/* Metta Technology — site styles
   Layout: white content bands framed by a navy hero and navy footer; the logo's
   cyan→blue crossbar is the single recurring brand mark. */
:root {
  --navy-950: #081425;
  --navy-900: #0B1A30;
  --navy-800: #0F2240;
  --navy-700: #16305A;
  --navy-line: #22395F;
  --ink: #0D2341;
  --body: #3E4C5E;
  --muted: #5B6B80;
  --slate: #94A6BC;
  --on-dark: #C3CEDC;
  --surface: #F3F6FA;
  --surface-cyan: #EAF9FC;
  --line: #DCE3EC;
  --white: #FFFFFF;
  --cyan: #11C9E2;
  --blue: #1BA3D6;
  --link: #0A78A0;
  --danger: #B42318;
  --zalo: #0068FF;
  --messenger: #0084FF;
  --call: #E5484D;

  --font-display: 'Lexend', 'Be Vietnam Pro', system-ui, sans-serif;
  --font-body: 'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', sans-serif;

  --container: 1240px;
  --gutter: clamp(16px, 4vw, 32px);
  --radius: 12px;
  --radius-lg: 18px;
  --header-h: 76px;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--font-body); font-size: 16px; line-height: 1.6; color: var(--ink); background: var(--white); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--link); }
a:hover { color: var(--ink); }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; margin: 0; text-wrap: balance; color: inherit; line-height: 1.25; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 2px; border-radius: 4px; }
[hidden] { display: none !important; }
section[id] { scroll-margin-top: calc(var(--header-h) + 16px); }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.skip-link { position: absolute; left: 12px; top: -60px; z-index: 200; background: var(--ink); color: var(--white); padding: 10px 16px; border-radius: 8px; text-decoration: none; }
.skip-link:focus { top: 12px; color: var(--white); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.bar { display: inline-block; width: 28px; height: 6px; border-radius: 0 3px 3px 0; background: linear-gradient(90deg, var(--cyan), var(--blue)); flex-shrink: 0; }
.eyebrow { display: flex; align-items: center; gap: 12px; font-family: var(--font-display); font-weight: 400; font-size: 13px; letter-spacing: .24em; text-transform: uppercase; color: var(--link); }
.on-dark .eyebrow { color: var(--cyan); }
.section { padding-block: clamp(64px, 8vw, 96px); }
.section--surface { background: var(--surface); }
.section-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: flex-end; gap: 16px 40px; margin-bottom: 40px; }
.section-head > div { min-width: 0; max-width: 720px; }
.section-head--center { justify-content: center; text-align: center; }
.section-head--center .eyebrow { justify-content: center; }
.h2 { margin-top: 14px; font-size: clamp(1.75rem, 3.2vw, 2.5rem); letter-spacing: -.02em; line-height: 1.2; }
.lead { font-size: 1.05rem; line-height: 1.7; color: var(--body); max-width: 56ch; }
.link-more { display: inline-flex; align-items: center; gap: 6px; font-family: var(--font-display); font-weight: 500; text-decoration: none; color: var(--link); min-height: 44px; }
.link-more svg { width: 18px; height: 18px; transition: transform .2s; }
.link-more:hover svg { transform: translateX(3px); }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 12px 22px; border-radius: 10px; font-family: var(--font-display); font-weight: 600; font-size: 15px; line-height: 1.2; text-decoration: none; border: 1.5px solid transparent; cursor: pointer; transition: background-color .15s, color .15s, border-color .15s; text-align: center; }
.btn svg { width: 18px; height: 18px; }
.btn--primary { background: var(--cyan); color: var(--navy-900); }
.btn--primary:hover { background: #4FD8EA; color: var(--navy-900); }
.btn--dark { background: var(--ink); color: var(--white); }
.btn--dark:hover { background: var(--navy-700); color: var(--white); }
.btn--ghost { border-color: #4A6288; color: var(--white); font-weight: 500; }
.btn--ghost:hover { border-color: var(--cyan); color: var(--white); }
.btn--outline { border-color: var(--ink); color: var(--ink); font-weight: 500; background: transparent; }
.btn--outline:hover { background: var(--ink); color: var(--white); }
.btn--sm { min-height: 40px; padding: 8px 16px; font-size: 14px; }

