/* =========================================================
   Phạm Gia Global – giao diện website công ty
   ========================================================= */
/* Font dự phòng có số đo chỉnh theo Be Vietnam Pro: khi font web tải xong, chữ không bị xô lệch bố cục (CLS) */
@font-face { font-family: "Be Vietnam Pro Fallback"; font-weight: 100 500; src: local("Arial"), local("ArialMT"), local("Arimo"), local("Liberation Sans"); size-adjust: 107.63%; ascent-override: 92.91%; descent-override: 24.62%; line-gap-override: 0%; }
@font-face { font-family: "Be Vietnam Pro Fallback"; font-weight: 600 900; src: local("Arial Bold"), local("Arial-BoldMT"), local("Arimo Bold"), local("Liberation Sans Bold"); size-adjust: 106.05%; ascent-override: 94.29%; descent-override: 24.99%; line-gap-override: 0%; }
:root {
  --navy-950: #041a33;
  --navy-900: #062447;
  --navy: #082c54;
  --navy-700: #0d3f73;
  --blue: #0a6fb8;
  --blue-500: #1488d6;
  --cyan: #22b0ec;
  --green: #4fb12a;
  --green-600: #3f9620;
  --green-700: #357f1b; /* chữ nhỏ trên nền trắng: đủ tương phản 4.5:1 */
  --ink: #0f1f33;
  --text: #33445a;
  --muted: #5f6e81;
  --line: #e2e9f1;
  --line-strong: #cfdae6;
  --bg: #ffffff;
  --bg-soft: #f4f7fb;
  --white: #ffffff;
  --radius: 14px;
  --radius-lg: 22px;
  /* bóng nhiều tầng: gần sắc, xa mềm, cho cảm giác vật thể nổi thật */
  --shadow-sm: 0 1px 2px rgba(8, 44, 84, .06), 0 4px 10px rgba(8, 44, 84, .05), 0 12px 28px rgba(8, 44, 84, .04);
  --shadow: 0 2px 4px rgba(8, 44, 84, .05), 0 12px 24px rgba(8, 44, 84, .08), 0 32px 64px rgba(8, 44, 84, .10);
  --shadow-lg: 0 4px 10px rgba(4, 26, 51, .10), 0 24px 48px rgba(4, 26, 51, .18), 0 60px 120px rgba(4, 26, 51, .24);
  --lift: inset 0 1px 0 rgba(255, 255, 255, .9);
  --grad-brand: linear-gradient(135deg, var(--blue) 0%, var(--cyan) 100%);
  --grad-accent: linear-gradient(135deg, var(--green) 0%, #8bd13f 100%);
  --header-h: 76px;
  --font: "Be Vietnam Pro", "Be Vietnam Pro Fallback", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.65; font-size: 16px; overflow-x: hidden; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
h1, h2, h3 { color: var(--ink); line-height: 1.2; margin: 0 0 .5em; letter-spacing: -.015em; }
h2 { font-size: clamp(1.7rem, 1.2rem + 1.8vw, 2.5rem); font-weight: 800; }
h3 { font-size: 1.12rem; font-weight: 700; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }
.container { width: min(1200px, 100% - 40px); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: 12px; top: -60px; z-index: 200; background: var(--navy); color: #fff; padding: 10px 16px; border-radius: 8px; }
.skip-link:focus { top: 12px; }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 2px; }
.ic { width: 1.05em; height: 1.05em; flex: none; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; vertical-align: -.15em; }
.ic-lg { width: 30px; height: 30px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .55em; border: 0; border-radius: 999px; padding: .78em 1.4em; font-weight: 700; font-size: .95rem; line-height: 1.2; transition: transform .2s, box-shadow .2s, background .2s, color .2s; white-space: nowrap; }
.btn:hover { transform: translateY(-2px); }
.btn-lg { padding: 1em 1.7em; font-size: 1rem; }
.btn-primary { background: var(--grad-accent); color: #fff; box-shadow: 0 10px 24px rgba(79, 177, 42, .32); }
.btn-primary:hover { box-shadow: 0 14px 30px rgba(79, 177, 42, .42); }
.btn-ghost { background: rgba(255, 255, 255, .08); color: #fff; border: 1.5px solid rgba(255, 255, 255, .35); }
.btn-ghost:hover { background: rgba(255, 255, 255, .16); }
.btn-outline { background: #fff; color: var(--navy); border: 1.5px solid var(--line-strong); }
.btn-outline:hover { border-color: var(--blue); color: var(--blue); }
.btn-light { background: #fff; color: var(--navy); box-shadow: var(--shadow); }
.full { width: 100%; }
.link-btn { display: inline-flex; align-items: center; gap: .4em; background: none; border: 0; padding: 0; color: var(--blue); font-weight: 700; }
.link-btn:hover { gap: .7em; }

.eyebrow { display: inline-flex; align-items: center; gap: .6em; font-size: .78rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--blue); margin-bottom: 14px; }
.eyebrow::before { content: ""; width: 26px; height: 3px; border-radius: 3px; background: var(--grad-accent); }
.eyebrow-light { color: #8fd6ff; }
.grad-text { background: linear-gradient(90deg, #5cc8ff, #8bd13f); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---------- Topbar & header ---------- */
.topbar { background: var(--navy-950); color: #b9cbe0; font-size: .8rem; }
.topbar-inner { display: flex; justify-content: space-between; align-items: center; gap: 20px; min-height: 38px; }
.topbar-name { letter-spacing: .06em; font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.topbar-links { display: flex; gap: 22px; flex: none; }
.topbar-links a { display: inline-flex; align-items: center; gap: 6px; }
.topbar-links a:hover { color: #fff; }

.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255, 255, 255, .92); backdrop-filter: saturate(160%) blur(14px); -webkit-backdrop-filter: saturate(160%) blur(14px); border-bottom: 1px solid transparent; transition: box-shadow .25s, border-color .25s; }
.site-header.scrolled { box-shadow: 0 6px 24px rgba(8, 44, 84, .08); border-color: var(--line); }
.nav { display: flex; align-items: center; gap: 28px; height: var(--header-h); }
.brand { display: flex; align-items: center; gap: 10px; flex: none; }
.brand img { width: 92px; height: auto; }
.brand-text { display: flex; flex-direction: column; line-height: 1; }
.brand-text strong { font-size: 1.15rem; font-weight: 800; color: var(--navy); letter-spacing: .02em; }
.brand-text small { font-size: .7rem; font-weight: 700; letter-spacing: .42em; color: var(--blue); margin-top: 4px; }
.nav-menu { display: flex; align-items: center; gap: 2px; margin-left: auto; }
.nav-menu > li { position: relative; }
.nav-link { display: inline-flex; align-items: center; gap: 4px; white-space: nowrap; padding: 10px 11px; border-radius: 8px; font-weight: 600; font-size: .93rem; color: var(--ink); position: relative; transition: color .2s; }
.nav-link::after { content: ""; position: absolute; left: 11px; right: 11px; bottom: 3px; height: 2px; background: var(--grad-accent); border-radius: 2px; transform: scaleX(0); transition: transform .25s; }
.nav-link:hover, .has-dd:hover > .nav-link, .nav-link[aria-current="page"] { color: var(--blue); }
.nav-link[aria-current="page"]::after { transform: scaleX(1); }
.nav-link .chev { width: 14px; height: 14px; stroke-width: 2.4; transition: transform .25s; }
.has-dd:hover > .nav-link .chev, .has-dd:focus-within > .nav-link .chev { transform: rotate(180deg); }
.dd-toggle { display: none; }
.nav-cta-mobile { display: none; }

