/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Be Vietnam Pro', sans-serif;
  color: #1a1a2e;
  background: #fff;
  line-height: 1.7;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }

/* ===== VARIABLES ===== */
:root {
  --navy: #0f2444;
  --navy-light: #1a3a6b;
  --gold: #7CB518;
  --gold-light: #9fd63a;
  --cream: #fdf8f0;
  --cream-dark: #f5ede0;
  --text: #2c2c3e;
  --text-light: #6b7280;
  --white: #ffffff;
  --radius: 12px;
  --shadow: 0 8px 32px rgba(15,36,68,0.10);
  --shadow-hover: 0 16px 48px rgba(15,36,68,0.18);
}

/* ===== UTILITIES ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section-tag {
  display: inline-block;
  background: rgba(124,181,24,0.12);
  color: var(--gold);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 16px;
}
.section-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(28px, 4vw, 42px);
  color: var(--navy);
  line-height: 1.2;
  margin-bottom: 16px;
}
.section-subtitle {
  font-size: 16px;
  color: var(--text-light);
  max-width: 600px;
  line-height: 1.8;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--gold);
  color: #fff;
}
.btn-primary:hover { background: #5a9010; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(124,181,24,0.35); }
.btn-outline {
  background: transparent;
  border-color: var(--white);
  color: var(--white);
}
.btn-outline:hover { background: var(--white); color: var(--navy); }
.btn-outline-dark {
  background: transparent;
  border-color: var(--navy);
  color: var(--navy);
}
.btn-outline-dark:hover { background: var(--navy); color: #fff; }

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(15,36,68,0.1);
  transition: all 0.3s;
}
.navbar.scrolled { box-shadow: 0 4px 24px rgba(0,0,0,0.12); }
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo-icon {
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.logo-text { color: var(--navy); }
.logo-text strong {
  display: block;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 1px;
}
.logo-text span {
  display: block;
  font-size: 10px;
  font-weight: 400;
  opacity: 0.6;
  letter-spacing: 2px;
  text-transform: uppercase;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}
.nav-links a {
  color: var(--navy);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--gold); }
.nav-cta {
  background: var(--gold);
  color: #fff !important;
  padding: 9px 22px;
  border-radius: 6px;
  font-weight: 600 !important;
}
.nav-cta:hover { background: #5a9010 !important; }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.nav-toggle span { width: 24px; height: 2px; background: var(--navy); border-radius: 2px; transition: all 0.3s; display: block; }

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  background: #ffffff;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 70px;
}
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 80% 50%, rgba(124,181,24,0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 80% at 10% 80%, rgba(15,36,68,0.04) 0%, transparent 60%);
}
.hero-pattern { display: none; }
.hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  width: 100%;
}
.hero-left { }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(124,181,24,0.12);
  border: 1px solid rgba(124,181,24,0.3);
  color: var(--gold);
  padding: 8px 18px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 28px;
}
.hero-badge::before { content: '✦'; font-size: 10px; }
.hero-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(36px, 5vw, 62px);
  color: var(--navy);
  line-height: 1.15;
  margin-bottom: 24px;
}
.hero-title em { color: var(--gold); font-style: italic; }
.hero-desc {
  color: var(--text-light);
  font-size: 17px;
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 520px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 52px;
  padding-top: 40px;
  border-top: 1px solid rgba(15,36,68,0.1);
}
.stat-item { }
.stat-num {
  font-family: 'Playfair Display', serif;
  font-size: 36px;
  color: var(--gold);
  font-weight: 700;
  line-height: 1;
}
.stat-label { font-size: 12px; color: var(--text-light); margin-top: 4px; letter-spacing: 0.5px; }
.hero-right {
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero-visual {
  position: relative;
  width: 380px;
}
.book-stack {
  position: relative;
  width: 280px;
  margin: 0 auto;
}
.book-card-3d {
  width: 200px;
  height: 260px;
  border-radius: 4px 12px 12px 4px;
  box-shadow: -6px 6px 0 rgba(0,0,0,0.3), var(--shadow-hover);
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}
.book-card-3d::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 14px;
  background: rgba(0,0,0,0.25);
  border-radius: 4px 0 0 4px;
}
.books-float {
  display: flex;
  gap: 16px;
  align-items: flex-end;
  justify-content: center;
}
.bk1 { height: 260px; transform: rotate(-3deg); }
.bk2 { height: 300px; transform: rotate(1deg); }
.bk3 { height: 240px; transform: rotate(-2deg); }
.bk-img { width: 100%; height: 100%; object-fit: cover; display: block; }
.bk-inner { display: none; }
.bk-logo { display: none; }
.float-badge {
  position: absolute;
  background: #fff;
  border-radius: 12px;
  padding: 12px 16px;
  box-shadow: var(--shadow);
  font-size: 13px;
  font-weight: 600;
  color: var(--navy);
  display: flex;
  align-items: center;
  gap: 8px;
}
.float-badge.badge-1 { top: -20px; right: -20px; }
.float-badge.badge-2 { bottom: -20px; left: -30px; }
.float-badge .badge-icon { font-size: 20px; }

