/* Giao diện sáng, tông xanh baby blue. Chữ xanh navy đậm để dễ đọc trên nền nhạt. */
:root {
  --sky: #89cff0;          /* baby blue chủ đạo */
  --sky-soft: #d6eefb;     /* nền thẻ nhấn nhẹ */
  --sky-pale: #eef8fe;     /* nền trang */
  --bg: #f4fbff;
  --panel: #ffffff;
  --line: #c4e3f6;
  --text: #16324a;         /* tương phản ~12:1 trên nền trắng */
  --muted: #4b6b85;        /* ~5.5:1 */
  --blue: #1b6fbd;         /* nút, chữ nhấn: ~5.3:1 với chữ trắng */
  --blue-dark: #155a9c;
  --sun: #ffc94d;          /* vạch chọn, điểm nhấn ấm */
  --coral: #ff8f7d;        /* ống hút */
  --r-thuong: #6d8aa3;
  --r-ngon: #17937a;
  --r-xin: #1b6fbd;
  --r-dinh: #7c4ddb;
  --r-huyen-thoai: #c77700;
  --shadow: 0 6px 18px -8px rgba(27, 111, 189, .35);
  --card-w: 148px;
  --card-gap: 12px;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: linear-gradient(180deg, #cfeaff 0, var(--sky-pale) 260px, var(--bg) 520px) no-repeat, var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
h2 { font-size: 1.15rem; margin: 0; }
small { color: var(--muted); font-weight: 400; }
main, .top, footer { max-width: 980px; margin: 0 auto; padding: 0 16px; }

.top { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-top: 18px; padding-bottom: 14px; }
.brand { display: flex; flex-direction: column; }
.brand-name { font-size: 1.5rem; font-weight: 800; letter-spacing: .01em; color: var(--blue-dark); }
.brand-tag { font-size: .78rem; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); }
.spin-total { font-size: .9rem; color: var(--muted); background: var(--panel); border: 1px solid var(--line); border-radius: 99px; padding: 6px 14px; }
.spin-total b { color: var(--blue); font-variant-numeric: tabular-nums; }

.level { display: flex; gap: 14px; align-items: center; background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 12px 14px; box-shadow: var(--shadow); }
.level-badge { width: 56px; height: 56px; flex: none; border-radius: 16px; background: linear-gradient(160deg, var(--sky), #5fb4e6); color: #0d2f4d; display: grid; place-content: center; text-align: center; line-height: 1; }
.level-badge span { font-size: .6rem; letter-spacing: .14em; font-weight: 700; }
.level-badge b { font-size: 1.5rem; }
.level-body { flex: 1; min-width: 0; }
.level-row { display: flex; justify-content: space-between; gap: 8px; font-size: .95rem; }
.level-row span { color: var(--muted); font-variant-numeric: tabular-nums; }
.bar { height: 8px; background: var(--sky-soft); border-radius: 99px; overflow: hidden; margin: 6px 0 4px; }
.bar i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, #5fb4e6, var(--blue)); border-radius: 99px; transition: width .6s ease; }
.level-hint { font-size: .8rem; color: var(--muted); }

.geo { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; padding: 8px 12px; border-radius: 12px; background: var(--sky-soft); border: 1px solid var(--line); color: var(--blue-dark); font-size: .86rem; }
.geo svg { flex: none; }
.geo span { flex: 1; min-width: 180px; }
.geo button { border: 0; border-radius: 99px; background: var(--blue); color: #fff; font: inherit; font-weight: 700; padding: 6px 14px; min-height: 36px; cursor: pointer; }
.geo-ok { background: #e3f6ee; border-color: #b5e2d0; color: #0f6b57; }
.geo-denied, .geo-error, .geo-insecure, .geo-unsupported { background: #fff6e0; border-color: #f1dca4; color: #7a5200; }
.near { font-size: .86rem; color: var(--text); margin-top: 8px; }
.art-note a { color: var(--blue); }

.reel-wrap { margin-top: 16px; }
.reel { position: relative; overflow: hidden; background: linear-gradient(180deg, #dff2fd, #c9e8fa); border: 1px solid #a9d6f1; border-radius: 18px; padding: 16px 0; box-shadow: inset 0 2px 10px rgba(27, 111, 189, .12); }
.reel::before, .reel::after { content: ""; position: absolute; top: 0; bottom: 0; width: 64px; z-index: 2; pointer-events: none; }
.reel::before { left: 0; background: linear-gradient(90deg, #cfeafb, rgba(207, 234, 251, 0)); }
.reel::after { right: 0; background: linear-gradient(270deg, #cfeafb, rgba(207, 234, 251, 0)); }
.marker { position: absolute; top: 6px; bottom: 6px; left: 50%; width: 3px; margin-left: -1.5px; background: var(--blue); border-radius: 3px; z-index: 3; }
.marker::before, .marker::after { content: ""; position: absolute; left: -6.5px; border: 8px solid transparent; }
.marker::before { top: -3px; border-top-color: var(--blue); }
.marker::after { bottom: -3px; border-bottom-color: var(--blue); }
.strip { display: flex; gap: var(--card-gap); will-change: transform; padding: 0 16px; }

.card { width: var(--card-w); flex: none; background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 10px; position: relative; }
.card .tier { font-size: .64rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--rc); }
.card .art { height: 92px; display: grid; place-items: center; }
.card .art svg { height: 88px; width: auto; }
.card .name { font-size: .88rem; font-weight: 650; line-height: 1.25; min-height: 2.5em; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card .meta { font-size: .74rem; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.card::after { content: ""; position: absolute; left: 10px; right: 10px; bottom: 0; height: 3px; border-radius: 3px 3px 0 0; background: var(--rc); }
.card.win { border-color: var(--rc); box-shadow: 0 0 0 2px var(--rc), 0 10px 24px -10px var(--rc); }
.r-thuong { --rc: var(--r-thuong); } .r-ngon { --rc: var(--r-ngon); } .r-xin { --rc: var(--r-xin); } .r-dinh { --rc: var(--r-dinh); } .r-huyen-thoai { --rc: var(--r-huyen-thoai); }