/* Dropdown */
.dropdown { position: absolute; top: 100%; left: 50%; min-width: 290px; padding: 10px; background: #fff; border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow-lg); opacity: 0; visibility: hidden; transform: translate(-50%, 10px); transition: opacity .2s, transform .2s, visibility .2s; z-index: 60; }
.dropdown::before { content: ""; position: absolute; left: 0; right: 0; top: -14px; height: 14px; }
.has-dd:hover > .dropdown, .has-dd:focus-within > .dropdown { opacity: 1; visibility: visible; transform: translate(-50%, 4px); }
.dropdown a { display: block; padding: 10px 14px; border-radius: 10px; transition: background .2s; }
.dropdown a:hover { background: var(--bg-soft); }
.dropdown a b { display: block; color: var(--ink); font-size: .92rem; font-weight: 700; }
.dropdown a span { display: block; color: var(--muted); font-size: .8rem; line-height: 1.4; }
.dropdown a:hover b { color: var(--blue); }
.dropdown-mega { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; width: 600px; }
.dropdown .dd-icon { display: flex; gap: 12px; align-items: flex-start; }
.dd-icon .ic-lg { flex: none; width: 40px; height: 40px; padding: 8px; border-radius: 10px; background: #eef7fd; color: var(--blue); stroke-width: 1.8; }
.dd-icon:hover .ic-lg { background: var(--grad-brand); color: #fff; }
.menu-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--line); border-radius: 10px; background: #fff; flex-direction: column; justify-content: center; align-items: center; gap: 5px; }
.menu-toggle span { width: 20px; height: 2px; background: var(--navy); border-radius: 2px; transition: transform .25s, opacity .25s; }
.nav.open .menu-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.open .menu-toggle span:nth-child(2) { opacity: 0; }
.nav.open .menu-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; color: #d7e4f3; background: radial-gradient(1000px 520px at 85% 10%, rgba(34, 176, 236, .28), transparent 60%), radial-gradient(700px 500px at 0% 100%, rgba(79, 177, 42, .16), transparent 60%), linear-gradient(160deg, var(--navy-950) 0%, var(--navy) 55%, var(--navy-700) 100%); padding: 84px 0 140px; }
.hero-pattern { position: absolute; inset: 0; background-image: linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px); background-size: 46px 46px; mask-image: radial-gradient(ellipse at 70% 30%, #000 20%, transparent 75%); -webkit-mask-image: radial-gradient(ellipse at 70% 30%, #000 20%, transparent 75%); pointer-events: none; }
.hero-grid { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.hero h1 { color: #fff; font-size: clamp(2.3rem, 1.4rem + 3.4vw, 3.9rem); font-weight: 800; line-height: 1.1; letter-spacing: -.025em; margin-bottom: 22px; }
.hero-lead { font-size: 1.1rem; max-width: 560px; color: #c5d6ea; margin-bottom: 30px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 30px; }
.trust-row { display: flex; flex-wrap: wrap; gap: 10px 22px; font-size: .9rem; font-weight: 600; color: #e6eef8; }
.trust-row li { display: inline-flex; align-items: center; gap: 8px; }
.trust-row .ic { color: #8bd13f; stroke-width: 3; }

.hero-visual { position: relative; }
.hero-image { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); border: 1px solid rgba(255, 255, 255, .15); aspect-ratio: 16 / 9; }
.hero-image img { width: 100%; height: 100%; object-fit: cover; }
.search-card { position: relative; margin: -70px 0 0 auto; width: min(100%, 470px); background: #fff; color: var(--text); border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow-lg); }
.search-card-title { display: flex; align-items: center; gap: 10px; font-weight: 800; color: var(--navy); font-size: 1.05rem; }
.search-card-title .ic { color: var(--blue); }
.search-card p { font-size: .88rem; color: var(--muted); margin: 6px 0 14px; }
.searchbox { display: flex; align-items: center; background: var(--bg-soft); border: 1.5px solid var(--line); border-radius: 12px; padding: 5px; transition: border-color .2s, box-shadow .2s; }
.searchbox:focus-within { border-color: var(--blue-500); box-shadow: 0 0 0 4px rgba(20, 136, 214, .12); background: #fff; }
.searchbox input { flex: 1; min-width: 0; border: 0; background: transparent; padding: 10px 12px; font: inherit; font-size: .95rem; color: var(--ink); outline: none; }
.searchbox button { border: 0; border-radius: 9px; background: var(--navy); color: #fff; font-weight: 700; padding: 10px 18px; transition: background .2s; }
.searchbox button:hover { background: var(--blue); }
.quick-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 16px; }
.quick-tags a { border: 1px solid var(--line); background: #fff; color: var(--navy-700); border-radius: 999px; padding: 6px 13px; font-size: .82rem; font-weight: 600; transition: all .2s; }
.quick-tags a:hover { border-color: var(--blue); color: var(--blue); background: #eef7fd; }
.search-card-foot { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 12px; text-align: left; border: 0; border-radius: 12px; background: linear-gradient(90deg, #eef7fd, #f1f9ec); color: var(--navy); padding: 12px 16px; font-size: .88rem; }
.search-card-foot .ic { color: var(--green-600); transition: transform .2s; }
.search-card-foot:hover .ic { transform: translateX(4px); }

/* ---------- Stats ---------- */
.stats-wrap { position: relative; z-index: 2; margin-top: -64px; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow); border: 1px solid var(--line); overflow: hidden; }
.stats div { padding: 26px 24px; text-align: center; border-right: 1px solid var(--line); }
.stats div:last-child { border-right: 0; }
.stats strong { display: block; font-size: clamp(1.6rem, 1.2rem + 1.4vw, 2.3rem); font-weight: 800; color: var(--navy); line-height: 1.1; background: var(--grad-brand); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stats span { font-size: .88rem; color: var(--muted); font-weight: 500; }

