/* ============================================================
   VÂNNO – Sinh Trắc Vân Tay Landing Page
   ============================================================ */

/* ── CSS RESET & BASE ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --navy: #0A1628; --navy-mid: #112240; --navy-light: #1A3560;
  --gold: #F59E0B; --gold-light: #FCD34D; --gold-dark: #D97706;
  --cream: #FAF7F0; --cream-dark: #EDE8DC; --warm-gray: #9CA3AF;
  --white: #FFFFFF; --red-warn: #EF4444;
  --ff-display: 'Playfair Display', Georgia, serif;
  --ff-body: 'Inter', system-ui, sans-serif;
  --fs-xs: 0.75rem; --fs-sm: 0.875rem; --fs-md: 1rem; --fs-lg: 1.125rem;
  --fs-xl: 1.25rem; --fs-2xl: 1.5rem; --fs-3xl: 1.875rem; --fs-4xl: 2.25rem;
  --fs-5xl: 3rem; --fs-6xl: 3.75rem; --fs-7xl: 4.5rem;
  --radius-sm: 4px; --radius-md: 8px; --radius-lg: 16px; --radius-xl: 24px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05); --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.20); --shadow-gold: 0 4px 24px rgba(245,158,11,0.25);
  --transition-fast: 150ms ease; --transition-base: 300ms ease;
  --transition-slow: 500ms ease; --transition-spring: 400ms cubic-bezier(0.34,1.56,0.64,1);
  --max-w: 1200px; --section-py: 6rem;
}
html { font-size: 16px; scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--ff-body); background-color: var(--cream); color: var(--navy); line-height: 1.6; overflow-x: hidden; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}
.container { width: 100%; max-width: var(--max-w); margin-inline: auto; padding-inline: 1.5rem; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; }

/* ── REVEAL ANIMATIONS ── */
.reveal-up, .reveal-left, .reveal-right { opacity: 0; transform: translateY(32px); transition: opacity 0.7s ease, transform 0.7s ease; transition-delay: var(--delay, 0s); }
.reveal-left { transform: translateX(-32px); }
.reveal-right { transform: translateX(32px); }
.reveal-up.visible, .reveal-left.visible, .reveal-right.visible { opacity: 1; transform: translate(0,0); }

/* ── BUTTONS ── */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.875rem 2rem; border-radius: var(--radius-sm); font-family: var(--ff-body); font-weight: 600; font-size: var(--fs-md); line-height: 1; border: 2px solid transparent; transition: all var(--transition-spring); white-space: nowrap; cursor: pointer; text-decoration: none; }
.btn--primary { background: var(--gold); color: var(--navy); border-color: var(--gold); box-shadow: var(--shadow-gold); }
.btn--primary:hover, .btn--primary:focus-visible { background: var(--gold-light); border-color: var(--gold-light); transform: translateY(-2px) scale(1.02); box-shadow: 0 8px 32px rgba(245,158,11,0.40); }
.btn--ghost { background: transparent; color: var(--cream); border-color: rgba(250,247,240,0.4); }
.btn--ghost:hover, .btn--ghost:focus-visible { background: rgba(250,247,240,0.1); border-color: var(--cream); transform: translateY(-2px); }
.btn--full { width: 100%; }
.btn:active { transform: scale(0.98); }
.btn:focus-visible { outline: 3px solid var(--gold); outline-offset: 3px; }
.btn--outline { background: transparent; color: var(--navy); border-color: rgba(10,22,40,0.25); width: 100%; justify-content: center; }
.btn--outline:hover, .btn--outline:focus-visible { background: var(--navy); color: var(--cream); border-color: var(--navy); transform: translateY(-2px); }

/* ── SECTION LABELS ── */
.section-label { display: inline-flex; align-items: center; gap: 0.5rem; font-size: var(--fs-sm); font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gold); margin-bottom: 1rem; }
.section-label--light { color: var(--gold-light); }
.section-label__dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--gold); animation: pulse-dot 2s infinite; }
@keyframes pulse-dot { 0%, 100% { transform: scale(1); opacity: 1; } 50% { transform: scale(1.4); opacity: 0.7; } }
.section-headline { font-family: var(--ff-display); font-size: clamp(var(--fs-3xl), 4vw, var(--fs-5xl)); font-weight: 900; line-height: 1.15; color: var(--navy); margin-bottom: 1.5rem; }
.section-headline--light { color: var(--cream); }
.section-headline em { font-style: italic; color: var(--gold); }

