:root {
  --brand: #8cc63f;        /* xanh cốm – HR Strategy brand */
  --brand-strong: #5e9a24; /* buttons, links, headings */
  --brand-deep: #2f5212;
  --brand-light: #f2f9e8;
  --text: #1f2a1a;
  --muted: #5b6655;
  --border: #d9e6cc;
  --error: #b42318;
  --bg: #f7faf3;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Be Vietnam Pro", "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
}
.top { background: var(--brand); color: var(--brand-deep); padding: 16px; }
.top-inner, main, footer { max-width: 760px; margin: 0 auto; }
.top-inner { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.lang { display: flex; border: 1px solid var(--brand-deep); border-radius: 999px; overflow: hidden; flex-shrink: 0; }
.lang button { width: auto; margin: 0; padding: 6px 12px; border-radius: 0; background: transparent; color: var(--brand-deep); font-size: 13px; font-weight: 700; }
.lang button.on { background: var(--brand-deep); color: #fff; }
.lang button:hover { background: rgba(47,82,18,.15); }
.lang button.on:hover { background: var(--brand-deep); }
.brand { font-weight: 800; letter-spacing: .02em; font-size: 18px; }
.brand span { font-weight: 600; }
.brand small { display: block; font-weight: 500; font-size: 12px; opacity: .85; letter-spacing: .04em; }
main { padding: 24px 16px 40px; }
h1 { font-size: 28px; line-height: 1.2; margin: 4px 0 4px; color: var(--brand-deep); }
.h1-vi { color: var(--muted); font-size: 15px; margin: 0 0 18px; }
.welcome { background: #fff; border: 1px solid var(--border); border-left: 5px solid var(--brand); border-radius: 12px; padding: 16px 18px; margin-bottom: 14px; }
.welcome p { margin: 0 0 8px; }
.welcome p:last-child { margin-bottom: 0; }
.vi { color: var(--muted); }
.hours { background: var(--brand-light); border-radius: 12px; padding: 12px 16px; font-size: 14px; margin-bottom: 18px; }
.hours p { margin: 0 0 4px; }
.hours p:last-child { margin: 0; }
.card { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 22px 20px; margin-bottom: 18px; }
.card h2 { font-size: 17px; margin: 0 0 14px; color: var(--brand-strong); }
.card h2 .vi { font-weight: 500; font-size: 14px; }
label { display: block; font-weight: 600; font-size: 14px; margin: 14px 0 6px; }
label .vi { font-weight: 400; }
label .req { color: var(--error); }
label .hint { display: block; font-weight: 400; color: var(--muted); font-size: 13px; }
input[type=text], input[type=email], input[type=tel], input[type=number], input[type=date], input[type=url], textarea, select {
  width: 100%; padding: 11px 12px; border: 1px solid var(--border); border-radius: 8px; font: inherit; background: #fff;
}
input:focus, textarea:focus, select:focus { outline: 2px solid rgba(140,198,63,.35); border-color: var(--brand-strong); }
textarea { min-height: 92px; resize: vertical; }
input[type=file] { font: inherit; padding: 10px 0; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
@media (max-width: 600px) { .row { grid-template-columns: 1fr; } h1 { font-size: 23px; } }
.checks { display: grid; gap: 8px; margin-top: 4px; }
label.check { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; margin: 0; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; background: #fff; }
label.check input { margin-top: 4px; }
.hp { position: absolute; left: -5000px; height: 0; overflow: hidden; }
.consent { font-size: 13px; color: var(--muted); margin: 14px 0 0; }
.promise { background: var(--brand-light); border-radius: 10px; padding: 12px 14px; font-size: 14px; margin-top: 16px; }
.promise p { margin: 0 0 4px; }
.promise p:last-child { margin: 0; }
button { width: 100%; margin-top: 14px; padding: 14px; background: var(--brand-strong); color: #fff; border: 0; border-radius: 10px; font: inherit; font-weight: 700; font-size: 16px; cursor: pointer; }
button:hover { background: var(--brand-deep); }
button[disabled] { opacity: .6; cursor: wait; }
.choices { display: grid; gap: 16px; grid-template-columns: 1fr 1fr; }
@media (max-width: 600px) { .choices { grid-template-columns: 1fr; } }
.choice { display: block; text-decoration: none; color: inherit; background: #fff; border: 1px solid var(--border); border-top: 5px solid var(--brand); border-radius: 12px; padding: 20px; }
.choice:hover { background: var(--brand-light); }
.choice strong { display: block; font-size: 19px; color: var(--brand-deep); margin-bottom: 6px; }
.choice span { color: var(--muted); font-size: 14px; display: block; }
.notice { background: var(--brand-light); border-radius: 10px; padding: 14px 16px; font-size: 15px; }
.notice p { margin: 0 0 6px; }
.notice p:last-child { margin: 0; }
.error-box { background: #fef3f2; color: var(--error); border-radius: 10px; padding: 12px 16px; margin-bottom: 16px; }
a { color: var(--brand-strong); }
footer { padding: 0 16px 32px; color: var(--muted); font-size: 13px; }