:root {
  --bg: #263238;
  --tint: #2E3D45;
  --mint: #1DE9B6;
  --text: #F2F7F6;
  --text-dim: #A9BFC4;
  --d0: #E53935;
  --d1: #1E88E5;
  --d2: #8E24AA;
  --d3: #EC407A;
  --d7: #FB8C00;
  --d9: #00ACC1;
  --ok: #43A047;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.6; overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.bg-glow {
  position: fixed; inset: 0; z-index: -1;
  background:
    radial-gradient(600px circle at 15% 8%, rgba(29,233,182,0.16), transparent 60%),
    radial-gradient(520px circle at 85% 28%, rgba(30,136,229,0.12), transparent 60%),
    var(--bg);
}

header { display: flex; align-items: center; justify-content: space-between; max-width: 1100px; margin: 0 auto; padding: 20px 24px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.05rem; }
.brand img { width: 34px; height: 34px; border-radius: 9px; }
header nav a { color: var(--text-dim); font-size: 0.92rem; margin-left: 22px; white-space: nowrap; }
header nav a:hover, header nav a[aria-current] { color: var(--text); }

.wrap { max-width: 760px; margin: 0 auto; padding: 24px 24px 64px; }
.wide { max-width: 1100px; }
.crumbs { color: var(--text-dim); font-size: 0.88rem; margin-bottom: 18px; }
.crumbs a:hover { color: var(--text); }
.eyebrow {
  display: inline-block; color: var(--mint); background: rgba(29,233,182,0.12); border: 1px solid rgba(29,233,182,0.3);
  padding: 4px 12px; border-radius: 999px; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 14px;
}
h1 { font-size: clamp(1.9rem, 4.5vw, 2.6rem); font-weight: 800; line-height: 1.15; letter-spacing: -0.01em; }
h1 .accent { color: var(--mint); }
.lede { color: var(--text-dim); font-size: 1.12rem; margin-top: 14px; }
.meta { color: var(--text-dim); font-size: 0.85rem; margin-top: 14px; display: flex; gap: 14px; flex-wrap: wrap; }
.wrap h2 { font-size: 1.45rem; font-weight: 800; margin: 44px 0 12px; display: flex; align-items: center; gap: 12px; }
.wrap h3 { font-size: 1.08rem; margin: 22px 0 6px; }
.wrap p { margin: 10px 0; }
.wrap ul, .wrap ol { margin: 10px 0 10px 22px; }
.wrap li { margin: 6px 0; }
.wrap strong { color: #fff; }
.dim { color: var(--text-dim); }

.ico { width: 40px; height: 40px; border-radius: 11px; flex: 0 0 40px; display: inline-flex; align-items: center; justify-content: center; background: rgba(29,233,182,0.14); }
.ico svg { width: 21px; height: 21px; stroke: var(--mint); fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

.card { background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); border-radius: 18px; padding: 22px; margin: 18px 0; }
.callout { background: linear-gradient(135deg, rgba(29,233,182,0.12), rgba(30,136,229,0.08)); border: 1px solid rgba(29,233,182,0.28); border-radius: 16px; padding: 16px 18px; margin: 20px 0; }
.callout b { color: var(--mint); }

/* Clue rows */
.clues { display: grid; gap: 10px; margin: 18px 0; }
.clue { display: flex; align-items: center; gap: 14px; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); border-radius: 14px; padding: 10px 14px; }
.digits { display: flex; gap: 6px; flex: 0 0 auto; }
.d { width: 36px; height: 40px; border-radius: 9px; display: grid; place-items: center; font-weight: 800; font-size: 1.15rem; color: #fff; background: rgba(255,255,255,0.12); font-variant-numeric: tabular-nums; }
.d.out { opacity: .28; text-decoration: line-through; }
.d.in { background: var(--ok); }
.d.here { background: var(--mint); color: #0B2A24; }
.clue .say { font-size: 0.92rem; color: var(--text-dim); }
.clue .say b { color: var(--text); font-weight: 700; }
.pill { display: inline-block; font-size: 0.72rem; font-weight: 800; padding: 2px 8px; border-radius: 999px; margin-right: 6px; vertical-align: 1px; }
.p-w { background: rgba(29,233,182,0.18); color: var(--mint); }
.p-1 { background: rgba(251,140,0,0.2); color: #FFB74D; }
.p-2 { background: rgba(142,36,170,0.28); color: #CE93D8; }
.p-3 { background: rgba(236,64,122,0.22); color: #F48FB1; }
.p-0 { background: rgba(229,57,53,0.22); color: #EF9A9A; }
@media (max-width: 520px) {
  .clue { flex-direction: column; align-items: flex-start; gap: 8px; }
  .d { width: 32px; height: 36px; font-size: 1rem; }
}