/* Top bar */
.topbar { background: var(--navy-950); color: var(--on-dark); font-size: 13px; }
.topbar__inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 40px; }
.topbar__info { display: flex; flex-wrap: wrap; gap: 6px 24px; }
.topbar__info a, .topbar__info span { display: inline-flex; align-items: center; gap: 8px; color: var(--on-dark); text-decoration: none; }
.topbar__info a:hover { color: var(--white); }
.topbar svg { width: 15px; height: 15px; color: var(--cyan); }
.lang { display: flex; align-items: center; gap: 2px; }
.lang a { color: var(--slate); text-decoration: none; padding: 6px 8px; border-radius: 6px; font-weight: 600; letter-spacing: .04em; }
.lang a[aria-current="true"] { color: var(--white); background: var(--navy-700); }
.lang a:hover { color: var(--white); }
@media (max-width: 720px) { .topbar__info .hide-sm { display: none; } }

/* Header */
.site-header { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 60; background: var(--white); border-bottom: 1px solid var(--line); }
.site-header.is-scrolled { box-shadow: 0 8px 28px -20px rgba(13,35,65,.45); }
.header-inner { height: var(--header-h); display: flex; align-items: center; gap: 28px; }
.brand { flex-shrink: 0; }
.brand img { height: 42px; width: auto; }
.nav { display: flex; align-items: center; gap: 24px; margin-left: auto; }
.menu { display: flex; align-items: center; gap: 4px; list-style: none; }
.menu > li { position: relative; }
.menu__link { display: inline-flex; align-items: center; gap: 4px; padding: 10px 12px; border-radius: 8px; color: var(--ink); text-decoration: none; font-weight: 500; font-size: 15px; background: none; border: 0; font-family: inherit; cursor: pointer; }
.menu__link svg { width: 16px; height: 16px; transition: transform .2s; }
.menu__link:hover, .menu__link[aria-current="page"] { color: var(--link); }
.menu__link[aria-current="page"] { box-shadow: inset 0 -3px 0 -0px var(--cyan); border-radius: 8px 8px 0 0; }
.has-mega .menu__link[aria-expanded="true"] svg { transform: rotate(180deg); }
.mega { position: absolute; top: calc(100% + 14px); left: 50%; transform: translateX(-50%); width: min(820px, calc(100vw - 48px)); background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: 0 30px 60px -30px rgba(13,35,65,.45); padding: 24px; display: grid; grid-template-columns: 1.6fr 1fr; gap: 24px; opacity: 0; visibility: hidden; transition: opacity .15s, visibility .15s; }
.mega::before { content: ""; position: absolute; left: 0; right: 0; top: -16px; height: 16px; }
.has-mega.is-open .mega { opacity: 1; visibility: visible; }
@media (hover: hover) and (min-width: 1081px) { .has-mega:hover .mega, .has-mega:focus-within .mega { opacity: 1; visibility: visible; } }
.mega__title { font-family: var(--font-display); font-size: 12px; letter-spacing: .2em; text-transform: uppercase; color: var(--muted); margin-bottom: 10px; display: flex; align-items: center; gap: 10px; }
.mega__list { list-style: none; display: grid; gap: 2px; }
.mega__list--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.mega__item { display: flex; gap: 12px; align-items: flex-start; padding: 10px; border-radius: 10px; text-decoration: none; color: var(--ink); }
.mega__item:hover { background: var(--surface); color: var(--ink); }
.mega__icon { width: 36px; height: 36px; border-radius: 9px; background: var(--ink); color: var(--cyan); display: grid; place-items: center; flex-shrink: 0; }
.mega__icon svg { width: 18px; height: 18px; }
.mega__col--consumer .mega__icon { background: var(--surface-cyan); color: var(--link); }
.mega__name { display: block; font-weight: 600; font-size: 14px; line-height: 1.35; }
.mega__desc { display: block; font-size: 13px; color: var(--muted); line-height: 1.4; margin-top: 2px; }
.mega__foot { grid-column: 1 / -1; border-top: 1px solid var(--line); padding-top: 14px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; align-items: center; font-size: 14px; color: var(--muted); }
.menu-toggle { display: none; margin-left: auto; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 10px; background: var(--white); color: var(--ink); align-items: center; justify-content: center; cursor: pointer; }
.menu-toggle svg { width: 22px; height: 22px; }

