/* ==========================================================================
   Nha khoa AVA — Trồng răng Niềng răng trả góp landing page
   Brand accent: #89b135
   ========================================================================== */

:root{
  --brand: #89b135;
  --brand-dark: #5c7a20;
  --brand-darker: #3c5216;
  --brand-pale: #eef4e1;
  --brand-pale-2: #e2ecd0;
  --ink: #202417;
  --ink-soft: #4c5240;
  --ink-faint: #767d67;
  --paper: #fbfaf5;
  --paper-alt: #f2f0e4;
  --white: #ffffff;
  --line: #e3e0cf;
  --line-strong: #cfccb8;
  --danger: #b0472f;
  --radius-sm: 6px;
  --radius-md: 14px;
  --radius-lg: 26px;
  --shadow-card: 0 1px 2px rgba(32,36,23,.05), 0 10px 24px -14px rgba(32,36,23,.28);
  --maxw: 1180px;
  --sidebar-w: 58px;
}

*,*::before,*::after{ box-sizing: border-box; }
html{
  scroll-behavior: smooth; scroll-padding-top: 84px;
  overflow-x:hidden; width:100%;
  overscroll-behavior-x:none;
}
body{
  margin:0;
  font-family:"Be Vietnam Pro", "Segoe UI", Arial, sans-serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden; width:100%;
  overscroll-behavior-x:none;
  position:relative;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ margin:0; font-weight:700; letter-spacing:-.01em; color:var(--ink); }
p{ margin:0; }
button{ font-family:inherit; cursor:pointer; }
.container{ max-width:var(--maxw); margin:0 auto; padding:0 24px; }
.visually-hidden{ position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap; }
::selection{ background:var(--brand); color:#fff; }

/* ---------- eyebrow / kicker ---------- */
.kicker{
  display:inline-flex; align-items:center; gap:8px;
  font-size:13px; font-weight:600; color:var(--brand-dark);
  background:var(--brand-pale); border:1px solid var(--brand-pale-2);
  padding:6px 14px 6px 12px; border-radius:99px; margin-bottom:18px;
}
.kicker .dot{ width:6px; height:6px; border-radius:50%; background:var(--brand); flex:none; }

.section{ padding:76px 0; }
.section-alt{ background:var(--paper-alt); }
.section-head{ max-width:660px; margin-bottom:44px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }
.section-head h2{ font-size:clamp(26px,3.4vw,38px); line-height:1.15; }
.section-head p{ margin-top:14px; font-size:17px; color:var(--ink-soft); max-width:56ch; }
.section-head.center p{ margin-left:auto; margin-right:auto; }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:14px 26px; border-radius:99px; font-size:15px; font-weight:600;
  border:1.5px solid transparent; white-space:nowrap; transition:transform .15s ease, background .15s ease, border-color .15s ease;
}
.btn:active{ transform:scale(.97); }
.btn-primary{ background:var(--brand); color:#16210a; }
.btn-primary:hover{ background:var(--brand-dark); color:#fff; }
.btn-outline{ border-color:var(--line-strong); color:var(--ink); background:transparent; }
.btn-outline:hover{ border-color:var(--brand-dark); color:var(--brand-darker); }
.btn-ghost-light{ border-color:rgba(255,255,255,.5); color:#fff; }
.btn-ghost-light:hover{ background:rgba(255,255,255,.12); }
.btn-block{ width:100%; }

/* ================= HEADER ================= */
.policy-strip{
  background:var(--brand-darker); color:#fff; font-size:12.5px; font-weight:600;
  text-align:center; padding:7px 16px; line-height:1.4;
}
.policy-strip i{ margin-right:6px; }
.policy-strip strong{ color:#fff; }
.policy-note{
  display:flex; gap:10px; align-items:flex-start; background:var(--brand-pale);
  border:1px solid var(--brand); border-radius:var(--radius-md); padding:14px 16px;
  margin-top:18px; font-size:13.5px; color:var(--ink); line-height:1.5;
}
.policy-note i{ color:var(--brand-darker); font-size:16px; margin-top:2px; flex:none; }
.site-header{
  position:sticky; top:0; z-index:60;
  background:rgba(251,250,245,.92); backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.header-row{ display:flex; align-items:center; justify-content:space-between; gap:20px; padding:12px 24px; }
.brand{ display:flex; align-items:center; gap:10px; flex:none; }
.brand img{ height:40px; width:auto; }
.brand-text{ display:flex; flex-direction:column; line-height:1.1; }
.brand-text strong{ font-size:16px; font-weight:800; color:var(--brand-darker); }
.brand-text span{ font-size:11px; color:var(--ink-faint); letter-spacing:.02em; }

