/* FastAI Tarix — "Samarqand koshinlari": lojuvard (lapis) ko'k, feruza va oltin, toshrang fon ustida girih naqsh.
   Sarlavhalar qo'lyozma uslubidagi serif (Alegreya), matn Nunito. Bitta ataylab tanlangan yorug' ko'rinish. */
:root{
  --ground:#F1EDE4;      /* sahifa foni: sarg'ish tosh */
  --ground-2:#E3DCCD;    /* bo'sh joylar, chiziqlar */
  --lapis:#1D3B6E;       /* asosiy rang: sarlavhalar, chegaralar */
  --lapis-2:#2B5397;
  --turq:#1F8A8A;        /* ikkinchi rang: muvaffaqiyat, progress */
  --gold:#D9A23A;        /* asosiy tugma, yulduz */
  --gold-2:#B98322;
  --ink:#1C2433; --ink-soft:#5B6474; --paper:#FFFFFF;
  --bad:#C4473F; --warn:#FBEFD6;
  --display:"Alegreya","Georgia",serif; --body:"Nunito","Segoe UI",system-ui,sans-serif;
  --tabs-h:64px;
  --girih:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='56' viewBox='0 0 56 56'%3E%3Cg fill='none' stroke='%231D3B6E' stroke-opacity='.07' stroke-width='1.4'%3E%3Cpath d='M28 4l7 10 12-2-2 12 10 4-10 4 2 12-12-2-7 10-7-10-12 2 2-12-10-4 10-4-2-12 12 2z'/%3E%3Ccircle cx='28' cy='28' r='6'/%3E%3C/g%3E%3C/svg%3E");
  color-scheme:light;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{background:var(--ground) var(--girih);color:var(--ink);font-family:var(--body);font-size:16px;font-weight:600;line-height:1.5;
  padding-left:max(14px,env(safe-area-inset-left,0px));padding-right:max(14px,env(safe-area-inset-right,0px));-webkit-tap-highlight-color:transparent}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;touch-action:manipulation}
button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--turq);outline-offset:2px}
button:disabled{opacity:.5;cursor:default}
.app{max-width:760px;margin:0 auto;padding-block:14px calc(var(--tabs-h) + 24px + env(safe-area-inset-bottom,0px));display:flex;flex-direction:column;gap:16px;min-height:100%}
.app.notabs{padding-bottom:28px}
.loading{flex:1;display:grid;place-items:center;min-height:60vh;font-family:var(--display);font-weight:800;font-size:1.5rem;color:var(--lapis)}
h1{font-family:var(--display);font-weight:800;font-size:clamp(1.9rem,7vw,2.6rem);line-height:1.05;margin:2px 0 0;text-wrap:balance;color:var(--lapis)}
h2{font-family:var(--display);font-weight:800;font-size:1.35rem;margin:0;line-height:1.15;color:var(--lapis)}
h3{font-family:var(--display);font-weight:800;font-size:1.18rem;margin:0;line-height:1.2;color:var(--lapis)}
p{margin:0}
.eyebrow{font-weight:800;font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--turq)}
.hint{color:var(--ink-soft);font-size:.9rem}
.err{color:var(--bad);font-weight:800;min-height:1.2em}

/* ornament divider: gold eight-point star between hairlines */
.orn{display:flex;align-items:center;gap:10px;color:var(--gold);font-size:.8rem}
.orn::before,.orn::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,transparent,var(--gold),transparent)}

.btn{border:2px solid var(--lapis);background:var(--paper);color:var(--lapis);border-radius:12px;padding:10px 16px;font-weight:800;box-shadow:0 3px 0 var(--lapis);transition:transform .08s,box-shadow .08s}
.btn:active:not(:disabled){transform:translateY(3px);box-shadow:0 0 0 var(--lapis)}
.btn.go{background:var(--gold);border-color:var(--gold-2);color:#2A1D05;box-shadow:0 3px 0 var(--gold-2)}
.btn.ok{background:var(--turq);border-color:#156767;color:var(--paper);box-shadow:0 3px 0 #156767}
.btn.danger{background:#FBE7E5;border-color:var(--bad);color:var(--bad);box-shadow:0 3px 0 var(--bad)}
.btn.ghost{background:transparent;box-shadow:none;border-color:transparent;text-decoration:underline;text-underline-offset:3px}
.btn.sm{padding:6px 12px;font-size:.85rem;border-radius:10px}
.row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.row.end{justify-content:flex-end}
.row.center{justify-content:center}
.panel{background:var(--paper);border:2px solid var(--lapis);border-radius:16px;padding:14px;display:flex;flex-direction:column;gap:12px;min-width:0;box-shadow:0 3px 0 rgba(29,59,110,.15)}
.chip{display:inline-flex;align-items:center;gap:6px;border:1.5px solid var(--lapis);color:var(--lapis);border-radius:999px;padding:2px 10px;font-weight:800;font-size:.76rem;background:var(--paper);white-space:nowrap}
.chip.ok{background:var(--turq);border-color:var(--turq);color:var(--paper)}
.chip.soon{border-style:dashed;color:var(--ink-soft);border-color:var(--ink-soft);background:transparent}
.chip.warn{background:var(--warn);border-color:var(--gold-2);color:#6B4A0C}
.chip.bad{background:#FBE7E5;border-color:var(--bad);color:var(--bad)}
.chip.gold{background:var(--gold);border-color:var(--gold-2);color:#2A1D05}
.bar{height:9px;border-radius:99px;background:var(--ground-2);overflow:hidden;flex:1;min-width:60px}
.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--turq),#3BB3A8)}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-weight:800;font-size:.88rem;color:var(--lapis)}
.input{border:2px solid var(--lapis);border-radius:10px;padding:10px 12px;background:var(--paper);width:100%;font-weight:700}
textarea.input{min-height:90px;resize:vertical}
.empty{color:var(--ink-soft);text-align:center;padding:10px}
.toast{position:fixed;left:50%;bottom:calc(var(--tabs-h) + 20px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--lapis);color:var(--paper);padding:10px 18px;border-radius:999px;font-weight:800;z-index:60;max-width:90vw;text-align:center;border:2px solid var(--gold)}

