/* ============================================================
   THIETBISO.COM — style.css
   Thiết kế: Chuyên nghiệp, tin cậy, tối ưu conversion
   Màu chủ đạo: Navy #1a237e + Orange #ff6b35
   ============================================================ */

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

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

body {
  font-family: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: #1a1a2e;
  background: #fff;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ── CSS Variables ────────────────────────────────────────── */
:root {
  --navy:      #1a237e;
  --navy-dark: #0d1757;
  --navy-light:#e8eaf6;
  --orange:    #ff6b35;
  --orange-dk: #e55a27;
  --green:     #22c55e;
  --gray-50:   #f8fafc;
  --gray-100:  #f1f5f9;
  --gray-200:  #e2e8f0;
  --gray-500:  #64748b;
  --gray-700:  #334155;
  --white:     #ffffff;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,.10);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.14);
  --radius:    10px;
  --radius-lg: 16px;
  --transition: .25s ease;
}

/* ── Container ───────────────────────────────────────────── */
.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ── Typography ──────────────────────────────────────────── */
h1, h2, h3, h4, h5 {
  font-weight: 700;
  line-height: 1.25;
  color: #0d1757;
}
h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2rem); }
h3 { font-size: 1.15rem; }
h4 { font-size: 1rem; }

p { color: var(--gray-700); }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 8px;
  font-weight: 600;
  font-size: .95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--orange);
  color: #fff;
  border-color: var(--orange);
  box-shadow: 0 4px 14px rgba(255,107,53,.35);
}
.btn-primary:hover {
  background: var(--orange-dk);
  border-color: var(--orange-dk);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255,107,53,.45);
}
.btn-outline {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}
.btn-outline:hover {
  background: var(--navy);
  color: #fff;
  transform: translateY(-2px);
}
.btn-outline-white {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,.7);
}
.btn-outline-white:hover {
  background: rgba(255,255,255,.15);
  border-color: #fff;
}
.btn-lg { padding: 15px 34px; font-size: 1rem; }

/* ── Header ──────────────────────────────────────────────── */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0;
}
.logo img { height: 48px; width: auto; }
.logo { display: flex; align-items: center; }

/* Hotline header */
.header-contact {
  display: flex;
  align-items: center;
  gap: 12px;
}
.hotline {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 8px;
  background: var(--navy-light);
  transition: var(--transition);
}
.hotline:hover { background: var(--navy); color: #fff; }
.hotline:hover .hotline-label,
.hotline:hover .hotline-num { color: #fff; }
.hotline-icon { font-size: 1.2rem; }
.hotline-label { display: block; font-size: 11px; color: var(--gray-500); line-height: 1; }
.hotline-num { display: block; font-size: 1rem; font-weight: 800; color: var(--navy); line-height: 1.3; }
.zalo-btn {
  background: #0068ff;
  color: #fff;
  padding: 10px 18px;
  border-radius: 8px;
  font-weight: 600;
  font-size: .9rem;
  transition: var(--transition);
}
.zalo-btn:hover { background: #0055cc; transform: translateY(-1px); }

/* Nav */
.main-nav { padding: 0; }
.main-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}
.main-nav ul li a {
  padding: 8px 14px;
  border-radius: 6px;
  font-size: .9rem;
  font-weight: 500;
  color: var(--gray-700);
  transition: var(--transition);
  white-space: nowrap;
}
.main-nav ul li a:hover,
.main-nav ul li a[aria-current="page"] {
  background: var(--navy-light);
  color: var(--navy);
}

/* Dropdown */
.has-dropdown { position: relative; }
.dropdown {
  display: none !important;
  position: absolute;
  top: 100%;
  left: 0;
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  min-width: 220px;
  padding: 8px;
  z-index: 100;
}
.has-dropdown:hover .dropdown-DISABLED,
.has-dropdown.open .dropdown { display: block !important; }
.dropdown li a {
  display: block;
  padding: 9px 14px !important;
  border-radius: 6px;
  font-size: .88rem !important;
  color: var(--gray-700) !important;
}
.dropdown li a:hover {
  background: var(--gray-50) !important;
  color: var(--navy) !important;
}