.main-nav{ display:flex; align-items:center; gap:28px; }
.main-nav a{ font-size:14.5px; font-weight:500; color:var(--ink-soft); padding:6px 0; border-bottom:2px solid transparent; }
.main-nav a:hover{ color:var(--brand-darker); border-color:var(--brand); }

.header-actions{ display:flex; align-items:center; gap:10px; flex:none; }
.header-hotline{ display:flex; align-items:center; gap:8px; font-weight:700; color:var(--brand-darker); font-size:14.5px; }
.header-hotline i{ font-size:18px; }

.nav-toggle{ display:none; width:40px; height:40px; align-items:center; justify-content:center; border-radius:10px; border:1px solid var(--line-strong); background:var(--white); }

/* ---- Nav dropdown: Kiến thức niềng răng ---- */
.nav-item.has-dropdown{ position:relative; }
.nav-dd-toggle{
  font-family:inherit; font-size:14.5px; font-weight:500; color:var(--ink-soft);
  background:none; border:none; padding:6px 0; border-bottom:2px solid transparent;
  display:flex; align-items:center; gap:6px; cursor:pointer;
}
.nav-dd-toggle:hover{ color:var(--brand-darker); }
.nav-dd-toggle i{ font-size:11px; transition:transform .15s ease; }
.nav-item.open .nav-dd-toggle i{ transform:rotate(180deg); }

/* The gap between the button and the panel is INSIDE .nav-dropdown itself
   (as padding-top), so the hoverable area is continuous - no dead zone
   where the mouse "falls out" of the menu while moving down to it. */
.nav-dropdown{
  position:absolute; top:100%; left:50%; transform:translateX(-50%);
  padding-top:14px; width:min(560px, 92vw);
  opacity:0; pointer-events:none; transition:opacity .15s ease; z-index:60;
}
.nav-item.has-dropdown:hover .nav-dropdown,
.nav-item.open .nav-dropdown{ opacity:1; pointer-events:auto; }
.nav-dropdown-inner{
  background:var(--white); border:1px solid var(--line); border-radius:var(--radius-md);
  box-shadow:0 20px 40px -14px rgba(20,26,12,.25); padding:10px; display:flex; flex-direction:column; gap:4px;
}
.nav-article-card{
  display:flex; align-items:center; gap:14px; padding:10px; border-radius:12px; border-bottom:none !important;
}
.nav-article-card:hover{ background:var(--brand-pale); }
.nav-article-card img{
  width:104px; height:66px; object-fit:cover; border-radius:8px; flex:none; background:var(--line);
}
.nav-article-card .nac-title{ display:block; font-size:14.5px; font-weight:700; color:var(--ink); line-height:1.35; margin-bottom:4px; }
.nav-article-card:hover .nac-title{ color:var(--brand-darker); }
.nav-article-card .nac-desc{ display:block; font-size:12.5px; color:var(--ink-soft); line-height:1.4; }

