/* =========================================================
   BS. Võ Văn Thanh – main.css
   ========================================================= */
:root {
  --navy-950: #03060f;
  --navy-900: #071230;
  --navy-800: #0b1d52;
  --blue-700: #1a43a6;
  --blue-600: #2a5fd0;
  --blue-500: #3f7ae0;
  --blue-300: #8fb7f0;
  --sky-50: #f4f7fc;
  --sky-100: #e9f0f8;
  --sky-200: #d8e3f2;
  --sand: #e3e1da;
  --ink: #0d1220;
  --text: #2a3142;
  --muted: #5d6679;
  --line: #e1e6ee;
  --red: #d4392a;
  --red-700: #b42c1f;
  --red-50: #fdf1ef;
  --white: #fff;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow: 0 10px 30px rgba(7, 18, 48, .08);
  --wrap: 1180px;
  --font: "Lexend", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --hero-grad: linear-gradient(180deg, #6ea4ec 0%, #2f66d6 30%, #12358f 62%, #050b1c 100%);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--font); font-weight: 300; font-size: 16px; line-height: 1.65; color: var(--text); background: var(--white); }
img, svg, video, iframe { max-width: 100%; display: block; }
img { height: auto; }
a { color: var(--blue-700); text-decoration: none; }
a:hover { color: var(--blue-600); }
h1, h2, h3, h4 { color: var(--ink); font-weight: 600; line-height: 1.2; margin: 0 0 .6em; letter-spacing: -.01em; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }
strong, b { font-weight: 600; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--blue-500); outline-offset: 2px; border-radius: 4px; }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 0; z-index: 100; background: var(--ink); color: #fff; padding: .6rem 1rem; }
.skip:focus { left: 1rem; }
.hp { position: absolute; left: -9999px; }

.wrap { width: min(100% - 32px, var(--wrap)); margin-inline: auto; }
.wrap--narrow { width: min(100% - 32px, 820px); }
.section { padding: clamp(56px, 8vw, 96px) 0; }
.section--tint { background: var(--sky-100); }
.section--dark { background: var(--navy-950); color: #c9d3e6; }
.section--dark h2, .section--dark h3 { color: #fff; }
.section--overlap { padding-top: 0; }
.section__head { display: flex; justify-content: space-between; align-items: end; gap: 24px 48px; margin-bottom: 36px; flex-wrap: wrap; }
.section__head > div { max-width: 640px; }
.section__desc { max-width: 420px; color: var(--muted); margin: 0; }

/* Ô giữ chỗ khi chưa có nội dung */
.ph { color: var(--muted); font-style: normal; opacity: .85; }
.section--dark .ph, .hero .ph { color: inherit; opacity: .75; }

/* ---------- Typography ---------- */
.eyebrow { font-size: 12px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--blue-600); margin: 0 0 .9em; }
.eyebrow--light { color: var(--blue-300); }
.eyebrow--red { color: var(--red); }
.display { font-size: clamp(32px, 5vw, 56px); font-weight: 300; line-height: 1.12; margin-bottom: .4em; }
.display strong { font-weight: 700; }
.h-section { font-size: clamp(28px, 4vw, 44px); font-weight: 300; }
.h-section strong { font-weight: 700; }
.h-sub { font-size: clamp(20px, 2.4vw, 26px); margin: 2.4em 0 1em; }
.h-sub:first-child { margin-top: 0; }
.note { font-size: 13px; color: var(--muted); margin-top: 16px; }
.section--dark .note { color: #8a97b3; }
.strong { font-weight: 600; color: var(--ink); }
.link-arrow { font-weight: 500; font-size: 15px; display: inline-flex; gap: .3em; }
.prose { color: var(--text); }
.prose p:last-child { margin-bottom: 0; }
.prose ul { list-style: disc; padding-left: 1.3em; margin-bottom: 1em; }
.prose ol { list-style: decimal; padding-left: 1.3em; margin-bottom: 1em; }
.prose--article { font-size: 17px; margin-top: 32px; }
.prose--article h2 { font-size: 26px; margin-top: 1.6em; }
.prose--article h3 { font-size: 21px; margin-top: 1.4em; }
.prose--article img { border-radius: var(--radius); margin: 1.4em 0; }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5em; min-height: 46px; padding: 10px 22px; border-radius: 999px; border: 1px solid transparent; font-weight: 500; font-size: 15px; line-height: 1.2; cursor: pointer; transition: background .2s, color .2s, border-color .2s, transform .2s; text-align: center; }
.btn:hover { transform: translateY(-1px); }
.btn--red { background: var(--red); color: #fff; }
.btn--red:hover { background: var(--red-700); color: #fff; }
.btn--white { background: #fff; color: var(--navy-900); }
.btn--white:hover { background: var(--sky-100); color: var(--navy-900); }
.btn--ghost { border-color: rgba(255, 255, 255, .45); color: #fff; background: transparent; }
.btn--ghost:hover { background: rgba(255, 255, 255, .1); color: #fff; }
.btn--outline { border-color: var(--blue-700); color: var(--blue-700); background: #fff; }
.btn--text { color: #fff; padding-inline: 4px; }
.btn--text:hover { color: #fff; opacity: .85; }
.btn--block { width: 100%; }