.answer { display: flex; gap: 8px; justify-content: center; margin: 20px 0; }
.answer .d { width: 54px; height: 62px; font-size: 1.7rem; background: var(--mint); color: #0B2A24; box-shadow: 0 10px 30px rgba(29,233,182,0.3); }

.steps { counter-reset: s; list-style: none; margin: 16px 0 !important; }
.steps > li { counter-increment: s; position: relative; padding: 16px 18px 16px 62px; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); border-radius: 16px; margin: 12px 0; }
.steps > li::before { content: counter(s); position: absolute; left: 16px; top: 15px; width: 32px; height: 32px; border-radius: 9px; background: rgba(255,255,255,0.9); color: var(--d1); display: grid; place-items: center; font-weight: 800; }
.steps > li:nth-child(3n+2)::before { color: var(--d7); }
.steps > li:nth-child(3n)::before { color: var(--d2); }
.steps .clues { margin: 10px 0 2px; }

.board { display: grid; grid-template-columns: repeat(10, 1fr); gap: 6px; margin: 14px 0; }
.board .d { width: auto; }

table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 0.94rem; }
th, td { text-align: left; padding: 11px 12px; border-bottom: 1px solid rgba(255,255,255,0.08); }
th { color: var(--text-dim); font-weight: 600; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.04em; }
td.num { color: var(--mint); font-weight: 800; white-space: nowrap; }
.table-wrap { overflow-x: auto; }

.shots { display: flex; gap: 16px; justify-content: center; margin: 22px 0; }
.shots img { width: min(220px, 44%); border-radius: 20px; box-shadow: 0 20px 40px rgba(0,0,0,0.45), 0 0 0 1px rgba(255,255,255,0.1); }

.ach { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; margin: 16px 0; }
.ach .card { margin: 0; padding: 16px; display: flex; gap: 14px; align-items: flex-start; }
.ach h3 { margin: 0 0 2px; font-size: 1rem; }
.ach p { margin: 0; font-size: 0.88rem; color: var(--text-dim); }
.ach .pts { margin-left: auto; color: var(--mint); font-weight: 800; font-size: 0.85rem; white-space: nowrap; }
@media (max-width: 620px) { .ach { grid-template-columns: 1fr; } }

/* Guide index cards */
.guide-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 36px; }
@media (max-width: 720px) { .guide-grid { grid-template-columns: 1fr; } }
.guide-card { display: block; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08); border-radius: 20px; padding: 24px; transition: transform .15s, border-color .15s; }
.guide-card:hover { transform: translateY(-3px); border-color: rgba(29,233,182,0.4); }
.guide-card .digits { margin-bottom: 16px; }
.guide-card h2, .guide-card h3 { font-size: 1.15rem; margin: 6px 0; }
.guide-card p { color: var(--text-dim); font-size: 0.93rem; margin: 0; }
.guide-card .go { display: inline-block; margin-top: 12px; color: var(--mint); font-weight: 700; font-size: 0.9rem; }

.cta-band { text-align: center; background: linear-gradient(135deg, rgba(29,233,182,0.14), rgba(30,136,229,0.1)); border: 1px solid rgba(29,233,182,0.25); border-radius: 24px; padding: 40px 22px; margin-top: 52px; }
.cta-band img.icon { width: 64px; height: 64px; border-radius: 16px; margin: 0 auto 12px; }
.cta-band h2 { justify-content: center; margin: 0 0 8px; }
.cta-band p { color: var(--text-dim); }
.badges { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 18px; }
.badges img { height: 44px; width: auto; border-radius: 8px; }
.more { margin-top: 44px; }

footer { border-top: 1px solid rgba(255,255,255,0.08); padding: 28px 24px; }
.footer-inner { max-width: 1100px; margin: 0 auto; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 14px; color: var(--text-dim); font-size: 0.86rem; }
.footer-inner nav a { margin-left: 18px; }
.footer-inner nav a:first-child { margin-left: 0; }
.footer-inner a:hover { color: var(--text); }

.header-right { display: flex; align-items: center; gap: 18px; }
select.lang {
  appearance: none; -webkit-appearance: none; font: inherit; font-size: 0.85rem; font-weight: 600; color: var(--text);
  background: rgba(255,255,255,0.07) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23A9BFC4' stroke-width='2' fill='none'/%3E%3C/svg%3E") no-repeat right 11px center;
  border: 1px solid rgba(255,255,255,0.18); border-radius: 10px; padding: 7px 30px 7px 12px; cursor: pointer;
}
select.lang option { color: #000; }
@media (max-width: 480px) { header nav { display: none; } }