.nav-toggle i{ font-size:20px; }

/* ================= HERO ================= */
.hero{ padding:56px 0 72px; position:relative; overflow:hidden; }
.hero .container{ display:grid; grid-template-columns:1.05fr .95fr; gap:52px; align-items:center; }
.hero-eyebrow-row{ display:flex; flex-wrap:wrap; gap:10px; margin-bottom:20px; }
.pill-badge{ font-size:12.5px; font-weight:600; color:var(--brand-darker); background:var(--brand-pale); border:1px solid var(--brand-pale-2); padding:5px 12px; border-radius:99px; }
.hero h1{ font-size:clamp(32px,4.4vw,52px); line-height:1.08; letter-spacing:-.02em; }
.hero h1 .accent{ color:var(--brand-dark); }
.hero-sub{ margin-top:20px; font-size:18px; color:var(--ink-soft); max-width:52ch; }
.hero-cta-row{ display:flex; flex-wrap:wrap; gap:14px; margin-top:32px; }
.hero-stats{ display:flex; gap:0; margin-top:44px; border-top:1px solid var(--line); padding-top:24px; }
.hero-stats .stat{ flex:1; padding-right:18px; }
.hero-stats .stat b{ display:block; font-size:26px; color:var(--brand-darker); font-weight:800; }
.hero-stats .stat span{ font-size:13px; color:var(--ink-faint); }

.hero-media{ position:relative; }
.hero-media-frame{
  position:relative; border-radius:var(--radius-lg); overflow:hidden; background:var(--brand-pale);
  aspect-ratio:4/5; box-shadow:var(--shadow-card);
}
.hero-media-frame img{ width:100%; height:100%; object-fit:cover; }
.hero-floating-card{
  position:absolute; left:-18px; bottom:24px; background:#fff; border-radius:var(--radius-md);
  padding:14px 18px; box-shadow:0 14px 30px -12px rgba(32,36,23,.35); display:flex; gap:12px; align-items:center;
  border:1px solid var(--line); max-width:230px;
}
.hero-floating-card i{ font-size:26px; color:var(--brand-dark); flex:none; }
.hero-floating-card b{ display:block; font-size:14px; }
.hero-floating-card span{ font-size:12px; color:var(--ink-faint); }

/* ================= PROBLEM / SOLUTION ================= */
.split{ display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
.split.reverse{ direction:rtl; }
.split.reverse > *{ direction:ltr; }
.check-list li{ display:flex; gap:12px; padding:10px 0; border-bottom:1px solid var(--line); font-size:15.5px; color:var(--ink-soft); }
.check-list li:last-child{ border-bottom:none; }
.check-list i{ color:var(--brand-dark); font-size:19px; flex:none; margin-top:1px; }
.mini-card-grid{ display:grid; grid-template-columns:1fr 1fr; gap:14px; }
.mini-card{ background:var(--white); border:1px solid var(--line); border-radius:var(--radius-md); padding:18px; }
.mini-card i{ font-size:22px; color:var(--brand-dark); }
.mini-card h4{ font-size:15px; margin-top:10px; }
.mini-card p{ font-size:13.5px; color:var(--ink-faint); margin-top:6px; }

/* ================= BENEFITS ================= */
.benefit-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.benefit-card{ background:var(--white); border:1px solid var(--line); border-radius:var(--radius-md); padding:26px; transition:border-color .15s ease, transform .15s ease; }
.benefit-card:hover{ border-color:var(--brand); transform:translateY(-2px); }
.benefit-card .num{ font-size:13px; font-weight:700; color:var(--brand-dark); letter-spacing:.04em; }
.benefit-card h3{ font-size:18px; margin-top:12px; }
.benefit-card p{ font-size:14.5px; color:var(--ink-soft); margin-top:8px; }

/* ================= PROCESS ================= */
.process-track{ display:grid; grid-template-columns:repeat(4,1fr); gap:0; counter-reset:step; position:relative; }
.process-track::before{ content:""; position:absolute; top:26px; left:6%; right:6%; height:1px; background:var(--line-strong); z-index:0; }
.process-step{ position:relative; z-index:1; padding:0 14px; text-align:left; }
.process-step .step-num{
  width:52px; height:52px; border-radius:50%; background:var(--white); border:1.5px solid var(--brand);
  display:flex; align-items:center; justify-content:center; font-weight:800; color:var(--brand-darker); font-size:18px; margin-bottom:18px;
}
.process-step h4{ font-size:16px; }
.process-step p{ font-size:13.5px; color:var(--ink-faint); margin-top:6px; }

/* ================= AUDIENCE CARDS ================= */
.audience-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:18px; }
.audience-card{ background:var(--white); border:1px solid var(--line); border-radius:var(--radius-md); padding:22px; }
.audience-card i{ font-size:24px; color:var(--brand-dark); }
.audience-card h3{ font-size:16px; margin-top:12px; line-height:1.3; }
.audience-card p{ font-size:13.5px; color:var(--ink-faint); margin-top:8px; }