/* ── NAVIGATION ── */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; transition: background var(--transition-base), box-shadow var(--transition-base); }
.nav.scrolled { background: rgba(10,22,40,0.97); backdrop-filter: blur(8px); box-shadow: 0 1px 0 rgba(245,158,11,0.15); }
.nav__inner { display: flex; align-items: center; justify-content: space-between; max-width: var(--max-w); margin-inline: auto; padding: 1.25rem 1.5rem; }
.nav__logo { display: flex; align-items: center; gap: 0.5rem; text-decoration: none; }
.nav__logo-icon { font-size: 1.5rem; color: var(--gold); line-height: 1; }
.nav__logo-text { font-family: var(--ff-display); font-size: var(--fs-xl); font-weight: 900; color: var(--white); letter-spacing: 0.05em; }
.nav__logo-sub { font-size: var(--fs-xs); font-weight: 500; color: var(--warm-gray); letter-spacing: 0.05em; text-transform: uppercase; display: none; }
@media (min-width: 768px) { .nav__logo-sub { display: block; } }
.nav__links { display: none; align-items: center; gap: 2rem; }
@media (min-width: 768px) { .nav__links { display: flex; } }
.nav__link { font-size: var(--fs-sm); font-weight: 500; color: rgba(250,247,240,0.8); transition: color var(--transition-fast); position: relative; padding-bottom: 2px; }
.nav__link::after { content: ''; position: absolute; bottom: -2px; left: 0; width: 0; height: 1px; background: var(--gold); transition: width var(--transition-base); }
.nav__link:hover { color: var(--gold); }
.nav__link:hover::after { width: 100%; }
.nav__cta-btn { background: var(--gold); color: var(--navy); font-weight: 700; font-size: var(--fs-sm); padding: 0.6rem 1.25rem; border-radius: var(--radius-sm); transition: all var(--transition-spring); }
.nav__cta-btn:hover { background: var(--gold-light); transform: translateY(-1px); box-shadow: var(--shadow-gold); }
.nav__hamburger { display: flex; flex-direction: column; gap: 5px; background: none; border: none; padding: 0.25rem; }
@media (min-width: 768px) { .nav__hamburger { display: none; } }
.nav__hamburger span { display: block; width: 24px; height: 2px; background: var(--white); border-radius: 2px; transition: all var(--transition-base); }
.nav__hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav__hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nav__mobile { display: none; flex-direction: column; background: rgba(10,22,40,0.98); padding: 1.5rem; gap: 1rem; border-top: 1px solid rgba(245,158,11,0.2); }
.nav__mobile.open { display: flex; }
.nav__mobile-link { color: var(--cream); font-size: var(--fs-lg); font-weight: 500; padding: 0.5rem 0; border-bottom: 1px solid rgba(255,255,255,0.06); }
.nav__mobile-cta { background: var(--gold); color: var(--navy); font-weight: 700; padding: 0.875rem 1.5rem; border-radius: var(--radius-sm); text-align: center; margin-top: 0.5rem; }