.play { display: grid; place-items: center; width: 64px; height: 64px; border-radius: 50%; background: #fff; color: var(--ink); box-shadow: 0 8px 30px rgba(0, 0, 0, .3); transition: transform .2s; }
.play svg { margin-left: 3px; }
.play--sm { width: 30px; height: 30px; box-shadow: none; }
.play--sm svg { width: 14px; height: 14px; margin-left: 2px; }

/* ---------- Header ---------- */
.site-header { position: sticky; top: 0; z-index: 50; color: #fff; background: linear-gradient(180deg, rgba(3, 12, 34, .97), rgba(6, 20, 52, .95)); backdrop-filter: saturate(140%) blur(12px); -webkit-backdrop-filter: saturate(140%) blur(12px); border-bottom: 1px solid rgba(143, 183, 240, .14); transition: box-shadow .25s; }
.site-header.is-scrolled { box-shadow: 0 10px 30px rgba(3, 8, 24, .35); }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 12px 0; transition: padding .25s; }
.brand { display: inline-flex; align-items: center; flex: none; }
.brand img { display: block; height: 64px; width: auto; transition: height .25s; }
.topbar__actions { display: flex; align-items: center; justify-content: flex-end; gap: 18px; }
.hotline { display: flex; align-items: center; gap: 10px; color: #fff; padding-right: 18px; border-right: 1px solid rgba(255, 255, 255, .12); }
.hotline:hover { color: #fff; }
.hotline__icon { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; background: rgba(63, 122, 224, .18); color: var(--blue-300); box-shadow: inset 0 0 0 1px rgba(143, 183, 240, .35); }
.hotline__text { display: grid; line-height: 1.2; }
.hotline__text small { font-size: 10.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--blue-300); }
.hotline__text strong { font-size: 15px; font-weight: 600; letter-spacing: .02em; }
.socials { display: flex; gap: 6px; }
.socials a { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 50%; color: var(--blue-700); }
.socials a:hover { background: var(--sky-100); }
.site-header .socials a { color: #c9d6ee; }
.site-header .socials a:hover { background: rgba(255, 255, 255, .1); color: #fff; }
.lang { display: flex; border: 1px solid var(--line); border-radius: 999px; padding: 2px; font-size: 12px; font-weight: 600; }
.lang a { padding: 4px 9px; border-radius: 999px; color: var(--muted); }
.lang a[aria-current] { background: var(--navy-900); color: #fff; }
.site-header .lang { border-color: rgba(255, 255, 255, .18); }
.site-header .lang a { color: #a9b6cf; }
.site-header .lang a:hover { color: #fff; }
.site-header .lang a[aria-current] { background: #fff; color: var(--navy-900); }
.menu-toggle { display: none; background: none; border: 0; padding: 8px; color: #fff; cursor: pointer; }
.menu-toggle .i-close { display: none; }
.menu-toggle[aria-expanded="true"] .i-open { display: none; }
.menu-toggle[aria-expanded="true"] .i-close { display: block; }

.site-nav { border-top: 1px solid rgba(143, 183, 240, .1); }
.nav { display: flex; justify-content: center; gap: 4px 36px; flex-wrap: wrap; }
.nav > li { position: relative; }
.nav a { display: block; padding: 13px 0; font-size: 12.5px; font-weight: 500; letter-spacing: .09em; text-transform: uppercase; color: #c9d6ee; border-bottom: 2px solid transparent; transition: color .15s, border-color .15s; }
.nav > .current-menu-item > a, .nav > .current-menu-ancestor > a, .nav > .current-page-ancestor > a, .nav > li > a:hover { border-bottom-color: var(--red); color: #fff; }
.nav .sub-menu { position: absolute; top: 100%; left: -16px; min-width: 260px; background: #fff; border-radius: 12px; box-shadow: 0 16px 40px rgba(3, 8, 24, .3); padding: 8px; opacity: 0; visibility: hidden; transform: translateY(6px); transition: .18s; z-index: 10; }
.nav li:hover > .sub-menu, .nav li:focus-within > .sub-menu { opacity: 1; visibility: visible; transform: none; }
.nav .sub-menu a { padding: 9px 12px; text-transform: none; letter-spacing: 0; font-weight: 400; font-size: 14px; border: 0; border-radius: 8px; color: var(--ink); }
.nav .sub-menu a:hover { background: var(--sky-100); color: var(--ink); }
.site-nav__mobile { display: none; }