/* Nav toggle mobile */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: var(--transition);
}

/* ── Breadcrumb ──────────────────────────────────────────── */
.breadcrumb-nav {
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-200);
  padding: 10px 0;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: .85rem;
  color: var(--gray-500);
}
.breadcrumb li:not(:last-child)::after {
  content: '›';
  margin-left: 8px;
  color: var(--gray-200);
}
.breadcrumb a { color: var(--navy); }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb [aria-current="page"] { color: var(--gray-500); }

/* ── Section Helpers ─────────────────────────────────────── */
.section { padding: 64px 0; }
.section-gray { background: var(--gray-50); padding: 64px 0; }
.section-title {
  text-align: center;
  margin-bottom: 40px;
}
.section-title h2 { margin-bottom: 10px; }
.section-title p { color: var(--gray-500); font-size: 1.05rem; }
.section-sub {
  text-align: center;
  color: var(--gray-500);
  margin-bottom: 36px;
  font-size: 1rem;
}
.text-center { text-align: center; }

/* ── Hero (Trang chủ) ────────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy) 60%, #283593 100%);
  color: #fff;
  padding: 80px 0 72px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -120px; right: -120px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(255,107,53,.15) 0%, transparent 70%);
  pointer-events: none;
}
.hero h1 { color: #fff; margin-bottom: 16px; }
.hero p { color: rgba(255,255,255,.85); font-size: 1.1rem; margin-bottom: 32px; max-width: 600px; }
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }

/* ── Service Hero (Trang dịch vụ) ───────────────────────── */
.service-hero {
  padding: 64px 0 56px;
  color: #fff;
}
.service-hero .hero-content { max-width: 680px; }
.hero-badge {
  display: inline-block;
  background: rgba(255,107,53,.2);
  border: 1px solid rgba(255,107,53,.5);
  color: #ffb38a;
  padding: 5px 14px;
  border-radius: 20px;
  font-size: .82rem;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: .5px;
}
.service-hero h1 { color: #fff; font-size: clamp(1.7rem,4vw,2.6rem); margin-bottom: 14px; }
.service-hero h1 .highlight { color: #ff9a6c; }
.hero-desc { color: rgba(255,255,255,.85); font-size: 1.05rem; margin-bottom: 28px; max-width: 600px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 24px; }
.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}
.hero-trust span {
  background: rgba(255,255,255,.1);
  color: rgba(255,255,255,.9);
  padding: 5px 12px;
  border-radius: 20px;
  font-size: .8rem;
  border: 1px solid rgba(255,255,255,.2);
}

/* ── Services Grid (Trang chủ) ───────────────────────────── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.service-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 4px;
  background: linear-gradient(90deg, var(--navy), var(--orange));
  transform: scaleX(0);
  transition: var(--transition);
  transform-origin: left;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.service-card:hover::before { transform: scaleX(1); }
.service-icon {
  font-size: 2.2rem;
  margin-bottom: 14px;
  display: block;
}
.service-card h3 {
  margin-bottom: 10px;
  color: var(--navy-dark);
}
.service-card p {
  font-size: .9rem;
  margin-bottom: 16px;
  color: var(--gray-500);
}
.service-card a {
  color: var(--navy);
  font-weight: 600;
  font-size: .9rem;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.service-card a::after { content: ' →'; }
.service-card a:hover { color: var(--orange); }

/* ── Why Grid ────────────────────────────────────────────── */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}
.why-item, .why-card {
  text-align: center;
  padding: 32px 20px;
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}
.why-item:hover, .why-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--navy-light);
  transform: translateY(-4px);
}
.why-icon, .why-card .why-icon {
  font-size: 2.4rem;
  margin-bottom: 14px;
  display: block;
}
.why-item h4, .why-card h3 {
  margin-bottom: 10px;
  color: var(--navy-dark);
}
.why-item p, .why-card p { font-size: .9rem; color: var(--gray-500); }