/* ================= PRICING ================= */
.price-table-wrap{ overflow-x:auto; -webkit-overflow-scrolling:touch; min-width:0; max-width:100%; border:1px solid var(--line); border-radius:var(--radius-md); background:var(--white); }
table.price-table{ width:100%; border-collapse:collapse; min-width:560px; font-size:14.5px; }
table.price-table caption{ text-align:left; padding:18px 20px 6px; font-weight:700; font-size:15px; color:var(--brand-darker); }
table.price-table th, table.price-table td{ padding:13px 20px; text-align:left; border-bottom:1px solid var(--line); }
table.price-table thead th{ font-size:12.5px; text-transform:uppercase; letter-spacing:.04em; color:var(--ink-faint); background:var(--paper-alt); }
table.price-table tbody tr:last-child td{ border-bottom:none; }
table.price-table td.price{ font-weight:700; color:var(--brand-darker); white-space:nowrap; }
.price-note{ font-size:13px; color:var(--ink-faint); margin-top:14px; }
.price-tables-grid{ display:flex; flex-direction:column; gap:28px; }

/* ================= COMPARISON ================= */
.compare-wrap{ display:grid; grid-template-columns:1fr 1fr; gap:20px; }
.compare-card{ border-radius:var(--radius-md); padding:26px; border:1px solid var(--line); background:var(--white); }
.compare-card.highlight{ border-color:var(--brand); background:linear-gradient(180deg,var(--brand-pale),#fff 55%); }
.compare-card h3{ font-size:18px; display:flex; align-items:center; gap:10px; }
.compare-card h3 i{ font-size:20px; color:var(--brand-dark); }
.compare-card ul{ margin-top:16px; display:flex; flex-direction:column; gap:11px; }
.compare-card li{ font-size:14.5px; color:var(--ink-soft); display:flex; gap:10px; }
.compare-card li i{ flex:none; margin-top:3px; font-size:16px; }
.compare-card.highlight li i{ color:var(--brand-dark); }
.compare-card:not(.highlight) li i{ color:var(--ink-faint); }

/* ================= GALLERY ================= */
.gallery-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
.gallery-item{ position:relative; border-radius:var(--radius-md); overflow:hidden; border:1px solid var(--line); background:var(--white); cursor:zoom-in; }
.gallery-item .thumb-frame{ aspect-ratio:3/4; width:100%; background:var(--paper-alt); display:flex; align-items:center; justify-content:center; overflow:hidden; }
.gallery-item img{ width:100%; height:100%; object-fit:contain; transition:transform .3s ease; }
.gallery-item:hover img{ transform:scale(1.04); }
.gallery-item .tag{
  position:absolute; left:10px; bottom:10px; background:rgba(20,26,12,.72); color:#fff; font-size:11px; font-weight:600;
  padding:4px 9px; border-radius:99px; letter-spacing:.02em;
}
.gallery-more{ text-align:center; margin-top:28px; }
.gallery-more .btn{ white-space:normal; max-width:100%; text-align:center; }

/* ================= INNER PAGE HERO (bảng giá / hình ảnh / giới thiệu) ================= */
.page-hero{ padding:44px 0 40px; background:linear-gradient(180deg,var(--brand-pale) 0%, var(--paper) 100%); border-bottom:1px solid var(--line); }
.breadcrumb{ display:flex; flex-wrap:wrap; align-items:center; gap:8px; font-size:13px; color:var(--ink-faint); margin-bottom:16px; }
.breadcrumb a{ color:var(--brand-darker); font-weight:600; }
.breadcrumb a:hover{ text-decoration:underline; }
.page-hero h1{ font-size:clamp(26px,3.6vw,40px); line-height:1.15; max-width:820px; }
.page-hero .hero-sub{ margin-top:14px; max-width:70ch; }