/* ---------- Sub navigation (Giới thiệu) ---------- */
.subnav { background: var(--sky-100); padding: 12px 0; }
.subnav__list, .pills { display: flex; gap: 8px; flex-wrap: wrap; }
.subnav__list a, .pills a, .pills button { display: inline-block; padding: 8px 16px; border-radius: 999px; background: #fff; color: var(--ink); font-size: 13px; font-weight: 500; border: 1px solid var(--line); cursor: pointer; }
.subnav__list .current-menu-item a, .subnav__list .current_page_item a, .pills [aria-current], .pills [aria-pressed="true"] { background: var(--navy-900); border-color: var(--navy-900); color: #fff; }
.pills { margin-bottom: 32px; }

/* ---------- Hero ---------- */
.hero { background: var(--hero-grad); color: #e6edf9; padding: clamp(36px, 6vw, 72px) 0 clamp(48px, 7vw, 88px); position: relative; overflow: hidden; }
.hero__title { color: #fff; font-size: clamp(36px, 6vw, 64px); font-weight: 600; line-height: 1.08; margin-bottom: .35em; }
.hero__title--md { font-size: clamp(30px, 4.4vw, 48px); }
.hero__lead { font-size: 17px; max-width: 620px; color: #dde6f6; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px 18px; align-items: center; margin-top: 28px; }
.hero__split { display: grid; grid-template-columns: 1.4fr 1fr; gap: 32px 64px; align-items: end; }
.hero__aside { color: #e1e9f8; margin: 0; }
.hero__alias { color: #c9d6ee; margin: 0; }
.hero--short { padding-bottom: clamp(40px, 5vw, 64px); }
.hero--page .hero__title { max-width: 820px; }
.crumbs ol { display: flex; flex-wrap: wrap; gap: 4px 8px; font-size: 12px; color: #d4def2; margin-bottom: 28px; }
.crumbs li + li::before { content: "/"; margin-right: 8px; opacity: .6; }
.crumbs a { color: inherit; }
.crumbs a:hover { color: #fff; text-decoration: underline; }

.glass { background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .22); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-radius: var(--radius-lg); }

.hero--home { padding-top: clamp(32px, 5vw, 56px); background: linear-gradient(180deg, #6ea4ec 0%, #2f66d6 28%, #12358f 58%, #050b1c 82%, var(--navy-950) 100%); }
.hero__grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 28px; align-items: stretch; }
.hero__card { padding: clamp(28px, 4vw, 48px); display: flex; flex-direction: column; justify-content: center; }
.hero__card .hero__title { font-size: clamp(42px, 6vw, 72px); }
.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 48px; padding-top: 24px; border-top: 1px solid rgba(255, 255, 255, .15); }
.pillar p:last-child { font-size: 14px; color: #d6e0f2; margin: 0; }
.quick-mri { margin-top: 32px; display: grid; grid-template-columns: 1.3fr 1fr 1fr auto; gap: 10px; align-items: center; padding: 14px 14px 14px 24px; border-radius: 18px; }
.quick-mri__title { margin: 0; color: #fff; font-weight: 500; font-size: 15px; }
.quick-mri input { height: 44px; border-radius: 10px; border: 1px solid rgba(255, 255, 255, .25); background: rgba(255, 255, 255, .08); color: #fff; padding: 0 14px; width: 100%; }
.quick-mri input::placeholder { color: #b9c6df; }

/* ---------- Media / video ---------- */
.media { width: 100%; border-radius: var(--radius); object-fit: cover; }
.media--ph { display: grid; place-items: start; min-height: 220px; padding: 14px 16px; background: var(--sky-100); color: var(--muted); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; }
.media--ph.media--dark, .section--dark .media--ph { background: #0d1324; color: #7d8aa6; border: 1px solid #1a2440; }
.media--sand.media--ph { background: var(--sand); }
.media--tint.media--ph { background: var(--sky-100); }
.doc__body > .media { min-height: 320px; aspect-ratio: 16 / 9; margin-bottom: 40px; }

