:root {
  --bg: #141a3a;
  --bg-2: #1c2350;
  --panel: #232b5e;
  --text: #eef1ff;
  --muted: #aab2d9;
  --yellow: #ffc83d;
  --orange: #ff8a2b;
  --green: #35c759;
  --blue: #34a7f0;
  --purple: #b04ce0;
  --red: #ef3b3b;
  --wood-1: #5a3420;
  --wood-2: #7a4a2c;
  --wood-3: #9a6238;
  --radius: 18px;
  --shadow: 0 20px 50px rgba(0, 0, 0, .35);
  --font-display: "Baloo 2", system-ui, sans-serif;
  --font-body: "Be Vietnam Pro", system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 var(--font-body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.1; margin: 0 0 .5em; }
p { margin: 0 0 1em; }

.wrap { width: min(1160px, 100% - 32px); margin-inline: auto; }

.skip { position: absolute; left: -999px; top: 8px; background: var(--yellow); color: #000; padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(20, 26, 58, .82);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, .06);
}
.nav__inner { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand__mark { display: grid; grid-template-columns: repeat(2, 12px); gap: 3px; }
.brand__mark i { width: 12px; height: 12px; border-radius: 3px; box-shadow: inset 0 -3px 0 rgba(0, 0, 0, .25); }
.brand__mark i:nth-child(1) { background: var(--yellow); }
.brand__mark i:nth-child(2) { background: var(--green); }
.brand__mark i:nth-child(3) { background: var(--blue); }
.brand__mark i:nth-child(4) { background: var(--purple); }
.brand__name { font: 700 1.35rem var(--font-display); letter-spacing: .2px; }
.brand__name b { color: var(--yellow); font-weight: 800; }
.nav__links { display: flex; gap: 26px; margin-left: auto; }
.nav__links a { text-decoration: none; color: var(--muted); font-weight: 500; font-size: .95rem; transition: color .2s; }
.nav__links a:hover { color: var(--text); }
.lang {
  display: flex; border: 1px solid rgba(255, 255, 255, .18); border-radius: 999px; padding: 3px;
  background: none; color: var(--muted); cursor: pointer; font: 600 .78rem var(--font-body);
}
.lang span { padding: 3px 9px; border-radius: 999px; transition: background .2s, color .2s; }
html[lang="en"] .lang [data-lang="en"],
html[lang="vi"] .lang [data-lang="vi"] { background: var(--yellow); color: #1a1a1a; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; padding: 14px 28px; border-radius: 14px; text-decoration: none;
  font: 700 1.05rem var(--font-display); transition: transform .15s, box-shadow .15s;
}
.btn--primary { background: linear-gradient(180deg, #ffd65a, var(--orange)); color: #2a1600; box-shadow: 0 6px 0 #c05f12, 0 14px 30px rgba(255, 138, 43, .35); }
.btn--primary:hover { transform: translateY(-2px); }
.btn--primary:active { transform: translateY(3px); box-shadow: 0 2px 0 #c05f12; }

.play-btn {
  display: inline-flex; align-items: center; gap: 12px; margin-top: 8px;
  background: #000; color: #fff; text-decoration: none; padding: 10px 22px 10px 16px;
  border-radius: 12px; border: 1px solid rgba(255, 255, 255, .25);
  transition: transform .15s, box-shadow .15s;
}
.play-btn:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(0, 0, 0, .4); }
.play-btn svg { width: 30px; height: 30px; }
.play-btn span { display: flex; flex-direction: column; font: 600 1.3rem/1.05 var(--font-body); }
.play-btn small { font-size: .62rem; letter-spacing: .08em; font-weight: 500; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background: radial-gradient(1200px 600px at 80% 0%, #2c3680 0%, transparent 60%), var(--bg);
  padding: 72px 0 96px;
}
.hero__rain { position: absolute; inset: 0; pointer-events: none; }
.hero__rain i {
  position: absolute; top: -60px; border-radius: 6px; opacity: .14;
  box-shadow: inset 0 -5px 0 rgba(0, 0, 0, .3);
  animation: fall linear infinite;
}
@keyframes fall { to { transform: translateY(120vh) rotate(var(--rot, 0deg)); } }