/* ================= ABOUT PAGE ================= */
.about-quote{ border-left:3px solid var(--brand); padding:6px 0 6px 22px; margin:0 0 26px; font-style:italic; color:var(--ink-soft); font-size:16px; }
.about-body p{ font-size:16px; color:var(--ink-soft); margin-top:16px; }
.about-body p:first-child{ margin-top:0; }
.about-credentials{ margin-top:28px; display:grid; grid-template-columns:1fr 1fr; gap:14px; }
.about-credentials .cred-card{ background:var(--white); border:1px solid var(--line); border-radius:var(--radius-md); padding:18px 20px; }
.about-credentials .cred-card b{ display:block; font-size:14px; color:var(--brand-darker); margin-bottom:4px; }
.about-credentials .cred-card span{ font-size:14px; color:var(--ink-soft); }
.about-media{ border-radius:var(--radius-lg); overflow:hidden; border:1px solid var(--line); box-shadow:var(--shadow-card); }
.about-media img{ width:100%; height:auto; display:block; }

/* ================= PRICE PAGE EXTRA ================= */
.price-legend{ font-size:13px; color:var(--ink-faint); margin:-24px 0 32px; }

/* lightbox */
.lightbox{ position:fixed; inset:0; z-index:200; background:rgba(16,19,10,.9); display:none; align-items:center; justify-content:center; padding:28px; }
.lightbox.open{ display:flex; }
.lightbox img{ max-width:min(90vw,720px); max-height:82vh; border-radius:10px; object-fit:contain; }
.lightbox-close{ position:absolute; top:20px; right:24px; width:42px; height:42px; border-radius:50%; background:rgba(255,255,255,.12); color:#fff; display:flex; align-items:center; justify-content:center; border:1px solid rgba(255,255,255,.3); }
.lightbox-caption{ position:absolute; bottom:24px; left:0; right:0; text-align:center; color:#f1f0e4; font-size:13px; }

/* ================= DOCTOR ================= */
.doctor-card{ display:grid; grid-template-columns:220px 1fr; gap:32px; align-items:center; background:var(--white); border:1px solid var(--line); border-radius:var(--radius-lg); padding:32px; }
.doctor-avatar{ width:100%; aspect-ratio:1/1; border-radius:50%; background:var(--brand-pale); display:flex; align-items:center; justify-content:center; overflow:hidden; border:3px solid var(--brand-pale-2); }
.doctor-avatar i{ font-size:64px; color:var(--brand-dark); }
.doctor-info h3{ font-size:22px; }
.doctor-info .role{ font-size:14px; color:var(--brand-dark); font-weight:600; margin-top:4px; }
.doctor-info p{ margin-top:14px; font-size:15px; color:var(--ink-soft); }
.doctor-badges{ display:flex; flex-wrap:wrap; gap:10px; margin-top:16px; }
.doctor-badges span{ font-size:12.5px; font-weight:600; color:var(--brand-darker); background:var(--brand-pale); padding:6px 12px; border-radius:99px; }

/* ================= FAQ ================= */
.faq-list{ display:flex; flex-direction:column; gap:12px; max-width:820px; }
.faq-item{ border:1px solid var(--line); border-radius:var(--radius-md); background:var(--white); overflow:hidden; }
.faq-q{ width:100%; display:flex; align-items:center; justify-content:space-between; gap:16px; padding:18px 22px; background:none; border:none; text-align:left; font-size:16px; font-weight:600; color:var(--ink); }
.faq-q i{ font-size:20px; color:var(--brand-dark); transition:transform .2s ease; flex:none; }
.faq-item.open .faq-q i{ transform:rotate(45deg); }
.faq-a{ max-height:0; overflow:hidden; transition:max-height .25s ease; }
.faq-a-inner{ padding:0 22px 20px; font-size:14.5px; color:var(--ink-soft); }
.faq-item.open .faq-a{ max-height:600px; }
.faq-h{ margin:0; font-size:inherit; line-height:inherit; font-weight:inherit; }