/* ── Pricing Table ───────────────────────────────────────── */
.section-pricing { padding: 64px 0; }
.pricing-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--gray-200);
}
.pricing-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
}
.pricing-table thead tr {
  background: linear-gradient(135deg, var(--navy-dark), var(--navy));
  color: #fff;
}
.pricing-table th {
  padding: 14px 18px;
  text-align: left;
  font-size: .85rem;
  font-weight: 600;
  letter-spacing: .4px;
  white-space: nowrap;
}
.pricing-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--gray-100);
  font-size: .9rem;
  color: var(--gray-700);
  vertical-align: middle;
}
.pricing-table tr:last-child td { border-bottom: none; }
.pricing-table tr:hover td { background: var(--gray-50); }
.row-highlight td { background: #fff8f5 !important; }
.row-highlight:hover td { background: #fff0e8 !important; }
.price strong {
  font-size: 1.05rem;
  color: var(--orange);
  font-weight: 800;
}
.badge-popular {
  background: var(--orange);
  color: #fff;
  font-size: .72rem;
  padding: 2px 8px;
  border-radius: 10px;
  font-weight: 700;
  margin-left: 6px;
  vertical-align: middle;
}
.btn-book {
  display: inline-block;
  padding: 7px 16px;
  background: var(--navy);
  color: #fff;
  border-radius: 6px;
  font-size: .82rem;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-book:hover { background: var(--navy-dark); transform: translateY(-1px); }
.btn-book-hot { background: var(--orange); }
.btn-book-hot:hover { background: var(--orange-dk); }
.pricing-notes {
  margin-top: 16px;
  padding: 14px 18px;
  background: var(--gray-50);
  border-radius: var(--radius);
  border-left: 4px solid var(--orange);
  font-size: .88rem;
  color: var(--gray-700);
}

/* ── Guide Grid ──────────────────────────────────────────── */
.section-guide { padding: 64px 0; }
.guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 32px;
}
.guide-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 28px;
  border-top: 4px solid var(--navy);
}
.guide-card h3 {
  margin-bottom: 16px;
  color: var(--navy-dark);
  font-size: 1rem;
}
.guide-card ul { display: flex; flex-direction: column; gap: 8px; }
.guide-card li {
  font-size: .88rem;
  color: var(--gray-700);
  padding-left: 14px;
  position: relative;
}
.guide-card li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--orange);
  font-weight: 700;
}
.guide-cta {
  text-align: center;
  padding: 28px;
  background: var(--navy-light);
  border-radius: var(--radius-lg);
}
.guide-cta p { margin-bottom: 16px; color: var(--navy-dark); font-size: 1rem; }

/* ── Process Steps ───────────────────────────────────────── */
.section-process { padding: 64px 0; }
.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  counter-reset: steps;
}
.process-step {
  text-align: center;
  padding: 32px 20px;
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  position: relative;
}
.step-num {
  width: 48px; height: 48px;
  background: linear-gradient(135deg, var(--navy), var(--orange));
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 800;
  margin: 0 auto 16px;
  box-shadow: 0 4px 12px rgba(26,35,126,.3);
}
.process-step h3 {
  margin-bottom: 10px;
  font-size: 1rem;
  color: var(--navy-dark);
}
.process-step p { font-size: .88rem; color: var(--gray-500); }
.process-step a { color: var(--orange); font-weight: 600; }

/* ── Area Grid ───────────────────────────────────────────── */
.section-area { padding: 64px 0; }
.area-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.area-group {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 24px;
  border-left: 4px solid var(--navy);
}
.area-group h3 {
  margin-bottom: 10px;
  font-size: .95rem;
  color: var(--navy-dark);
}
.area-group p { font-size: .88rem; color: var(--gray-500); line-height: 1.7; }