.hero__inner { position: relative; display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.eyebrow { display: inline-block; color: var(--yellow); font-weight: 600; font-size: .85rem; letter-spacing: .12em; text-transform: uppercase; margin-bottom: 14px; }
.hero h1 { font-size: clamp(2.6rem, 6vw, 4.4rem); font-weight: 800; }
.hero h1 span { background: linear-gradient(90deg, var(--yellow), var(--orange)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { font-size: 1.15rem; color: var(--muted); max-width: 34em; margin-bottom: 30px; }
.hero__cta { margin-bottom: 42px; }

.stats { display: flex; gap: 36px; margin: 0; flex-wrap: wrap; }
.stats div { display: flex; flex-direction: column-reverse; }
.stats dt { font: 800 2rem/1 var(--font-display); color: var(--text); }
.stats dd { margin: 4px 0 0; color: var(--muted); font-size: .9rem; }

.hero__phones { position: relative; height: 560px; }
.phone {
  position: absolute; width: 270px; border-radius: 30px; box-shadow: var(--shadow);
  border: 8px solid #0b0f26;
}
.phone--front { right: 40px; top: 0; transform: rotate(4deg); animation: float 6s ease-in-out infinite; }
.phone--back { right: 230px; top: 60px; transform: rotate(-8deg); opacity: .92; animation: float 6s ease-in-out -3s infinite; }
@keyframes float { 50% { translate: 0 -14px; } }

/* ---------- Sections ---------- */
.section-title { font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 800; }
.section-sub { color: var(--muted); font-size: 1.1rem; margin-bottom: 0; }

.games { padding: 96px 0 0; background: var(--bg); }
.games > .wrap { text-align: center; margin-bottom: 56px; }

.game { padding: 80px 0; position: relative; }
.game__inner { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: center; }
.game--wood .game__info { order: 2; }
.hero__inner > *, .game__inner > *, .about__inner > * { min-width: 0; }

.game--brick { background: linear-gradient(180deg, var(--bg-2), #252d6a); }
.game--wood {
  background:
    repeating-linear-gradient(92deg, rgba(0, 0, 0, .06) 0 2px, transparent 2px 22px),
    linear-gradient(180deg, var(--wood-1), var(--wood-2));
}
.game--wood .game__tag, .game--wood .meta span { color: #f1d3b3; }
.game--wood .meta li { background: rgba(0, 0, 0, .22); }

.game__head { display: flex; gap: 18px; align-items: center; margin-bottom: 22px; }
.game__icon { width: 88px; height: 88px; border-radius: 22px; box-shadow: 0 10px 24px rgba(0, 0, 0, .35); flex-shrink: 0; }
.game h3 { font-size: clamp(1.6rem, 3vw, 2.1rem); font-weight: 800; margin: 0 0 4px; }
.game__tag { color: var(--muted); margin: 0; }

.meta { display: flex; gap: 10px; list-style: none; padding: 0; margin: 0 0 22px; flex-wrap: wrap; }
.meta li { display: flex; flex-direction: column; background: rgba(255, 255, 255, .07); border-radius: 12px; padding: 8px 16px; min-width: 96px; }
.meta strong { font: 700 1.15rem var(--font-display); }
.meta span { font-size: .8rem; color: var(--muted); }

.checks { list-style: none; padding: 0; margin: 0 0 26px; display: grid; gap: 10px; }
.checks li { position: relative; padding-left: 32px; }
.checks li::before {
  content: ""; position: absolute; left: 0; top: 4px; width: 20px; height: 20px; border-radius: 5px;
  background: var(--green) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 10.5l3.2 3L15 7' fill='none' stroke='white' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/100% no-repeat;
  box-shadow: inset 0 -3px 0 rgba(0, 0, 0, .2);
}
.game--wood .checks li::before { background-color: var(--orange); }

.shots {
  display: flex; gap: 18px; overflow-x: auto; scroll-snap-type: x mandatory;
  padding: 10px 4px 22px; scrollbar-width: thin; scrollbar-color: rgba(255, 255, 255, .25) transparent;
  mask-image: linear-gradient(90deg, #000 85%, transparent);
}
.shots:focus-visible { outline: 2px solid var(--yellow); outline-offset: 4px; border-radius: 12px; }
.shots img {
  width: 230px; flex-shrink: 0; border-radius: 20px; scroll-snap-align: start;
  box-shadow: 0 14px 30px rgba(0, 0, 0, .35); cursor: zoom-in; transition: transform .2s;
}
.shots img:hover { transform: translateY(-4px); }