.video { position: relative; display: block; width: 100%; aspect-ratio: 16 / 9; border-radius: var(--radius-lg); overflow: hidden; background: #0b0f1a; border: 0; padding: 0; cursor: pointer; color: #fff; }
.video img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .9; transition: opacity .2s, transform .4s; }
.video:hover img { opacity: 1; transform: scale(1.02); }
.video .play { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); }
.video:hover .play { transform: translate(-50%, -50%) scale(1.06); }
.video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.video--ph { cursor: default; }
.video__label { position: absolute; left: 18px; top: 16px; font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: #8d99b3; }
.video__cap { position: absolute; left: 16px; right: 16px; bottom: 16px; display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 12px 16px; border-radius: 12px; background: rgba(15, 20, 35, .7); backdrop-filter: blur(8px); font-size: 13px; text-align: left; }
.video__cap strong { font-weight: 600; }
.video--tall { aspect-ratio: auto; height: 100%; min-height: 360px; }
.video--wide { margin: 40px 0; }
.video--embed { aspect-ratio: auto; background: none; cursor: default; }
.video--embed iframe, .video--embed blockquote { position: static; width: 100%; }
.video--embed:has(iframe[src*="youtube"]) { aspect-ratio: 16 / 9; }
.video--embed:has(iframe[src*="youtube"]) iframe { position: absolute; }

/* ---------- Logos ---------- */
.logos { background: var(--navy-950); border-bottom: 1px solid #141c33; padding: 28px 0; }
.logos__inner { display: flex; align-items: center; gap: 24px 40px; flex-wrap: wrap; }
.logos__inner .eyebrow { margin: 0; max-width: 220px; }
.logos__list { display: flex; flex-wrap: wrap; gap: 12px; }
.logos__list li { display: grid; place-items: center; min-width: 120px; height: 52px; padding: 6px 16px; border: 1px solid #253150; border-radius: 10px; font-size: 11px; color: #8a97b3; }
.logos__list img { max-height: 40px; width: auto; filter: grayscale(1) brightness(1.8); opacity: .85; }
.logos__list--light li { border-color: var(--line); color: var(--muted); }
.logos__list--light img { filter: none; }

/* ---------- Featured technique ---------- */
.featured .btn { margin-top: 32px; }
.featured__slogan { color: #a9b6cf; font-size: 13px; letter-spacing: .1em; text-transform: uppercase; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 40px; }
.stat { border: 1px solid #1f2a47; background: #0a1122; border-radius: var(--radius); padding: 24px; }
.stat__num { font-size: clamp(34px, 4vw, 48px); font-weight: 300; color: #fff; margin: 0; line-height: 1.1; }
.stat__num span { font-size: .8em; }
.stat__label { font-size: 13px; margin: 6px 0 0; color: #a9b6cf; }
.featured__media { margin-top: 28px; }
.featured__media .media { aspect-ratio: 4 / 3; min-height: 0; }

/* ---------- Grids / cards ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.card { border-radius: var(--radius-lg); padding: 28px; background: #fff; border: 1px solid var(--line); }
.card--soft { background: var(--sky-50); border-color: var(--sky-200); }
.card__num { font-size: 12px; font-weight: 600; color: var(--blue-600); margin-bottom: 10px; }
.card__title { font-size: 22px; }
.card__title a { color: inherit; }
.card__text { font-size: 14px; color: var(--muted); }
.linklist { border-top: 1px solid var(--sky-200); margin-top: 20px; }
.linklist a { display: flex; justify-content: space-between; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--sky-200); font-size: 14px; color: var(--ink); }
.linklist a:hover { color: var(--blue-700); }

.symptoms { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.symptom { display: flex; flex-direction: column; justify-content: space-between; gap: 18px; height: 100%; padding: 22px; border-radius: var(--radius); background: #fff; border: 1px solid var(--sky-200); color: var(--ink); transition: box-shadow .2s, transform .2s; }
.symptom:hover { box-shadow: var(--shadow); transform: translateY(-2px); color: var(--ink); }
.symptom__q { font-weight: 500; font-size: 17px; line-height: 1.35; }
.symptom__a { font-size: 13px; color: var(--blue-700); font-weight: 500; }
.section:not(.section--tint) .symptom { background: var(--sky-50); }

/* Stories */
.story { display: flex; flex-direction: column; gap: 16px; padding: 20px; border-radius: var(--radius-lg); border: 1px solid var(--line); background: #fff; }
.story .video, .story .media { aspect-ratio: 4 / 3; border-radius: var(--radius); min-height: 0; }
.story__quote { margin: 0; font-size: 17px; color: var(--ink); font-weight: 400; line-height: 1.45; }
.story__facts { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 16px; margin: 0; font-size: 13px; }
.story__facts dt { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .08em; }
.story__facts dd { margin: 0; color: var(--ink); font-weight: 500; }
.story.is-hidden, .event.is-hidden { display: none; }