/* ---------- Sections ---------- */
.section { padding: 100px 0; }
.section-soft { background: var(--bg-soft); }
.section-dark { background: radial-gradient(800px 400px at 100% 0%, rgba(34, 176, 236, .18), transparent 60%), linear-gradient(170deg, var(--navy-950), var(--navy)); color: #c5d6ea; }
.section-head { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; align-items: end; margin-bottom: 48px; }
.section-head h2 { margin: 0; }
.section-head p { margin: 0; color: var(--muted); font-size: 1.02rem; }
.section-head.light h2 { color: #fff; }
.section-head.light p { color: #a9bfd8; }
.center { text-align: center; margin-top: 40px; }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 64px; align-items: center; }
.about-media { position: relative; padding: 0 30px 30px 0; }
.about-media::before { content: ""; position: absolute; inset: 40px 0 0 40px; border-radius: var(--radius-lg); background: var(--grad-brand); opacity: .12; }
.about-cover { position: relative; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.about-badge { position: absolute; right: 0; bottom: 0; background: var(--navy); color: #fff; padding: 18px 22px; border-radius: var(--radius); box-shadow: var(--shadow); border-left: 4px solid var(--green); }
.about-badge strong { display: block; font-size: 1.05rem; }
.about-badge span { font-size: .85rem; color: #9fc4e6; font-style: italic; }
.about-copy > p { font-size: 1.02rem; }
.about-copy strong { color: var(--ink); }
.vm-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 26px 0 20px; }
.vm-card { background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.vm-card h3 { color: var(--blue); margin-bottom: 6px; font-size: 1rem; text-transform: uppercase; letter-spacing: .06em; }
.vm-card p { margin: 0; font-size: .93rem; }
.values { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 26px; }
.values li { background: #eef7fd; color: var(--navy-700); font-weight: 600; font-size: .84rem; padding: 6px 13px; border-radius: 999px; }
.values li:nth-child(even) { background: #f0f8ea; color: #2f6f17; }
.facts { display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin: 0; border-top: 1px solid var(--line); }
.facts div { padding: 14px 0; border-bottom: 1px solid var(--line); }
.facts div:nth-child(odd) { padding-right: 18px; }
.facts dt { font-size: .76rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); font-weight: 600; }
.facts dd { margin: 2px 0 0; color: var(--ink); font-weight: 600; font-size: .93rem; }
.pillars { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 80px; }
.pillar { padding: 28px 24px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); transition: transform .25s, box-shadow .25s, border-color .25s; }
.pillar:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: transparent; }
.pillar .ic-lg { color: var(--blue); margin-bottom: 14px; }
.pillar h3 { margin-bottom: 6px; }
.pillar p { margin: 0; font-size: .92rem; color: var(--muted); }

/* ---------- Solutions ---------- */
.solution-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.solution-card { position: relative; background: #fff; border-radius: var(--radius-lg); padding: 30px 26px; border: 1px solid var(--line); box-shadow: var(--shadow-sm); transition: transform .25s, box-shadow .25s; overflow: hidden; }
.solution-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.solution-card .num { position: absolute; right: 20px; top: 14px; font-size: 3rem; font-weight: 800; color: var(--bg-soft); line-height: 1; }
.solution-card .ic-lg { width: 48px; height: 48px; padding: 10px; border-radius: 12px; background: #eef7fd; color: var(--blue); margin-bottom: 18px; position: relative; }
.solution-card p { font-size: .93rem; color: var(--muted); }
.solution-card.featured { background: linear-gradient(160deg, var(--navy), var(--navy-700)); border-color: transparent; color: #c5d6ea; }
.solution-card.featured h3 { color: #fff; }
.solution-card.featured p { color: #b6cbe2; }
.solution-card.featured .num { color: rgba(255, 255, 255, .07); }
.solution-card.featured .ic-lg { background: rgba(255, 255, 255, .1); color: #8fd6ff; }
.solution-card.featured .link-btn { color: #9be05a; }

/* ---------- Industries ---------- */
.industry-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.industry { position: relative; display: flex; flex-direction: column; padding: 26px 24px; border-radius: var(--radius-lg); background: rgba(255, 255, 255, .04); border: 1px solid rgba(255, 255, 255, .1); transition: background .25s, transform .25s, border-color .25s; }
.industry:hover { background: rgba(255, 255, 255, .08); border-color: rgba(143, 214, 255, .4); transform: translateY(-4px); }
.industry-icon { width: 54px; height: 54px; border-radius: 14px; display: grid; place-items: center; background: rgba(34, 176, 236, .14); color: #8fd6ff; margin-bottom: 18px; }
.industry b { font-size: .75rem; letter-spacing: .14em; color: #7fa3c7; font-weight: 700; margin-bottom: 6px; text-transform: uppercase; }
.industry h3 { color: #fff; font-size: 1.08rem; }
.industry p { font-size: .9rem; color: #a9bfd8; margin: 0; }
.industry .more { display: inline-flex; align-items: center; gap: 6px; margin-top: auto; padding-top: 18px; font-weight: 700; font-size: .9rem; color: #9be05a; }
.industry-feature { grid-column: span 2; grid-row: span 2; border-color: rgba(143, 214, 255, .3); justify-content: flex-end; min-height: 340px; }
.industry-feature::before { content: ""; position: absolute; inset: 0; border-radius: inherit; background: linear-gradient(0deg, rgba(4, 26, 51, .92) 25%, rgba(4, 26, 51, .35)); }
.industry-feature > * { position: relative; }
.industry-feature h3 { font-size: 1.6rem; }
.industry-feature p { color: #d0deec; font-size: .98rem; max-width: 520px; }
.industry-feature b { color: #9be05a; }
.industry-feature .industry-icon { background: var(--grad-accent); color: #fff; }

/* ---------- Products ---------- */
.product-toolbar { display: flex; gap: 14px; align-items: center; margin-bottom: 16px; }
.searchbox-lg { flex: 1; padding: 6px 6px 6px 14px; background: #fff; }
.searchbox-lg .search-ic { color: var(--muted); }
.searchbox-lg button { padding: 12px 24px; }
.filter-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 30px; }
.filter-chips button { border: 1px solid var(--line); background: #fff; color: var(--text); border-radius: 999px; padding: 7px 16px; font-size: .86rem; font-weight: 600; transition: all .2s; }
.filter-chips button:hover { border-color: var(--blue); color: var(--blue); }
.filter-chips button.active { background: var(--navy); border-color: var(--navy); color: #fff; }
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.product { display: flex; flex-direction: column; background: #fff; border-radius: var(--radius-lg); border: 1px solid var(--line); overflow: hidden; transition: transform .25s, box-shadow .25s; }
.product:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.product-top { position: relative; height: 128px; display: grid; place-items: center; background: linear-gradient(140deg, #eef5fc, #e3eef9); color: var(--navy-700); }
.product-top .ic-lg { width: 54px; height: 54px; stroke-width: 1.4; }
.product-code { position: absolute; left: 14px; top: 12px; font-size: .72rem; font-weight: 700; letter-spacing: .06em; background: #fff; color: var(--navy); border-radius: 6px; padding: 3px 8px; box-shadow: var(--shadow-sm); }
.product-body { display: flex; flex-direction: column; flex: 1; padding: 18px 20px 20px; }
.product-tag { font-size: .72rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--green-700); margin-bottom: 6px; }
.product h3 { font-size: 1rem; margin-bottom: 8px; }
.product p { font-size: .86rem; color: var(--muted); margin-bottom: 14px; }
.product-foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 10px; padding-top: 14px; border-top: 1px dashed var(--line); }
.price { font-size: .82rem; font-weight: 700; color: var(--navy); }
.product-foot button { border: 0; background: #eef7fd; color: var(--blue); border-radius: 999px; padding: 7px 13px; font-size: .8rem; font-weight: 700; transition: background .2s, color .2s; }
.product-foot button:hover { background: var(--blue); color: #fff; }
.empty { grid-column: 1 / -1; padding: 44px 24px; text-align: center; border: 1.5px dashed var(--line-strong); border-radius: var(--radius-lg); color: var(--muted); }
.empty .btn { margin-top: 14px; }

