:root {
  --bg: #050816;
  --bg-alt: #0b1020;
  --surface: #111827;
  --surface-soft: #1f2937;
  --primary: #facc15;
  --primary-soft: rgba(250, 204, 21, 0.12);
  --primary-strong: #eab308;
  --text-main: #f9fafb;
  --text-muted: #9ca3af;
  --border-subtle: rgba(148, 163, 184, 0.3);
  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.85);
  --radius-lg: 18px;
  --radius-pill: 999px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: radial-gradient(circle at top, #1f2937 0, #020617 42%);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 16px;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: linear-gradient(
    to bottom,
    rgba(15, 23, 42, 0.9),
    rgba(15, 23, 42, 0.65),
    transparent
  );
  border-bottom: 1px solid rgba(148, 163, 184, 0.25);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px 12px;
  gap: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-circle {
  width: 32px;
  height: 32px;
  border-radius: 0;
  background: transparent;
  color: #facc15;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 20px;
  box-shadow: none;
}

.brand-name {
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-size: 14px;
}

.brand-tagline {
  font-size: 11px;
  color: var(--text-muted);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-icon {
  min-width: 38px;
  height: 32px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(148, 163, 184, 0.5);
  background: radial-gradient(circle at top, rgba(15, 23, 42, 0.95), #020617);
  color: var(--text-main);
  cursor: pointer;
  transition: transform 0.16s ease, box-shadow 0.16s ease, border-color 0.16s ease,
    background 0.16s ease;
}

.header-icon:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.9);
  border-color: rgba(250, 204, 21, 0.8);
  background: radial-gradient(circle at top, rgba(55, 65, 81, 0.98), #020617);
}

.header-icon-zalo {
  color: #e5f2ff;
  border-color: rgba(59, 130, 246, 0.7);
}

.header-icon-fb {
  color: #dbeafe;
  border-color: rgba(37, 99, 235, 0.7);
}

.header-icon-call {
  color: #fefce8;
  border-color: rgba(234, 179, 8, 0.8);
}

.hotline-pill {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: center;
  padding: 6px 16px 7px;
  border-radius: var(--radius-pill);
  background: radial-gradient(circle at 10% 0, #fefce8, #facc15);
  color: #111827;
  border: 1px solid rgba(15, 23, 42, 0.15);
  box-shadow: 0 12px 30px rgba(250, 204, 21, 0.6);
  transition: transform 0.16s ease, box-shadow 0.16s ease;
}

.hotline-pill:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 36px rgba(250, 204, 21, 0.8);
}

.hotline-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.9;
}

.hotline-number {
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

/* Hero */
.hero {
  padding: 32px 0 20px;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2.4fr);
  gap: 24px;
}

.hero-text h1 {
  font-size: clamp(26px, 4vw, 32px);
  line-height: 1.15;
  margin: 0 0 10px;
}

.hero-subtitle {
  margin: 0 0 18px;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: var(--radius-pill);
  background: linear-gradient(135deg, #facc15, #f97316);
  color: #111827;
  font-weight: 700;
  font-size: 14px;
  border: none;
  box-shadow: 0 16px 40px rgba(249, 115, 22, 0.55);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
}

.btn-primary:hover {
  transform: translateY(-1px);
  filter: brightness(1.03);
  box-shadow: 0 20px 50px rgba(249, 115, 22, 0.7);
}

.hero-note {
  font-size: 12px;
  color: var(--text-muted);
}

.hero-card {
  background: radial-gradient(circle at top, #1f2937, #020617);
  border-radius: 24px;
  border: 1px solid var(--border-subtle);
  padding: 16px 16px 18px;
  box-shadow: var(--shadow-soft);
}

.hero-card-title {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 8px;
}

.hero-list {
  list-style: none;
  padding: 0;
  margin: 0 0 14px;
  font-size: 13px;
  color: var(--text-muted);
}

.hero-list li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 6px;
}

.hero-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--primary);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 18px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(148, 163, 184, 0.6);
  font-size: 13px;
  color: var(--text-main);
  background: linear-gradient(
    to right,
    rgba(15, 23, 42, 0.9),
    rgba(15, 23, 42, 0.7)
  );
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, transform 0.15s ease;
}

