:root{
  --bg:#f7f3ec; --surface:#fffdf9; --fg:#231f1b; --muted:#6e6459; --line:#e3d9cb;
  --accent:#b8231c; --accent-ink:#fff; --gold:#c9931f; --gold-soft:#fbf1d6;
  --ok:#2d7a4f; --result-bg:#1f1a17; --result-fg:#fbf3e4;
  --display:"Bricolage Grotesque","Segoe UI",system-ui,sans-serif;
  --body:"IBM Plex Sans","Segoe UI",system-ui,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root{
  --bg:#17130f; --surface:#211c17; --fg:#f1e9dc; --muted:#a3968a; --line:#3a3129;
  --accent:#e04a3f; --gold:#e2b24a; --gold-soft:#3a2f16; --ok:#5fc08a; --result-bg:#0f0c0a; color-scheme:dark}}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--fg);font-family:var(--body);font-size:16px;line-height:1.55;margin:0}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3{font-family:var(--display);text-wrap:balance;margin:0;letter-spacing:-.02em}
h1{font-size:clamp(28px,4.5vw,40px);font-weight:800}
h2{font-size:24px;font-weight:700}
h3,.h3{font-size:18px;font-weight:700}
a{color:var(--accent)}
code{font-family:var(--mono);font-size:.92em}
.mono{font-family:var(--mono)}
.wrap{max-width:980px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}

.top{position:sticky;top:0;z-index:9;background:var(--bg);border-bottom:1px solid var(--line)}
.top .wrap{display:flex;align-items:center;gap:20px;padding-block:12px;flex-wrap:wrap}
.brand{font-family:var(--display);font-weight:800;font-size:22px;display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--fg)}
.brand .dot{width:12px;height:12px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 3px var(--gold-soft)}
.brand .vip{color:var(--accent)}
nav{display:flex;gap:4px;overflow-x:auto;flex:1;min-width:0;scrollbar-width:none}
nav::-webkit-scrollbar{display:none}
nav a{white-space:nowrap;padding:7px 12px;border-radius:999px;text-decoration:none;color:var(--muted);font-weight:500;font-size:14px}
nav a:hover{color:var(--fg)}
nav a.on{background:var(--fg);color:var(--bg)}
:is(a,button,input,select,textarea):focus-visible{outline:2px solid var(--gold);outline-offset:2px}

main .wrap{padding-block:28px 56px;display:grid;gap:22px}
.lead{color:var(--muted);max-width:66ch;margin:0;font-size:17px}

.result{background:var(--result-bg);color:var(--result-fg);border-radius:18px;padding:28px 24px;min-height:150px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;text-align:center;overflow:hidden}
.result .big{font-family:var(--mono);font-weight:600;font-size:clamp(40px,9vw,88px);line-height:1;letter-spacing:-.02em;font-variant-numeric:tabular-nums;word-break:break-all}
.result .big.pw{font-size:clamp(20px,4.5vw,40px)}
.result .list{font-family:var(--mono);font-size:clamp(20px,4vw,30px);line-height:1.4;display:flex;flex-wrap:wrap;gap:8px 18px;justify-content:center;max-width:100%}
.result .list.col{flex-direction:column;align-items:flex-start;font-size:clamp(16px,3vw,22px)}
.result .sub{font-size:13px;color:#c9bca8;letter-spacing:.06em;text-transform:uppercase}
.result .hint{color:#8d8071;font-size:15px;font-family:var(--body)}
.result.flash :is(.big,.list,.coins,.dice){animation:pop .35s ease-out}
@keyframes pop{from{transform:scale(.92);opacity:.4}to{transform:scale(1);opacity:1}}
@media (prefers-reduced-motion:reduce){.result.flash *{animation:none}}

.panel{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px}
.ctrl{display:grid;gap:14px}
.row{display:flex;gap:14px;flex-wrap:wrap;align-items:flex-start}
.field{display:grid;gap:5px;flex:1 1 140px;min-width:0}
.field.grow{flex:3 1 220px}
.field.short{flex:0 1 140px}
label,.lbl{font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
input[type=number],input[type=text],select,textarea{width:100%;padding:9px 11px;border:1px solid var(--line);border-radius:8px;background:var(--bg);font-variant-numeric:tabular-nums}
input[type=number]{font-family:var(--mono)}
textarea{min-height:130px;resize:vertical;font-family:var(--mono);font-size:14px}
.chk{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--fg);text-transform:none;letter-spacing:0;font-weight:500}
.chk input{width:16px;height:16px;accent-color:var(--accent)}
.chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{padding:5px 11px;border:1px solid var(--line);background:var(--bg);border-radius:999px;font-size:13px;cursor:pointer}
.chip.on{background:var(--gold-soft);border-color:var(--gold);font-weight:600}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;border-radius:10px;border:1px solid transparent;background:var(--accent);color:var(--accent-ink);font-weight:600;cursor:pointer;font-family:var(--display);font-size:16px}
.btn:hover{filter:brightness(1.08)}
.btn:active{transform:translateY(1px)}
.btn.ghost{background:transparent;color:var(--fg);border-color:var(--line)}
.btn.sm{padding:7px 12px;font-size:14px;font-family:var(--body)}
.actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.actions .more{margin-left:auto;font-size:14px;font-weight:600}
.copied{font-size:13px;color:var(--ok);font-weight:600}

.hist{display:grid;gap:8px}
.hist .h3{font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);font-family:var(--body)}
.hist ol{margin:0;padding:0;list-style:none;display:grid;gap:4px;font-family:var(--mono);font-size:13px;color:var(--muted)}
.hist ol:empty::before{content:"Chưa có kết quả nào trong phiên này.";font-family:var(--body)}
.hist li{display:flex;gap:12px;justify-content:space-between;border-bottom:1px dashed var(--line);padding:4px 0;min-width:0}
.hist li span:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.hist li time{flex:none}