@media (max-width: 1080px) {
  .menu-toggle { display: inline-flex; }
  .nav { position: fixed; z-index: 70; top: calc(var(--header-h) + var(--topbar-h, 0px)); left: 0; right: 0; bottom: 0; margin: 0; flex-direction: column; align-items: stretch; gap: 16px; background: var(--white); padding: 12px var(--gutter) 32px; overflow-y: auto; visibility: hidden; opacity: 0; transition: opacity .2s, visibility .2s; }
  .nav.is-open { visibility: visible; opacity: 1; }
  .menu { flex-direction: column; align-items: stretch; gap: 0; }
  .menu > li { border-bottom: 1px solid var(--line); }
  .menu__link { width: 100%; justify-content: space-between; padding: 14px 0; font-size: 16px; border-radius: 0; }
  .menu__link[aria-current="page"] { box-shadow: none; }
  .mega { position: static; transform: none; width: 100%; opacity: 1; visibility: visible; box-shadow: none; border: 0; padding: 0 0 16px; display: none; grid-template-columns: 1fr; }
  .has-mega.is-open .mega { display: grid; }
  .mega__list--2 { grid-template-columns: 1fr; }
  .mega__foot { display: none; }
  .nav .btn { width: 100%; }
  body.nav-open { overflow: hidden; }
}

/* Hero (home) */
.hero { background: var(--navy-900); color: var(--white); overflow: hidden; position: relative; }
.hero::after { content: ""; position: absolute; right: -120px; top: 40px; width: 520px; height: 120px; border-radius: 0 60px 60px 0; background: linear-gradient(90deg, rgba(17,201,226,.0), rgba(17,201,226,.10)); pointer-events: none; }
.hero__grid { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: 56px; align-items: center; padding-block: clamp(56px, 8vw, 104px); }
.hero h1 { margin-top: 22px; font-size: clamp(2.2rem, 4.8vw, 3.7rem); line-height: 1.12; letter-spacing: -.03em; }
.hero h1 em { font-style: normal; color: var(--cyan); }
.hero__lead { margin-top: 22px; font-size: 1.1rem; line-height: 1.7; color: var(--on-dark); max-width: 56ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.quick { background: var(--navy-800); border: 1px solid var(--navy-line); border-radius: var(--radius-lg); padding: 24px; }
.quick__label { font-family: var(--font-display); font-size: 12px; letter-spacing: .2em; text-transform: uppercase; color: var(--slate); margin: 4px 0 10px; }
.quick__label:not(:first-child) { margin-top: 20px; }
.quick__list { list-style: none; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.quick__list a { display: flex; align-items: center; gap: 10px; min-height: 46px; padding: 8px 12px; border-radius: 10px; background: #13284A; border: 1px solid var(--navy-line); color: #E6EDF6; text-decoration: none; font-size: 14px; line-height: 1.3; }
.quick__list a:hover { border-color: var(--cyan); color: var(--white); }
.quick__list svg { width: 18px; height: 18px; color: var(--cyan); flex-shrink: 0; }
@media (max-width: 980px) { .hero__grid { grid-template-columns: 1fr; } }
@media (max-width: 640px) { .quick { display: none; } }

/* Stats strip */
.stats { background: var(--white); border-bottom: 1px solid var(--line); }
.stats ul { list-style: none; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.stats li { padding: 28px 20px; display: flex; flex-direction: column; gap: 4px; }
.stats li + li { border-left: 1px solid var(--line); }
.stats strong { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.6rem, 3vw, 2.2rem); color: var(--ink); font-variant-numeric: tabular-nums; letter-spacing: -.02em; }
.stats span { color: var(--muted); font-size: 14px; }
@media (max-width: 760px) { .stats ul { grid-template-columns: repeat(2, minmax(0, 1fr)); } .stats li:nth-child(3) { border-left: 0; } .stats li:nth-child(n+3) { border-top: 1px solid var(--line); } }