.btn-ghost:hover {
  border-color: rgba(250, 204, 21, 0.8);
  background: radial-gradient(circle at top, rgba(55, 65, 81, 0.95), #020617);
  transform: translateY(-1px);
}

/* Sections */
.section {
  padding: 12px 0 20px;
}

.section-alt {
  background: radial-gradient(circle at top left, #020617, #020617 40%, #0b1120);
  border-top: 1px solid rgba(148, 163, 184, 0.3);
  border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}

.section-title {
  font-size: 20px;
  margin: 0 0 10px;
}

.section-intro {
  margin: 0 0 16px;
  font-size: 13px;
  color: var(--text-muted);
  max-width: 640px;
}

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.service-card {
  background: linear-gradient(145deg, rgba(15, 23, 42, 0.96), rgba(15, 23, 42, 0.86));
  border-radius: 18px;
  padding: 12px 13px 13px;
  border: 1px solid rgba(148, 163, 184, 0.4);
  box-shadow: 0 14px 35px rgba(15, 23, 42, 0.7);
}

.service-card h3 {
  font-size: 14px;
  margin: 0 0 6px;
}

.service-card p {
  margin: 0;
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.55;
}

/* Pricing */
.price-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}

.price-grid-single {
  grid-template-columns: minmax(0, 1.1fr);
  max-width: 520px;
}

.price-card {
  background: linear-gradient(150deg, rgba(15, 23, 42, 0.98), rgba(15, 23, 42, 0.88));
  border-radius: 18px;
  padding: 11px 12px 12px;
  border: 1px solid rgba(148, 163, 184, 0.5);
  box-shadow: 0 14px 35px rgba(15, 23, 42, 0.8);
}

.price-card h3 {
  font-size: 14px;
  margin: 0 0 8px;
}

.price-card table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.price-card td {
  padding: 4px 0;
}

.price-card tr + tr td {
  border-top: 1px dashed rgba(148, 163, 184, 0.4);
}

.price {
  text-align: right;
  font-weight: 600;
  color: var(--primary);
}

.subsection-title {
  font-size: 15px;
  margin: 2px 0 8px;
}

.note {
  margin: 4px 0 0;
  font-size: 12px;
  color: var(--text-muted);
}

/* Contact */
.contact-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.contact-btn {
  margin: 4px 0 6px;
}

.contact-text {
  font-size: 13px;
  color: var(--text-muted);
}

/* Footer */
.footer {
  border-top: 1px solid rgba(148, 163, 184, 0.25);
  padding: 12px 0 16px;
  background: radial-gradient(circle at top, #020617, #020617 50%, #020617);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 12px;
  color: var(--text-muted);
}

.footer-brand {
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 2px;
}

.footer-contact a {
  color: var(--primary);
  font-weight: 600;
}

/* Floating contact buttons */
.floating-contact {
  position: fixed;
  right: 16px;
  bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 30;
}

.floating-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px 9px;
  border-radius: 999px;
  background: radial-gradient(circle at top left, #facc15, #f97316);
  color: #111827;
  font-size: 12px;
  font-weight: 600;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(15, 23, 42, 0.18);
  cursor: pointer;
  transition: transform 0.16s ease, box-shadow 0.16s ease, filter 0.16s ease;
}

.floating-item:hover {
  transform: translateY(-1px);
  filter: brightness(1.03);
  box-shadow: 0 20px 52px rgba(15, 23, 42, 0.95);
}

.floating-zalo {
  background: radial-gradient(circle at top left, #38bdf8, #1d4ed8);
  color: #e5f2ff;
}

.floating-call {
  background: radial-gradient(circle at top left, #facc15, #f97316);
  color: #111827;
}

.floating-icon {
  min-width: 30px;
  height: 30px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  background: rgba(15, 23, 42, 0.12);
}

.floating-label {
  display: inline-block;
  line-height: 1.35;
}

/* Responsive */
@media (max-width: 768px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-card {
    order: -1;
  }

  .services-grid,
  .price-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .header-inner {
    gap: 8px;
  }

  .header-actions {
    gap: 6px;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .header-inner {
    padding-inline: 14px;
  }

  .hero {
    padding-top: 22px;
  }

  .hero-card {
    padding-inline: 14px;
  }

  .service-card,
  .price-card {
    padding-inline: 12px;
  }

  .floating-contact {
    right: 10px;
    bottom: 10px;
  }
}