/* ── HERO ── */
.hero { position: relative; min-height: 100svh; display: flex; align-items: center; background: var(--navy); overflow: hidden; padding-top: 5rem; }
.hero__bg-pattern { position: absolute; inset: 0; opacity: 0.07; }
#fingerprint-canvas { width: 100%; height: 100%; }
.hero__overlay { position: absolute; inset: 0; background: radial-gradient(ellipse 70% 80% at 30% 50%, rgba(10,22,40,0.4) 0%, rgba(10,22,40,0.85) 70%); pointer-events: none; }
.hero__content { position: relative; z-index: 2; max-width: var(--max-w); margin-inline: auto; padding: 2rem 1.5rem; display: flex; flex-direction: column; gap: 2rem; flex: 1; }
@media (min-width: 1024px) { .hero__content { max-width: 55%; padding-left: max(1.5rem, calc((100vw - var(--max-w)) / 2 + 1.5rem)); } }
.hero__badge { display: inline-flex; align-items: center; gap: 0.5rem; background: rgba(245,158,11,0.12); border: 1px solid rgba(245,158,11,0.3); color: var(--gold-light); font-size: var(--fs-sm); font-weight: 500; padding: 0.4rem 1rem; border-radius: 100px; letter-spacing: 0.03em; width: fit-content; }
.hero__badge-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--gold); animation: pulse-dot 2s infinite; }
.hero__headline { font-family: var(--ff-display); font-size: clamp(2.5rem, 6vw, var(--fs-7xl)); font-weight: 900; line-height: 1.1; color: var(--white); letter-spacing: -0.02em; }
.hero__headline-em { font-style: italic; color: var(--gold); position: relative; display: inline-block; }
.hero__subheadline { font-size: clamp(var(--fs-md), 1.5vw, var(--fs-xl)); color: rgba(250,247,240,0.82); line-height: 1.7; max-width: 52ch; }
.hero__subheadline strong { color: var(--gold-light); font-weight: 600; }
.hero__cta-group { display: flex; flex-direction: column; gap: 1rem; }
@media (min-width: 480px) { .hero__cta-group { flex-direction: row; flex-wrap: wrap; } }
.hero__stats { display: flex; gap: 2rem; flex-wrap: wrap; padding-top: 1rem; border-top: 1px solid rgba(250,247,240,0.1); }
.hero__stat { display: flex; flex-direction: column; gap: 0.25rem; }
.hero__stat-num { font-family: var(--ff-display); font-size: var(--fs-3xl); font-weight: 900; color: var(--gold); line-height: 1; }
.hero__stat-label { font-size: var(--fs-xs); color: var(--warm-gray); letter-spacing: 0.05em; text-transform: uppercase; }
.hero__stat-divider { width: 1px; background: rgba(250,247,240,0.1); align-self: stretch; }
.hero__visual { position: absolute; right: 0; top: 50%; transform: translateY(-50%); width: min(45vw, 600px); aspect-ratio: 1; display: none; }
@media (min-width: 1024px) { .hero__visual { display: block; } }
.hero__visual-ring { position: absolute; border-radius: 50%; border: 1px solid rgba(245,158,11,0.15); }
.hero__visual-ring--1 { inset: 0; animation: spin-slow 40s linear infinite; }
.hero__visual-ring--2 { inset: 15%; border-style: dashed; animation: spin-slow 30s linear infinite reverse; }
.hero__visual-ring--3 { inset: 30%; animation: spin-slow 20s linear infinite; }
@keyframes spin-slow { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.hero__visual-fp { position: absolute; inset: 8%; border-radius: 50%; overflow: hidden; animation: float 6s ease-in-out infinite; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-16px); } }
.hero__visual-img { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; }
.hero__scroll-hint { position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 0.5rem; color: var(--warm-gray); font-size: var(--fs-xs); letter-spacing: 0.1em; text-transform: uppercase; animation: scroll-hint 2s ease-in-out infinite; }
.hero__scroll-line { width: 1px; height: 40px; background: linear-gradient(to bottom, var(--gold), transparent); }
@keyframes scroll-hint { 0%, 100% { opacity: 0.5; transform: translateX(-50%) translateY(0); } 50% { opacity: 1; transform: translateX(-50%) translateY(4px); } }

/* ── AGITATION ── */
.agitation { padding-block: var(--section-py); background: var(--cream); position: relative; }
.agitation::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, transparent, var(--gold), transparent); }
.agitation .container { display: flex; flex-direction: column; align-items: center; text-align: center; }
.agitation .section-headline { margin-bottom: 1rem; }
.agitation__grid { display: grid; grid-template-columns: 1fr; gap: 1.5rem; width: 100%; margin-bottom: 4rem; }
@media (min-width: 768px) { .agitation__grid { grid-template-columns: repeat(3, 1fr); } }
.agitation__card { background: var(--white); border: 1px solid var(--cream-dark); padding: 2rem; border-radius: var(--radius-md); text-align: left; display: flex; flex-direction: column; gap: 0.875rem; transition: all var(--transition-base); position: relative; overflow: hidden; }
.agitation__card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--gold); transform: scaleX(0); transform-origin: left; transition: transform var(--transition-spring); }
.agitation__card:hover { border-color: rgba(245,158,11,0.3); box-shadow: var(--shadow-md); transform: translateY(-4px); }
.agitation__card:hover::before { transform: scaleX(1); }
.agitation__card-icon { font-size: 2.5rem; line-height: 1; }
.agitation__card-tag { font-size: var(--fs-xs); font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gold-dark); background: rgba(245,158,11,0.08); padding: 0.25rem 0.75rem; border-radius: 100px; width: fit-content; }
.agitation__card-title { font-family: var(--ff-display); font-size: var(--fs-xl); font-weight: 700; color: var(--navy); line-height: 1.3; }
.agitation__card-text { font-size: var(--fs-md); color: #4B5563; line-height: 1.7; }
.agitation__card-text strong { color: var(--navy); }
.agitation__card-pain { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.5rem; }
.agitation__card-pain span { font-size: var(--fs-xs); color: #DC2626; background: rgba(220,38,38,0.06); border: 1px solid rgba(220,38,38,0.15); padding: 0.2rem 0.6rem; border-radius: 4px; font-weight: 500; }
.agitation__pivot { display: flex; flex-direction: column; align-items: center; gap: 1.5rem; width: 100%; max-width: 720px; }
.agitation__pivot-line { width: 100%; height: 1px; background: linear-gradient(90deg, transparent, var(--navy-light), transparent); }
.agitation__quote { font-family: var(--ff-display); font-size: clamp(var(--fs-lg), 2vw, var(--fs-2xl)); font-weight: 700; color: var(--navy); line-height: 1.5; text-align: center; padding: 0.5rem 1rem; display: flex; flex-direction: column; gap: 0.75rem; }
.agitation__quote strong { color: var(--gold-dark); }