/* Product cards */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 250px), 1fr)); gap: 20px; }
.cards--3 { grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr)); }
.pcard { display: flex; flex-direction: column; gap: 12px; padding: 26px; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); text-decoration: none; color: var(--ink); transition: border-color .2s, box-shadow .2s, transform .2s; min-width: 0; }
.pcard:hover { color: var(--ink); border-color: #B9C8DA; box-shadow: 0 18px 40px -28px rgba(13,35,65,.5); transform: translateY(-2px); }
.pcard__icon { width: 48px; height: 48px; border-radius: 12px; background: var(--ink); color: var(--cyan); display: grid; place-items: center; }
.pcard__icon svg { width: 24px; height: 24px; }
.pcard--consumer .pcard__icon { background: var(--surface-cyan); color: var(--link); }
.pcard h3 { font-size: 1.12rem; margin-top: 6px; }
.pcard p { font-size: 15px; color: var(--body); line-height: 1.6; }
.pcard__more { margin-top: auto; padding-top: 6px; display: inline-flex; align-items: center; gap: 6px; font-family: var(--font-display); font-weight: 500; font-size: 14px; color: var(--link); }
.pcard__more svg { width: 16px; height: 16px; transition: transform .2s; }
.pcard:hover .pcard__more svg { transform: translateX(3px); }
.pcard__tag { align-self: flex-start; font-size: 12px; padding: 2px 9px; border-radius: 999px; background: var(--surface-cyan); color: var(--link); }

/* Why */
.why { list-style: none; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 28px; }
.why li { display: flex; flex-direction: column; gap: 10px; padding-top: 22px; border-top: 2px solid var(--ink); }
.why svg { width: 26px; height: 26px; color: var(--link); }
.why h3 { font-size: 1.1rem; }
.why p { font-size: 15px; color: var(--body); line-height: 1.65; }
@media (max-width: 980px) { .why { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .why { grid-template-columns: 1fr; } }

/* Logos & testimonials */
.logos { list-style: none; display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 12px; }
.logos li { height: 84px; border: 1px dashed #C4D0DE; border-radius: var(--radius); display: grid; place-items: center; color: var(--muted); font-size: 13px; text-align: center; padding: 8px; background: var(--white); }
@media (max-width: 900px) { .logos { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 480px) { .logos { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.quotes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 40px; }
.quote { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 26px; display: flex; flex-direction: column; gap: 18px; }
.quote blockquote { margin: 0; font-size: 15px; line-height: 1.7; color: var(--body); }
.quote figcaption { display: flex; align-items: center; gap: 12px; margin-top: auto; }
.avatar { width: 44px; height: 44px; border-radius: 999px; background: var(--surface); border: 1px dashed #C4D0DE; flex-shrink: 0; }
.quote strong { display: block; font-size: 15px; }
.quote span { display: block; font-size: 13px; color: var(--muted); }
@media (max-width: 900px) { .quotes { grid-template-columns: 1fr; } }

/* Process */
.steps { list-style: none; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; counter-reset: step; }
.step { position: relative; background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; counter-increment: step; }
.step::before { content: counter(step, decimal-leading-zero); font-family: var(--font-display); font-weight: 600; font-size: 14px; color: var(--link); }
.step:not(:last-child)::after { content: ""; position: absolute; top: 34px; right: -17px; width: 18px; height: 6px; border-radius: 0 3px 3px 0; background: linear-gradient(90deg, var(--cyan), var(--blue)); z-index: 1; }
.step h3 { margin-top: 10px; font-size: 1.1rem; }
.step p { margin-top: 8px; font-size: 15px; line-height: 1.6; color: var(--body); }
@media (max-width: 980px) { .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); } .step::after { display: none; } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }

/* News */
.news { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.post { display: flex; flex-direction: column; gap: 12px; text-decoration: none; color: var(--ink); min-width: 0; }
.post:hover { color: var(--ink); }
.post__thumb { aspect-ratio: 16 / 9; max-width: 100%; border-radius: var(--radius); background: var(--navy-800); position: relative; overflow: hidden; display: grid; place-items: center; color: var(--slate); font-size: 13px; }
.post__thumb::before { content: ""; position: absolute; left: 0; top: 50%; width: 46%; height: 14px; margin-top: -7px; border-radius: 0 7px 7px 0; background: linear-gradient(90deg, var(--cyan), var(--blue)); opacity: .9; }
.post__thumb span { position: relative; margin-top: 48px; }
.post__meta { display: flex; gap: 12px; font-size: 13px; color: var(--muted); }
.post__cat { color: var(--link); font-weight: 500; }
.post h3 { font-size: 1.1rem; line-height: 1.4; }
.post:hover h3 { color: var(--link); }
.post p { font-size: 15px; color: var(--body); }
@media (max-width: 900px) { .news { grid-template-columns: 1fr; } .post { display: grid; grid-template-columns: 160px minmax(0, 1fr); column-gap: 16px; align-items: start; } .post__thumb { grid-row: span 3; } .post p { display: none; } }
@media (max-width: 480px) { .post { grid-template-columns: 1fr; } .post__thumb { grid-row: auto; } }