/* ================= CONTACT ================= */
.contact-wrap{ display:grid; grid-template-columns:1fr 1fr; gap:0; border-radius:var(--radius-lg); overflow:hidden; border:1px solid var(--line); }
.contact-info{ background:var(--brand-darker); color:#fff; padding:44px 40px; }
.contact-info h3{ color:#fff; font-size:22px; }
.contact-info p{ margin-top:10px; color:rgba(255,255,255,.78); font-size:14.5px; }
.contact-list{ margin-top:26px; display:flex; flex-direction:column; gap:16px; }
.contact-list li{ display:flex; gap:14px; align-items:flex-start; font-size:14.5px; }
.contact-list i{ font-size:19px; color:var(--brand); flex:none; margin-top:2px; }
.contact-list b{ display:block; margin-bottom:2px; }
.contact-list span, .contact-list a{ color:rgba(255,255,255,.82); }
.contact-social{ display:flex; gap:10px; margin-top:28px; }
.contact-social a{ width:40px; height:40px; border-radius:50%; border:1px solid rgba(255,255,255,.3); display:flex; align-items:center; justify-content:center; }
.contact-social a:hover{ background:rgba(255,255,255,.14); }
.contact-map{ min-height:340px; }
.contact-map iframe{ width:100%; height:100%; min-height:340px; border:0; display:block; }

.booking-form{ background:var(--white); padding:40px; }
.booking-form h3{ font-size:19px; }
.field{ margin-top:16px; }
.field label{ display:block; font-size:13px; font-weight:600; color:var(--ink-soft); margin-bottom:6px; }
.field input, .field select, .field textarea{
  width:100%; padding:12px 14px; border-radius:10px; border:1px solid var(--line-strong); font-family:inherit; font-size:14.5px; background:var(--paper);
}
.field input:focus, .field select:focus, .field textarea:focus{ outline:2px solid var(--brand); outline-offset:1px; }
.field-row{ display:grid; grid-template-columns:1fr 1fr; gap:14px; }
.form-note{ font-size:12.5px; color:var(--ink-faint); margin-top:14px; }
.form-status{ font-size:13.5px; margin-top:12px; display:none; padding:10px 14px; border-radius:8px; }
.form-status.show{ display:block; }
.form-status.ok{ background:var(--brand-pale); color:var(--brand-darker); }

/* ================= TRUST STRIP (EN accreditation banner) ================= */
.trust-strip{ background:var(--brand-pale); border-top:1px solid var(--brand-pale-2); border-bottom:1px solid var(--brand-pale-2); padding:22px 0; }
.trust-strip-head{ display:flex; align-items:center; justify-content:center; gap:10px; font-weight:700; font-size:15px; color:var(--brand-darker); text-align:center; }
.trust-strip-head i{ font-size:18px; }
.trust-strip-items{ display:flex; align-items:center; justify-content:center; gap:18px; flex-wrap:wrap; margin-top:12px; }
.trust-strip-item{ display:flex; align-items:center; gap:8px; font-size:13px; font-weight:600; color:var(--ink-soft); }
.trust-strip-item i{ font-size:15px; color:var(--brand-dark); }
.trust-strip-divider{ width:1px; height:16px; background:var(--brand-pale-2); }
@media (max-width:640px){ .trust-strip-divider{ display:none; } }

.no-hidden-fees{ display:inline-flex; align-items:center; gap:8px; font-size:13px; font-weight:700; color:var(--brand-darker); background:var(--brand-pale); border:1px solid var(--brand-pale-2); padding:7px 14px; border-radius:99px; margin-top:14px; }
.no-hidden-fees i{ font-size:14px; }

/* ================= CTA BANNER ================= */
.cta-banner{ background:var(--brand-darker); color:#fff; border-radius:var(--radius-lg); padding:54px 48px; display:flex; align-items:center; justify-content:space-between; gap:30px; flex-wrap:wrap; }
.cta-banner h2{ color:#fff; font-size:clamp(22px,2.8vw,30px); max-width:480px; }
.cta-banner p{ color:rgba(255,255,255,.75); margin-top:10px; }
.cta-actions{ display:flex; gap:14px; flex-wrap:wrap; }