/* ── SOLUTION ── */
.solution { padding-block: var(--section-py); background: var(--navy); position: relative; overflow: hidden; }
.solution__bg { position: absolute; inset: 0; background: radial-gradient(ellipse 60% 80% at 80% 50%, rgba(245,158,11,0.05) 0%, transparent 70%), radial-gradient(ellipse 40% 40% at 20% 30%, rgba(26,53,96,0.8) 0%, transparent 60%); pointer-events: none; }
.solution__inner { display: grid; grid-template-columns: 1fr; gap: 4rem; align-items: center; position: relative; z-index: 1; }
@media (min-width: 1024px) { .solution__inner { grid-template-columns: 1fr 1fr; } }
.solution__intro { font-size: var(--fs-lg); color: rgba(250,247,240,0.8); line-height: 1.7; margin-bottom: 2rem; }
.solution__intro strong { color: var(--gold-light); }
.solution__deliverables { margin-bottom: 2.5rem; }
.solution__deliver-label { font-size: var(--fs-sm); font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--warm-gray); margin-bottom: 1.25rem; }
.solution__list { display: flex; flex-direction: column; gap: 1rem; }
.solution__list-item { display: flex; align-items: flex-start; gap: 1rem; padding: 1rem 1.25rem; background: rgba(250,247,240,0.04); border: 1px solid rgba(245,158,11,0.12); border-radius: var(--radius-sm); transition: all var(--transition-base); }
.solution__list-item:hover { background: rgba(245,158,11,0.07); border-color: rgba(245,158,11,0.25); transform: translateX(4px); }
.solution__list-icon { font-size: 1.5rem; flex-shrink: 0; margin-top: 0.1rem; }
.solution__list-item div { display: flex; flex-direction: column; gap: 0.25rem; }
.solution__list-item strong { font-size: var(--fs-md); color: var(--cream); font-weight: 600; }
.solution__list-item span { font-size: var(--fs-sm); color: var(--warm-gray); line-height: 1.5; }
.solution__trust { display: flex; flex-direction: column; gap: 0.5rem; margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1px solid rgba(245,158,11,0.15); }
.solution__trust span { font-size: var(--fs-sm); color: rgba(250,247,240,0.7); }
.solution__visual { position: relative; }
.solution__visual-card { position: relative; border-radius: var(--radius-md); overflow: hidden; border: 1px solid rgba(245,158,11,0.2); }
.solution__img { width: 100%; height: clamp(220px, 50vw, 420px); object-fit: cover; display: block; filter: brightness(0.9); transition: transform 0.6s ease, filter 0.4s ease; }
.solution__visual-card:hover .solution__img { transform: scale(1.03); filter: brightness(1); }
.solution__visual-badge { position: absolute; bottom: 0; left: 0; right: 0; background: linear-gradient(to top, rgba(10,22,40,0.95) 0%, transparent 100%); padding: 2rem 1.5rem 1.5rem; display: flex; align-items: center; gap: 0.75rem; color: var(--cream); font-size: var(--fs-sm); }
.solution__visual-badge span:first-child { font-size: 1.25rem; color: var(--gold); }
.solution__floating-card { position: absolute; background: var(--navy-mid); border: 1px solid rgba(245,158,11,0.25); border-radius: var(--radius-md); padding: 0.875rem 1.25rem; display: flex; align-items: center; gap: 0.75rem; font-size: var(--fs-sm); color: var(--cream); box-shadow: var(--shadow-md); animation: float 5s ease-in-out infinite; }
.solution__floating-card--1 { top: -1rem; right: -1rem; animation-delay: 0s; }
.solution__floating-card--2 { bottom: 4rem; left: -1.5rem; animation-delay: 1.5s; }
.solution__fc-icon { font-size: 1.5rem; }
.solution__floating-card strong { color: var(--gold-light); display: block; }