/* CTA band with quick form */
.cta-band { background: var(--navy-900); color: var(--white); border-radius: var(--radius-lg); padding: clamp(28px, 4vw, 48px); display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 32px; align-items: center; }
.cta-band h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); }
.cta-band p { margin-top: 12px; color: var(--on-dark); }
@media (max-width: 900px) { .cta-band { grid-template-columns: 1fr; } }

/* Forms */
.form { display: flex; flex-direction: column; gap: 16px; min-width: 0; }
.form--card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(20px, 3vw, 32px); }
.form--inline .form__row { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.form__row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 640px) { .form__row, .form--inline .form__row { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field label, .field legend { font-size: 14px; font-weight: 500; color: var(--ink); padding: 0; }
.on-dark .field label, .cta-band .field label { color: var(--on-dark); }
.req { color: var(--danger); }
.cta-band .req { color: var(--cyan); }
.input { font: inherit; font-size: 16px; color: var(--ink); background: var(--white); border: 1px solid #C4D0DE; border-radius: 10px; padding: 11px 14px; min-height: 48px; width: 100%; transition: border-color .15s, box-shadow .15s; }
.input::placeholder { color: #8796A9; }
.input:focus { outline: none; border-color: var(--link); box-shadow: 0 0 0 3px rgba(17,201,226,.25); }
.cta-band .input { background: var(--navy-950); color: var(--white); border-color: #2A4268; }
.cta-band .input:focus { border-color: var(--cyan); }
textarea.input { resize: vertical; min-height: 120px; }
select.input { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' fill='none' stroke='%235B6B80' stroke-width='2' stroke-linecap='round' viewBox='0 0 24 24'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 40px; }
.input[aria-invalid="true"] { border-color: var(--danger); }
.cta-band .input[aria-invalid="true"] { border-color: #FDBA8C; }
.error { font-size: 13px; color: var(--danger); }
.cta-band .error { color: #FDBA8C; }
.consent { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: var(--body); line-height: 1.55; font-weight: 400 !important; }
.cta-band .consent { color: var(--on-dark) !important; }
.cta-band .consent a { color: var(--cyan); }
.consent input { width: 20px; height: 20px; margin: 1px 0 0; accent-color: var(--link); flex-shrink: 0; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form .btn[disabled] { opacity: .7; cursor: progress; }
.form__status { font-size: 15px; line-height: 1.55; padding: 12px 14px; border-radius: 10px; }
.form__status.is-success { background: #E7F8EF; color: #11643A; border: 1px solid #A6E4C3; }
.form__status.is-error { background: #FEF0EE; color: var(--danger); border: 1px solid #F6C5BE; }
.segmented { border: 0; margin: 0; padding: 0; }
.segmented__opts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin-top: 6px; }
.segmented input { position: absolute; opacity: 0; pointer-events: none; }
.segmented .opt { display: flex; align-items: center; justify-content: center; min-height: 46px; border: 1px solid #C4D0DE; border-radius: 10px; cursor: pointer; font-weight: 500; }
.segmented input:checked + .opt { border-color: var(--link); color: var(--link); box-shadow: inset 0 0 0 1px var(--link); background: var(--surface-cyan); }
.segmented input:focus-visible + .opt { outline: 3px solid var(--cyan); outline-offset: 2px; }

