/* =====================================================
   Hưng Thịnh Solution — Website CSS
   Brand: Navy #003366 | Red #CC0000 | Font: Outfit
   ===================================================== */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* ── 1. CSS VARIABLES ─────────────────────────────── */
:root {
  --navy:       #003366;
  --navy-dark:  #1E3A5F;
  --navy-light: #EEF2F7;
  --red:        #CC0000;
  --red-dark:   #AA0000;
  --blue:       #2563EB;
  --bg-light:   #F8F9FA;
  --bg-white:   #FFFFFF;
  --text-dark:  #1A1A1A;
  --text-muted: #6B7280;
  --border:     #E0E0E0;
  --zalo-blue:  #0068FF;
  --green:      #16A34A;

  --shadow-sm:  0 2px 8px rgba(0,0,0,0.07);
  --shadow-md:  0 4px 20px rgba(0,0,0,0.12);
  --shadow-lg:  0 8px 40px rgba(0,0,0,0.15);

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;

  --transition: 0.25s ease;
  --font:       'Outfit', 'Segoe UI', Arial, sans-serif;
  --max-width:  1200px;
}

/* ── 2. RESET & BASE ──────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--font);
  color: var(--text-dark);
  background: var(--bg-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: var(--blue); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--red); }
ul { list-style: none; }

/* ── 3. UTILITIES ─────────────────────────────────── */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

.section--gray { background: var(--bg-light); }
.section--navy { background: var(--navy); color: white; }
.section--navy-dark { background: var(--navy-dark); color: white; }
.section--red { background: var(--red); color: white; }

.section-title {
  font-size: clamp(1.6rem, 5vw, 2.2rem);
  font-weight: 700;
  color: var(--navy);
  text-align: center;
  margin-bottom: 12px;
  line-height: 1.3;
}

.section-title--white { color: white; }

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: 48px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.section-subtitle--white { color: rgba(255,255,255,0.85); }

.section-header { margin-bottom: 48px; }

.red-line {
  width: 60px;
  height: 4px;
  background: var(--red);
  border-radius: 2px;
  margin: 12px auto 0;
}

.text-center { text-align: center; }
.text-red { color: var(--red) !important; }
.text-navy { color: var(--navy) !important; }
.text-muted { color: var(--text-muted); }
.text-white { color: white !important; }

/* Responsive Grid Utilities */
.grid-2col-resp {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 5vw, 60px);
  align-items: center;
}

.grid-4col-resp {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.grid-3col-resp {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

@media (max-width: 1100px) {
  .grid-4col-resp { grid-template-columns: repeat(2, 1fr); }
  .grid-3col-resp { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .grid-2col-resp { grid-template-columns: 1fr; gap: 32px; }
  .grid-3col-resp { grid-template-columns: 1fr; }
  .grid-4col-resp { grid-template-columns: 1fr; }
}


.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}
.badge--red { background: var(--red); color: white; }
.badge--navy { background: var(--navy); color: white; }
.badge--green { background: var(--green); color: white; }
.badge--outline { border: 1px solid var(--border); color: var(--text-muted); }

/* ── 4. BUTTONS ───────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: all var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
  text-decoration: none;
}

.btn-primary {
  background: var(--red);
  color: white;
  border-color: var(--red);
}
.btn-primary:hover {
  background: var(--red-dark);
  border-color: var(--red-dark);
  color: white;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-navy {
  background: var(--navy);
  color: white;
  border-color: var(--navy);
}
.btn-navy:hover {
  background: var(--navy-dark);
  border-color: var(--navy-dark);
  color: white;
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}
.btn-outline:hover {
  background: var(--navy);
  color: white;
}

.btn-outline-white {
  background: transparent;
  color: white;
  border-color: rgba(255,255,255,0.7);
}
.btn-outline-white:hover {
  background: white;
  color: var(--navy);
  border-color: white;
}

.btn-lg { padding: 16px 36px; font-size: 1.05rem; }
.btn-sm { padding: 8px 18px; font-size: 0.85rem; }
.btn-full { width: 100%; justify-content: center; }

/* ── 5. NAVIGATION ────────────────────────────────── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 2000;
  background: white;
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.navbar .container {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 96px;
}

.nav-logo img {
  height: 104px;
  width: auto;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}

.nav-links a {
  padding: 8px 16px;
  color: var(--text-dark);
  font-weight: 500;
  font-size: 0.97rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  border-bottom: 2px solid transparent;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--red);
  background: rgba(204,0,0,0.06);
  border-bottom-color: var(--red);
}

/* ── Dropdown Dịch vụ ── */
.nav-dropdown {
  position: relative;
}

.nav-dropdown-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 8px 16px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  color: var(--text-dark);
  font-family: inherit;
  font-weight: 500;
  font-size: 0.97rem;
  transition: all var(--transition);
  white-space: nowrap;
}

.nav-dropdown-btn:hover,
.nav-dropdown-btn.active {
  color: var(--red);
  background: rgba(204,0,0,0.06);
  border-bottom-color: var(--red);
}

.nav-dropdown-arrow {
  font-size: 0.7rem;
  transition: transform 0.2s;
  margin-top: 1px;
}

.nav-dropdown.open .nav-dropdown-arrow {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 210px;
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  z-index: 200;
  overflow: hidden;
}

.nav-dropdown.open .nav-dropdown-menu {
  display: block;
}

.nav-dropdown-menu a {
  display: block;
  padding: 11px 18px;
  color: var(--text-dark);
  font-weight: 500;
  font-size: 0.92rem;
  border-radius: 0 !important;
  border-bottom: 1px solid var(--border) !important;
  transition: all var(--transition);
}