/* ── BENEFITS ── */
.benefits { padding-block: var(--section-py); background: var(--cream-dark); position: relative; }
.benefits .container { display: flex; flex-direction: column; align-items: center; text-align: center; }
.benefits__grid { display: grid; grid-template-columns: 1fr; gap: 1.5rem; width: 100%; text-align: left; }
@media (min-width: 640px) { .benefits__grid { grid-template-columns: repeat(2, 1fr); } }
.benefits__card { background: var(--white); border: 1px solid rgba(10,22,40,0.08); border-radius: var(--radius-md); padding: 2rem; display: flex; flex-direction: column; gap: 1rem; transition: all var(--transition-spring); position: relative; }
.benefits__card--featured { background: var(--navy); color: var(--cream); border-color: transparent; }
.benefits__card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.benefits__card-num { font-family: var(--ff-display); font-size: var(--fs-5xl); font-weight: 900; color: rgba(245,158,11,0.12); line-height: 1; position: absolute; top: 1rem; right: 1.5rem; user-select: none; }
.benefits__card--featured .benefits__card-num { color: rgba(245,158,11,0.18); }
.benefits__card-icon { font-size: 2rem; line-height: 1; }
.benefits__card-title { font-family: var(--ff-display); font-size: var(--fs-xl); font-weight: 700; color: var(--navy); line-height: 1.3; padding-right: 3rem; }
.benefits__card--featured .benefits__card-title { color: var(--cream); }
.benefits__card-desc { font-size: var(--fs-md); color: #6B7280; line-height: 1.7; }
.benefits__card--featured .benefits__card-desc { color: rgba(250,247,240,0.75); }
.benefits__card-desc strong { color: var(--navy); }
.benefits__card--featured .benefits__card-desc strong { color: var(--gold-light); }
.benefits__card-highlight { display: inline-block; font-size: var(--fs-sm); font-weight: 600; color: var(--gold-dark); background: rgba(245,158,11,0.1); padding: 0.3rem 0.75rem; border-radius: 4px; border-left: 3px solid var(--gold); }
.benefits__card--featured .benefits__card-highlight { background: rgba(245,158,11,0.15); color: var(--gold-light); }

/* ── PRICING ── */
.pricing { padding-block: var(--section-py); background: var(--cream); position: relative; overflow: hidden; }
.pricing::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, transparent, var(--gold), transparent); }
.pricing .container { display: flex; flex-direction: column; align-items: center; text-align: center; }
.pricing__subtitle { font-size: var(--fs-lg); color: #6B7280; margin-bottom: 3rem; line-height: 1.6; }
.pricing__subtitle strong { color: var(--gold-dark); }
.pricing__grid { display: grid; grid-template-columns: 1fr; gap: 1.5rem; width: 100%; text-align: left; align-items: start; }
@media (min-width: 900px) { .pricing__grid { grid-template-columns: repeat(3, 1fr); align-items: stretch; } }
.pricing__card { background: var(--white); border: 1.5px solid rgba(10,22,40,0.1); border-radius: var(--radius-lg); padding: 2rem; display: flex; flex-direction: column; gap: 1.25rem; transition: all var(--transition-spring); position: relative; }
.pricing__card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.pricing__card--featured { background: var(--navy); border-color: var(--gold); box-shadow: 0 0 0 4px rgba(245,158,11,0.15); transform: translateY(-8px); }
.pricing__card--featured:hover { transform: translateY(-14px); box-shadow: 0 20px 60px rgba(10,22,40,0.3), 0 0 0 4px rgba(245,158,11,0.25); }
.pricing__badge { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: var(--gold); color: var(--navy); font-size: var(--fs-xs); font-weight: 800; letter-spacing: 0.08em; padding: 0.4rem 1.25rem; border-radius: 100px; white-space: nowrap; animation: badge-pulse 2s ease-in-out infinite; }
@keyframes badge-pulse { 0%, 100% { box-shadow: 0 0 0 0 rgba(245,158,11,0.4); } 50% { box-shadow: 0 0 0 8px rgba(245,158,11,0); } }
.pricing__card-header { display: flex; flex-direction: column; gap: 0.5rem; padding-top: 0.5rem; }
.pricing__card-tag { font-size: var(--fs-xs); font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gold-dark); background: rgba(245,158,11,0.1); padding: 0.25rem 0.75rem; border-radius: 100px; width: fit-content; }
.pricing__card-tag--light { background: rgba(245,158,11,0.15); color: var(--gold-light); }
.pricing__card-name { font-family: var(--ff-display); font-size: var(--fs-xl); font-weight: 700; color: var(--navy); line-height: 1.2; }
.pricing__card--featured .pricing__card-name { color: var(--cream); }
.pricing__card-price-wrap { display: flex; flex-direction: column; gap: 0.25rem; }
.pricing__original { font-size: var(--fs-md); color: var(--warm-gray); text-decoration: line-through; }
.pricing__price-row { display: flex; align-items: center; gap: 0.75rem; }
.pricing__price { font-family: var(--ff-display); font-size: var(--fs-3xl); font-weight: 900; color: var(--navy); line-height: 1; }
.pricing__price--featured { color: var(--gold); font-size: var(--fs-4xl); }
.pricing__discount-badge { background: #EF4444; color: #fff; font-size: var(--fs-sm); font-weight: 800; padding: 0.25rem 0.6rem; border-radius: 6px; letter-spacing: 0.02em; animation: badge-pulse 1.5s ease-in-out infinite; }
.pricing__period { font-size: var(--fs-sm); color: var(--warm-gray); margin-top: 0.125rem; }
.pricing__card--featured .pricing__period { color: rgba(250,247,240,0.6); }
.pricing__slots { display: flex; flex-direction: column; gap: 0.5rem; }
.pricing__slots-bar { height: 6px; background: rgba(245,158,11,0.15); border-radius: 100px; overflow: hidden; }
.pricing__slots-fill { height: 100%; background: linear-gradient(90deg, var(--gold-dark), var(--gold)); border-radius: 100px; }
.pricing__slots-text { font-size: var(--fs-sm); color: var(--gold-light); font-weight: 500; }
.pricing__slots-text strong { color: var(--gold); font-weight: 800; }
.pricing__features { display: flex; flex-direction: column; gap: 0.75rem; flex: 1; }
.pricing__feature { display: flex; align-items: flex-start; gap: 0.625rem; font-size: var(--fs-sm); color: #374151; line-height: 1.5; }
.pricing__card--featured .pricing__feature { color: rgba(250,247,240,0.85); }
.pricing__feature--muted { opacity: 0.45; }
.pricing__feature-icon { flex-shrink: 0; width: 18px; height: 18px; border-radius: 50%; background: rgba(16,185,129,0.12); color: #059669; font-size: 0.7rem; font-weight: 800; display: flex; align-items: center; justify-content: center; margin-top: 2px; }
.pricing__feature-icon--no { background: rgba(156,163,175,0.12); color: #9CA3AF; }
.pricing__card--featured .pricing__feature-icon { background: rgba(245,158,11,0.18); color: var(--gold); }
.pricing__guarantee { font-size: var(--fs-xs); color: rgba(250,247,240,0.55); text-align: center; margin-top: -0.5rem; line-height: 1.5; }
.pricing__footer-note { margin-top: 2.5rem; font-size: var(--fs-md); color: #6B7280; line-height: 1.6; }
.pricing__footer-link { color: var(--gold-dark); font-weight: 600; text-decoration: underline; text-decoration-color: rgba(217,119,6,0.3); transition: color var(--transition-fast); }
.pricing__footer-link:hover { color: var(--navy); }