.controls { margin-top: 16px; display: grid; gap: 10px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { border: 1px solid var(--line); background: var(--panel); color: var(--text); padding: 8px 14px; border-radius: 99px; font: inherit; font-size: .9rem; cursor: pointer; min-height: 40px; }
.chip:hover { border-color: var(--sky); background: var(--sky-pale); }
.chip[aria-pressed="true"] { background: var(--blue); border-color: var(--blue); color: #fff; font-weight: 700; }
.brands { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 10px 12px; }
.brands summary { cursor: pointer; font-size: .92rem; color: var(--muted); }
.brands summary span { color: var(--text); }
.brands .chips { margin-top: 10px; }
.action { display: flex; gap: 10px; align-items: stretch; }
.budget { display: flex; flex-direction: column; font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); gap: 4px; }
.budget select { height: 54px; min-width: 150px; background: var(--panel); color: var(--text); border: 1px solid var(--line); border-radius: 14px; padding: 0 12px; font: inherit; font-size: 1rem; }
.spin { flex: 1; align-self: flex-end; height: 54px; border: 0; border-radius: 14px; background: linear-gradient(180deg, #2a86d6, var(--blue)); color: #fff; font: inherit; font-weight: 800; letter-spacing: .06em; font-size: 1.02rem; cursor: pointer; box-shadow: 0 8px 18px -8px rgba(27, 111, 189, .7); }
.spin:hover { background: linear-gradient(180deg, #2a86d6, var(--blue-dark)); }
.spin:disabled { opacity: .65; cursor: wait; box-shadow: none; }
.note { margin: 0; font-size: .84rem; color: var(--muted); }

.result { margin-top: 16px; background: var(--panel); border: 2px solid var(--rc, var(--line)); border-radius: 18px; padding: 16px; display: grid; grid-template-columns: 120px 1fr; gap: 14px; align-items: center; box-shadow: var(--shadow); }
.result[hidden] { display: none; }
.result .art { background: var(--sky-pale); border-radius: 14px; display: grid; place-items: center; padding: 8px; }
.result .art svg { width: 96px; height: auto; }
.result .tier { font-size: .72rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--rc); }
.result h3 { margin: 2px 0 4px; font-size: 1.4rem; line-height: 1.2; }
.result .where { color: var(--muted); font-size: .94rem; }
.result .where a { color: var(--blue); }
.result .price { font-size: 1.2rem; font-weight: 800; color: var(--blue-dark); margin-top: 6px; }
.result .gain { font-size: .84rem; color: var(--r-ngon); margin-top: 4px; font-weight: 600; }

.see { display: inline-block; margin-top: 10px; padding: 9px 16px; border-radius: 99px; background: var(--sky-soft); color: var(--blue-dark); font-weight: 700; font-size: .9rem; text-decoration: none; border: 1px solid var(--sky); min-height: 40px; }
.see:hover { background: var(--sky); }
.art-note { font-size: .74rem; color: var(--muted); margin-top: 6px; }
.see-sm { display: inline-block; margin-top: 4px; font-size: .76rem; color: var(--blue); text-decoration: none; padding: 4px 0; }
.see-sm:hover { text-decoration: underline; }

.history { margin-top: 18px; }
.history ol { margin: 8px 0 0; padding: 0; list-style: none; display: grid; gap: 6px; }
.history li { display: flex; justify-content: space-between; gap: 10px; background: var(--panel); border: 1px solid var(--line); border-left: 4px solid var(--rc); border-radius: 10px; padding: 8px 12px; font-size: .9rem; }
.history li span:last-child { color: var(--muted); white-space: nowrap; }

.catalog { margin-top: 26px; }
.catalog-head { display: flex; gap: 12px; align-items: center; justify-content: space-between; flex-wrap: wrap; margin-bottom: 12px; }
.catalog-head input { flex: 1; min-width: 200px; max-width: 340px; height: 44px; background: var(--panel); border: 1px solid var(--line); color: var(--text); border-radius: 12px; padding: 0 12px; font: inherit; }
.catalog-head input::placeholder { color: #6f8ba3; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
.grid .card { width: auto; box-shadow: 0 3px 10px -8px rgba(27, 111, 189, .5); }
.grid .price { font-size: .88rem; font-weight: 800; color: var(--blue-dark); margin-top: 2px; }
.more { display: block; margin: 16px auto 0; background: var(--panel); color: var(--blue); border: 1px solid var(--sky); border-radius: 99px; padding: 10px 24px; font: inherit; font-weight: 600; cursor: pointer; }
.more[hidden] { display: none; }

footer { margin-top: 32px; padding-bottom: 32px; color: var(--muted); font-size: .8rem; }
footer a { color: var(--blue); }

:focus-visible { outline: 3px solid var(--sun); outline-offset: 2px; }
@media (max-width: 560px) {
  :root { --card-w: 128px; }
  .result { grid-template-columns: 88px 1fr; }
  .result .art svg { width: 68px; }
  .action { flex-wrap: wrap; }
  .budget, .budget select { width: 100%; }
  .spin { flex-basis: 100%; }
}
@media (prefers-reduced-motion: reduce) { .strip { transition-duration: .01s !important; } }