/* ================= FOOTER ================= */
.site-footer{ background:#161a0f; color:rgba(255,255,255,.72); padding:64px 0 28px; font-size:14px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px; }
.footer-brand{ display:flex; align-items:center; gap:10px; margin-bottom:14px; }
.footer-brand img{ height:34px; }
.footer-brand strong{ color:#fff; font-size:16px; }
.site-footer h5{ color:#fff; font-size:13.5px; margin-bottom:16px; letter-spacing:.02em; }
.site-footer ul{ display:flex; flex-direction:column; gap:10px; }
.site-footer a:hover{ color:#fff; }
.footer-bottom{ margin-top:52px; padding-top:22px; border-top:1px solid rgba(255,255,255,.1); display:flex; flex-wrap:wrap; gap:12px; justify-content:space-between; font-size:12.5px; color:rgba(255,255,255,.5); }

/* ================= FLOATING SIDEBAR ================= */
.float-sidebar{ position:fixed; right:18px; bottom:110px; z-index:90; display:flex; flex-direction:column; gap:10px; }
.float-sidebar a, .float-sidebar button{
  width:52px; height:52px; border-radius:50%; display:flex; align-items:center; justify-content:center;
  color:#fff; font-size:24px; box-shadow:0 8px 20px -6px rgba(20,26,12,.45); border:none; position:relative;
}
.float-sidebar .fs-hotline{ background:var(--brand); }
.float-sidebar .fs-zalo{ background:transparent; padding:0; overflow:hidden; }
.float-sidebar .fs-zalo img{ width:100%; height:100%; border-radius:50%; object-fit:cover; }
.ico-zalo{ width:1em; height:1em; display:inline-block; vertical-align:-0.16em; border-radius:50%; }
.float-sidebar .fs-messenger{ background:#0084ff; }
.float-sidebar .fs-top{ background:#2c3320; opacity:0; pointer-events:none; transition:opacity .2s ease; }
.float-sidebar .fs-top.show{ opacity:1; pointer-events:auto; }
.fs-ping{ position:absolute; inset:-4px; border-radius:50%; border:2px solid var(--brand); animation:fs-pulse 2.2s ease-out infinite; }
@keyframes fs-pulse{ 0%{ transform:scale(.9); opacity:.8; } 100%{ transform:scale(1.5); opacity:0; } }
.fs-label{
  position:absolute; right:64px; top:50%; transform:translateY(-50%);
  background:#1c2113; color:#fff; font-size:12.5px; font-weight:600; padding:6px 12px; border-radius:8px;
  white-space:nowrap; opacity:0; pointer-events:none; transition:opacity .15s ease;
}
.float-sidebar a:hover .fs-label, .float-sidebar button:hover .fs-label{ opacity:1; }

/* ================= MOBILE ================= */
@media (max-width: 980px){
  .main-nav{ display:none; }
  .main-nav.nav-open{
    display:flex; flex-direction:column; align-items:stretch; gap:2px;
    position:absolute; top:100%; left:0; right:0; width:auto;
    background:var(--white); border-bottom:1px solid var(--line);
    padding:8px 20px 20px; box-shadow:0 16px 30px -14px rgba(20,26,12,.28);
    max-height:calc(100vh - 90px); overflow-y:auto;
  }
  .main-nav.nav-open > a{ padding:13px 0; border-bottom:1px solid var(--line); }
  .nav-toggle{ display:flex; }
  .nav-item.has-dropdown{ width:100%; }
  .nav-dd-toggle{ width:100%; justify-content:space-between; padding:10px 0; }
  .nav-dropdown{
    position:static; opacity:1; pointer-events:auto; width:auto; box-shadow:none;
    padding:0 0 0 10px; display:none; margin-top:2px; transform:none;
  }
  .nav-item.open .nav-dropdown{ display:block; }
  .nav-dropdown-inner{ border:none; box-shadow:none; padding:0; gap:10px; }
  .nav-article-card{ padding:8px 0; }
  .nav-article-card img{ width:84px; height:56px; }
  .nav-article-card .nac-desc{ display:none; }
  .header-hotline span{ display:none; }
  .hero .container{ grid-template-columns:1fr; }
  .hero-media{ order:-1; max-width:380px; margin:0 auto; }
  .split{ grid-template-columns:1fr; gap:36px; }
  .split.reverse{ direction:ltr; }
  .benefit-grid{ grid-template-columns:1fr 1fr; }
  .process-track{ grid-template-columns:1fr 1fr; gap:28px 16px; }
  .process-track::before{ display:none; }
  .audience-grid{ grid-template-columns:1fr 1fr; }
  .compare-wrap{ grid-template-columns:1fr; }
  .gallery-grid{ grid-template-columns:repeat(3,1fr); }
  .doctor-card{ grid-template-columns:1fr; text-align:center; }
  .doctor-avatar{ width:160px; margin:0 auto; }
  .doctor-badges{ justify-content:center; }
  .contact-wrap{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .cta-banner{ flex-direction:column; align-items:flex-start; }
}