/* ── TESTIMONIALS ── */
.testimonials { padding-block: var(--section-py); background: var(--navy); overflow: hidden; }
.testimonials .container { display: flex; flex-direction: column; align-items: center; text-align: center; }
.testimonials .section-headline { color: var(--cream); }
.testimonials__track { display: grid; grid-template-columns: 1fr; gap: 1.5rem; width: 100%; text-align: left; }
@media (min-width: 768px) { .testimonials__track { grid-template-columns: repeat(3, 1fr); } }
.testimonials__card { background: rgba(250,247,240,0.04); border: 1px solid rgba(250,247,240,0.08); border-radius: var(--radius-md); padding: 2rem; display: flex; flex-direction: column; gap: 1rem; transition: all var(--transition-base); }
.testimonials__card--accent { background: rgba(245,158,11,0.08); border-color: rgba(245,158,11,0.2); }
.testimonials__card:hover { transform: translateY(-4px); border-color: rgba(245,158,11,0.3); }
.testimonials__stars { color: var(--gold); font-size: var(--fs-sm); letter-spacing: 0.1em; }
.testimonials__text { font-size: var(--fs-md); color: rgba(250,247,240,0.82); line-height: 1.7; font-style: italic; flex: 1; }
.testimonials__author { display: flex; align-items: center; gap: 0.875rem; border-top: 1px solid rgba(250,247,240,0.08); padding-top: 1rem; }
.testimonials__avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--gold); color: var(--navy); font-weight: 700; font-size: var(--fs-sm); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.testimonials__avatar--dark { background: var(--navy-light); color: var(--gold); border: 1px solid var(--gold); }
.testimonials__author strong { font-size: var(--fs-sm); font-weight: 600; color: var(--cream); display: block; }
.testimonials__author span { font-size: var(--fs-xs); color: var(--warm-gray); }