/* ===== MARQUEE ===== */
.marquee-strip {
  background: var(--gold);
  padding: 14px 0;
  overflow: hidden;
}
.marquee-track {
  display: flex;
  gap: 0;
  animation: marquee 30s linear infinite;
  white-space: nowrap;
}
.marquee-item {
  padding: 0 32px;
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-right: 1px solid rgba(255,255,255,0.3);
  flex-shrink: 0;
}
@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ===== ABOUT ===== */
.about { background: var(--cream); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about-visual { position: relative; }
.about-img-main {
  width: 100%;
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(135deg, var(--navy), var(--navy-light));
  height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.about-icon { font-size: 80px; opacity: 0.15; }
.about-img-inner {
  text-align: center;
  color: rgba(255,255,255,0.7);
}
.about-img-inner h3 {
  font-family: 'Playfair Display', serif;
  font-size: 22px;
  color: #fff;
  margin-bottom: 8px;
}
.about-img-inner p { font-size: 14px; opacity: 0.6; }
.about-card-float {
  position: absolute;
  bottom: -24px; right: -24px;
  background: var(--gold);
  color: #fff;
  border-radius: var(--radius);
  padding: 20px 24px;
  width: 200px;
  box-shadow: var(--shadow);
}
.about-card-float .num {
  font-family: 'Playfair Display', serif;
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
}
.about-card-float p { font-size: 12px; opacity: 0.9; margin-top: 4px; }
.about-content { }
.about-points { margin-top: 32px; display: flex; flex-direction: column; gap: 20px; }
.about-point {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.about-point-icon {
  width: 44px; height: 44px;
  background: var(--navy);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}
.about-point-text h4 { font-size: 15px; font-weight: 700; color: var(--navy); margin-bottom: 4px; }
.about-point-text p { font-size: 14px; color: var(--text-light); }

/* ===== SERVICES ===== */
.services { background: #fff; }
.services-header { text-align: center; margin-bottom: 60px; }
.services-header .section-subtitle { margin: 0 auto; }
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.service-card {
  background: #fff;
  border: 1px solid #e8ecf5;
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.service-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gold);
  transform: scaleX(0);
  transition: transform 0.3s ease;
  transform-origin: left;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: transparent; }
.service-card:hover::after { transform: scaleX(1); }
.service-icon {
  width: 60px; height: 60px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 28px;
  margin-bottom: 24px;
}
.service-card:nth-child(1) .service-icon { background: #eff6ff; }
.service-card:nth-child(2) .service-icon { background: #fef3c7; }
.service-card:nth-child(3) .service-icon { background: #f0fdf4; }
.service-card:nth-child(4) .service-icon { background: #fdf4ff; }
.service-card:nth-child(5) .service-icon { background: #fff7ed; }
.service-card:nth-child(6) .service-icon { background: #f0f9ff; }
.service-card h3 { font-size: 18px; font-weight: 700; color: var(--navy); margin-bottom: 12px; }
.service-card p { font-size: 14px; color: var(--text-light); line-height: 1.7; }
.service-link { display: inline-flex; align-items: center; gap: 6px; color: var(--gold); font-size: 13px; font-weight: 600; margin-top: 16px; }