.nav-dropdown-menu a:last-child {
  border-bottom: none !important;
}

.nav-dropdown-menu a:hover,
.nav-dropdown-menu a.active {
  color: var(--red);
  background: rgba(204,0,0,0.06);
  border-bottom-color: var(--border) !important;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

.nav-phone {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--navy);
  font-weight: 600;
  font-size: 0.9rem;
}
.nav-phone:hover { color: var(--red); }
.nav-phone svg { width: 16px; height: 16px; }

.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--text-dark);
  position: relative;
  width: 40px;
  height: 40px;
  z-index: 2001;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: currentColor;
  margin: 5px auto;
  transition: var(--transition);
}

.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── 6. HERO ──────────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-dark) 60%, #0a2240 100%);
  color: white;
  padding: 100px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255,255,255,0.04) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -5%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(204,0,0,0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.hero .container { position: relative; z-index: 1; }

.hero-eyebrow {
  display: inline-block;
  background: rgba(204,0,0,0.2);
  border: 1px solid rgba(204,0,0,0.4);
  color: #ff9999;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(2.2rem, 8vw, 3.8rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 20px;
  max-width: 700px;
}

.hero h1 span { color: #ff6666; }

.hero-sub {
  font-size: 1.15rem;
  opacity: 0.85;
  margin-bottom: 40px;
  max-width: 560px;
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

.hero--page {
  padding: 60px 0 50px;
}

.hero--page h1 { font-size: 2.2rem; margin-bottom: 12px; }

.breadcrumb {
  font-size: 0.85rem;
  opacity: 0.7;
  margin-bottom: 16px;
}
.breadcrumb a { color: rgba(255,255,255,0.7); }
.breadcrumb a:hover { color: white; }
.breadcrumb span { margin: 0 6px; }

/* ── 7. STATS BAR ─────────────────────────────────── */
.stats-bar {
  background: var(--navy-dark);
  color: white;
  padding: 32px 0;
}

.stats-bar .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.stat-item {
  text-align: center;
  padding: 16px 24px;
  border-right: 1px solid rgba(255,255,255,0.15);
}
.stat-item:last-child { border-right: none; }

.stat-number {
  font-size: 2.2rem;
  font-weight: 800;
  color: white;
  line-height: 1;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.85rem;
  opacity: 0.75;
}

/* ── 8. SERVICE CARDS (Overview) ──────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: var(--border);
  transition: background var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: var(--navy-light);
}

.card:hover::before { background: var(--red); }

.card-icon {
  width: 56px;
  height: 56px;
  background: var(--navy-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.6rem;
  flex-shrink: 0;
}
.card-icon svg {
  width: 30px;
  height: 30px;
  color: var(--navy);
  stroke: currentColor;
  fill: none;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}

.card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.6;
}

.card-price {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--red);
  margin-bottom: 16px;
}

.card-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--navy);
  display: flex;
  align-items: center;
  gap: 4px;
}
/* Stretched link: ::after phủ toàn bộ .card (là nearest position:relative ancestor) */
.card-link::after {
  content: '';
  position: absolute;
  inset: 0;
}
.card-link:hover { color: var(--red); gap: 8px; }

/* ── 9. PRICING CARDS ─────────────────────────────── */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: start;
}

.pricing-grid--2col {
  grid-template-columns: repeat(2, 1fr);
  max-width: 860px;
  margin: 0 auto;
}

.pricing-card {
  background: white;
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  position: relative;
  transition: all var(--transition);
}

.pricing-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.pricing-card--featured {
  background: var(--navy);
  border-color: var(--navy);
  color: white;
  transform: scale(1.03);
}

.pricing-card--featured:hover {
  transform: scale(1.03) translateY(-4px);
}

.pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--red);
  color: white;
  padding: 4px 16px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.pricing-name {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: inherit;
}

.pricing-card:not(.pricing-card--featured) .pricing-name { color: var(--navy); }

.pricing-target {
  font-size: 0.82rem;
  opacity: 0.7;
  margin-bottom: 24px;
}

.pricing-price {
  margin-bottom: 28px;
}

.pricing-amount {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  color: inherit;
}

.pricing-card:not(.pricing-card--featured) .pricing-amount { color: var(--red); }

.pricing-period {
  font-size: 0.85rem;
  opacity: 0.7;
}

.pricing-original {
  font-size: 1rem;
  text-decoration: line-through;
  opacity: 0.5;
  margin-bottom: 4px;
}

.pricing-saving {
  display: inline-block;
  background: var(--red);
  color: white;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 0.78rem;
  font-weight: 700;
  margin-top: 6px;
}

.pricing-features {
  margin-bottom: 28px;
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 7px 0;
  font-size: 0.9rem;
  border-bottom: 1px solid rgba(0,0,0,0.06);
}

.pricing-card--featured .pricing-features li {
  border-bottom-color: rgba(255,255,255,0.1);
}

.pricing-features li:last-child { border-bottom: none; }

.check {
  color: var(--green);
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.pricing-card--featured .check { color: #7FE0A0; }

/* ── 10. COMPARE TABLE ────────────────────────────── */
.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.compare-table th {
  background: var(--navy);
  color: white;
  padding: 14px 16px;
  text-align: center;
  font-weight: 600;
  border: 1px solid rgba(255,255,255,0.1);
}

