/* HRVN — trang giới thiệu. Màu gom ở :root, lấy từ logo HRVN: navy của chữ HRVN, xanh #004dfc và ngọc #01d4c9 của chữ V. */
:root {
  --navy: #0a1b31;
  --navy-2: #12325e;
  --ink: #1b2430;
  --muted: #5b6878;
  --line: #e3e8ef;
  --bg: #ffffff;
  --bg-soft: #f4f7fb;
  --accent: #004dfc;
  --accent-ink: #ffffff;
  --accent-soft: #e9f0ff;
  --teal: #01d4c9;
  --grad-text: linear-gradient(95deg, #0046e8 0%, #0a8fb0 100%);
  --ok: #1f8a5b;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(10, 27, 49, 0.06), 0 8px 24px rgba(10, 27, 49, 0.07);
  --max: 1160px;
  --font: 'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body { margin: 0; font-family: var(--font); color: var(--ink); background: var(--bg); font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.muted { color: var(--muted); }
.eyebrow { font-size: 13px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); margin: 0 0 10px; }
h1, h2, h3 { line-height: 1.25; margin: 0; color: var(--navy); }
h1, h2 { text-wrap: balance; }
h1 { font-size: clamp(30px, 4.6vw, 48px); font-weight: 800; letter-spacing: -0.015em; }
h1 .h1-2 { display: table; color: var(--accent); }
@supports ((-webkit-background-clip: text) or (background-clip: text)) {
  h1 .h1-2 { background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
}
h2 { font-size: clamp(24px, 3.2vw, 34px); font-weight: 800; letter-spacing: -0.01em; }
h3 { font-size: 19px; font-weight: 700; }
section { padding: 76px 0; }
.sec-head { max-width: 720px; margin-bottom: 38px; }
.sec-head p { margin: 12px 0 0; color: var(--muted); font-size: 17px; }
.sec-head p.eyebrow { margin: 0 0 10px; color: var(--accent); font-size: 13px; }
.soft { background: var(--bg-soft); }

/* Nút */
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 13px 22px; border-radius: 10px; font-weight: 700; font-size: 16px;
  text-decoration: none; border: 1.5px solid transparent; cursor: pointer; transition: transform .12s ease, box-shadow .12s ease, background .12s; }
.btn svg { width: 20px; height: 20px; flex: none; }
.btn-primary { background: var(--accent); color: var(--accent-ink); box-shadow: 0 6px 16px rgba(0, 77, 252, 0.26); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 10px 22px rgba(0, 77, 252, 0.32); }
.btn-ghost { background: transparent; color: var(--navy); border-color: #c9d3df; }
.btn-ghost:hover { background: #fff; border-color: var(--navy); }
.btn-light { background: #fff; color: var(--navy); }
.btn-sm { padding: 9px 14px; font-size: 14px; border-radius: 9px; }

/* Đầu trang */
.top { position: sticky; top: 0; z-index: 20; background: rgba(255, 255, 255, 0.92); backdrop-filter: saturate(160%) blur(10px); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; gap: 20px; height: 68px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; flex: none; }
.logo-mark { height: 46px; width: auto; }
.logo-chu { height: 22px; width: auto; }
.nav { display: flex; gap: 22px; margin-left: auto; }
.nav a { text-decoration: none; font-weight: 600; font-size: 15px; color: #33475b; }
.nav a:hover { color: var(--accent); }
.top-cta { display: flex; gap: 10px; }
.menu-btn { display: none; margin-left: auto; background: none; border: 0; padding: 8px; cursor: pointer; color: var(--navy); }