/* ===== PROCESS ===== */
.process { background: var(--navy); }
.process-header { text-align: center; margin-bottom: 60px; }
.process-header .section-title { color: #fff; }
.process-header .section-subtitle { color: rgba(255,255,255,0.6); margin: 0 auto; }
.process-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  position: relative;
}
.process-steps::before {
  content: '';
  position: absolute;
  top: 36px;
  left: 10%;
  right: 10%;
  height: 1px;
  background: rgba(124,181,24,0.3);
}
.process-step { text-align: center; position: relative; padding: 0 12px; }
.step-num {
  width: 72px; height: 72px;
  background: var(--gold);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Playfair Display', serif;
  font-size: 24px;
  color: #fff;
  font-weight: 700;
  margin: 0 auto 24px;
  position: relative;
  z-index: 2;
  box-shadow: 0 0 0 6px rgba(124,181,24,0.15);
}
.step-icon { font-size: 28px; display: block; margin-bottom: 16px; }
.process-step h4 { font-size: 15px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.process-step p { font-size: 13px; color: rgba(255,255,255,0.5); line-height: 1.6; }

/* ===== WHY US ===== */
.why-us { background: var(--cream); }
.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.why-content { }
.why-list { margin-top: 32px; display: flex; flex-direction: column; gap: 16px; }
.why-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: #fff;
  padding: 20px;
  border-radius: 10px;
  border: 1px solid #e8ecf5;
  transition: all 0.2s;
}
.why-item:hover { border-color: var(--gold); box-shadow: var(--shadow); }
.why-check {
  width: 36px; height: 36px;
  background: var(--gold);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-size: 16px;
  flex-shrink: 0;
}
.why-item-text h4 { font-size: 15px; font-weight: 700; color: var(--navy); margin-bottom: 4px; }
.why-item-text p { font-size: 13px; color: var(--text-light); }
.why-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.metric-card {
  background: var(--navy);
  color: #fff;
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
}
.metric-card:nth-child(2) { background: var(--gold); margin-top: 32px; }
.metric-card:nth-child(3) { background: #2563eb; margin-top: -32px; }
.metric-card:nth-child(4) { background: #16a34a; }
.metric-card .m-num {
  font-family: 'Playfair Display', serif;
  font-size: 38px;
  font-weight: 700;
  line-height: 1;
}
.metric-card .m-icon { font-size: 32px; margin-bottom: 12px; display: block; }
.metric-card p { font-size: 12px; opacity: 0.8; margin-top: 6px; }

/* ===== PRODUCTS ===== */
.products { background: #fff; }
.products-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 48px;
  flex-wrap: wrap;
  gap: 24px;
}
.filter-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.filter-tab {
  padding: 8px 20px;
  border-radius: 100px;
  border: 1.5px solid #e8ecf5;
  background: #fff;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-light);
  cursor: pointer;
  transition: all 0.2s;
}
.filter-tab.active, .filter-tab:hover {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}
.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.product-card {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid #e8ecf5;
  background: #fff;
  transition: all 0.3s ease;
  cursor: pointer;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: transparent; }
.product-cover {
  aspect-ratio: 3/4;
  position: relative;
  overflow: hidden;
}
.product-cover::after {
  content: '🛒 Xem trên Tiki →';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: rgba(124,181,24,0.92);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  padding: 10px 8px;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}
.product-card:hover .product-cover::after { transform: translateY(0); }
.product-cover-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.product-card:hover .product-cover-img { transform: scale(1.05); }
.product-badge {
  position: absolute;
  top: 12px; right: 12px;
  background: var(--gold);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 100px;
  letter-spacing: 0.5px;
}
.product-info { padding: 16px; }
.product-category { font-size: 11px; color: var(--gold); font-weight: 600; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 6px; }
.product-title { font-size: 14px; font-weight: 700; color: var(--navy); margin-bottom: 4px; line-height: 1.4; }
.product-author { font-size: 12px; color: var(--text-light); }