/* ── FAQ ─────────────────────────────────────────────────── */
.section-faq { padding: 64px 0; }
.faq-list { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--navy-light); }
.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 18px 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  cursor: pointer;
  font-size: .95rem;
  font-weight: 600;
  color: var(--navy-dark);
  text-align: left;
  transition: var(--transition);
  font-family: inherit;
}
.faq-question:hover { background: var(--gray-50); }
.faq-question[aria-expanded="true"] { background: var(--navy-light); color: var(--navy); }
.faq-icon {
  flex-shrink: 0;
  width: 26px; height: 26px;
  background: var(--navy-light);
  color: var(--navy);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
}
.faq-answer {
  padding: 16px 22px 20px;
  border-top: 1px solid var(--gray-100);
  background: var(--gray-50);
}
.faq-answer p { font-size: .9rem; color: var(--gray-700); line-height: 1.8; }

/* ── Related Services ────────────────────────────────────── */
.section-related { padding: 64px 0; background: var(--gray-50); }
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.related-card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: var(--transition);
  text-decoration: none;
}
.related-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--navy-light);
  transform: translateY(-4px);
}
.related-icon { font-size: 2rem; }
.related-card h3 { font-size: 1rem; color: var(--navy-dark); }
.related-card p { font-size: .88rem; color: var(--gray-500); flex: 1; }
.related-link {
  color: var(--orange);
  font-weight: 600;
  font-size: .88rem;
  margin-top: auto;
}

/* ── CTA Final ───────────────────────────────────────────── */
.section-cta-final { padding: 64px 0; }
.section-cta-final h2 { color: #fff; margin-bottom: 12px; }

/* ── Reviews Component ───────────────────────────────────── */
.section-reviews { padding: 64px 0; }
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.review-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}
.review-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.review-img-wrap { height: 180px; overflow: hidden; }
.review-img-wrap img { width: 100%; height: 180px; object-fit: cover; }
.review-img-placeholder-card {
  height: 180px;
  background: var(--navy-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
}
.review-body { padding: 16px; }
.review-stars { color: #ffd600; font-size: 16px; margin-bottom: 8px; }
.review-text { font-size: 13px; font-style: italic; color: #444; line-height: 1.6; margin-bottom: 10px; }
.review-meta { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.review-tag {
  background: var(--navy);
  color: #fff;
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 4px;
  font-weight: 600;
}
.review-event { background: #f5f5f5; color: #555; font-size: 11px; padding: 3px 8px; border-radius: 4px; }
.review-footer { display: flex; flex-wrap: wrap; gap: 8px; font-size: 12px; color: #888; }
.review-cta-note { text-align: center; font-size: 13px; color: #888; font-style: italic; margin-top: 16px; }
.review-cta-note a { color: var(--navy); font-weight: 600; }

/* Proof */
.proof-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.proof-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
}
.proof-tag {
  display: inline-block;
  background: var(--navy);
  color: #fff;
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 4px;
  margin-bottom: 6px;
  font-weight: 600;
}
.proof-info p { font-size: 13px; color: #333; margin-bottom: 4px; }
.proof-meta { font-size: 12px; color: #888; }
.proof-note { font-size: 13px; color: #888; font-style: italic; }
.proof-note a { color: var(--navy); }

/* ── Footer ──────────────────────────────────────────────── */
.site-footer {
  background: var(--navy-dark);
  color: rgba(255,255,255,.85);
  padding: 56px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-logo { margin-bottom: 16px; }
.footer-col p {
  font-size: .88rem;
  color: rgba(255,255,255,.65);
  line-height: 1.8;
  margin-bottom: 4px;
}
.footer-col address {
  font-style: normal;
  font-size: .88rem;
  color: rgba(255,255,255,.65);
  line-height: 2;
}
.footer-col address a { color: rgba(255,255,255,.8); }
.footer-col address a:hover { color: var(--orange); }
.footer-col h3 {
  color: #fff;
  font-size: .95rem;
  margin-bottom: 14px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 8px; }
.footer-col ul li a {
  font-size: .88rem;
  color: rgba(255,255,255,.65);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-col ul li a::before { content: '›'; color: var(--orange); }
.footer-col ul li a:hover { color: #fff; padding-left: 4px; }