.compare-table th:first-child { text-align: left; border-radius: 8px 0 0 0; }
.compare-table th:last-child { border-radius: 0 8px 0 0; }

.compare-table td {
  padding: 12px 16px;
  border: 1px solid var(--border);
  vertical-align: middle;
  text-align: center;
}

.compare-table td:first-child {
  text-align: left;
  font-weight: 500;
  background: var(--bg-light);
}

.compare-table tr:last-child td:first-child { border-radius: 0 0 0 8px; }
.compare-table tr:last-child td:last-child { border-radius: 0 0 8px 0; }

.compare-table tr:hover td { background: rgba(0,51,102,0.04); }
.compare-table tr:hover td:first-child { background: rgba(0,51,102,0.08); }

.check-green { color: var(--green); font-size: 1.1rem; }
.check-red { color: var(--red); }
.check-partial { color: #F59E0B; }

/* ── 11. WHY-US / FEATURES ────────────────────────── */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.why-item {
  text-align: center;
  padding: 32px 24px;
  background: white;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.why-item:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--navy-light);
  transform: translateY(-4px);
}

.why-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  background: var(--navy-light);
  border-radius: 12px;
  margin: 0 auto 14px;
}
.why-icon svg {
  width: 26px;
  height: 26px;
  color: var(--navy);
  stroke: currentColor;
  fill: none;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.why-item h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 10px;
}

.why-item p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ── 12. STEPS ────────────────────────────────────── */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
}

.step-item {
  text-align: center;
  padding: 32px 24px;
}

.step-number {
  width: 56px;
  height: 56px;
  background: var(--navy);
  color: white;
  border-radius: 50%;
  font-size: 1.4rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.step-item h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 10px;
}

.step-item p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ── 13. GUARANTEE BADGES ─────────────────────────── */
.guarantee-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.guarantee-item {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-md);
  padding: 24px 16px;
  text-align: center;
}

.guarantee-icon {
  font-size: 2rem;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  background: rgba(255,255,255,0.12);
  border-radius: 14px;
  margin: 0 auto 14px;
}
.guarantee-icon svg {
  width: 28px;
  height: 28px;
  stroke: white;
  fill: none;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.guarantee-item h4 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.guarantee-item p {
  font-size: 0.8rem;
  opacity: 0.75;
}

/* ── 14. PROMO BANNER ─────────────────────────────── */
.promo-banner {
  background: linear-gradient(135deg, var(--navy-dark), var(--navy));
  color: white;
  padding: 60px 0;
  text-align: center;
}

.promo-banner h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.promo-banner p {
  font-size: 1.05rem;
  opacity: 0.85;
  margin-bottom: 32px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.cta-banner {
  background: var(--red);
  color: white;
  padding: 60px 0;
  text-align: center;
}

.cta-banner h2 {
  font-size: 1.9rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.cta-banner p {
  font-size: 1rem;
  opacity: 0.9;
  margin-bottom: 32px;
}

.cta-banner .cta-group {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  align-items: center;
}

/* ── 15. SLA / PROCESS TIMELINE ───────────────────── */
.sla-block {
  background: var(--navy);
  color: white;
  border-radius: var(--radius-md);
  padding: 48px 40px;
}

.sla-block h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 32px;
  text-align: center;
}

.sla-timeline {
  display: flex;
  align-items: center;
  gap: 0;
  overflow-x: auto;
}

.service-compare {
  margin-top: 32px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.sla-step {
  flex: 1;
  text-align: center;
  position: relative;
  min-width: 120px;
}

.sla-step::after {
  content: '→';
  position: absolute;
  right: -12px;
  top: 20px;
  font-size: 1.2rem;
  opacity: 0.5;
}

.sla-step:last-child::after { display: none; }

.sla-dot {
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,0.15);
  border: 2px solid rgba(255,255,255,0.4);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 10px;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.sla-dot svg {
  width: 22px;
  height: 22px;
  stroke: white;
  fill: none;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.sla-step h4 { font-size: 0.82rem; font-weight: 700; margin-bottom: 4px; }
.sla-step p { font-size: 0.75rem; opacity: 0.7; }

/* ── 16. PROCESS TIMELINE (Web) ───────────────────── */
.process-timeline {
  display: flex;
  gap: 0;
  position: relative;
  overflow: hidden;
}

.process-step {
  flex: 1;
  padding: 32px 20px;
  text-align: center;
  position: relative;
  background: white;
  border: 1px solid var(--border);
  border-right: none;
}

.process-step:last-child { border-right: 1px solid var(--border); border-radius: 0 var(--radius-md) var(--radius-md) 0; }
.process-step:first-child { border-radius: var(--radius-md) 0 0 var(--radius-md); }

.process-step::after {
  content: '▶';
  position: absolute;
  right: -14px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.1rem;
  color: var(--navy);
  z-index: 1;
  background: white;
  padding: 2px;
}

.process-step:last-child::after { display: none; }

.process-num {
  width: 40px;
  height: 40px;
  background: var(--navy);
  color: white;
  border-radius: 50%;
  font-size: 1rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
}

.process-step h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 6px;
}

.process-step p {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ── 17. FAQ ACCORDION ────────────────────────────── */
.faq-list { max-width: 760px; margin: 0 auto; }

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
  overflow: hidden;
}

.faq-item summary {
  padding: 18px 20px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  list-style: none;
  color: var(--navy);
  background: white;
  transition: background var(--transition);
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: '+';
  font-size: 1.3rem;
  color: var(--red);
  transition: transform var(--transition);
  flex-shrink: 0;
}