/* ---------- BOQ band ---------- */
.boq-band { background: linear-gradient(110deg, var(--blue) 0%, var(--navy-700) 55%, var(--navy) 100%); color: #d4e6f7; padding: 64px 0; position: relative; overflow: hidden; }
.boq-band::after { content: ""; position: absolute; right: -120px; top: -120px; width: 380px; height: 380px; border-radius: 50%; border: 60px solid rgba(255, 255, 255, .05); }
.boq-grid { position: relative; z-index: 1; display: grid; grid-template-columns: auto 1fr auto; gap: 34px; align-items: center; }
.boq-icon { width: 84px; height: 84px; border-radius: 22px; display: grid; place-items: center; background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .2); }
.boq-icon svg { width: 40px; height: 40px; fill: none; stroke: #fff; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.boq-band h2 { color: #fff; margin-bottom: 8px; font-size: clamp(1.5rem, 1.1rem + 1.4vw, 2.1rem); }
.boq-band p { margin: 0; max-width: 640px; }

/* ---------- Projects ---------- */
.project-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: start; }
.project-image { position: sticky; top: calc(var(--header-h) + 24px); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); }
.project-image img { width: 100%; aspect-ratio: 4 / 3.4; object-fit: cover; }
.project-image-note { position: absolute; left: 18px; right: 18px; bottom: 18px; background: rgba(4, 26, 51, .86); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); color: #fff; border-radius: var(--radius); padding: 16px 20px; }
.project-image-note strong { display: block; }
.project-image-note span { font-size: .85rem; color: #a9c7e6; }
.project-list { display: grid; gap: 16px; }
.project { display: grid; grid-template-columns: 56px 1fr; gap: 18px; padding: 24px; border-radius: var(--radius-lg); border: 1px solid var(--line); background: #fff; transition: box-shadow .25s, border-color .25s, transform .25s; }
.project:hover { box-shadow: var(--shadow); border-color: transparent; transform: translateX(4px); }
.project-num { width: 56px; height: 56px; border-radius: 14px; display: grid; place-items: center; background: var(--grad-brand); color: #fff; font-weight: 800; font-size: 1.1rem; }
.project-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 8px; }
.project-meta span { font-size: .74rem; font-weight: 600; color: var(--muted); background: var(--bg-soft); border-radius: 6px; padding: 3px 9px; }
.project h3 { font-size: 1.04rem; margin-bottom: 6px; }
.project p { margin: 0; font-size: .9rem; color: var(--muted); }

/* ---------- Process ---------- */
.process { display: grid; grid-template-columns: repeat(7, 1fr); gap: 14px; position: relative; margin-bottom: 50px; }
.process::before { content: ""; position: absolute; left: 4%; right: 4%; top: 27px; height: 2px; background: repeating-linear-gradient(90deg, var(--line-strong) 0 8px, transparent 8px 14px); }
.process li { position: relative; text-align: center; }
.process b { display: grid; place-items: center; width: 56px; height: 56px; margin: 0 auto 14px; border-radius: 50%; background: #fff; border: 2px solid var(--blue-500); color: var(--blue); font-weight: 800; box-shadow: 0 0 0 6px var(--bg-soft); transition: background .25s, color .25s; }
.process li:hover b { background: var(--grad-brand); color: #fff; border-color: transparent; }
.process h3 { font-size: .98rem; margin-bottom: 4px; }
.process p { font-size: .82rem; color: var(--muted); margin: 0; }
.org-img { display: block; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); transition: box-shadow .25s; }
.org-img:hover { box-shadow: var(--shadow); }

/* ---------- Commitments ---------- */
.commit-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.commit-grid div { display: flex; gap: 16px; align-items: flex-start; padding: 22px; border-radius: var(--radius); border: 1px solid var(--line); background: #fff; }
.commit-grid b { flex: none; font-size: 1.5rem; font-weight: 800; line-height: 1; background: var(--grad-accent); -webkit-background-clip: text; background-clip: text; color: transparent; }
.commit-grid p { margin: 0; font-weight: 500; color: var(--ink); font-size: .95rem; }

/* ---------- CTA ---------- */
.cta-section { padding: 0 0 100px; }
.cta-box { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 54px; border-radius: 28px; color: #c5d6ea; background: radial-gradient(600px 300px at 100% 0%, rgba(79, 177, 42, .3), transparent 60%), radial-gradient(500px 300px at 0% 100%, rgba(34, 176, 236, .3), transparent 60%), var(--navy); box-shadow: var(--shadow-lg); }
.cta-box h2 { color: #fff; margin-bottom: 8px; }
.cta-box p { margin: 0; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 12px; flex: none; }

/* ---------- Contact ---------- */
#contact { background: var(--bg-soft); }
.contact-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 50px; align-items: start; }
.contact-info h2 { font-size: clamp(1.4rem, 1.1rem + 1vw, 1.9rem); }
.contact-list { display: grid; gap: 16px; margin: 26px 0; }
.contact-list li { display: flex; gap: 14px; align-items: flex-start; }
.ci { flex: none; width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: #fff; color: var(--blue); border: 1px solid var(--line); }
.contact-list small { display: block; font-size: .74rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); font-weight: 600; }
.contact-list div { color: var(--ink); font-weight: 600; }
.contact-list a:hover { color: var(--blue); }
.map { border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line); height: 260px; background: #e8eef5; }
.map iframe { width: 100%; height: 100%; border: 0; display: block; }
.contact-card { background: #fff; border-radius: var(--radius-lg); padding: 34px; box-shadow: var(--shadow); border-top: 4px solid var(--green); }
.contact-card h3 { font-size: 1.35rem; margin-bottom: 4px; }
.contact-card > p { color: var(--muted); font-size: .9rem; }

/* ---------- Forms ---------- */
.lead-form { display: grid; gap: 14px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { display: grid; gap: 5px; }
.field label { font-size: .82rem; font-weight: 600; color: var(--ink); }
.field input, .field textarea { width: 100%; border: 1.5px solid var(--line); border-radius: 10px; background: #fbfcfe; padding: 11px 13px; font: inherit; font-size: .93rem; color: var(--ink); transition: border-color .2s, box-shadow .2s, background .2s; }
.field textarea { resize: vertical; min-height: 90px; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--blue-500); box-shadow: 0 0 0 4px rgba(20, 136, 214, .12); background: #fff; }
.field input:user-invalid, .field textarea:user-invalid { border-color: #e0574f; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form-note { font-size: .82rem; color: var(--muted); margin: 0; }
.form-note a { color: var(--blue); font-weight: 600; }
.form-status { font-size: .9rem; font-weight: 600; min-height: 1.2em; }
.form-status.ok { color: var(--green-600); }
.form-status.err { color: #c43d35; }
.lead-form button[disabled] { opacity: .7; pointer-events: none; }