/* tile-band hero: lapis panel with gold ornament border */
.band{position:relative;background:var(--lapis) var(--girih);color:var(--paper);border-radius:18px;padding:16px 16px 14px;overflow:hidden;
  box-shadow:inset 0 0 0 3px var(--lapis),inset 0 0 0 5px var(--gold)}
.band::after{content:"";position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='56' viewBox='0 0 56 56'%3E%3Cg fill='none' stroke='%23FFFFFF' stroke-opacity='.08' stroke-width='1.4'%3E%3Cpath d='M28 4l7 10 12-2-2 12 10 4-10 4 2 12-12-2-7 10-7-10-12 2 2-12-10-4 10-4-2-12 12 2z'/%3E%3C/g%3E%3C/svg%3E");pointer-events:none}
.band > *{position:relative;z-index:1}
.band .eyebrow{color:#9FD9D3}
.band h1{color:var(--paper)}
.band .hint{color:#D5DDEA}
.mode{display:flex;background:rgba(255,255,255,.12);border:1.5px solid rgba(255,255,255,.35);border-radius:999px;padding:3px;gap:3px;margin-top:10px;width:fit-content;max-width:100%}
.mode button{border:0;background:transparent;color:var(--paper);border-radius:999px;padding:5px 12px;font-weight:800;font-size:.82rem}
.mode button[aria-pressed="true"]{background:var(--gold);color:#2A1D05}

/* bottom tabs */
.tabs{position:fixed;left:0;right:0;bottom:0;z-index:40;background:var(--lapis);border-top:3px solid var(--gold);display:flex;justify-content:center;
  padding:6px max(8px,env(safe-area-inset-right,0px)) calc(6px + env(safe-area-inset-bottom,0px)) max(8px,env(safe-area-inset-left,0px))}
.tabs .in{display:flex;gap:4px;width:100%;max-width:760px}
.tab{flex:1;display:flex;flex-direction:column;align-items:center;border:0;background:none;padding:4px 2px;border-radius:12px;font-size:.7rem;font-weight:800;color:#B9C6DD;position:relative;min-width:0}
.tab .i{font-size:1.3rem;line-height:1.2}
.tab[aria-current="page"]{color:var(--gold);background:rgba(255,255,255,.08)}
.tab .dot{position:absolute;top:2px;right:calc(50% - 22px);min-width:18px;height:18px;border-radius:9px;background:var(--bad);color:var(--paper);font-size:.68rem;display:grid;place-items:center;padding:0 4px}

/* inner screen header */
.head{display:flex;align-items:center;gap:12px}
.back{width:44px;height:44px;padding:0;flex:none;display:grid;place-items:center;font-size:1.2rem}
.head .t{flex:1;min-width:0}
.head .t b{display:block;font-family:var(--display);font-weight:800;font-size:1.35rem;line-height:1.1;color:var(--lapis);overflow-wrap:anywhere}
.head .t small{color:var(--ink-soft)}
.count{font-weight:800;font-variant-numeric:tabular-nums;border:1.5px solid var(--lapis);color:var(--lapis);border-radius:999px;padding:2px 12px;background:var(--paper);white-space:nowrap}

/* KPIs */
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.kpi{background:var(--paper);border:2px solid var(--lapis);border-radius:14px;padding:10px 6px;text-align:center}
.kpi b{display:block;font-family:var(--display);font-weight:800;font-size:1.65rem;line-height:1;color:var(--lapis);font-variant-numeric:tabular-nums}
.kpi span{font-size:.72rem;color:var(--ink-soft);line-height:1.2;display:block;margin-top:4px}
.band .kpis{margin-top:12px}
.band .kpi{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.3)}
.band .kpi b{color:var(--gold)}
.band .kpi span{color:#D5DDEA}