/* ===== TESTIMONIALS ===== */
.testimonials { background: var(--cream); }
.testi-header { text-align: center; margin-bottom: 56px; }
.testi-header .section-subtitle { margin: 0 auto; }
.testi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testi-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 32px;
  border: 1px solid #e8ecf5;
  transition: all 0.3s;
}
.testi-card:hover { box-shadow: var(--shadow); transform: translateY(-4px); }
.testi-stars { color: var(--gold); font-size: 16px; margin-bottom: 16px; letter-spacing: 2px; }
.testi-quote { font-size: 15px; color: var(--text); line-height: 1.8; margin-bottom: 24px; font-style: italic; }
.testi-author { display: flex; align-items: center; gap: 12px; }
.testi-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.testi-name { font-size: 14px; font-weight: 700; color: var(--navy); }
.testi-role { font-size: 12px; color: var(--text-light); }

/* ===== FAQ ===== */
.faq { background: #fff; }
.faq-inner {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 80px;
  align-items: start;
}
.faq-left .section-subtitle { margin-bottom: 32px; }
.faq-contact-card {
  background: var(--navy);
  color: #fff;
  border-radius: var(--radius);
  padding: 32px;
  margin-top: 24px;
}
.faq-contact-card h4 { font-size: 18px; font-weight: 700; margin-bottom: 12px; }
.faq-contact-card p { font-size: 14px; opacity: 0.7; margin-bottom: 20px; }
.faq-items { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  border: 1px solid #e8ecf5;
  border-radius: 10px;
  overflow: hidden;
}
.faq-q {
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--navy);
  transition: background 0.2s;
}
.faq-q:hover { background: var(--cream); }
.faq-q.open { background: var(--navy); color: #fff; }
.faq-arrow { font-size: 18px; transition: transform 0.3s; flex-shrink: 0; }
.faq-q.open .faq-arrow { transform: rotate(45deg); }
.faq-a {
  display: none;
  padding: 0 24px 20px;
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.8;
  background: var(--cream);
  border-top: 1px solid #e8ecf5;
}
.faq-a.open { display: block; }

/* ===== CONTACT ===== */
.contact { background: var(--navy); }
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.contact-left .section-title { color: #fff; }
.contact-left .section-subtitle { color: rgba(255,255,255,0.6); margin-bottom: 40px; }
.contact-info { display: flex; flex-direction: column; gap: 20px; }
.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.contact-icon {
  width: 44px; height: 44px;
  background: rgba(124,181,24,0.15);
  border: 1px solid rgba(124,181,24,0.25);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.contact-item-text label { font-size: 11px; color: rgba(255,255,255,0.4); display: block; margin-bottom: 2px; letter-spacing: 1px; text-transform: uppercase; }
.contact-item-text span { font-size: 15px; color: rgba(255,255,255,0.9); font-weight: 500; }
.contact-form-wrap {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 16px;
  padding: 40px;
}
.contact-form-wrap h3 {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}
.contact-form-wrap p { font-size: 14px; color: rgba(255,255,255,0.5); margin-bottom: 28px; }
.form-group { margin-bottom: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; color: rgba(255,255,255,0.7); margin-bottom: 8px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 14px;
  color: #fff;
  font-family: inherit;
  transition: border-color 0.2s;
  outline: none;
}
.form-group input::placeholder, .form-group textarea::placeholder { color: rgba(255,255,255,0.3); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--gold);
}
.form-group select { cursor: pointer; }
.form-group select option { background: var(--navy); color: #fff; }
.form-group textarea { resize: vertical; min-height: 100px; }
.form-submit { width: 100%; padding: 15px; background: var(--gold); border: none; border-radius: 8px; font-size: 15px; font-weight: 700; color: #fff; cursor: pointer; transition: all 0.3s; font-family: inherit; }
.form-submit:hover { background: #5a9010; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(124,181,24,0.4); }