/* ---------- Trang con: đầu trang ---------- */
.page-hero { position: relative; overflow: hidden; color: #c5d6ea; background: radial-gradient(800px 400px at 90% 0%, rgba(34, 176, 236, .26), transparent 60%), radial-gradient(600px 400px at 0% 100%, rgba(79, 177, 42, .14), transparent 60%), linear-gradient(160deg, var(--navy-950) 0%, var(--navy) 60%, var(--navy-700) 100%); padding: 56px 0 60px; }
.page-hero .container { position: relative; }
.page-hero h1 { color: #fff; font-size: clamp(1.9rem, 1.3rem + 2.2vw, 3rem); font-weight: 800; margin-bottom: 14px; max-width: 820px; }
.page-hero p { max-width: 720px; font-size: 1.05rem; margin: 0; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; font-size: .84rem; color: #8fb2d4; margin-bottom: 18px; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb span:last-child { color: #d7e4f3; font-weight: 600; }
.subnav { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }
.subnav a { padding: 8px 16px; border-radius: 999px; font-size: .86rem; font-weight: 600; color: #e6eef8; background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .18); transition: background .2s, border-color .2s; }
.subnav a:hover { background: rgba(255, 255, 255, .16); border-color: rgba(143, 214, 255, .5); }
.section-tight { padding: 56px 0 90px; }
.sub-title { margin: 56px 0 20px; font-size: 1.3rem; }

/* ---------- Giới thiệu ---------- */
.facts-wide { grid-column: 1 / -1; }
.letter { max-width: 860px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 44px 48px; box-shadow: var(--shadow-sm); border-top: 4px solid var(--blue-500); }
.letter p { font-size: 1.02rem; }
.letter strong { color: var(--ink); }
.letter-sign { margin: 24px 0 0; font-style: italic; }
.vm-grid-lg { margin: 0 0 24px; }
.vm-grid-lg .vm-card { padding: 30px; background: linear-gradient(140deg, #f4f9fe, #f3f9ef); }
.vm-grid-lg .vm-card p { font-size: 1.02rem; }
.values-center { justify-content: center; }
.pillars-tight { margin-top: 0; }
.org-full { background: #fff; margin-bottom: 30px; }
.dept-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.dept { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 20px; }
.dept .ic-lg { color: var(--blue); margin-bottom: 10px; }
.dept h3 { font-size: 1rem; margin-bottom: 6px; }
.dept p { margin: 0; font-size: .86rem; color: var(--muted); }
.motto { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 10px 14px; margin-top: 36px; padding: 22px; border-radius: var(--radius-lg); background: var(--navy); color: #fff; font-weight: 700; }
.motto .ic { color: #9be05a; }

/* ---------- Lĩnh vực ---------- */
.sector { padding: 84px 0; }
.sector-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.sector-alt .sector-copy { order: 2; }
.sector-num { display: inline-block; font-size: .78rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; color: var(--green-700); margin-bottom: 10px; }
.sector-copy p { font-size: 1.02rem; }
.sector-copy strong { color: var(--ink); }
.tag-list { display: flex; flex-wrap: wrap; gap: 8px; margin: 6px 0 26px; }
.tag-list li { padding: 7px 14px; border-radius: 10px; background: #fff; border: 1px solid var(--line); font-size: .86rem; font-weight: 600; color: var(--navy-700); }
.sector-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.sector-photo { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); }
.sector-photo img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.sector-photo-note { position: absolute; left: 16px; right: 16px; bottom: 16px; display: flex; align-items: center; gap: 12px; padding: 14px 18px; border-radius: var(--radius); background: rgba(4, 26, 51, .86); color: #fff; font-weight: 600; font-size: .9rem; }
.sector-photo-note .ic-lg { flex: none; color: #9be05a; }
.sector-icon-card { position: relative; overflow: hidden; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 20px; min-height: 300px; padding: 36px; border-radius: var(--radius-lg); text-align: center; color: #d7e4f3; font-weight: 600; background: radial-gradient(400px 260px at 80% 10%, rgba(34, 176, 236, .35), transparent 60%), radial-gradient(300px 200px at 10% 100%, rgba(79, 177, 42, .3), transparent 60%), var(--navy); box-shadow: var(--shadow); }
.sector-icon-card::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(255, 255, 255, .05) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .05) 1px, transparent 1px); background-size: 34px 34px; }
.sector-icon-card svg { position: relative; width: 110px; height: 110px; fill: none; stroke: #8fd6ff; stroke-width: 1.1; stroke-linecap: round; stroke-linejoin: round; }
.sector-icon-card span { position: relative; }
.need-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.need-grid div { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; border-top: 3px solid var(--blue-500); }
.need-grid b { display: block; color: var(--ink); margin-bottom: 6px; }
.need-grid span { font-size: .88rem; color: var(--muted); }
.check-list { display: grid; gap: 10px; }
.check-list li { position: relative; padding-left: 30px; font-weight: 500; color: var(--ink); }
.check-list li::before { content: ""; position: absolute; left: 0; top: .2em; width: 20px; height: 20px; border-radius: 50%; background: #e8f5df url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%233f9620' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 12.5l4 4L18 8'/%3E%3C/svg%3E") center / 13px no-repeat; }
.sector-visual > .check-list { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 28px; }
.check-list-2 { grid-template-columns: 1fr 1fr; column-gap: 28px; }

/* ---------- Sản phẩm ---------- */
.result-count { margin: -14px 0 20px; font-size: .88rem; color: var(--muted); }

/* ---------- Năng lực ---------- */
.steps { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; counter-reset: step; }
.steps li { display: flex; gap: 18px; align-items: flex-start; padding: 22px; border-radius: var(--radius-lg); border: 1px solid var(--line); background: #fff; transition: box-shadow .25s, border-color .25s; }
.steps li:hover { box-shadow: var(--shadow); border-color: transparent; }
.steps li:last-child { grid-column: 1 / -1; }
.steps b { flex: none; display: grid; place-items: center; width: 50px; height: 50px; border-radius: 14px; background: var(--grad-brand); color: #fff; font-weight: 800; }
.steps h3 { margin-bottom: 4px; }
.steps p { margin: 0; font-size: .93rem; color: var(--muted); }
.flow { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 34px; padding: 24px; border-radius: var(--radius-lg); background: var(--bg-soft); border: 1px dashed var(--line-strong); }
.flow span { position: relative; padding: 8px 14px; border-radius: 10px; background: #fff; border: 1px solid var(--line); font-size: .85rem; font-weight: 600; color: var(--navy-700); }
.flow span:not(:last-child)::after { content: "→"; margin-left: 10px; color: var(--green-600); }
.flow-vertical { flex-direction: column; align-items: flex-start; margin-top: 0; background: #fff; }
.flow-vertical span:not(:last-child)::after { content: none; }
.flow-vertical span { width: 100%; border-left: 3px solid var(--blue-500); }
.mode-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.mode-card { background: #fff; border-radius: var(--radius-lg); padding: 26px; border: 1px solid var(--line); border-top: 4px solid var(--blue-500); }
.mode-card span { font-size: 2rem; font-weight: 800; color: var(--line-strong); line-height: 1; }
.mode-card h3 { margin: 12px 0 6px; }
.mode-card p { margin: 0; font-size: .92rem; color: var(--muted); }
.mode-card-hl { background: linear-gradient(160deg, var(--navy), var(--navy-700)); border-top-color: var(--green); }
.mode-card-hl h3 { color: #fff; }
.mode-card-hl p { color: #b6cbe2; }
.mode-card-hl span { color: rgba(255, 255, 255, .2); }
.service-list { margin-top: 30px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 30px; }
.service-list h3 { margin-bottom: 18px; }
.cap-detail { display: grid; grid-template-columns: .9fr 1.1fr; gap: 56px; align-items: start; }
.cap-detail-icon { display: grid; place-items: center; width: 60px; height: 60px; border-radius: 16px; background: var(--grad-accent); color: #fff; margin-bottom: 18px; }
.cap-detail-head p { color: var(--muted); font-size: 1.02rem; margin: 0; }
.cap-detail > .check-list { background: var(--bg-soft); border-radius: var(--radius-lg); padding: 28px; }
.qc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.qc-grid span { display: flex; align-items: center; gap: 10px; padding: 16px; border-radius: var(--radius); background: var(--bg-soft); border: 1px solid var(--line); font-weight: 600; color: var(--ink); font-size: .92rem; }
.qc-grid span::before { content: ""; flex: none; width: 10px; height: 10px; border-radius: 50%; background: var(--grad-accent); }

