:root {
  --bg: #0b0a09;
  --panel: #161310;
  --gold: #c9a36a;
  --gold-soft: rgba(201, 163, 106, 0.16);
  --orange: #e86b2a;
  --text: #f4efe6;
  --muted: #b8aa96;
  --line: rgba(201, 163, 106, 0.28);
  --danger: #f3b4b4;
  --ok: #b7e4c7;
}

* { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  color-scheme: dark;
  scroll-behavior: smooth;
}
html, body { margin: 0; padding: 0; }
body {
  font-family: "Source Serif 4", "Times New Roman", serif;
  background:
    radial-gradient(900px 480px at 12% -8%, rgba(201, 163, 106, 0.16), transparent 55%),
    radial-gradient(1200px 600px at 80% -10%, rgba(232, 107, 42, 0.22), transparent 50%),
    linear-gradient(180deg, #120f0c 0%, var(--bg) 40%, #0e0c0a 100%);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

.wrap { width: min(1120px, calc(100% - 32px)); margin: 0 auto; }
.preview-banner {
  background: #3b2a12;
  color: #f8e5c0;
  text-align: center;
  padding: 10px 16px;
  font-family: "Be Vietnam Pro", sans-serif;
  font-size: 0.9rem;
}
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px 0 8px;
  font-family: "Be Vietnam Pro", sans-serif;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
}
.brand { font-weight: 800; letter-spacing: 0.18em; }
.nav { display: flex; gap: 16px; flex: 1; justify-content: center; }
.nav a {
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.1em;
}
.nav a:hover { color: var(--gold); }
.badge { border: 1px solid var(--line); padding: 6px 10px; border-radius: 999px; white-space: nowrap; }

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
  align-items: center;
  padding: 28px 0 56px;
}
.kicker {
  font-family: "Be Vietnam Pro", sans-serif;
  color: var(--gold);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-size: 0.78rem;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.pulse-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 0 rgba(232, 107, 42, 0.7);
  animation: pulse 1.8s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(232, 107, 42, 0.55); }
  70% { box-shadow: 0 0 0 10px rgba(232, 107, 42, 0); }
  100% { box-shadow: 0 0 0 0 rgba(232, 107, 42, 0); }
}
h1 { font-size: clamp(2.2rem, 5vw, 4.1rem); line-height: 1.05; margin: 0 0 16px; }
h1 em {
  font-style: normal;
  color: var(--gold);
  background: linear-gradient(180deg, transparent 62%, rgba(201, 163, 106, 0.28) 62%);
}
.lede { font-size: 1.15rem; color: var(--muted); max-width: 36rem; }
.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 22px 0 6px;
  font-family: "Be Vietnam Pro", sans-serif;
}
.stats div {
  background: var(--gold-soft);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 10px;
  text-align: center;
}
.stats strong { display: block; font-size: 1.35rem; color: var(--gold); }
.stats span { display: block; font-size: 0.72rem; letter-spacing: 0.04em; color: var(--muted); }
.hero-card {
  position: relative;
  background: linear-gradient(180deg, #1c1712, #12100e);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 22px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.35), 0 0 60px rgba(232, 107, 42, 0.12);
  animation: floaty 6s ease-in-out infinite;
}
@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
.hero-card img { width: 100%; height: auto; border-radius: 16px; display: block; }
.float-pill {
  position: absolute;
  left: 18px;
  top: 18px;
  z-index: 1;
  font-family: "Be Vietnam Pro", sans-serif;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  background: rgba(11, 10, 9, 0.82);
  border: 1px solid var(--line);
  color: var(--gold);
  padding: 6px 10px;
  border-radius: 999px;
}

.cta-row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.btn {
  font-family: "Be Vietnam Pro", sans-serif;
  border: 0;
  border-radius: 999px;
  padding: 13px 22px;
  min-height: 44px;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn-primary {
  background: linear-gradient(180deg, #f07a38, var(--orange));
  color: #fff;
  box-shadow: 0 10px 24px rgba(232, 107, 42, 0.28);
}
.btn-primary:hover { transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--gold); border: 1px solid var(--line); }

.band {
  border-block: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(201, 163, 106, 0.08), transparent);
  padding: 22px 0;
}
.band-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.band-label {
  font-family: "Be Vietnam Pro", sans-serif;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 4px;
}
.band-grid strong {
  display: block;
  font-size: 1.25rem;
  line-height: 1.2;
  margin-bottom: 4px;
}
.band-grid span { color: var(--muted); font-size: 0.92rem; }