/* ===== FOOTER ===== */
.footer {
  background: #070f1e;
  padding: 60px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { font-size: 13px; color: rgba(255,255,255,0.45); line-height: 1.8; }
.footer-socials { display: flex; gap: 10px; margin-top: 20px; }
.social-btn {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: rgba(255,255,255,0.07);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
  transition: background 0.2s;
  cursor: pointer;
}
.social-btn:hover { background: var(--gold); }
.footer-col h4 { font-size: 13px; font-weight: 700; color: #fff; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 20px; }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.footer-links li a { font-size: 13px; color: rgba(255,255,255,0.45); transition: color 0.2s; }
.footer-links li a:hover { color: var(--gold-light); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.07);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-bottom p { font-size: 12px; color: rgba(255,255,255,0.3); }
.footer-bottom a { color: var(--gold); }
.gov-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: rgba(255,255,255,0.3);
}

/* ===== FLOATING CTA ===== */
.floating-cta {
  position: fixed;
  bottom: 32px; right: 32px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-end;
}
.float-btn {
  width: 52px; height: 52px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.25);
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
}
.float-btn:hover { transform: scale(1.1); }
.float-zalo { background: #0068ff; }
.float-phone { background: #16a34a; }
.float-top { background: var(--navy); display: none; }
.float-label {
  background: rgba(15,36,68,0.9);
  color: #fff;
  font-size: 12px;
  padding: 6px 12px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  gap: 4px;
  opacity: 0;
  transform: translateX(10px);
  transition: all 0.2s;
  pointer-events: none;
}
.float-btn-wrap { display: flex; align-items: center; gap: 10px; }
.float-btn-wrap:hover .float-label { opacity: 1; transform: translateX(0); }

/* ===== BACK TO TOP ===== */
#backTop {
  position: fixed;
  bottom: 32px; left: 32px;
  width: 44px; height: 44px;
  background: var(--navy);
  color: #fff;
  border-radius: 8px;
  display: none;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 18px;
  z-index: 999;
  box-shadow: var(--shadow);
  transition: all 0.3s;
  border: none;
}
#backTop.show { display: flex; }
#backTop:hover { background: var(--gold); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero-content { grid-template-columns: 1fr; text-align: center; }
  .hero-right { display: none; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-desc { margin: 0 auto 40px; }
  .about-grid, .why-grid, .faq-inner, .contact-inner { grid-template-columns: 1fr; gap: 48px; }
  .about-card-float { position: static; margin-top: 16px; width: 100%; }
  .process-steps { grid-template-columns: repeat(3, 1fr); gap: 32px; }
  .process-steps::before { display: none; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .products-grid { grid-template-columns: repeat(3, 1fr); }
  .testi-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .section { padding: 56px 0; }
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .services-grid, .products-grid, .testi-grid { grid-template-columns: 1fr 1fr; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .why-visual { grid-template-columns: 1fr 1fr; }
  .why-visual .metric-card:nth-child(2), .why-visual .metric-card:nth-child(3) { margin-top: 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .form-row { grid-template-columns: 1fr; }
  .products-header { flex-direction: column; align-items: flex-start; }
  .hero-stats { gap: 24px; flex-wrap: wrap; }
}
@media (max-width: 480px) {
  .services-grid, .products-grid, .testi-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr; }
  .hero-title { font-size: 32px; }
  .floating-cta { bottom: 20px; right: 20px; }
}