:root {
  --bg: #12141c;
  --panel: #1b1e29;
  --line: #2a2e3d;
  --text: #f4efe6;
  --muted: #b9b2a6;
  --orange: #ff7a1a;
  --orange-2: #ffb347;
  --radius: 22px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 400 17px/1.6 "Be Vietnam Pro", system-ui, sans-serif;
}
html[data-lang="vi"] [lang="en"], html[data-lang="en"] [lang="vi"] { display: none !important; }
a { color: inherit; }
img { max-width: 100%; display: block; }
h1, h2, h3 { font-family: "Baloo 2", "Be Vietnam Pro", sans-serif; line-height: 1.1; margin: 0; }
h2 { font-size: clamp(32px, 5vw, 44px); margin-bottom: 24px; }

.top {
  position: sticky; top: 0; z-index: 10; display: flex; align-items: center; justify-content: space-between;
  padding: 12px clamp(16px, 4vw, 48px); background: rgba(18, 20, 28, .86); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font: 800 22px "Baloo 2", sans-serif; }
.brand img { width: 44px; height: 44px; border-radius: 50%; }
.brand b { color: var(--orange); }
nav { display: flex; align-items: center; gap: clamp(10px, 2.5vw, 28px); font-weight: 500; font-size: 15px; }
nav a { text-decoration: none; opacity: .85; }
nav a:hover { opacity: 1; color: var(--orange-2); }
.lang {
  border: 1px solid var(--line); background: var(--panel); color: var(--text); border-radius: 999px;
  padding: 6px 14px; font: 700 13px "Be Vietnam Pro", sans-serif; cursor: pointer;
}
.lang:hover { border-color: var(--orange); }

main section { padding: clamp(56px, 9vw, 110px) clamp(16px, 6vw, 80px); max-width: 1160px; margin: 0 auto; }

.hero { display: grid; grid-template-columns: 1.15fr .85fr; gap: 40px; align-items: center; }
.kicker { color: var(--orange-2); font-weight: 700; letter-spacing: .08em; text-transform: uppercase; font-size: 13px; margin: 0 0 14px; }
.hero h1 { font-size: clamp(42px, 7vw, 76px); }
.lead { color: var(--muted); font-size: clamp(17px, 2vw, 20px); max-width: 520px; margin: 20px 0 32px; }
.btn {
  display: inline-block; background: var(--orange); color: #2a1200; font-weight: 700; text-decoration: none;
  padding: 14px 28px; border-radius: 999px; box-shadow: 0 10px 30px rgba(255, 122, 26, .35); transition: transform .15s;
}
.btn:hover { transform: translateY(-2px); }
.hero-art { position: relative; display: grid; place-items: center; }
.hero-art img { position: relative; width: min(320px, 70vw); height: auto; aspect-ratio: 1; object-fit: cover; border-radius: 50%; border: 6px solid #fff; animation: float 5s ease-in-out infinite; }
.halo { position: absolute; width: min(420px, 90vw); aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, rgba(255,122,26,.45), rgba(255,122,26,0) 65%); }
@keyframes float { 50% { transform: translateY(-12px) rotate(-2deg); } }

.game { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: clamp(20px, 4vw, 40px); }
.game-head { display: flex; align-items: center; gap: 20px; }
.game-icon { width: 104px; height: 104px; border-radius: 24px; }
.game h3 { font-size: 40px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 6px 0 0; }
.tags > span { background: #262a38; border-radius: 999px; padding: 3px 12px; font-size: 13px; color: var(--muted); }
.game-desc { max-width: 720px; margin: 22px 0 28px; }
.shots { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(10px, 2vw, 22px); }
.shots img { width: 100%; aspect-ratio: 9 / 16; object-fit: cover; object-position: top; border-radius: 18px; border: 1px solid var(--line); }
.stores { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.store { padding: 10px 18px; border-radius: 12px; font-weight: 700; font-size: 14px; }
.store.soon { background: #262a38; color: var(--muted); }
.store.link { border: 1px solid var(--orange); color: var(--orange-2); text-decoration: none; }

.about { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.about p { color: var(--muted); font-size: 18px; margin: 0; }
.values { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.values li { background: var(--panel); border: 1px solid var(--line); border-left: 4px solid var(--orange); border-radius: 14px; padding: 16px 20px; color: var(--muted); }
.values b { display: block; color: var(--text); font: 800 21px "Baloo 2", sans-serif; }

.contact { text-align: center; }
.contact p { color: var(--muted); margin: 0; }
.mail { margin-top: 14px !important; font: 800 clamp(22px, 4vw, 34px) "Baloo 2", sans-serif; }
.mail a { color: var(--orange-2); text-decoration: none; }

footer { border-top: 1px solid var(--line); text-align: center; padding: 28px 16px; color: var(--muted); font-size: 14px; }
footer p { margin: 4px 0; }

/* privacy page */
.doc { max-width: 820px; margin: 0 auto; padding: clamp(40px, 7vw, 80px) clamp(16px, 5vw, 32px); }
.doc h1 { font-size: clamp(34px, 6vw, 52px); margin-bottom: 8px; }
.doc h2 { font-size: 26px; margin: 34px 0 8px; }
.doc p, .doc li { color: var(--muted); }
.doc .date { color: var(--orange-2); font-weight: 700; }

@media (max-width: 760px) {
  .hero, .about { grid-template-columns: 1fr; }
  .hero-art { order: -1; }
  nav a { display: none; }
  .game h3 { font-size: 32px; }
  .game-icon { width: 80px; height: 80px; border-radius: 18px; }
}