.coins{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.coin{width:72px;height:72px;border-radius:50%;display:grid;place-items:center;font-family:var(--display);font-weight:800;font-size:18px;color:#3a2c0a;background:radial-gradient(circle at 35% 30%,#ffe9a6,#c9931f 60%,#8a5f10);box-shadow:inset 0 0 0 4px rgba(0,0,0,.18),0 4px 10px rgba(0,0,0,.4)}
.coin.t{background:radial-gradient(circle at 35% 30%,#f6f6f6,#b9bcc4 60%,#5e626c);color:#1d1f24}
.dice{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.die{width:72px;height:72px;border-radius:14px;background:#fbf3e4;color:#231f1b;display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);padding:10px;box-shadow:inset 0 -5px 0 rgba(0,0,0,.18),0 4px 10px rgba(0,0,0,.4)}
.die i{width:12px;height:12px;border-radius:50%;background:#b8231c;place-self:center;visibility:hidden}
.die.n{font-family:var(--mono);font-weight:600;font-size:28px;display:grid;place-items:center;padding:0}

.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}
.stat{border:1px solid var(--line);border-radius:10px;padding:10px 12px;background:var(--bg);min-width:0}
.stat b{display:block;font-family:var(--mono);font-size:22px;font-weight:600;font-variant-numeric:tabular-nums;word-break:break-all}
.stat small{color:var(--muted);font-size:12px;letter-spacing:.04em;text-transform:uppercase}
.formula{font-family:var(--mono);font-size:13px;color:var(--muted);background:var(--bg);border:1px dashed var(--line);border-radius:8px;padding:8px 10px;overflow-x:auto;white-space:nowrap}
.tabs{display:flex;gap:4px;flex-wrap:wrap;border-bottom:1px solid var(--line);padding-bottom:10px}
.tabs button{background:none;border:0;padding:6px 10px;border-radius:6px;color:var(--muted);cursor:pointer;font-weight:500}
.tabs button.on{background:var(--gold-soft);color:var(--fg);font-weight:600}
.bars{display:grid;gap:4px;font-family:var(--mono);font-size:12px}
.bar{display:grid;grid-template-columns:3.5ch 1fr 8ch;gap:8px;align-items:center}
.bar div{height:14px;background:var(--line);border-radius:3px;overflow:hidden}
.bar div i{display:block;height:100%;background:var(--accent)}
.bar.hi div i{background:var(--gold)}
.bar span:last-child{text-align:right;color:var(--muted)}
.strength{height:6px;border-radius:3px;background:var(--line);overflow:hidden}
.strength i{display:block;height:100%;background:var(--ok);width:0;transition:width .3s}

.wheel-wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px;align-items:stretch}
@media (max-width:720px){.wheel-wrap{grid-template-columns:1fr}}
.wheel-box{position:relative;max-width:520px;width:100%;margin:0 auto;aspect-ratio:1}
.wheel-box canvas{width:100%;height:100%;display:block;border-radius:50%;box-shadow:0 8px 30px rgba(0,0,0,.25)}
.pointer{position:absolute;top:-6px;left:50%;transform:translateX(-50%);width:0;height:0;border-left:16px solid transparent;border-right:16px solid transparent;border-top:34px solid var(--fg);filter:drop-shadow(0 2px 2px rgba(0,0,0,.35));z-index:2}
.result .big.vq,.result .big.an{font-family:var(--display);font-weight:800;font-size:clamp(26px,5vw,44px);line-height:1.15;word-break:normal;overflow-wrap:anywhere}
.dt summary{cursor:pointer;font-weight:600;font-size:14px;color:var(--muted)}
.dt[open] summary{margin-bottom:10px}

/* Quảng cáo: tách biệt khỏi nút chức năng, luôn có nhãn */
.ad{display:grid;gap:6px;padding-block:8px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.ad-lbl{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.ad ins{min-height:90px}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px}
.card{display:grid;gap:6px;padding:16px;border:1px solid var(--line);border-radius:12px;background:var(--surface);text-decoration:none;color:var(--fg)}
.card:hover{border-color:var(--gold)}
.card p{margin:0;color:var(--muted);font-size:14px}

.prose{max-width:70ch;display:grid;gap:14px}
.prose h2{margin-top:10px}
.prose p,.prose ul,.prose ol{margin:0}
.prose ul,.prose ol{padding-left:22px;display:grid;gap:6px}

footer{border-top:1px solid var(--line);color:var(--muted);font-size:14px}
footer .wrap{padding-block:28px 40px;display:grid;gap:20px}
.fcols{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px}
.fcols strong{color:var(--fg);display:block;margin-bottom:8px;font-family:var(--display)}
.fcols p{margin:0}
.fcols ul{list-style:none;margin:0;padding:0;display:grid;gap:4px}
.fcols a{color:var(--muted);text-decoration:none}
.fcols a:hover{color:var(--fg)}
.copy{margin:0;font-size:13px}

.cookie{position:fixed;left:0;right:0;bottom:0;z-index:20;background:var(--surface);border-top:1px solid var(--line);display:flex;gap:14px;align-items:center;flex-wrap:wrap;padding:12px max(16px,env(safe-area-inset-right,0px)) calc(12px + env(safe-area-inset-bottom,0px)) max(16px,env(safe-area-inset-left,0px));font-size:14px;box-shadow:0 -6px 24px rgba(0,0,0,.08)}
.cookie p{margin:0;flex:1 1 300px}
[hidden]{display:none!important}