/* ── CTA FINAL ── */
.cta-final { padding-block: var(--section-py); background: var(--navy-mid); position: relative; overflow: hidden; }
.cta-final__bg-glow { position: absolute; border-radius: 50%; filter: blur(80px); pointer-events: none; }
.cta-final__bg-glow--1 { width: 400px; height: 400px; background: rgba(245,158,11,0.06); top: -100px; left: -100px; }
.cta-final__bg-glow--2 { width: 300px; height: 300px; background: rgba(245,158,11,0.04); bottom: -80px; right: -80px; }
.cta-final__inner { display: grid; grid-template-columns: 1fr; gap: 3rem; align-items: center; position: relative; z-index: 1; }
@media (min-width: 1024px) { .cta-final__inner { grid-template-columns: 1fr 1fr; gap: 5rem; } }
.cta-final__headline { font-family: var(--ff-display); font-size: clamp(var(--fs-3xl), 4vw, var(--fs-5xl)); font-weight: 900; line-height: 1.15; color: var(--cream); margin-bottom: 1.5rem; }
.cta-final__headline em { font-style: italic; color: var(--gold); }
.cta-final__desc { font-size: var(--fs-lg); color: rgba(250,247,240,0.8); line-height: 1.7; margin-bottom: 2rem; }
.cta-final__desc strong { color: var(--gold-light); }
.cta-final__offer { background: rgba(245,158,11,0.08); border: 1px solid rgba(245,158,11,0.25); border-radius: var(--radius-md); padding: 1.5rem 2rem; display: flex; flex-direction: column; gap: 0.875rem; }
.cta-final__offer-badge { display: inline-flex; align-items: center; gap: 0.5rem; background: var(--gold); color: var(--navy); font-size: var(--fs-sm); font-weight: 700; padding: 0.3rem 0.875rem; border-radius: 4px; width: fit-content; letter-spacing: 0.05em; }
.cta-final__offer p { font-size: var(--fs-md); color: rgba(250,247,240,0.9); line-height: 1.6; }
.cta-final__offer strong { color: var(--gold-light); }
.cta-final__offer-countdown { display: flex; align-items: center; gap: 0.5rem; margin-top: 0.5rem; }
.cta-final__countdown-item { display: flex; flex-direction: column; align-items: center; gap: 0.25rem; background: var(--navy); border: 1px solid rgba(245,158,11,0.2); border-radius: var(--radius-sm); padding: 0.5rem 0.875rem; min-width: 64px; }
.cta-final__countdown-item span:first-child { font-family: var(--ff-display); font-size: var(--fs-2xl); font-weight: 900; color: var(--gold); line-height: 1; }
.cta-final__countdown-item span:last-child { font-size: var(--fs-xs); color: var(--warm-gray); text-transform: uppercase; letter-spacing: 0.1em; }
.cta-final__countdown-sep { font-family: var(--ff-display); font-size: var(--fs-2xl); font-weight: 900; color: var(--gold); line-height: 1; padding-bottom: 18px; }

/* Form */
.cta-final__form-wrap { background: var(--white); border-radius: var(--radius-lg); padding: 2.5rem; box-shadow: var(--shadow-lg); }
.cta-form__title { font-family: var(--ff-display); font-size: var(--fs-2xl); font-weight: 700; color: var(--navy); margin-bottom: 0.5rem; line-height: 1.3; }
.cta-form__subtitle { font-size: var(--fs-sm); color: #6B7280; margin-bottom: 1.75rem; line-height: 1.5; }
.cta-form__field { display: flex; flex-direction: column; gap: 0.375rem; margin-bottom: 1.25rem; }
.cta-form__label { font-size: var(--fs-sm); font-weight: 600; color: var(--navy); }
.cta-form__input, .cta-form__select { width: 100%; padding: 0.75rem 1rem; border: 1.5px solid var(--cream-dark); border-radius: var(--radius-sm); font-family: var(--ff-body); font-size: var(--fs-md); color: var(--navy); background: var(--white); transition: border-color var(--transition-fast), box-shadow var(--transition-fast); outline: none; }
.cta-form__input:focus, .cta-form__select:focus { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(245,158,11,0.12); }
.cta-form__input.error { border-color: var(--red-warn); }
.cta-form__error { font-size: var(--fs-xs); color: var(--red-warn); min-height: 1rem; }
.cta-form__success { display: flex; align-items: flex-start; gap: 0.75rem; background: rgba(16,185,129,0.08); border: 1px solid rgba(16,185,129,0.2); border-radius: var(--radius-sm); padding: 1rem; margin-top: 1rem; color: #065F46; font-size: var(--fs-sm); line-height: 1.5; }
.cta-form__success[hidden] { display: none; }
.cta-form__privacy { font-size: var(--fs-xs); color: var(--warm-gray); text-align: center; margin-top: 0.875rem; }