.videos { margin-top: 64px; }
.videos__head { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; margin-bottom: 20px; }
.videos__head .h-sub { margin: 0; }
.videos__platforms { display: flex; gap: 8px; }
.videos__platforms a { display: inline-flex; gap: 6px; align-items: center; padding: 6px 14px; border-radius: 999px; border: 1px solid var(--line); font-size: 13px; color: var(--ink); }
.vcard { position: relative; display: block; border-radius: var(--radius); overflow: hidden; color: #fff; aspect-ratio: 9 / 14; background: var(--navy-900); }
.vcard .media { position: absolute; inset: 0; height: 100%; border-radius: 0; }
.vcard .media--ph { background: linear-gradient(160deg, #1b2b55, #070d1f); color: #6f7fa3; }
.vcard .media--ph span { display: none; }
.hero__card .eyebrow--light { color: #e4edfc; }
.vcard__platform { position: absolute; top: 12px; left: 12px; padding: 3px 10px; border-radius: 999px; background: rgba(0, 0, 0, .45); font-size: 11px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; }
.vcard__title { position: absolute; left: 0; right: 0; bottom: 0; padding: 40px 14px 14px; background: linear-gradient(transparent, rgba(0, 0, 0, .75)); font-size: 14px; font-weight: 500; }

.remote__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px 64px; align-items: end; }
.remote__text { font-size: 17px; color: #c9d3e6; }

/* ---------- CTA band ---------- */
.cta-band { background: var(--navy-900); color: #c9d3e6; padding: 48px 0; }
.cta-band__inner { display: flex; justify-content: space-between; align-items: center; gap: 24px 48px; flex-wrap: wrap; }
.cta-band__title { color: #fff; font-size: clamp(22px, 3vw, 30px); font-weight: 500; margin-bottom: .3em; }
.cta-band p { margin: 0; }
.cta-band__actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- Article layout (kỹ thuật / bệnh lý) ---------- */
.doc { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 64px; padding: 64px 0 80px; }
.doc__body { max-width: 760px; }
.doc__body > section { margin-bottom: 56px; scroll-margin-top: 140px; }
.doc__body h2 { font-size: clamp(22px, 2.6vw, 28px); }
.toc { position: sticky; top: 140px; }
.toc ol { border-left: 1px solid var(--line); }
.toc a { display: block; padding: 7px 0 7px 14px; margin-left: -1px; border-left: 2px solid transparent; font-size: 13px; color: var(--muted); }
.toc a:hover { color: var(--ink); }
.toc a.is-active { border-left-color: var(--ink); color: var(--ink); font-weight: 500; }

.chips { display: flex; flex-wrap: wrap; gap: 10px; margin: 12px 0 8px; }
.chips a, .chips .ph { display: inline-block; padding: 8px 16px; border-radius: 999px; border: 1px solid var(--line); font-size: 14px; color: var(--ink); background: #fff; }
.chips a:hover { border-color: var(--blue-600); color: var(--blue-700); }
.bullets { list-style: disc; padding-left: 1.2em; }
.bullets li { margin-bottom: .4em; }
.tiles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.tiles li { padding: 16px 18px; border-radius: 14px; background: var(--sky-100); font-size: 14px; color: var(--ink); }
.fit { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.fit__box { padding: 22px 24px; border: 1px solid var(--line); border-radius: 4px; }
.fit__box--yes { background: var(--sand); border-color: var(--sand); }
.fit__title { font-weight: 600; color: var(--ink); }
.table-wrap { overflow-x: auto; }
.compare { width: 100%; border-collapse: collapse; font-size: 15px; }
.compare th, .compare td { padding: 14px 12px; text-align: center; border-bottom: 1px solid var(--line); }
.compare thead th { border-bottom: 2px solid var(--ink); font-weight: 600; color: var(--ink); font-size: 14px; }
.compare tbody th { text-align: left; font-weight: 500; color: var(--ink); }
.process { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.process li { padding: 22px; border-radius: var(--radius); background: var(--sky-50); border: 1px solid var(--sky-200); font-size: 14px; }
.process__n, .steps-list__n { font-size: 12px; font-weight: 600; color: var(--blue-600); }
.process__t { font-weight: 600; color: var(--ink); font-size: 16px; margin: 6px 0; }
.milestones { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.milestone { padding: 20px; border-radius: var(--radius); border: 1px solid var(--line); }
.milestone__v { font-size: 30px; font-weight: 300; color: var(--ink); margin: 0 0 4px; }
.milestone__v span { font-size: 18px; }
.milestone p:last-child { font-size: 13px; color: var(--muted); margin: 0; }
.steps-list li { display: flex; gap: 14px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.emergency { border: 1.5px solid var(--red); background: var(--red-50); border-radius: var(--radius); padding: 22px 24px; color: var(--ink); }
.emergency__title { display: flex; align-items: center; gap: 10px; font-weight: 600; color: var(--red-700); text-transform: uppercase; letter-spacing: .04em; font-size: 14px; }
.emergency__icon { color: var(--red); flex: none; }
.emergency .bullets { margin: 0; }
.emergency--row { display: flex; gap: 18px; align-items: flex-start; margin-top: 32px; }
.emergency--row .emergency__title { text-transform: none; letter-spacing: 0; font-size: 18px; color: var(--ink); margin-bottom: .3em; }
.emergency--row p { margin: 0; }