.faq-item[open] summary {
  background: var(--navy-light);
}

.faq-item[open] summary::after {
  content: '−';
}

.faq-answer {
  padding: 16px 20px 20px;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
  border-top: 1px solid var(--border);
}

/* ── 18. TAB TOGGLE (Web page) ────────────────────── */
.tab-toggle {
  display: flex;
  justify-content: center;
  gap: 0;
  margin-bottom: 48px;
}

.tab-toggle input[type="radio"] { display: none; }

.tab-toggle label {
  padding: 12px 36px;
  background: white;
  border: 2px solid var(--navy);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  color: var(--navy);
  transition: all var(--transition);
}

.tab-toggle label:first-of-type {
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  border-right: none;
}

.tab-toggle label:last-of-type {
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

#tab-onetime:checked ~ .tab-toggle label[for="tab-onetime"],
#tab-waas:checked ~ .tab-toggle label[for="tab-waas"] {
  background: var(--navy);
  color: white;
}

.tab-panel { display: none; }
#tab-onetime:checked ~ .tab-content #panel-onetime,
#tab-waas:checked ~ .tab-content #panel-waas { display: block; }

/* ── 19. CONTACT FORM ─────────────────────────────── */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.form-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 40px;
}

.form-group { margin-bottom: 20px; }

.form-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 6px;
}

.form-label .req { color: var(--red); margin-left: 2px; }

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.92rem;
  color: var(--text-dark);
  background: white;
  transition: border-color var(--transition);
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(0,51,102,0.08);
}

.form-textarea { resize: vertical; min-height: 120px; }

.contact-info-card {
  background: var(--navy);
  color: white;
  border-radius: var(--radius-md);
  padding: 40px;
}

.contact-info-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 28px;
}

.contact-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 24px;
}

.contact-item-icon {
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.contact-item-text h4 {
  font-size: 0.82rem;
  opacity: 0.7;
  margin-bottom: 2px;
  font-weight: 500;
}

.contact-item-text a,
.contact-item-text p {
  font-size: 0.95rem;
  font-weight: 600;
  color: white;
}

.contact-item-text a:hover { color: #ffcccc; }

.hours-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.2);
}

.hours-item { font-size: 0.85rem; opacity: 0.85; }
.hours-label { font-weight: 600; margin-bottom: 2px; }

/* ── 20. QUICK CONTACT CARDS ──────────────────────── */
.quick-contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.quick-card {
  background: white;
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  transition: all var(--transition);
}

.quick-card:hover {
  border-color: var(--navy);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.quick-card .quick-icon {
  font-size: 2.2rem;
  margin-bottom: 12px;
  display: block;
}

.quick-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 6px;
}

.quick-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

/* ── 21. MAP ──────────────────────────────────────── */
.map-section iframe {
  width: 100%;
  height: 400px;
  border: none;
  border-radius: var(--radius-md);
  display: block;
}

/* ── 22. ZALO FLOAT ───────────────────────────────── */
.zalo-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 9999;
  width: 60px;
  height: 60px;
  background: var(--zalo-blue);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  font-weight: 800;
  box-shadow: 0 4px 20px rgba(0,104,255,0.4);
  transition: all var(--transition);
  animation: zalo-pulse 2.5s ease-in-out infinite;
  text-decoration: none;
}

.zalo-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(0,104,255,0.55);
  color: white;
  animation: none;
}

.zalo-float::after {
  content: 'Chat Zalo';
  position: absolute;
  right: 72px;
  background: var(--text-dark);
  color: white;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

.zalo-float:hover::after { opacity: 1; }

@keyframes zalo-pulse {
  0%, 100% { box-shadow: 0 4px 20px rgba(0,104,255,0.4); }
  50% { box-shadow: 0 4px 32px rgba(0,104,255,0.7), 0 0 0 8px rgba(0,104,255,0.1); }
}

/* ── 23. FOOTER ───────────────────────────────────── */
.footer {
  background: var(--navy-dark);
  color: rgba(255,255,255,0.85);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-logo img { height: 262px; width: auto; object-fit: contain; margin-bottom: 16px; }

.footer-tagline {
  font-size: 0.88rem;
  opacity: 0.75;
  font-style: italic;
  margin-bottom: 16px;
  line-height: 1.6;
}

.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: white;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--red);
  display: inline-block;
}

.footer-col ul li { margin-bottom: 8px; }

.footer-col ul li a {
  color: rgba(255,255,255,0.7);
  font-size: 0.88rem;
  transition: color var(--transition);
}

.footer-col ul li a:hover { color: white; }

.footer-contact p {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  margin-bottom: 10px;
  color: rgba(255,255,255,0.8);
}

.footer-contact a { color: rgba(255,255,255,0.8); }
.footer-contact a:hover { color: white; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 20px 0;
  text-align: center;
  font-size: 0.82rem;
  opacity: 0.6;
}

/* ── 24. COMBO CONCEPT ────────────────────────────── */
.combo-concept {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.combo-box {
  background: var(--navy-light);
  border: 2px solid var(--navy);
  border-radius: var(--radius-md);
  padding: 20px 28px;
  text-align: center;
  font-weight: 700;
  color: var(--navy);
}

.combo-arrow {
  font-size: 1.8rem;
  color: var(--navy);
  font-weight: 700;
}

.combo-result {
  background: var(--navy);
  color: white;
  border-radius: var(--radius-md);
  padding: 20px 28px;
  text-align: center;
  font-weight: 700;
}