/* Page hero (inner pages) */
.page-hero { background: var(--navy-900); color: var(--white); padding-block: clamp(40px, 6vw, 72px); }
.breadcrumb { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; font-size: 14px; color: var(--slate); margin-bottom: 20px; }
.breadcrumb li + li::before { content: "/"; margin-right: 6px; color: #4A6288; }
.breadcrumb a { color: var(--on-dark); text-decoration: none; }
.breadcrumb a:hover { color: var(--white); }
.page-hero h1 { font-size: clamp(2rem, 4.2vw, 3.1rem); letter-spacing: -.025em; line-height: 1.15; margin-top: 16px; max-width: 22ch; }
.page-hero p { margin-top: 18px; color: var(--on-dark); font-size: 1.08rem; line-height: 1.7; max-width: 62ch; }
.page-hero .hero__actions { margin-top: 28px; }
.page-hero--product .container { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr); gap: 48px; align-items: center; }
.product-badge { justify-self: end; width: min(100%, 300px); aspect-ratio: 1; max-width: 100%; border-radius: 28px; background: var(--navy-800); border: 1px solid var(--navy-line); display: grid; place-items: center; position: relative; overflow: hidden; }
.product-badge::before, .product-badge::after { content: ""; position: absolute; left: 0; height: 18px; border-radius: 0 9px 9px 0; }
.product-badge::before { top: 22%; width: 62%; background: #13284A; }
.product-badge::after { bottom: 22%; width: 48%; background: linear-gradient(90deg, var(--cyan), var(--blue)); }
.product-badge svg { width: 38%; height: 38%; color: var(--cyan); position: relative; z-index: 1; stroke-width: 1.5; }
.audience { display: inline-flex; gap: 8px; flex-wrap: wrap; }
.audience span { font-size: 13px; padding: 4px 12px; border-radius: 999px; border: 1px solid var(--navy-line); color: var(--on-dark); }
@media (max-width: 860px) { .page-hero--product .container { grid-template-columns: 1fr; } .product-badge { display: none; } }

/* Product detail */
.features { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); gap: 20px; }
.feature { padding: 26px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--white); display: flex; flex-direction: column; gap: 10px; }
.feature svg { width: 26px; height: 26px; color: var(--link); }
.feature h3 { font-size: 1.1rem; }
.feature p { font-size: 15px; color: var(--body); line-height: 1.65; }
.fit { list-style: none; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.fit li { background: var(--white); border-radius: var(--radius); padding: 22px; display: flex; gap: 14px; align-items: flex-start; border: 1px solid var(--line); }
.fit svg { width: 22px; height: 22px; color: var(--link); flex-shrink: 0; margin-top: 2px; }
.fit strong { display: block; font-family: var(--font-display); font-weight: 600; }
.fit span { display: block; font-size: 15px; color: var(--body); margin-top: 4px; line-height: 1.6; }
@media (max-width: 900px) { .fit { grid-template-columns: 1fr; } }
.related { margin-top: 8px; }
.pains { list-style: none; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.pains li { display: flex; gap: 16px; padding: 24px; border-radius: var(--radius-lg); background: #FFF7F5; border: 1px solid #F6DCD6; }
.pain__mark { width: 40px; height: 40px; border-radius: 10px; background: #FEE4E0; color: var(--danger); display: grid; place-items: center; flex-shrink: 0; }
.pain__mark svg { width: 20px; height: 20px; }
.pains h3 { font-size: 1.08rem; }
.pains p { margin-top: 6px; font-size: 15px; color: var(--body); line-height: 1.65; }
.benefits { list-style: none; display: flex; flex-direction: column; gap: 14px; margin-top: 28px; }
.benefits li { display: flex; gap: 14px; align-items: flex-start; }
.benefits svg { width: 22px; height: 22px; color: var(--white); background: var(--link); border-radius: 999px; padding: 4px; flex-shrink: 0; margin-top: 2px; }
.benefits strong { display: block; font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; }
.benefits span { display: block; margin-top: 2px; color: var(--body); font-size: 15px; }
.fit--stack { grid-template-columns: 1fr; margin-top: 28px; }
@media (max-width: 900px) { .pains { grid-template-columns: 1fr; } }