/* ---------- Dự án ---------- */
.project-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.project-card { display: flex; flex-direction: column; padding: 24px; border-radius: var(--radius-lg); border: 1px solid var(--line); background: #fff; transition: transform .25s, box-shadow .25s, border-color .25s; }
.project-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); border-color: transparent; }
.project-card .project-num { margin-bottom: 16px; }
.project-card h3 { font-size: 1rem; }
.project-card p { margin: auto 0 0; font-size: .85rem; color: var(--muted); }
.project-dl { margin: 10px 0 0; display: grid; gap: 8px; }
.project-dl div { display: grid; grid-template-columns: 90px 1fr; gap: 10px; font-size: .9rem; }
.project-dl dt { color: var(--muted); font-weight: 600; }
.project-dl dd { margin: 0; color: var(--text); }
.project:target { border-color: var(--blue-500); box-shadow: 0 0 0 4px rgba(20, 136, 214, .12); }

/* ---------- Liên hệ ---------- */
.contact-alt { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 8px; margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line); font-size: .9rem; color: var(--muted); }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-950); color: #8ea6c1; padding: 70px 0 0; font-size: .92rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 50px; }
.footer-brand img { width: 120px; background: #fff; border-radius: 12px; padding: 8px 10px; margin-bottom: 16px; }
.footer-slogan { color: #cfe0f1; font-weight: 700; font-size: .8rem; letter-spacing: .08em; }
.site-footer b { display: block; color: #fff; margin-bottom: 14px; font-size: .95rem; }
.footer-grid > div:not(.footer-brand) { display: flex; flex-direction: column; align-items: flex-start; gap: 9px; }
.site-footer a, .site-footer button { color: #8ea6c1; background: none; border: 0; padding: 0; text-align: left; transition: color .2s; }
.site-footer a:hover, .site-footer button:hover { color: #fff; }
.copyright { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; border-top: 1px solid rgba(255, 255, 255, .08); padding: 22px 0; font-size: .82rem; }

/* ---------- Floating ---------- */
.float-contact { position: fixed; right: 18px; bottom: 86px; z-index: 40; display: grid; gap: 10px; }
.float-contact a { width: 52px; height: 52px; border-radius: 50%; display: grid; place-items: center; color: #fff; box-shadow: 0 10px 24px rgba(0, 0, 0, .2); transition: transform .2s; }
.float-contact a:hover { transform: scale(1.08); }
.fc-zalo { background: #0068ff; font-weight: 800; font-size: .78rem; }
.fc-phone { background: var(--green); animation: ring 2.4s infinite; }
.fc-phone .ic { width: 22px; height: 22px; }
@keyframes ring { 0%, 100% { box-shadow: 0 0 0 0 rgba(79, 177, 42, .5); } 70% { box-shadow: 0 0 0 14px rgba(79, 177, 42, 0); } }
.to-top { position: fixed; right: 18px; bottom: 24px; z-index: 40; width: 52px; height: 48px; border-radius: 14px; border: 0; background: var(--navy); color: #fff; display: grid; place-items: center; opacity: 0; transform: translateY(10px); pointer-events: none; transition: opacity .25s, transform .25s; }
.to-top .ic { transform: rotate(-90deg); }
.to-top.show { opacity: 1; transform: none; pointer-events: auto; }

/* ---------- Modal ---------- */
.modal { position: fixed; inset: 0; z-index: 100; display: none; align-items: center; justify-content: center; padding: 20px; }
.modal.open { display: flex; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(4, 26, 51, .6); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px); animation: fade .2s; }
.modal-panel { position: relative; width: min(760px, 100%); max-height: calc(100vh - 40px); overflow-y: auto; background: #fff; border-radius: var(--radius-lg); padding: 36px; box-shadow: var(--shadow-lg); animation: pop .25s ease-out; }
.modal-panel h2 { font-size: 1.7rem; margin-bottom: 6px; }
.modal-sub { color: var(--muted); font-size: .93rem; margin-bottom: 22px; }
.modal-close { position: absolute; right: 16px; top: 14px; width: 40px; height: 40px; border-radius: 50%; border: 0; background: var(--bg-soft); font-size: 1.5rem; color: var(--ink); line-height: 1; }
.modal-close:hover { background: var(--line); }
@keyframes fade { from { opacity: 0; } }
@keyframes pop { from { opacity: 0; transform: translateY(16px) scale(.98); } }

/* ---------- Reveal on scroll ---------- */
.js .reveal { opacity: 0; transform: translateY(28px) scale(.985); transition: opacity .8s cubic-bezier(.2, .7, .2, 1), transform .8s cubic-bezier(.2, .7, .2, 1); }
.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .fc-phone { animation: none; }
}

/* =========================================================
   Chiều sâu: ảnh thật, lớp chồng, bóng nhiều tầng
   ========================================================= */

/* Ảnh: ảnh gốc đen trắng + phủ navy → tông duotone thống nhất */
figure { margin: 0; }
.tint { position: relative; overflow: hidden; isolation: isolate; }
.tint::after { content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none; background: linear-gradient(160deg, rgba(20, 136, 214, .22), rgba(4, 26, 51, .42)); mix-blend-mode: multiply; }
.tint img { transition: transform .8s cubic-bezier(.2, .7, .2, 1); }

/* Section có ảnh nền (parallax nhẹ trên desktop) */
.section-photo { position: relative; isolation: isolate; overflow: hidden; }
.section-photo::before { content: ""; position: absolute; inset: 0; z-index: -1; background: var(--bg) center / cover no-repeat fixed; opacity: .2; mix-blend-mode: luminosity; }
.section-dark.section-photo { background: linear-gradient(170deg, rgba(4, 26, 51, .97), rgba(8, 44, 84, .9)), var(--navy-950); }
.section-dark.section-photo::before { opacity: .32; }
.boq-band.section-photo::before { opacity: .22; }
.cta-box.section-photo::before { opacity: .26; border-radius: inherit; background-attachment: scroll; }