/* ── 25. PERSONA CARDS ────────────────────────────── */
.persona-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.persona-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  text-align: center;
  transition: all var(--transition);
}

.persona-card:hover {
  border-color: var(--navy);
  box-shadow: var(--shadow-sm);
}

.persona-icon {
  font-size: 2.5rem;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: var(--navy-light);
  border-radius: 14px;
  margin: 0 auto 14px;
}
.persona-icon svg {
  width: 30px;
  height: 30px;
  color: var(--navy);
  stroke: currentColor;
  fill: none;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.persona-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 8px;
}

.persona-card p { font-size: 0.88rem; color: var(--text-muted); }

/* ── 26. INFO BOX ─────────────────────────────────── */
.info-box {
  background: var(--navy-light);
  border-left: 4px solid var(--navy);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 16px 20px;
  font-size: 0.88rem;
  color: var(--navy-dark);
  margin: 16px 0;
}

.info-box--red {
  background: #FFF5F5;
  border-left-color: var(--red);
  color: #7F1D1D;
}

/* ── 27. MAINTENANCE GRID ─────────────────────────── */
.maint-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.maint-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: all var(--transition);
}

.maint-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.maint-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 6px;
}

.maint-price {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--red);
  margin-bottom: 16px;
}

.maint-card ul li {
  font-size: 0.88rem;
  color: var(--text-muted);
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.maint-card ul li:last-child { border-bottom: none; }

/* ── 28. SAVINGS BOX ──────────────────────────────── */
.savings-box {
  background: linear-gradient(135deg, #FFF5F5, #FFF);
  border: 2px solid var(--red);
  border-radius: var(--radius-md);
  padding: 36px 40px;
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.savings-box h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 20px;
}

.savings-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.92rem;
}

.savings-row:last-child { border-bottom: none; }

.savings-row .label { color: var(--text-muted); }
.savings-row .val { font-weight: 700; color: var(--text-dark); }
.savings-row .val--red { color: var(--red); font-size: 1.2rem; }

/* ── 29. RESPONSIVE ───────────────────────────────── */
@media (max-width: 1024px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .hero h1 { font-size: 2.6rem; }
}

@media (max-width: 768px) {
  /* Typography */
  .hero h1 { font-size: 1.9rem; }
  .hero--page h1 { font-size: 1.6rem; }
  .section-title { font-size: 1.6rem; }
  .section { padding: 56px 0; }

  /* Nav Drawer */
  .nav-links {
    display: flex;
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: white;
    flex-direction: column;
    padding: 100px 24px 40px;
    box-shadow: -10px 0 30px rgba(0,0,0,0.1);
    gap: 12px;
    align-items: stretch;
    transition: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 2000;
  }
  .nav-links.nav-open { right: 0; }
  .nav-links a { 
    text-align: left; 
    font-size: 1.1rem;
    padding: 12px 16px;
  }
  .hamburger { display: block; margin-left: auto; }
  .nav-phone { display: none; }
  .navbar .container { height: 72px; }
  .nav-actions .btn { display: none; } /* Hide btn on mobile header, keep it in drawer if needed */
  
  /* Overlay when menu is open */
  .nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1999;
  }
  .nav-overlay.active { opacity: 1; visibility: visible; }

  /* Dropdown mobile */
  .nav-dropdown { width: 100%; }
  .nav-dropdown-btn {
    width: 100%;
    justify-content: space-between;
    text-align: left;
  }
  .nav-dropdown-menu {
    position: static;
    display: none;
    box-shadow: none;
    border: none;
    border-left: 3px solid var(--border);
    border-radius: 0;
    margin: 4px 0 4px 12px;
  }
  .nav-dropdown.open .nav-dropdown-menu { display: block; }
  .nav-dropdown-menu a {
    font-size: 0.9rem;
    padding: 9px 14px;
    border-bottom: 1px solid var(--border) !important;
  }
  .nav-dropdown-menu a:last-child { border-bottom: none !important; }

  /* Grids */
  .card-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .pricing-grid--2col { grid-template-columns: 1fr; }
  .pricing-card--featured { transform: none; }
  .pricing-card--featured:hover { transform: translateY(-4px); }
  .why-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .guarantee-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-bar .container { grid-template-columns: repeat(2, 1fr); }
  .stat-item { border-right: none; border-bottom: 1px solid rgba(255,255,255,0.15); }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .contact-layout { grid-template-columns: 1fr; }
  .quick-contact-grid { grid-template-columns: 1fr; }
  .persona-grid { grid-template-columns: 1fr; }
  .maint-grid { grid-template-columns: 1fr; }

  /* Process timeline */
  .process-timeline { flex-direction: column; }
  .process-step { border: 1px solid var(--border); border-bottom: none; border-radius: 0; }
  .process-step:first-child { border-radius: var(--radius-md) var(--radius-md) 0 0; }
  .process-step:last-child { border-bottom: 1px solid var(--border); border-radius: 0 0 var(--radius-md) var(--radius-md); }
  .process-step::after { display: none; }

  /* SLA timeline */
  .sla-timeline { flex-direction: column; align-items: flex-start; gap: 16px; }
  .sla-step { text-align: left; display: flex; align-items: center; gap: 16px; min-width: auto; }
  .sla-step::after { display: none; }
  .sla-dot { margin: 0; flex-shrink: 0; }

  /* Hero */
  .hero { padding: 60px 0 50px; }
  .hero-cta { flex-direction: column; align-items: flex-start; }
  .combo-concept { flex-direction: column; }