/* Mở đầu */
.hero { padding: 64px 0 56px; background: radial-gradient(1200px 500px at 85% -10%, #e3edff 0%, rgba(227, 237, 255, 0) 60%), radial-gradient(700px 360px at -5% 0%, rgba(1, 212, 201, 0.07), rgba(1, 212, 201, 0) 60%), var(--bg); }
.hero .wrap { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 48px; align-items: center; }
.hero p.lead { font-size: 19px; color: #3a4a5c; margin: 18px 0 26px; max-width: 620px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; }
.ticks { list-style: none; padding: 0; margin: 26px 0 0; display: grid; gap: 10px; }
.ticks li { display: flex; gap: 10px; align-items: flex-start; font-weight: 600; color: #2b3b4d; }
.ticks svg { width: 20px; height: 20px; color: var(--ok); flex: none; margin-top: 3px; }
.panel { background: radial-gradient(360px 260px at 108% 108%, rgba(1, 212, 201, 0.22), rgba(1, 212, 201, 0) 70%), radial-gradient(380px 260px at -12% -12%, rgba(0, 77, 252, 0.38), rgba(0, 77, 252, 0) 70%), var(--navy); color: #fff; border-radius: 20px; padding: 28px; box-shadow: var(--shadow); position: relative; overflow: hidden; }
.panel::after { content: ''; position: absolute; right: -30px; bottom: -36px; width: 170px; height: 196px; background: url(/img/hrvn-mark-lon.webp) no-repeat center / contain; opacity: 0.13; pointer-events: none; }
.panel > * { position: relative; z-index: 1; }
.panel h3 { color: #fff; font-size: 17px; margin-bottom: 18px; }
.panel .row { display: flex; gap: 14px; align-items: flex-start; padding: 14px 0; border-top: 1px solid rgba(255, 255, 255, 0.12); }
.panel .row:first-of-type { border-top: 0; }
.panel .ico { width: 40px; height: 40px; border-radius: 10px; background: rgba(255, 255, 255, 0.1); display: grid; place-items: center; flex: none; }
.panel .ico svg { width: 22px; height: 22px; color: #7fe7ef; }
.panel b { display: block; font-size: 16px; }
.panel span { color: #c8d6e5; font-size: 14px; }

/* Thẻ */
.grid { display: grid; gap: 20px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); }
.card .ico { width: 46px; height: 46px; border-radius: 12px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; margin-bottom: 16px; }
.card .ico svg { width: 24px; height: 24px; }
.card p { margin: 10px 0 0; color: var(--muted); }
.card ul { margin: 14px 0 0; padding-left: 20px; color: #3a4a5c; }
.card ul li { margin: 6px 0; }
.tag { display: inline-block; font-size: 12px; font-weight: 700; color: var(--navy-2); background: #e8eff8; border-radius: 999px; padding: 4px 10px; margin-bottom: 12px; }
.note { font-size: 14px; color: var(--muted); margin-top: 14px; }
.note.phap-ly { display: flex; gap: 9px; align-items: flex-start; color: #23405c; background: #eef8f9; border: 1px solid #cdecef; border-radius: 10px; padding: 9px 12px; }
.note.phap-ly svg { width: 18px; height: 18px; color: #0a8fb0; flex: none; margin-top: 2px; }
.note.phap-ly b { color: var(--navy); }

/* Quy trình */
.steps { counter-reset: b; display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.step { position: relative; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 18px; }
.step::before { counter-increment: b; content: counter(b); width: 34px; height: 34px; border-radius: 50%; background: linear-gradient(135deg, #004dfc, #0a8fb0); color: #fff; display: grid; place-items: center; font-weight: 800; margin-bottom: 12px; }
.step b { display: block; color: var(--navy); }
.step span { display: block; font-size: 14px; color: var(--muted); margin-top: 6px; }

/* Khu vực + ngành */
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip { background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 8px 14px; font-weight: 600; font-size: 14px; color: #33475b; }

/* Dải kêu gọi */
.band { background: radial-gradient(520px 260px at 102% -10%, rgba(1, 212, 201, 0.2), rgba(1, 212, 201, 0) 70%), radial-gradient(460px 260px at -4% 110%, rgba(0, 77, 252, 0.36), rgba(0, 77, 252, 0) 70%), var(--navy); color: #fff; border-radius: 20px; padding: 38px; display: flex; gap: 24px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.band h2 { color: #fff; }
.band p { color: #c8d6e5; margin: 8px 0 0; }
.band > div { flex: 1 1 520px; max-width: 760px; }