.faq details { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; padding: 18px 40px 18px 0; position: relative; font-weight: 500; color: var(--ink); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 6px; top: 50%; transform: translateY(-50%); font-size: 22px; font-weight: 300; color: var(--blue-600); transition: transform .2s; }
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq__a { padding: 0 0 18px; color: var(--muted); }
.byline { display: flex; flex-wrap: wrap; gap: 16px 40px; padding: 20px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin: 48px 0 0; font-size: 13px; }
.byline dt { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .08em; }
.byline dd { margin: 0; color: var(--ink); font-weight: 500; }

/* ---------- Hub ---------- */
.hub__illus { margin-bottom: 32px; aspect-ratio: 21 / 8; }
.tech-list { display: grid; gap: 20px; }
.tech { display: grid; grid-template-columns: 380px 1fr; gap: 32px; align-items: center; padding: 16px; border-radius: var(--radius-lg); border: 1px solid var(--line); }
.tech .media { aspect-ratio: 3 / 2; min-height: 0; }
.tech__title { font-size: 24px; }
.tech__title a { color: inherit; }
.doctor-strip { display: grid; grid-template-columns: 280px 1fr; gap: 48px; align-items: center; }
.doctor-strip .media { aspect-ratio: 4 / 5; min-height: 0; }

/* ---------- Profile ---------- */
.hero--profile { padding: 56px 0 80px; }
.profile { display: grid; grid-template-columns: 1fr 1.1fr; gap: 64px; align-items: center; }
.profile__photo .media { aspect-ratio: 4 / 5; border-radius: 40px 200px 200px 40px; min-height: 0; border: 1px solid rgba(143, 183, 240, .5); }
.profile__photo .media--ph { background: #0b1226; color: #7d8aa6; }
.profile__text p { color: #dbe4f5; }
.journey { display: grid; grid-template-columns: 1fr 1.2fr; gap: 64px; }
.timeline { border-left: 2px solid var(--sky-200); padding-left: 32px; }
.timeline li { position: relative; padding-bottom: 32px; }
.timeline li::before { content: ""; position: absolute; left: -40px; top: 6px; width: 14px; height: 14px; border-radius: 50%; background: var(--blue-600); box-shadow: 0 0 0 4px #fff; }
.timeline__year { font-weight: 600; color: var(--blue-600); margin: 0; }
.timeline__title { font-weight: 600; color: var(--ink); font-size: 18px; margin: 2px 0 6px; }
.big-quote { font-size: clamp(24px, 3.4vw, 36px); font-weight: 300; color: #fff; line-height: 1.35; margin: 0 0 48px; max-width: 900px; }
.principles li { padding: 24px; border: 1px solid #1f2a47; border-radius: var(--radius); }
.principles p { color: #fff; font-size: 19px; margin: 8px 0 0; }