@media (max-width: 640px){
  .section{ padding:54px 0; }
  .container{ padding:0 18px; }
  .header-row{ padding:10px 16px; }
  .policy-strip{ font-size:11.2px; padding:6px 10px; }
  .brand-text span{ display:none; }
  .hero{ padding:32px 0 48px; }
  .hero-stats{ flex-wrap:wrap; gap:18px; }
  .hero-stats .stat{ flex:1 1 40%; padding-right:0; }
  .benefit-grid{ grid-template-columns:1fr; }
  .process-track{ grid-template-columns:1fr; }
  .audience-grid{ grid-template-columns:1fr; }
  .gallery-grid{ grid-template-columns:repeat(2,1fr); gap:10px; }
  .price-note{ padding:0 4px; }
  .doctor-card{ padding:24px; }
  .cta-banner{ padding:36px 26px; }
  .footer-grid{ grid-template-columns:1fr; gap:28px; }
  .float-sidebar{ right:12px; bottom:96px; gap:8px; }
  .float-sidebar a, .float-sidebar button{ width:46px; height:46px; font-size:21px; }
  .fs-label{ display:none; }
  .hero-floating-card{ left:8px; bottom:14px; padding:10px 14px; max-width:190px; }

  /* Bảng giá: bỏ scroll ngang, xếp mỗi dòng thành 1 khối để không bị tràn màn hình */
  .price-table-wrap{ overflow-x:visible; }
  table.price-table{ min-width:0; font-size:14px; }
  table.price-table thead{ display:none; }
  table.price-table, table.price-table tbody, table.price-table tr, table.price-table td{ display:block; width:100%; }
  table.price-table tr{ padding:12px 18px; border-bottom:1px solid var(--line); }
  table.price-table tbody tr:last-child{ border-bottom:none; }
  table.price-table td{ padding:0; border-bottom:none; white-space:normal; }
  table.price-table td:first-child{ margin-bottom:4px; color:var(--ink-soft); }
  table.price-table td.price{ font-size:15px; white-space:normal; word-break:break-word; }
  table.price-table caption{ padding:16px 18px 4px; }
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:.001ms !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
}

/* --- Answer-first, process note, compare table, doctor link --- */
.section-head p.answer-first{ color:var(--ink); font-weight:500; }
.process-note{ margin-top:32px; padding:16px 20px; border-left:4px solid var(--brand); background:var(--brand-pale); border-radius:var(--radius-md); font-size:14.5px; color:var(--ink-soft); max-width:820px; }
.process-note strong{ color:var(--brand-darker); }
.compare-table-wrap{ margin-top:28px; }
table.price-table tbody th{ font-weight:600; color:var(--ink); border-bottom:1px solid var(--line); }
table.price-table tbody tr:last-child th{ border-bottom:none; }
.doctor-link{ display:inline-block; margin-top:14px; font-size:14.5px; font-weight:600; color:var(--brand-dark); }
.doctor-link:hover{ text-decoration:underline; }

/* ================= ẢNH / GALLERY ================= */
.hero-media-frame.has-img{ aspect-ratio:auto; background:var(--white); }
.hero-media-frame.has-img img{ height:auto; display:block; }
.gallery-item[hidden]{ display:none; }
.gallery-item{ cursor:zoom-in; }
.pending{ color:var(--ink-faint); font-weight:600; font-style:italic; }
table.price-table td.price{ white-space:normal; line-height:1.7; }
.hero-media-frame.has-img ~ .hero-floating-card{ bottom:-26px; left:14px; }