/* Hỏi đáp */
details { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 16px 20px; }
details + details { margin-top: 12px; }
summary { cursor: pointer; font-weight: 700; color: var(--navy); list-style: none; display: flex; justify-content: space-between; gap: 16px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: '+'; font-size: 22px; line-height: 1; color: var(--accent); }
details[open] summary::after { content: '–'; }
details p { margin: 10px 0 0; color: #3a4a5c; }

/* Liên hệ */
.contact { display: grid; grid-template-columns: minmax(0, 9fr) minmax(0, 11fr); gap: 32px; align-items: start; }
.info-list { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 14px; }
.info-list li { display: flex; gap: 12px; }
.info-list svg { width: 22px; height: 22px; color: var(--accent); flex: none; margin-top: 2px; }
.info-list b { display: block; color: var(--navy); }
form .btn { justify-content: center; }
form { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 26px; box-shadow: var(--shadow); display: grid; gap: 14px; }
.fr { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.fr > * { min-width: 0; }
label { display: grid; gap: 6px; font-weight: 600; font-size: 14px; color: #33475b; }
input:not([type=checkbox]), select, textarea { width: 100%; min-width: 0; }
input, select, textarea { font: inherit; font-size: 15px; font-weight: 500; padding: 11px 13px; border: 1.5px solid #d5dde7; border-radius: 10px; background: #fbfcfe; color: var(--ink); }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); background: #fff; box-shadow: 0 0 0 3px rgba(0, 77, 252, 0.14); }
textarea { min-height: 96px; resize: vertical; }
.consent { display: flex; gap: 10px; align-items: flex-start; font-weight: 500; font-size: 13px; color: var(--muted); }
.consent input { margin-top: 3px; width: 17px; height: 17px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-msg { font-weight: 600; font-size: 15px; }
.form-msg.ok { color: var(--ok); }
.form-msg.err { color: #c0392b; }

/* Chân trang */
footer { background: #08162a; color: #b9c7d6; padding: 44px 0 26px; font-size: 14px; }
footer .cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 28px; }
footer b { color: #fff; }
footer .f-logo { display: flex; align-items: center; gap: 9px; margin-bottom: 14px; }
footer .f-logo img { height: 38px; width: auto; }
footer .f-logo img + img { height: 19px; }
footer a { color: #dfe8f1; text-decoration: none; }
footer .legal { border-top: 1px solid rgba(255, 255, 255, 0.1); margin-top: 28px; padding-top: 18px; font-size: 13px; color: #8ea3b8; }

/* Nút nổi Zalo / gọi (điện thoại) */
.float { position: fixed; right: 16px; bottom: 16px; z-index: 30; display: grid; gap: 10px; }
.float a { width: 54px; height: 54px; border-radius: 50%; display: grid; place-items: center; box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2); text-decoration: none; }
.float .zalo { background: #0068ff; color: #fff; font-weight: 800; font-size: 13px; }
.float .call { background: var(--navy); color: #fff; }
.float svg { width: 24px; height: 24px; }

@media (max-width: 980px) {
  .hero .wrap, .contact { grid-template-columns: 1fr; }
  .g3, .g4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  footer .cols { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  section { padding: 56px 0; }
  .nav, .top-cta { display: none; }
  .menu-btn { display: block; }
  .top.open .nav { display: grid; position: absolute; top: 68px; left: 0; right: 0; background: #fff; padding: 12px 20px 18px; gap: 14px; border-bottom: 1px solid var(--line); }
  .g2, .g3, .g4, .fr, .steps { grid-template-columns: 1fr; }
  .band { padding: 28px 22px; }
  .hero { padding-top: 40px; }
}

/* Chỗ chờ điền (hotline, Zalo…) — tô vàng để thấy ngay khi xem thử */
.cho-dien { background: #fff3b0; color: #6b5200; border-radius: 4px; padding: 0 4px; }