/* Hero: ảnh ụ khô làm nền, zoom rất chậm */
.hero-bg { position: absolute; inset: 0; overflow: hidden; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; opacity: .34; mix-blend-mode: luminosity; transform-origin: 70% 40%; animation: drift-zoom 28s ease-in-out infinite alternate; }
.hero-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(4, 26, 51, .94) 0%, rgba(4, 26, 51, .7) 45%, rgba(4, 26, 51, .35) 100%), linear-gradient(0deg, rgba(4, 26, 51, .85), transparent 35%); }
@keyframes drift-zoom { from { transform: scale(1.04); } to { transform: scale(1.14) translate(-1.5%, -1%); } }
.hero-grid, .hero-pattern { z-index: 1; }

/* Hero: cụm ảnh chồng lớp */
.hero-visual { padding: 44px 0 0 56px; }
.hero-image { aspect-ratio: 4 / 3; border: 0; box-shadow: var(--shadow-lg); transform: perspective(1400px) rotateY(-4deg); transform-origin: left center; }
.hero-image-2 { position: absolute; left: 0; top: 0; z-index: 2; width: 38%; aspect-ratio: 1; border-radius: var(--radius-lg); border: 6px solid rgba(255, 255, 255, .92); box-shadow: var(--shadow-lg); }
.hero-image-2 img { width: 100%; height: 100%; object-fit: cover; }
.hero-chip { position: absolute; right: -14px; top: 78px; z-index: 3; display: flex; align-items: center; gap: 12px; padding: 12px 18px 12px 14px; border-radius: 16px; background: rgba(255, 255, 255, .14); border: 1px solid rgba(255, 255, 255, .28); backdrop-filter: blur(14px) saturate(140%); -webkit-backdrop-filter: blur(14px) saturate(140%); color: #fff; box-shadow: var(--shadow); font-size: .9rem; }
.hero-chip .ic { width: 34px; height: 34px; padding: 7px; border-radius: 10px; background: var(--grad-accent); }
.hero-chip b { display: block; font-size: .75rem; color: #9be05a; }
.search-card { z-index: 3; margin-top: -96px; margin-right: -14px; }
.stats { box-shadow: var(--shadow-lg); }

/* Giới thiệu: ảnh cảng xưa phía sau, hồ sơ năng lực phía trước */
.about-media { padding: 0; min-height: 520px; }
.about-media::before { display: none; }
.about-back { position: absolute; left: 0; top: 0; width: 70%; aspect-ratio: 4 / 3.2; border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.about-back img { width: 100%; height: 100%; object-fit: cover; }
.about-cover { width: 58%; margin: 120px 0 0 auto; z-index: 1; }
.about-badge { z-index: 2; right: auto; left: 18px; bottom: 18px; box-shadow: var(--shadow-lg); }

/* Thẻ: viền sáng phía trên + bóng nhiều tầng, nổi lên khi rê chuột */
.solution-card, .product, .pillar, .project-card, .project, .vm-card, .mode-card, .dept, .commit-grid div, .need-grid div, .steps li, .letter, .service-list, .contact-card { box-shadow: var(--shadow-sm), var(--lift); }
.solution-card:hover, .product:hover, .pillar:hover, .project-card:hover, .project:hover, .mode-card:hover, .dept:hover, .steps li:hover { box-shadow: var(--shadow), var(--lift); }
.mode-card, .dept, .commit-grid div { transition: transform .25s, box-shadow .25s; }
.mode-card:hover, .dept:hover, .commit-grid div:hover { transform: translateY(-4px); }
.solution-card.featured { box-shadow: var(--shadow-lg); }

/* Lĩnh vực (trang chủ): mỗi thẻ có ảnh ngành ẩn phía sau, hiện rõ khi rê chuột */
.industry { overflow: hidden; isolation: isolate; }
/* Ảnh nền ở phần dưới trang chỉ tải khi sắp cuộn tới (script.js thêm lớp .bg-in) */
.js .section-photo:not(.bg-in)::before, .js .industry:not(.bg-in)::before { background-image: none; }
.industry::before { content: ""; position: absolute; inset: 0; z-index: -2; background: var(--bg, none) center / cover no-repeat; opacity: .26; filter: grayscale(1); transition: opacity .45s, transform .8s cubic-bezier(.2, .7, .2, 1); }
.industry::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(4, 26, 51, .35), rgba(4, 26, 51, .92) 70%); }
.industry:hover::before { opacity: .7; transform: scale(1.06); }
.industry:hover { box-shadow: var(--shadow-lg); }
.industry-feature { background: none; }
.industry-feature::before { opacity: .85; }
.industry-feature::after { background: linear-gradient(0deg, rgba(4, 26, 51, .95) 20%, rgba(4, 26, 51, .25)); }
.industry-feature > * { position: static; }

/* Đầu trang con: ảnh nền theo từng trang */
.page-hero.has-photo { padding: 92px 0 100px; }
.page-hero.has-photo::before { content: ""; position: absolute; inset: 0; background: var(--bg) center / cover no-repeat; opacity: .42; mix-blend-mode: luminosity; }
.page-hero.has-photo::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(4, 26, 51, .95) 0%, rgba(4, 26, 51, .72) 50%, rgba(4, 26, 51, .3) 100%); }
.page-hero .container { z-index: 1; }
.page-hero h1 { text-shadow: 0 2px 24px rgba(0, 0, 0, .25); }

/* Lĩnh vực (trang con): ảnh có khung lệch phía sau */
.sector-visual { position: relative; isolation: isolate; }
.sector-visual::before { content: ""; position: absolute; inset: 28px -18px -18px 28px; z-index: -1; border-radius: var(--radius-lg); background: #e6f1fb; }
.sector-alt .sector-visual::before { inset: 28px 28px -18px -18px; background: #edf7e6; }
.sector-photo { box-shadow: var(--shadow-lg); }
.sector-photo:hover img { transform: scale(1.05); }
.sector-photo-note { z-index: 2; background: rgba(4, 26, 51, .62); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border: 1px solid rgba(255, 255, 255, .14); }
.sector-photo-sm { margin-bottom: 16px; border-radius: var(--radius-lg); }
.sector-photo-sm img { width: 100%; aspect-ratio: 16 / 8; object-fit: cover; }

/* Năng lực: ảnh trong phần đầu mỗi mục */
.cap-photo { margin-top: 28px; border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.cap-photo img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.cap-photo:hover img, .project-image:hover img, .hero-image:hover img { transform: scale(1.04); }

/* Nguồn ảnh ở footer */
.credits { padding-bottom: 24px; font-size: .8rem; color: #6f88a5; }
.credits summary { cursor: pointer; color: #b9cbe0; font-weight: 600; }
.credits p { margin: 10px 0 6px; }
.credits ul { display: grid; gap: 4px; }
.credits a { color: #8ea6c1; text-decoration: underline; }