/* ── FOOTER ── */
.footer { background: var(--navy); border-top: 1px solid rgba(245,158,11,0.1); padding-block: 3rem 0; }
.footer__inner { display: grid; grid-template-columns: 1fr; gap: 2.5rem; padding-bottom: 2.5rem; }
@media (min-width: 768px) { .footer__inner { grid-template-columns: 2fr 1fr 1fr; } }
.footer__brand { display: flex; flex-direction: column; gap: 0.75rem; }
.footer__brand-name { font-family: var(--ff-display); font-size: var(--fs-2xl); font-weight: 900; color: var(--white); letter-spacing: 0.05em; }
.footer__brand-desc { font-size: var(--fs-sm); color: var(--warm-gray); line-height: 1.6; max-width: 30ch; }
.footer__links h4 { font-size: var(--fs-sm); font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gold-light); margin-bottom: 1rem; }
.footer__links ul { display: flex; flex-direction: column; gap: 0.625rem; }
.footer__links a, .footer__links span { font-size: var(--fs-sm); color: var(--warm-gray); transition: color var(--transition-fast); }
.footer__links a:hover { color: var(--gold-light); }
.footer__bottom { border-top: 1px solid rgba(250,247,240,0.06); padding-block: 1.5rem; text-align: center; }
.footer__bottom p { font-size: var(--fs-xs); color: var(--warm-gray); }

/* ── SCROLL PROGRESS BAR ── */
.scroll-progress { position: fixed; top: 0; left: 0; height: 3px; background: var(--gold); z-index: 1000; transition: width 50ms linear; transform-origin: left; }

/* ══════════════════════════════════
   NÚT ZALO NỔI
══════════════════════════════════ */
.zalo-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: #0068FF;
  border-radius: 50px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem 0.75rem 1rem;
  box-shadow: 0 4px 20px rgba(0,104,255,0.45);
  z-index: 998;
  transition: all 0.3s ease;
  text-decoration: none;
  animation: zalo-bounce 3s ease-in-out infinite;
}
.zalo-float:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 8px 32px rgba(0,104,255,0.65);
  background: #0058D6;
  animation: none;
}
.zalo-float__icon { display: flex; align-items: center; justify-content: center; }
.zalo-float__label {
  color: #fff;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}
@keyframes zalo-bounce {
  0%, 100% { transform: translateY(0); box-shadow: 0 4px 20px rgba(0,104,255,0.45); }
  50% { transform: translateY(-6px); box-shadow: 0 10px 30px rgba(0,104,255,0.55); }
}

/* ══════════════════════════════════
   STICKY MOBILE CTA BAR
══════════════════════════════════ */
.mobile-sticky-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999;
  background: var(--navy);
  border-top: 1px solid rgba(245,158,11,0.25);
  padding: 0.75rem 1rem;
  gap: 0.625rem;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.25);
}
.mobile-sticky-cta__btn {
  flex: 1;
  background: var(--gold);
  color: var(--navy);
  font-weight: 700;
  font-size: 0.9rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  text-align: center;
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
}
.mobile-sticky-cta__zalo {
  background: #0068FF;
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  white-space: nowrap;
}

/* ══════════════════════════════════
   RESPONSIVE MOBILE
══════════════════════════════════ */
@media (max-width: 767px) {
  /* Hiện sticky CTA bar trên mobile */
  .mobile-sticky-cta { display: flex; }
  /* Ẩn Zalo float (tránh chồng lên sticky bar) */
  .zalo-float { display: none; }
  /* Thêm padding bottom để sticky bar không che nội dung */
  body { padding-bottom: 5rem; }
}

@media (max-width: 639px) {
  :root { --section-py: 3.5rem; }
  .hero__stats { gap: 1rem; }
  .hero__stat-num { font-size: var(--fs-2xl); }
  .hero__stat-divider { display: none; }
  .cta-final__form-wrap { padding: 1.75rem 1.25rem; }
  .pricing__card--featured { transform: none; }
  /* Ẩn floating cards trên màn hình nhỏ (tránh tràn) */
  .solution__floating-card { display: none; }
  /* Ảnh solution responsive */
  .solution__img { height: clamp(200px, 55vw, 300px); }
  /* Hero phone CTA – ẩn chữ "Tìm hiểu thêm" trên mobile nhỏ */
  .hero__phone-cta { font-size: 0.9rem; }
  /* Form padding thoải mái hơn */
  .cta-form__title { font-size: var(--fs-xl); }
  /* Pricing grid 1 cột */
  .pricing__grid { gap: 1rem; }
  .pricing__card { padding: 1.5rem; }
  /* Nav padding mobile */
  .nav__inner { padding: 1rem 1.25rem; }
}