  /* Zalo */
  .zalo-float { bottom: 16px; right: 16px; width: 52px; height: 52px; font-size: 1.2rem; }
}

/* ── 30. ACCESSIBILITY — FOCUS STYLES ──────────── */
:focus-visible {
  outline: 3px solid var(--red);
  outline-offset: 2px;
}

.btn:focus-visible {
  outline: 3px solid var(--red);
  outline-offset: 2px;
  box-shadow: 0 0 0 6px rgba(204,0,0,0.15);
}

.nav-links a:focus-visible,
.nav-dropdown-btn:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}

.form-input:focus-visible,
.form-select:focus-visible,
.form-textarea:focus-visible {
  outline: none;
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(0,51,102,0.15);
}

/* Skip to content */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  background: var(--red);
  color: white;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9rem;
  z-index: 10000;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 8px;
  color: white;
}

/* ── 31. PRINT STYLES ──────────────────────────── */
@media print {
  .navbar, .zalo-float, .cta-banner, .promo-banner,
  .hamburger, .nav-actions, .hero-cta { display: none !important; }

  body { font-size: 12pt; line-height: 1.5; color: #000; background: white; }

  .hero { background: white !important; color: #000 !important; padding: 20px 0 !important; }
  .hero h1 { color: var(--navy) !important; font-size: 1.6rem !important; }
  .hero h1 span { color: var(--red) !important; }
  .hero-eyebrow { display: none; }

  .section { padding: 20px 0; }
  .container { max-width: 100%; padding: 0 16px; }

  a { color: inherit; text-decoration: underline; }
  a[href^="tel:"], a[href^="mailto:"] { text-decoration: none; }

  .btn { border: 1px solid #ccc !important; background: none !important; color: #000 !important; }

  .footer { background: white !important; color: #000 !important; border-top: 2px solid var(--navy); }
  .footer-logo img { height: 60px !important; }
  .footer-grid { grid-template-columns: 1fr 1fr !important; }

  .card:hover, .pricing-card:hover, .why-item:hover { transform: none; box-shadow: none; }
}

/* ── 32. ABOUT PAGE STYLES ─────────────────────── */

/* About Hero */
.about-hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-dark) 60%, #0a2540 100%);
  color: white;
  padding: 100px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.about-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(204,0,0,0.15) 0%, transparent 60%);
}
.about-hero .container { position: relative; z-index: 1; }
.about-hero h1 { font-size: 2.6rem; font-weight: 800; line-height: 1.2; margin-bottom: 16px; }
.about-hero h1 span { color: #ff9999; }
.about-hero p { font-size: 1.15rem; opacity: 0.88; max-width: 680px; margin: 0 auto 32px; }

/* Company Overview */
.overview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.overview-logo img { width: 180px; margin-bottom: 20px; }
.founding-tag {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--navy-light); color: var(--navy);
  padding: 6px 14px; border-radius: 20px; font-size: 0.85rem; font-weight: 600;
  margin-bottom: 20px;
}
.values-list { margin-top: 24px; }
.values-list li {
  display: flex; align-items: flex-start; gap: 12px;
  padding: 12px 0; border-bottom: 1px solid var(--border);
}
.values-list li:last-child { border-bottom: none; }
.value-icon { font-size: 1.3rem; flex-shrink: 0; }
.value-text strong { display: block; color: var(--navy); font-weight: 600; }
.value-text span { font-size: 0.9rem; color: var(--text-muted); }

/* Vision Mission */
.vm-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.vm-card {
  background: white;
  border-radius: var(--radius-md);
  padding: 32px 24px;
  box-shadow: var(--shadow-sm);
  border-top: 4px solid transparent;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
}
.vm-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.vm-card:nth-child(1) { border-color: var(--navy); }
.vm-card:nth-child(2) { border-color: var(--red); }
.vm-card:nth-child(3) { border-color: var(--blue); }
.vm-icon { font-size: 2.5rem; margin-bottom: 16px; }
.vm-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--navy); margin-bottom: 12px; text-transform: uppercase; letter-spacing: 0.05em; }
.vm-card p { font-size: 0.95rem; color: var(--text-muted); line-height: 1.7; }

/* Ecosystem Map */
.ecosystem-wrapper {
  background: linear-gradient(135deg, var(--navy-light) 0%, #e8f0fb 100%);
  border-radius: var(--radius-lg);
  padding: 48px 40px;
}
.ecosystem-center { text-align: center; margin-bottom: 40px; }
.eco-hub {
  display: inline-block;
  background: var(--navy);
  color: white;
  padding: 20px 40px;
  border-radius: var(--radius-md);
  font-size: 1.2rem;
  font-weight: 700;
  position: relative;
}
.eco-hub::after {
  content: 'Trung tâm hệ sinh thái';
  display: block;
  font-size: 0.75rem;
  font-weight: 400;
  opacity: 0.7;
  margin-top: 4px;
}
.eco-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.eco-card {
  background: white;
  border-radius: var(--radius-md);
  padding: 24px 20px;
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--navy);
  position: relative;
}
.eco-card.accent-red { border-color: var(--red); }
.eco-card.accent-blue { border-color: var(--blue); }
.eco-card.accent-green { border-color: var(--green); }
.eco-card.accent-orange { border-color: #D97706; }
.eco-card.accent-purple { border-color: #7C3AED; }
.eco-card-icon {
  font-size: 1.8rem;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--navy-light);
  border-radius: 11px;
}
.eco-card-icon svg {
  width: 24px;
  height: 24px;
  color: var(--navy);
  stroke: currentColor;
  fill: none;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.eco-card h4 { font-size: 1rem; font-weight: 700; color: var(--navy); margin-bottom: 6px; }
.eco-card p { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 10px; line-height: 1.5; }
.eco-badge {
  display: inline-block;
  background: var(--navy-light);
  color: var(--navy);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 10px;
  margin-bottom: 4px;
}
.eco-price { font-size: 0.82rem; color: var(--red); font-weight: 600; margin-top: 8px; }
.eco-link { font-size: 0.82rem; font-weight: 600; color: var(--blue); }