/* ---------- Contact ---------- */
.contact { display: grid; grid-template-columns: 1.55fr 1fr; gap: 24px; margin-top: -48px; position: relative; }
.panel { border-radius: var(--radius-lg); padding: clamp(22px, 3vw, 32px); background: #fff; box-shadow: var(--shadow); }
.panel--dark { background: var(--navy-950); color: #c9d3e6; }
.panel--tint { background: var(--sky-100); box-shadow: none; margin-top: 16px; }
.tabs { display: grid; grid-template-columns: 1fr 1fr; background: var(--sky-100); border-radius: 999px; padding: 5px; margin-bottom: 28px; }
.tabs button { border: 0; background: none; padding: 10px; border-radius: 999px; cursor: pointer; font-weight: 500; font-size: 14px; color: var(--ink); }
.tabs [aria-selected="true"] { background: var(--navy-900); color: #fff; }
.form { display: grid; gap: 16px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form label { display: grid; gap: 6px; font-size: 13px; font-weight: 500; color: var(--ink); }
.form input:not([type=checkbox]):not([type=file]), .form select, .form textarea { width: 100%; min-height: 46px; padding: 10px 14px; border: 1px solid var(--sky-200); border-radius: 10px; background: #fff; font-weight: 300; font-size: 15px; }
.form textarea { resize: vertical; }
.form input:focus, .form select:focus, .form textarea:focus { outline: none; border-color: var(--blue-600); box-shadow: 0 0 0 3px rgba(42, 95, 208, .15); }
.upload__label { font-size: 13px; font-weight: 500; color: var(--ink); margin: 0 0 6px; }
.upload__drop { position: relative; display: grid !important; justify-items: center; gap: 4px; padding: 26px 16px; border: 1.5px dashed var(--blue-300); border-radius: 14px; background: var(--sky-50); text-align: center; color: var(--muted) !important; cursor: pointer; font-weight: 400 !important; }
.upload__drop svg { color: var(--blue-600); }
.upload__drop small { font-size: 12px; }
.upload__drop input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.upload__drop.is-drag { border-color: var(--blue-600); background: var(--sky-100); }
.upload__list { display: grid; gap: 6px; margin-top: 8px; font-size: 13px; }
.upload__list li { display: flex; justify-content: space-between; gap: 8px; padding: 6px 10px; background: var(--sky-50); border-radius: 8px; }
.check { display: flex !important; grid-template-columns: none; align-items: flex-start; gap: 10px !important; font-weight: 400 !important; }
.check input { width: 18px; height: 18px; margin-top: 2px; flex: none; accent-color: var(--blue-700); }
.form-msg { padding: 12px 16px; border-radius: 10px; background: #e8f6ee; color: #11643a; font-size: 14px; margin: 0; }
.form-msg.is-error { background: var(--red-50); color: var(--red-700); }
.quick { margin: 0; }
.quick div { display: flex; justify-content: space-between; gap: 16px; padding: 14px 0; border-bottom: 1px solid #1d2742; font-size: 14px; }
.quick dt { color: #a9b6cf; }
.quick dd { margin: 0; text-align: right; }
.quick a { color: #fff; }
.map { width: 100%; aspect-ratio: 4 / 3; border: 0; border-radius: 14px; min-height: 0; }
.map.media--ph { background: var(--sky-200); }

/* ---------- Filters ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-bottom: 40px; }
.filters select { min-height: 42px; padding: 0 36px 0 14px; border-radius: 999px; border: 1px solid var(--line); background: #fff; font-size: 14px; }
.filters .pills { margin: 0 0 0 auto; }
.video-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 16px; }
.video-grid .story { padding: 0; border: 0; gap: 8px; margin: 0; }
.video-grid .video { aspect-ratio: 4 / 5; border-radius: var(--radius); }
.video-grid__main { grid-row: span 2; }
.video-grid__main .video { aspect-ratio: auto; height: 100%; min-height: 420px; }
.video-grid figcaption { font-size: 13px; color: var(--muted); }
.reviews .media { aspect-ratio: 3 / 4; min-height: 0; }

/* ---------- Posts / press / events ---------- */
.post-card__media { position: relative; display: block; margin-bottom: 14px; }
.post-card__media .media { aspect-ratio: 3 / 2; min-height: 0; }
.post-card__media .play { position: absolute; left: 12px; bottom: 12px; }
.post-card__title { font-size: 18px; font-weight: 500; line-height: 1.35; }
.post-card__title a { color: var(--ink); }
.post-card__meta { font-size: 13px; color: var(--muted); }
.posts { row-gap: 40px; }
.event .media { aspect-ratio: 3 / 2; min-height: 0; margin-bottom: 14px; }
.press-featured { display: grid; grid-template-columns: 1.3fr 1fr; gap: 32px; align-items: center; padding: 16px; border-radius: var(--radius-lg); background: var(--sky-50); margin-bottom: 32px; }
.press-featured .media { aspect-ratio: 16 / 10; min-height: 0; }
.press-featured .h-sub { margin: 12px 0 8px; }
.press-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; }
.press { display: grid; gap: 8px; padding: 22px; border-radius: var(--radius); border: 1px solid var(--line); color: var(--ink); height: 100%; }
.press__logo { max-height: 32px; width: auto; font-size: 12px; }
.press__title { font-weight: 500; }
.press__type, .press__date { font-size: 13px; color: var(--muted); }
.pager .nav-links { display: flex; gap: 6px; justify-content: center; margin-top: 48px; }
.pager .page-numbers { min-width: 40px; height: 40px; display: grid; place-items: center; border-radius: 50%; border: 1px solid var(--line); color: var(--ink); }
.pager .current { background: var(--navy-900); color: #fff; border-color: var(--navy-900); }
.result-list li { padding: 18px 0; border-bottom: 1px solid var(--line); }
.result-list a { font-weight: 500; font-size: 18px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-950); color: #a9b6cf; padding: 64px 0 24px; font-size: 14px; }
.site-footer a { color: #dde5f3; }
.site-footer a:hover { color: #fff; }
.site-footer__grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1.3fr; gap: 32px; }
.site-footer__logo { width: 190px; height: auto; margin: 0 0 16px; }
.site-footer__name { color: #fff; font-weight: 600; font-size: 18px; }
.site-footer__contact li, .site-footer__links li { margin-bottom: 6px; }
.subscribe { display: flex; gap: 8px; flex-wrap: wrap; }
.subscribe input { flex: 1; min-width: 0; min-height: 44px; padding: 0 14px; border-radius: 10px; border: 1px solid #2a3554; background: #0c1428; color: #fff; }
.subscribe .form-msg { flex-basis: 100%; }
.site-footer__bottom { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; border-top: 1px solid #1a2440; margin-top: 48px; padding-top: 20px; font-size: 12px; }
.site-footer__bottom p { margin: 0; }