@media (prefers-reduced-motion: reduce) {
  .hero-bg img { animation: none; }
  .tint img, /* Ảnh nền ở phần dưới trang chỉ tải khi sắp cuộn tới (script.js thêm lớp .bg-in) */
.js .section-photo:not(.bg-in)::before, .js .industry:not(.bg-in)::before { background-image: none; }
.industry::before { transition: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .solution-grid, .product-grid, .project-cards { grid-template-columns: repeat(2, 1fr); }
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .mode-cards { grid-template-columns: repeat(2, 1fr); }
  .dept-grid { grid-template-columns: repeat(3, 1fr); }
  .process { grid-template-columns: repeat(4, 1fr); row-gap: 30px; }
  .process::before { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* Menu dạng ☰ cho màn hình nhỏ */
@media (max-width: 1180px) {
  /* backdrop-filter khiến menu position: fixed bị giới hạn trong header */
  .site-header { backdrop-filter: none; -webkit-backdrop-filter: none; background: #fff; }
  .menu-toggle { display: flex; margin-left: auto; }
  .nav-cta { display: none; }
  .nav-menu { position: fixed; left: 0; right: 0; top: var(--header-h); bottom: 0; flex-direction: column; align-items: stretch; gap: 0; margin: 0; padding: 8px 20px 30px; background: #fff; border-top: 1px solid var(--line); opacity: 0; transform: translateY(-12px); visibility: hidden; transition: opacity .25s, transform .25s, visibility .25s; overflow-y: auto; }
  .nav.open .nav-menu { opacity: 1; transform: none; visibility: visible; }
  .nav-menu > li { display: grid; grid-template-columns: 1fr auto; align-items: center; border-bottom: 1px solid var(--line); }
  .nav-link { padding: 15px 4px; border-radius: 0; font-size: 1.02rem; }
  .nav-link::after, .nav-link .chev { display: none; }
  .nav-link[aria-current="page"] { color: var(--blue); }
  .dd-toggle { display: grid; place-items: center; width: 44px; height: 44px; border: 0; border-radius: 10px; background: var(--bg-soft); color: var(--navy); }
  .dd-toggle .ic { transition: transform .25s; }
  .has-dd.open .dd-toggle .ic { transform: rotate(180deg); }
  .dropdown, .dropdown-mega { position: static; grid-column: 1 / -1; display: none; width: auto; min-width: 0; padding: 0 0 12px; border: 0; border-radius: 0; box-shadow: none; opacity: 1; visibility: visible; transform: none; transition: none; }
  .dropdown::before { content: none; }
  .has-dd:hover > .dropdown, .has-dd:focus-within > .dropdown { transform: none; }
  .has-dd.open > .dropdown { display: grid; grid-template-columns: 1fr; }
  .dropdown a { padding: 9px 12px; }
  .dropdown a span, .dd-icon .ic-lg { display: none; }
  .dropdown .dd-icon > span { display: block; }
  .nav-menu > li.nav-cta-mobile { display: block; border: 0; margin-top: 20px; }
}

@media (max-width: 920px) {
  :root { --header-h: 66px; }
  .topbar-name { display: none; }
  .topbar-inner { justify-content: center; }
  .hero { padding: 60px 0 120px; }
  .hero-grid, .about-grid, .project-layout, .contact-grid, .sector-grid, .cap-detail { grid-template-columns: 1fr; }
  .hero-grid { gap: 40px; }
  .sector-grid, .cap-detail { gap: 32px; }
  .sector-alt .sector-copy { order: 0; }
  .sector { padding: 64px 0; }
  .section-head { grid-template-columns: 1fr; gap: 12px; }
  .section { padding: 76px 0; }
  .about-media { max-width: 420px; margin-inline: auto; }
  .pillars { grid-template-columns: repeat(2, 1fr); margin-top: 56px; }
  .pillars-tight { margin-top: 0; }
  .project-image { position: relative; top: 0; }
  .commit-grid, .steps { grid-template-columns: 1fr 1fr; }
  .boq-grid { grid-template-columns: 1fr; text-align: left; gap: 20px; }
  .boq-icon { display: none; }
  .cta-box { flex-direction: column; align-items: flex-start; padding: 40px 30px; }
  .letter { padding: 32px 26px; }
  .section-photo::before { background-attachment: scroll; }
  .hero-visual { padding: 30px 0 0 34px; }
  .hero-image { transform: none; }
  .about-media { min-height: 0; }
  .page-hero.has-photo { padding: 64px 0 72px; }
}

@media (max-width: 640px) {
  body { font-size: 15px; }
  .btn { white-space: normal; text-align: center; }
  .container { width: calc(100% - 32px); }
  .topbar-links { gap: 14px; font-size: .75rem; }
  .brand img { width: 74px; }
  .brand-text strong { font-size: 1rem; }
  .hero { padding: 44px 0 110px; }
  .hero-actions .btn { flex: 1 1 100%; }
  .search-card { margin-top: -40px; padding: 20px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stats div:nth-child(2) { border-right: 0; }
  .stats div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .stats div { padding: 20px 12px; }
  .vm-grid, .facts, .pillars, .solution-grid, .industry-grid, .mode-cards, .product-grid, .project-cards, .commit-grid, .steps, .need-grid, .check-list-2, .qc-grid, .dept-grid, .form-grid, .footer-grid { grid-template-columns: 1fr; }
  .facts div:nth-child(odd) { padding-right: 0; }
  .industry-feature { grid-column: auto; grid-row: auto; min-height: 300px; }
  .product-toolbar { flex-direction: column; align-items: stretch; }
  .process { grid-template-columns: 1fr 1fr; }
  .project { grid-template-columns: 1fr; gap: 12px; padding: 20px; }
  .project-dl div { grid-template-columns: 1fr; gap: 2px; }
  .page-hero { padding: 40px 0 44px; }
  .sector-icon-card { min-height: 220px; }
  .sector-icon-card svg { width: 80px; height: 80px; }
  .sector-actions .btn { flex: 1 1 100%; }
  .flow span:not(:last-child)::after { content: none; }
  .motto { flex-direction: column; text-align: center; }
  .motto .ic { transform: rotate(90deg); }
  .cta-actions { width: 100%; }
  .cta-actions .btn { flex: 1 1 100%; }
  .modal { padding: 0; align-items: flex-end; }
  .modal-panel { padding: 28px 20px; border-radius: 22px 22px 0 0; max-height: 92vh; }
  .contact-card { padding: 24px 20px; }
  .float-contact { right: 12px; bottom: 76px; }
  .float-contact a { width: 46px; height: 46px; }
  .to-top { right: 12px; bottom: 18px; width: 46px; height: 44px; }
  .hero-visual { padding: 22px 0 0 22px; }
  .hero-image-2 { width: 34%; border-width: 4px; }
  .hero-chip { display: none; }
  .search-card { margin-right: 0; margin-top: -60px; }
  .sector-visual::before { inset: 16px -8px -10px 16px; }
  .sector-alt .sector-visual::before { inset: 16px 16px -10px -8px; }
  .page-hero.has-photo { padding: 48px 0 56px; }
}

/* ---------- Trang 404 ---------- */
.notfound { display: grid; grid-template-columns: minmax(0, 470px) 1fr; gap: 40px; align-items: center; }
.notfound .search-card { margin: 0; }
.notfound-links { display: flex; flex-wrap: wrap; gap: 12px; }
@media (max-width: 920px) {
  .notfound { grid-template-columns: 1fr; gap: 28px; }
}