/* Services Compare */
.service-compare {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.service-compare table { width: 100%; border-collapse: collapse; }
.service-compare th {
  background: var(--navy);
  color: white;
  padding: 14px 16px;
  text-align: left;
  font-size: 0.9rem;
  font-weight: 600;
}
.service-compare td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
  vertical-align: top;
}
.service-compare tr:last-child td { border-bottom: none; }
.service-compare tr:nth-child(even) td { background: var(--bg-light); }
.tag-care { background: #dbeafe; color: #1e40af; padding: 2px 8px; border-radius: 4px; font-size: 0.78rem; font-weight: 600; }
.tag-naas { background: #dcfce7; color: #166534; padding: 2px 8px; border-radius: 4px; font-size: 0.78rem; font-weight: 600; }
.tag-web { background: #fef3c7; color: #92400e; padding: 2px 8px; border-radius: 4px; font-size: 0.78rem; font-weight: 600; }
.tag-event { background: #f3e8ff; color: #6b21a8; padding: 2px 8px; border-radius: 4px; font-size: 0.78rem; font-weight: 600; }

/* Org Chart */
.org-chart {
  background: var(--navy-light);
  border-radius: var(--radius-lg);
  padding: 40px;
}
.org-top { text-align: center; margin-bottom: 32px; }
.org-box {
  display: inline-block;
  background: var(--navy);
  color: white;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.95rem;
}
.org-connector { display: flex; justify-content: center; margin-bottom: 8px; }
.org-connector::after { content: ''; width: 2px; height: 24px; background: var(--navy); opacity: 0.3; }
.org-departments { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.dept-card { background: white; border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm); }
.dept-header { padding: 12px 16px; font-weight: 700; font-size: 0.85rem; text-align: center; }
.dept-header.navy { background: var(--navy); color: white; }
.dept-header.red { background: var(--red); color: white; }
.dept-header.blue { background: var(--blue); color: white; }
.dept-header.green { background: var(--green); color: white; }
.dept-header.purple { background: #7C3AED; color: white; }
.dept-positions { padding: 12px; }
.position-item { display: flex; align-items: flex-start; gap: 8px; padding: 8px 0; border-bottom: 1px solid var(--border); }
.position-item:last-child { border-bottom: none; }
.pos-code { font-size: 0.7rem; font-weight: 700; background: var(--navy-light); color: var(--navy); padding: 2px 6px; border-radius: 4px; flex-shrink: 0; margin-top: 2px; }
.pos-info strong { display: block; font-size: 0.85rem; font-weight: 600; color: var(--text-dark); }
.pos-info span { font-size: 0.78rem; color: var(--text-muted); }

/* Personnel Cards */
.personnel-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.personnel-card {
  background: white;
  border-radius: var(--radius-md);
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
  border-top: 3px solid transparent;
}
.personnel-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.personnel-card.dept-tech { border-color: var(--navy); }
.personnel-card.dept-sales { border-color: var(--red); }
.personnel-card.dept-cs { border-color: var(--blue); }
.personnel-card.dept-mkt { border-color: #D97706; }
.personnel-card.dept-admin { border-color: var(--green); }
.personnel-card.dept-dev { border-color: #7C3AED; }
.p-role-badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.72rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.05em; padding: 4px 10px; border-radius: 12px;
  margin-bottom: 14px;
}
.p-role-badge.tech { background: #dbeafe; color: #1e40af; }
.p-role-badge.sales { background: #fee2e2; color: #991b1b; }
.p-role-badge.cs { background: #dbeafe; color: #1e40af; }
.p-role-badge.mkt { background: #fef3c7; color: #92400e; }
.p-role-badge.admin { background: #dcfce7; color: #166534; }
.p-role-badge.dev { background: #f3e8ff; color: #6b21a8; }
.personnel-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--navy); margin-bottom: 6px; }
.personnel-card .p-code { font-size: 0.8rem; color: var(--text-muted); font-family: monospace; margin-bottom: 10px; }
.personnel-card .p-desc { font-size: 0.88rem; color: var(--text-muted); line-height: 1.6; margin-bottom: 14px; }
.p-salary { font-size: 0.88rem; font-weight: 600; color: var(--navy); margin-bottom: 8px; }
.p-path { font-size: 0.8rem; color: var(--text-muted); display: flex; align-items: center; gap: 6px; }
.p-path span { color: var(--blue); }

/* Partners */
.partners-grid { display: flex; flex-wrap: wrap; gap: 20px; justify-content: center; }
.partner-item {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  min-width: 140px;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.partner-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.partner-item .partner-logo-placeholder {
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.partner-item .partner-logo-placeholder img {
  max-height: 40px;
  max-width: 110px;
  width: auto;
  object-fit: contain;
  filter: grayscale(100%) opacity(0.7);
  transition: filter 0.3s ease;
}
.partner-item:hover .partner-logo-placeholder img {
  filter: grayscale(0%) opacity(1);
}
.partner-item .partner-name {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.partner-item .partner-cat {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 400;
}