/* Pricing */
.price-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; }
.price-tabs button { min-height: 42px; padding: 8px 16px; border-radius: 999px; border: 1px solid var(--line); background: var(--white); color: var(--body); font: inherit; font-size: 14px; font-weight: 500; cursor: pointer; }
.price-tabs button[aria-selected="true"] { background: var(--ink); color: var(--white); border-color: var(--ink); }
.plans { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.plan { border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 28px; display: flex; flex-direction: column; gap: 16px; background: var(--white); }
.plan--featured { border-color: var(--ink); box-shadow: 0 0 0 1px var(--ink); position: relative; }
.plan__badge { position: absolute; top: -12px; left: 24px; background: var(--cyan); color: var(--navy-900); font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: 999px; }
.plan h3 { font-size: 1.15rem; }
.plan__price { font-family: var(--font-display); font-weight: 600; font-size: 1.8rem; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.plan__price small { font-family: var(--font-body); font-size: 14px; font-weight: 400; color: var(--muted); letter-spacing: 0; }
.plan__desc { font-size: 15px; color: var(--body); }
.plan ul { list-style: none; display: flex; flex-direction: column; gap: 10px; padding-top: 16px; border-top: 1px solid var(--line); }
.plan li { display: flex; gap: 10px; font-size: 15px; color: var(--body); }
.plan li svg { width: 18px; height: 18px; color: var(--link); flex-shrink: 0; margin-top: 3px; }
.plan .btn { margin-top: auto; }
.price-note { margin-top: 20px; font-size: 14px; color: var(--muted); }
@media (max-width: 900px) { .plans { grid-template-columns: 1fr; } }

/* FAQ */
.faq { display: flex; flex-direction: column; gap: 10px; max-width: 860px; }
.faq details { border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); }
.faq summary { cursor: pointer; list-style: none; padding: 18px 20px; font-weight: 600; display: flex; justify-content: space-between; gap: 16px; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 22px; color: var(--link); line-height: 1; }
.faq details[open] summary::after { content: "–"; }
.faq details p { padding: 0 20px 18px; color: var(--body); line-height: 1.7; }

/* About */
.split { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 56px; align-items: start; }
.prose p { color: var(--body); line-height: 1.8; font-size: 1.04rem; }
.prose p + p { margin-top: 16px; }
.pillars { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.pillar { background: var(--surface); border-radius: var(--radius); padding: 24px; }
.label { font-family: var(--font-display); font-size: 11px; letter-spacing: .24em; text-transform: uppercase; color: var(--muted); }
.pillar p { margin-top: 10px; font-weight: 500; line-height: 1.6; }
.values { list-style: none; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.values li { padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); }
.values strong { display: block; font-family: var(--font-display); font-weight: 600; font-size: 1.1rem; }
.values span { display: block; margin-top: 6px; color: var(--body); font-size: 15px; }
.company { border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 28px; background: var(--white); }
.company img { height: 46px; width: auto; }
.company h3 { font-size: 1.1rem; margin-top: 20px; }
.company dl { margin: 8px 0 0; }
.kv { display: grid; grid-template-columns: minmax(110px, 38%) minmax(0, 1fr); gap: 12px; padding-block: 11px; border-bottom: 1px solid var(--line); font-size: 15px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; font-weight: 500; overflow-wrap: anywhere; }
@media (max-width: 960px) { .split { grid-template-columns: 1fr; } }
@media (max-width: 640px) { .pillars, .values { grid-template-columns: 1fr; } }

/* Jobs */
.jobs { display: flex; flex-direction: column; gap: 12px; }
.job { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 16px; align-items: center; padding: 22px 24px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); }
.job h3 { font-size: 1.1rem; }
.job__meta { display: flex; flex-wrap: wrap; gap: 6px 16px; margin-top: 6px; font-size: 14px; color: var(--muted); }
@media (max-width: 640px) { .job { grid-template-columns: 1fr; } }
.perks { list-style: none; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.perks li { padding: 22px; border-radius: var(--radius); background: var(--white); border: 1px solid var(--line); }
.perks strong { display: block; font-family: var(--font-display); font-weight: 600; }
.perks span { display: block; margin-top: 6px; font-size: 15px; color: var(--body); }
@media (max-width: 900px) { .perks { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .perks { grid-template-columns: 1fr; } }

/* Contact page */
.contact-grid { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 40px; align-items: start; }
.contact-cards { display: flex; flex-direction: column; gap: 12px; }
.ccard { display: flex; gap: 14px; padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); }
.ccard svg { width: 22px; height: 22px; color: var(--link); flex-shrink: 0; margin-top: 2px; }
.ccard strong { display: block; font-size: 14px; color: var(--muted); font-weight: 500; }
.ccard a, .ccard span { display: block; font-weight: 600; color: var(--ink); text-decoration: none; margin-top: 2px; overflow-wrap: anywhere; }
.map-placeholder { margin-top: 12px; aspect-ratio: 16 / 10; max-width: 100%; border-radius: var(--radius); border: 1px dashed #C4D0DE; display: grid; place-items: center; text-align: center; color: var(--muted); font-size: 14px; padding: 16px; background: var(--surface); }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }

/* Legal / article */
.legal { max-width: 780px; }
.legal h2 { font-size: 1.25rem; margin-top: 36px; }
.legal p { margin-top: 12px; color: var(--body); line-height: 1.8; }
.note { padding: 14px 16px; border-radius: 10px; background: var(--surface-cyan); color: var(--ink); font-size: 15px; }
.empty { padding: 40px 24px; border: 1px dashed #C4D0DE; border-radius: var(--radius-lg); text-align: center; color: var(--muted); }
.empty strong { display: block; color: var(--ink); font-family: var(--font-display); font-size: 1.1rem; margin-bottom: 6px; }

/* Footer */
.footer { background: var(--navy-950); color: var(--slate); font-size: 14px; }
.footer__grid { display: grid; grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr)); gap: 40px; padding-block: 56px 40px; }
.footer__brand img { height: 46px; width: auto; }
.footer__legal-info { margin-top: 18px; line-height: 1.75; }
.footer__legal-info strong { color: #E6EDF6; font-size: 15px; }
.footer h4 { margin: 0 0 14px; font-size: 14px; color: #E6EDF6; text-transform: uppercase; letter-spacing: .08em; }
.footer ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer a { color: var(--slate); text-decoration: none; }
.footer a:hover { color: var(--white); }
.footer__social { display: flex; gap: 10px; margin-top: 18px; }
.footer__social a { width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--navy-line); display: grid; place-items: center; }
.footer__social svg { width: 18px; height: 18px; }
.bct { display: inline-flex; align-items: center; justify-content: center; margin-top: 18px; width: 150px; height: 56px; border: 1px dashed #4A6288; border-radius: 8px; font-size: 12px; text-align: center; line-height: 1.3; color: var(--slate); }
.footer__bottom { border-top: 1px solid #1C3256; padding-block: 18px 24px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }
.footer__links { display: flex; flex-wrap: wrap; gap: 20px; }
@media (max-width: 960px) { .footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } .footer__brand { grid-column: 1 / -1; } }
@media (max-width: 480px) { .footer__grid { grid-template-columns: 1fr; } }

/* Floating contact */
.float { position: fixed; z-index: 80; right: 16px; bottom: calc(20px + env(safe-area-inset-bottom, 0px)); display: flex; flex-direction: column; gap: 10px; }
.float a { width: 52px; height: 52px; border-radius: 999px; display: grid; place-items: center; color: var(--white); box-shadow: 0 10px 24px -8px rgba(8,20,37,.5); text-decoration: none; position: relative; }
.float a:hover { color: var(--white); transform: scale(1.05); }
.float svg { width: 24px; height: 24px; }
.float .f-zalo { background: var(--zalo); font-family: var(--font-display); font-weight: 700; font-size: 13px; letter-spacing: -.01em; }
.float .f-mess { background: var(--messenger); }
.float .f-call { background: var(--call); }
.float .tip { position: absolute; right: 62px; top: 50%; transform: translateY(-50%); white-space: nowrap; background: var(--ink); color: var(--white); font-size: 13px; padding: 6px 10px; border-radius: 6px; opacity: 0; pointer-events: none; transition: opacity .15s; }
.float a:hover .tip, .float a:focus-visible .tip { opacity: 1; }
@media (max-width: 640px) { .float { right: 12px; gap: 8px; } .float a { width: 46px; height: 46px; } .float svg { width: 21px; height: 21px; } .float .tip { display: none; } }
@media (prefers-reduced-motion: no-preference) {
  .f-call::before { content: ""; position: absolute; inset: 0; border-radius: 999px; border: 2px solid var(--call); animation: ring 1.8s ease-out infinite; }
  @keyframes ring { from { transform: scale(1); opacity: .7; } to { transform: scale(1.5); opacity: 0; } }
}
.back-top { width: 44px !important; height: 44px !important; margin-left: auto; background: var(--white) !important; color: var(--ink) !important; border: 1px solid var(--line); opacity: 0; visibility: hidden; transition: opacity .2s, visibility .2s; }
.back-top.is-visible { opacity: 1; visibility: visible; }
.back-top svg { width: 20px; height: 20px; }

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