/* ---------- Why ---------- */
.why { padding: 96px 0; background: var(--bg); }
.why .section-title { text-align: center; margin-bottom: 48px; }
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.card { background: var(--panel); border-radius: var(--radius); padding: 28px 24px; border: 1px solid rgba(255, 255, 255, .06); transition: transform .2s; }
.card:hover { transform: translateY(-4px); }
.card h3 { font-size: 1.35rem; margin-top: 18px; }
.card p { color: var(--muted); margin: 0; font-size: .95rem; }
.card__ico { display: block; width: 48px; height: 48px; position: relative; }
.card__ico::before, .card__ico::after { content: ""; position: absolute; width: 22px; height: 22px; border-radius: 5px; box-shadow: inset 0 -4px 0 rgba(0, 0, 0, .22); }
.card__ico::before { left: 0; top: 0; }
.card__ico::after { left: 24px; top: 24px; }
.c1::before, .c1::after { background: var(--blue); }
.c2::before, .c2::after { background: var(--purple); }
.c3::before, .c3::after { background: var(--green); }
.c4::before, .c4::after { background: var(--yellow); }

/* ---------- About ---------- */
.about { padding: 96px 0; background: linear-gradient(180deg, var(--bg-2), var(--bg)); }
.about__inner { display: grid; grid-template-columns: 1.3fr 1fr; gap: 56px; align-items: center; }
.about p { color: var(--muted); font-size: 1.08rem; }
.about__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; width: 100%; max-width: 320px; margin-left: auto; padding: 14px; background: #0f1430; border-radius: 18px; }
.about__grid i { aspect-ratio: 1; border-radius: 7px; background: rgba(255, 255, 255, .05); box-shadow: inset 0 -4px 0 rgba(0, 0, 0, .25); transition: background .4s; }

/* ---------- Contact ---------- */
.contact { padding: 96px 0; text-align: center; }
.contact p { color: var(--muted); font-size: 1.1rem; margin-bottom: 28px; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid rgba(255, 255, 255, .08); padding: 28px 0; color: var(--muted); font-size: .9rem; }
.footer__inner { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.footer p { margin: 0; }
.footer nav { display: flex; gap: 22px; flex-wrap: wrap; }
.footer a { text-decoration: none; }
.footer a:hover { color: var(--text); }

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 200; background: rgba(5, 8, 22, .9);
  display: grid; place-items: center; padding: 24px; cursor: zoom-out;
  opacity: 0; pointer-events: none; transition: opacity .2s;
}
.lightbox.open { opacity: 1; pointer-events: auto; }
.lightbox img { max-height: 90vh; width: auto; border-radius: 22px; box-shadow: var(--shadow); }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s, transform .7s; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Legal page ---------- */
.legal { padding: 64px 0 96px; }
.legal .wrap { max-width: 780px; }
.legal h1 { font-size: clamp(2rem, 5vw, 2.8rem); }
.legal h2 { font-size: 1.4rem; margin-top: 2em; }
.legal p, .legal li { color: var(--muted); }
.legal a { color: var(--yellow); }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero__inner, .game__inner, .about__inner { grid-template-columns: 1fr; }
  .hero__phones { height: 440px; max-width: 460px; margin: 0 auto; width: 100%; }
  .phone { width: 210px; }
  .phone--front { right: 8%; }
  .phone--back { right: auto; left: 8%; }
  .game--wood .game__info { order: 0; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .about__grid { margin: 0 auto; }
}
@media (max-width: 640px) {
  .nav__links { display: none; }
  .lang { margin-left: auto; }
  .hero { padding: 48px 0 64px; }
  .stats { gap: 24px; }
  .stats dt { font-size: 1.6rem; }
  .hero__phones { height: 360px; }
  .phone { width: 170px; border-width: 6px; border-radius: 24px; }
  .game { padding: 56px 0; }
  .game__icon { width: 68px; height: 68px; border-radius: 18px; }
  .shots img { width: 180px; }
  .cards { grid-template-columns: 1fr; }
  .games, .why, .about, .contact { padding-block: 64px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}