overlay { background: linear-gradient(to top, rgba(120,20,20,0.6) 0%, rgba(0,0,0,0.15) 60%, transparent 100%); }

.play-btn {
  width: 60px; height: 60px;
  border-radius: 50%;
  background: rgba(255,255,255,0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--primary);
  margin-bottom: 14px;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(0,0,0,0.25);
}
.video-item:hover .play-btn { transform: scale(1.12); background: var(--white); }

.video-label {
  color: var(--white);
  font-size: 0.82rem;
  font-weight: 600;
  text-align: center;
  padding: 0 12px;
  text-shadow: 0 1px 4px rgba(0,0,0,0.5);
}

@media (max-width: 1024px) {
  .video-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 768px) {
  .video-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
}
@media (max-width: 480px) {
  .video-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .play-btn { width: 48px; height: 48px; font-size: 1rem; }
}