/* Footer CTA col */
.footer-cta { display: flex; flex-direction: column; gap: 12px; }
.btn-footer-call {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 20px;
  background: var(--orange);
  color: #fff;
  border-radius: 8px;
  font-weight: 700;
  font-size: .95rem;
  transition: var(--transition);
  text-align: center;
}
.btn-footer-call span { font-size: .75rem; font-weight: 400; opacity: .85; }
.btn-footer-call:hover { background: var(--orange-dk); transform: translateY(-2px); }
.btn-footer-zalo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  background: #0068ff;
  color: #fff;
  border-radius: 8px;
  font-weight: 600;
  font-size: .9rem;
  transition: var(--transition);
}
.btn-footer-zalo:hover { background: #0055cc; transform: translateY(-2px); }
.footer-hours {
  font-size: .82rem !important;
  color: rgba(255,255,255,.55) !important;
  line-height: 1.7 !important;
  text-align: center;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 18px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}
.footer-bottom p { font-size: .82rem; color: rgba(255,255,255,.45); margin: 0; }
.dev-badge {
  background: rgba(255,107,53,.2);
  color: var(--orange);
  padding: 3px 10px;
  border-radius: 10px;
  font-size: .75rem;
  font-weight: 600;
  border: 1px solid rgba(255,107,53,.3);
}

/* ── Zalo Float ──────────────────────────────────────────── */
.zalo-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 999;
  width: 56px; height: 56px;
  border-radius: 50%;
  box-shadow: 0 4px 16px rgba(0,104,255,.4);
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  background: #0068ff;
  overflow: hidden;
}
.zalo-float img { width: 56px; height: 56px; }
.zalo-float:hover { transform: scale(1.1); box-shadow: 0 6px 24px rgba(0,104,255,.5); }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .header-inner { flex-wrap: wrap; }
  .nav-toggle { display: flex; }
  .main-nav {
    display: none;
    width: 100%;
    padding: 12px 0;
    border-top: 1px solid var(--gray-200);
  }
  .main-nav.nav-open { display: block; }
  .main-nav ul { flex-direction: column; gap: 2px; }
  .main-nav ul li a { display: block; }
  .dropdown { position: static; box-shadow: none; border: none; background: var(--gray-50); }
  .has-dropdown.open .dropdown { display: block !important; }
  .header-contact { gap: 8px; }
  .zalo-btn { display: none; }

  .hero { padding: 48px 0; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { text-align: center; justify-content: center; }

  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { justify-content: center; text-align: center; }

  .pricing-table th:nth-child(2),
  .pricing-table td:nth-child(2) { display: none; }

  .process-steps { grid-template-columns: 1fr; }
  .process-step { text-align: left; display: flex; gap: 16px; align-items: flex-start; }
  .step-num { flex-shrink: 0; margin: 0; }
}

@media (max-width: 480px) {
  .section, .section-gray { padding: 44px 0; }
  .btn-lg { padding: 13px 24px; }
  .pricing-table th:nth-child(4),
  .pricing-table td:nth-child(4) { display: none; }
}

/* === TBS CSS LOGO === */
.tbs-logo-wrap { display:flex; flex-direction:column; line-height:1; font-family:'Segoe UI',Arial,sans-serif; }
.tbs-brand { font-size:22px; font-weight:800; color:#1B3A6B; letter-spacing:-0.3px; }
.tbs-accent { font-size:22px; font-weight:800; color:#E05A1B; letter-spacing:-0.3px; }
.tbs-tagline { font-size:9px; font-weight:500; color:#64748b; letter-spacing:1.4px; text-transform:uppercase; margin-top:2px; }
.logo .tbs-brand, .logo .tbs-accent, .logo .tbs-tagline { display:inline; }
.logo .tbs-tagline { display:block; }
.tbs-row { display:flex; align-items:baseline; }