/* Thanh liên hệ nổi trên điện thoại */
.float-cta { display: none; }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 1080px) {
  .hotline { display: none; }
  .nav { gap: 4px 22px; }
  .doc { grid-template-columns: 1fr; gap: 0; padding-top: 40px; }
  .doc__aside { display: none; }
  .doc__body { max-width: none; }
  .tech { grid-template-columns: 280px 1fr; }
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
  body { padding-bottom: 64px; }
  .topbar { padding: 8px 0; }
  .topbar__actions { display: none; }
  .brand img { height: 48px; }
  .menu-toggle { display: block; }
  .site-nav { display: none; border-top: 1px solid var(--line); max-height: calc(100vh - 70px); overflow-y: auto; }
  .site-nav.is-open { display: block; }
  .nav { flex-direction: column; gap: 0; padding: 8px 0; }
  .nav a { padding: 14px 0; color: #dbe4f5; border-bottom: 1px solid rgba(255, 255, 255, .08) !important; }
  .nav .sub-menu { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; padding: 0 0 0 14px; min-width: 0; }
  .site-nav__mobile { display: grid; gap: 10px; padding: 16px 0 24px; }
  .mobile-hotline { text-align: center; font-weight: 500; padding: 8px; color: #fff; }
  .nav .sub-menu a { color: #c9d6ee; }
  .nav .sub-menu a:hover { background: rgba(255, 255, 255, .06); color: #fff; }
  .site-nav__mobile .socials, .site-nav__mobile .lang { justify-self: center; }

  .hero__grid, .hero__split, .remote__grid, .journey, .profile, .contact, .press-featured, .doctor-strip { grid-template-columns: 1fr; }
  .profile { gap: 32px; }
  .profile__photo { max-width: 420px; }
  .video--tall { min-height: 240px; aspect-ratio: 16 / 10; height: auto; }
  .pillars, .stats { grid-template-columns: 1fr; gap: 14px; }
  .quick-mri { grid-template-columns: 1fr 1fr; padding: 18px; }
  .quick-mri__title, .quick-mri .btn { grid-column: 1 / -1; }
  .grid-3, .symptoms { grid-template-columns: 1fr 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .process, .tiles { grid-template-columns: 1fr; }
  .milestones { grid-template-columns: 1fr 1fr; }
  .tech { grid-template-columns: 1fr; gap: 16px; }
  .video-grid { grid-template-columns: 1fr 1fr; }
  .video-grid__main { grid-column: 1 / -1; grid-row: auto; }
  .video-grid__main .video { min-height: 0; aspect-ratio: 16 / 10; }
  .filters .pills { margin: 0; }
  .contact { margin-top: -32px; }
  .doctor-strip .media { max-width: 280px; }

  .float-cta { display: grid; grid-template-columns: 1fr 1fr 1.3fr; gap: 6px; position: fixed; left: 0; right: 0; bottom: 0; z-index: 60; padding: 8px; background: #fff; box-shadow: 0 -4px 20px rgba(7, 18, 48, .12); }
  .float-cta__btn { display: grid; place-items: center; min-height: 46px; border-radius: 10px; background: var(--sky-100); color: var(--navy-900); font-weight: 600; font-size: 14px; }
  .float-cta__btn--zalo { background: #0068ff; color: #fff; }
  .float-cta__btn--red { background: var(--red); color: #fff; }
}

@media (max-width: 560px) {
  .grid-3, .grid-4, .symptoms, .fit, .form__row, .site-footer__grid, .milestones { grid-template-columns: 1fr; }
  .grid-4.reviews { grid-template-columns: 1fr 1fr; }
  .quick-mri { grid-template-columns: 1fr; }
  .story__facts { grid-template-columns: 1fr 1fr; }
  .logos__list li { min-width: 0; flex: 1 1 40%; }
  .section__head { margin-bottom: 24px; }
  .hero__actions .btn { flex: 1 1 auto; }
  .tabs button { font-size: 13px; padding: 9px 6px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}