/* Careers */
.careers-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.career-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.career-card:hover { border-color: var(--navy); box-shadow: var(--shadow-sm); }
.career-icon { font-size: 2rem; flex-shrink: 0; }
.career-info h4 { font-size: 1rem; font-weight: 700; color: var(--navy); margin-bottom: 4px; }
.career-info p { font-size: 0.87rem; color: var(--text-muted); margin-bottom: 10px; }
.career-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.career-tag { font-size: 0.75rem; padding: 2px 8px; border-radius: 6px; background: var(--bg-light); color: var(--text-muted); }
.career-status-badge {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 0.73rem; font-weight: 600; padding: 2px 8px;
  border-radius: 8px; margin-bottom: 8px;
}
.career-status-badge.open { background: #dcfce7; color: #166534; }
.career-status-badge.planned { background: #fef3c7; color: #92400e; }
.career-status-badge.closed { background: #f1f5f9; color: #64748b; }

/* Contact About */
.contact-grid-about { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.contact-item-about {
  display: flex; align-items: flex-start; gap: 14px;
  padding: 20px;
  background: rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,0.12);
}
.contact-item-about .ci-icon { font-size: 1.6rem; flex-shrink: 0; }
.contact-item-about h4 { font-size: 0.85rem; opacity: 0.7; margin-bottom: 4px; }
.contact-item-about p { font-size: 0.95rem; font-weight: 600; }
.contact-item-about a { color: white; }

/* About Page Responsive */
@media (max-width: 1024px) {
  .org-departments { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .about-hero h1 { font-size: 1.9rem; }
  .overview-grid { grid-template-columns: 1fr; }
  .vm-grid { grid-template-columns: 1fr; }
  .eco-grid { grid-template-columns: repeat(2, 1fr); }
  .personnel-grid { grid-template-columns: 1fr; }
  .org-departments { grid-template-columns: 1fr; }
  .careers-grid { grid-template-columns: 1fr; }
  .contact-grid-about { grid-template-columns: 1fr; }
  .org-chart { padding: 24px 16px; }
}
@media (max-width: 480px) {
  .eco-grid { grid-template-columns: 1fr; }
}

/* ── 33. SVG ICONS ────────────────────────────────── */
.svc-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--navy-light);
  border-radius: 14px;
  margin-bottom: 16px;
  flex-shrink: 0;
}
.svc-icon svg {
  width: 28px;
  height: 28px;
  color: var(--navy);
  stroke: currentColor;
  fill: none;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}
/* Icon accent — dùng cho card có background navy */
.svc-icon--light {
  background: rgba(255,255,255,0.15);
}
.svc-icon--light svg { color: #fff; }

/* Inline icon nhỏ trong text/badge */
.icon-sm {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  vertical-align: middle;
}
.icon-sm svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

/* Why-HTS benefit icon */
.benefit-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--navy-light);
  border-radius: 12px;
  margin: 0 auto 12px;
}
.benefit-icon svg {
  width: 26px;
  height: 26px;
  color: var(--navy);
  stroke: currentColor;
  fill: none;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ── 34. PARTNER LOGOS ────────────────────────────── */
.partners-logo-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  align-items: center;
  justify-content: center;
  margin-top: 20px;
}
.partner-logo-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.partner-logo-item img {
  height: 44px;
  width: auto;
  max-width: 120px;
  object-fit: contain;
  filter: grayscale(100%) opacity(0.7);
  transition: filter 0.3s ease;
}
.partner-logo-item img:hover {
  filter: grayscale(0%) opacity(1);
}
.partner-logo-item span {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ── 36. HERO SPLIT (trang chủ) ──────────────────── */
.hero-split .container {
  display: grid;
  grid-template-columns: 1fr 440px;
  gap: 56px;
  align-items: center;
}
.hero-split .hero-content { max-width: none; }
.hero-split h1 { max-width: none; }
.hero-image {
  position: relative;
  flex-shrink: 0;
}
.hero-image img {
  width: 100%;
  height: 500px;
  object-fit: cover;
  object-position: top center;
  border-radius: 20px;
  box-shadow: 0 32px 80px rgba(0,0,0,0.35);
  display: block;
}
.hero-image::before {
  content: '';
  position: absolute;
  inset: -8px;
  border: 2px solid rgba(255,255,255,0.12);
  border-radius: 24px;
  pointer-events: none;
}

@media (max-width: 1024px) {
  .hero-split .container {
    grid-template-columns: 1fr 360px;
    gap: 36px;
  }
  .hero-image img { height: 420px; }
}
@media (max-width: 768px) {
  .hero-split .container { 
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }
  .hero-image { 
    display: block; 
    max-width: 500px;
    margin: 0 auto;
  }
  .hero-image img {
    height: 300px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
  }
  .hero-cta {
    justify-content: center;
  }
}

/* ── 35. HERO BACKGROUND PATTERN ─────────────────── */
.hero--pattern {
  position: relative;
  overflow: hidden;
}
.hero--pattern::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3Ccircle cx='0' cy='0' r='2'/%3E%3Ccircle cx='60' cy='0' r='2'/%3E%3Ccircle cx='0' cy='60' r='2'/%3E%3Ccircle cx='60' cy='60' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}
.hero--pattern > * { position: relative; z-index: 1; }