.section { padding: 36px 0 12px; }
.section-lede {
  color: var(--muted);
  max-width: 42rem;
  margin: -4px 0 20px;
  font-size: 1.05rem;
}
.eyebrow {
  font-family: "Be Vietnam Pro", sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 8px;
}
h2 { font-size: 2rem; margin: 0 0 16px; }
.grid-3, .grid-2 { display: grid; gap: 16px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: 1fr 1fr; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 20px;
}
.card.lift { transition: transform 0.2s ease, border-color 0.2s ease; }
.card.lift:hover { transform: translateY(-4px); border-color: rgba(201, 163, 106, 0.5); }
.card.yes { border-color: rgba(183, 228, 199, 0.28); }
.card.no { border-color: rgba(243, 180, 180, 0.28); }
.card h3 { margin: 0 0 8px; font-size: 1.2rem; }
.num {
  font-family: "Be Vietnam Pro", sans-serif;
  display: inline-block;
  color: var(--gold);
  font-weight: 800;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  margin-bottom: 8px;
}
.muted { color: var(--muted); }
.grid-3.tight { margin-top: 16px; }
.card.mini { padding: 16px; }
.card.mini h3 { font-size: 1.05rem; }

.story {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  align-items: stretch;
}
blockquote {
  margin: 0;
  padding: 28px 24px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(201, 163, 106, 0.12), var(--panel));
}
blockquote p {
  font-size: 1.55rem;
  line-height: 1.25;
  margin: 0 0 16px;
}
blockquote cite {
  font-family: "Be Vietnam Pro", sans-serif;
  font-style: normal;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
}
.check {
  margin: 0;
  padding: 0;
  list-style: none;
}
.check li {
  position: relative;
  padding: 8px 0 8px 22px;
  color: var(--muted);
}
.check li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.85em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--gold);
}
.check.warn li::before { background: #e08a8a; }
.check.light { margin-top: 16px; }

.timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.timeline article {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 20px;
}

.faq details {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: 14px;
  padding: 4px 16px;
  margin-bottom: 10px;
}
.faq summary {
  font-family: "Be Vietnam Pro", sans-serif;
  font-weight: 700;
  cursor: pointer;
  padding: 12px 0;
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq details p { margin: 0 0 14px; color: var(--muted); }

.consult {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 24px;
  padding: 48px 0 88px;
}
.form-card { box-shadow: 0 20px 50px rgba(0,0,0,0.28); }
.form-kicker {
  font-family: "Be Vietnam Pro", sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 6px;
}
.form-title { font-family: "Be Vietnam Pro", sans-serif; margin: 0 0 8px; }
label { display: block; font-family: "Be Vietnam Pro", sans-serif; font-size: 0.82rem; margin: 12px 0 6px; }
input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #0f0d0b;
  color: var(--text);
  font-size: 16px;
}
input:focus { outline: 2px solid rgba(232, 107, 42, 0.45); border-color: var(--orange); }
input:-webkit-autofill {
  -webkit-text-fill-color: var(--text);
  box-shadow: 0 0 0 1000px #0f0d0b inset;
}
.consent { display: flex; gap: 10px; align-items: flex-start; margin: 14px 0; font-size: 0.92rem; color: var(--muted); }
.consent input { width: 20px; height: 20px; flex-shrink: 0; margin-top: 2px; }
#tu-van, #dau-hieu, #co-che, #lieu-trinh { scroll-margin-top: 16px; }
.form-status { margin-top: 12px; font-family: "Be Vietnam Pro", sans-serif; }
.form-status.error { color: var(--danger); }
.form-status.ok { color: var(--ok); font-size: 1.05rem; }
.fine { font-size: 0.82rem; color: var(--muted); }
footer { border-top: 1px solid var(--line); padding: 24px 0 40px; color: var(--muted); font-size: 0.88rem; }

.sticky-cta { display: none; }

@media (max-width: 860px) {
  .wrap { width: min(1120px, calc(100% - 24px)); }
  .hero, .consult, .grid-3, .grid-2, .story, .timeline, .band-grid { grid-template-columns: 1fr; }
  .nav { display: none; }
  .topbar {
    flex-wrap: wrap;
    gap: 8px;
    letter-spacing: 0.08em;
    font-size: 0.7rem;
  }
  .stats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  h1 { font-size: clamp(1.65rem, 8vw, 2.4rem); }
  h2 { font-size: clamp(1.35rem, 6vw, 1.75rem); }
  .lede { font-size: 1rem; }
  .hero, .consult { gap: 20px; padding-bottom: 36px; }
  .consult { padding-bottom: 96px; }
  .hero-card { padding: 12px; animation: none; }
  .cta-row { flex-direction: column; }
  .cta-row .btn,
  .consult .btn-primary { width: 100%; }
  .sticky-cta {
    display: flex;
    position: fixed;
    left: 12px;
    right: 12px;
    bottom: calc(12px + env(safe-area-inset-bottom, 0px));
    z-index: 20;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    border-radius: 999px;
    background: linear-gradient(180deg, #f07a38, var(--orange));
    color: #fff;
    font-family: "Be Vietnam Pro", sans-serif;
    font-weight: 800;
    text-decoration: none;
    box-shadow: 0 12px 28px rgba(0,0,0,0.35);
  }
  body.lead-sent .sticky-cta { display: none; }
}