/* tasks / list cards */
.task{display:grid;grid-template-columns:84px 1fr;gap:12px;align-items:center;text-align:left;background:var(--paper);border:2px solid var(--lapis);border-radius:14px;padding:10px;box-shadow:0 3px 0 var(--lapis);width:100%}
.task img{width:84px;height:64px;object-fit:cover;border-radius:10px}
.task .tt{min-width:0;display:flex;flex-direction:column;gap:4px}
.task b{font-family:var(--display);font-weight:800;line-height:1.15;color:var(--lapis);font-size:1.05rem}
.task .meta{display:flex;flex-wrap:wrap;gap:6px;align-items:center;font-size:.8rem;color:var(--ink-soft)}
.task .pr{display:flex;align-items:center;gap:8px;font-size:.8rem;font-variant-numeric:tabular-nums}
.task.self{border-style:dashed;box-shadow:none}
.task.noimg{grid-template-columns:1fr}

/* books by grade */
.grades{display:flex;gap:6px;overflow-x:auto;padding-bottom:4px}
.grades button{flex:none;border:2px solid var(--lapis);background:var(--paper);color:var(--lapis);border-radius:12px;padding:6px 12px;font-family:var(--display);font-weight:800;font-size:1.05rem}
.grades button[aria-pressed="true"]{background:var(--lapis);color:var(--gold)}
.grades button.soon{border-style:dashed;opacity:.7}
.book{display:grid;grid-template-columns:110px 1fr;gap:14px;align-items:center;text-align:left;background:var(--paper);border:2px solid var(--lapis);border-radius:16px;padding:12px;box-shadow:0 3px 0 var(--lapis);width:100%}
.book img,.book .ph{width:110px;height:140px;object-fit:cover;border-radius:6px;border:3px solid var(--gold);box-shadow:0 0 0 2px var(--lapis)}
.book .ph{display:grid;place-items:center;background:var(--lapis) var(--girih);color:var(--gold);font-family:var(--display);font-weight:800;font-size:2rem}
.book b{font-family:var(--display);font-weight:800;font-size:1.3rem;line-height:1.1;display:block;color:var(--lapis)}
.book.soon{border-style:dashed;box-shadow:none;cursor:default}
.cover{position:relative;border-radius:16px;overflow:hidden;border:2px solid var(--lapis);box-shadow:inset 0 0 0 3px var(--gold)}
.cover img{display:block;width:100%;aspect-ratio:16/8;object-fit:cover}
.cover .lbl{position:absolute;left:12px;bottom:12px;right:12px;background:rgba(255,255,255,.95);border:2px solid var(--lapis);border-radius:12px;padding:8px 12px}
.cover .lbl b{font-family:var(--display);color:var(--lapis);font-size:1.15rem}
.topics{display:flex;flex-direction:column;gap:10px}
.tp{display:grid;grid-template-columns:52px 1fr auto;gap:12px;align-items:center;text-align:left;background:var(--paper);border:2px solid var(--lapis);border-radius:14px;padding:10px 12px;width:100%}
.tp.ready{box-shadow:0 3px 0 var(--lapis)}
.tp.soon{border-style:dashed;border-color:var(--ink-soft);background:rgba(255,255,255,.55);cursor:default}
.tp .no{font-family:var(--display);font-weight:800;color:var(--gold-2);font-size:1.1rem;text-align:center;line-height:1.1}
.tp .no small{display:block;font-size:.62rem;color:var(--ink-soft);font-family:var(--body)}
.tp b{font-weight:800;line-height:1.2;display:block;color:var(--lapis)}
.tp small{color:var(--ink-soft);font-size:.8rem;line-height:1.3;display:block}
.tp .pr{display:flex;align-items:center;gap:6px;margin-top:4px;font-size:.78rem;font-variant-numeric:tabular-nums}

/* topic trail */
.trail{position:relative;display:flex;flex-direction:column;gap:12px;padding-left:28px}
.trail::before{content:"";position:absolute;left:11px;top:20px;bottom:20px;border-left:3px dotted var(--gold-2)}
.stn{position:relative;display:grid;grid-template-columns:80px 1fr auto;gap:12px;align-items:center;text-align:left;background:var(--paper);border:2px solid var(--lapis);border-radius:14px;padding:10px;box-shadow:0 3px 0 var(--lapis);width:100%}
.stn:active{transform:translateY(3px);box-shadow:0 0 0 var(--lapis)}
.stn .no{position:absolute;left:-30px;top:50%;transform:translateY(-50%);width:26px;height:26px;border-radius:50%;background:var(--ground);border:3px solid var(--gold-2);display:grid;place-items:center;font-family:var(--display);font-weight:800;font-size:.85rem;color:var(--lapis)}
.stn.done .no{background:var(--lapis);border-color:var(--gold);color:var(--gold)}
.stn img{width:80px;height:60px;object-fit:cover;border-radius:10px}
.stn b{display:block;font-family:var(--display);font-weight:800;font-size:1.12rem;line-height:1.15;color:var(--lapis)}
.stn small{color:var(--ink-soft);font-size:.82rem}
.frames{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.frame{background:var(--paper);border:5px solid var(--lapis);outline:2px solid var(--gold);outline-offset:-9px;border-radius:4px;padding:8px;text-align:center}
.frame img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:2px;display:block}
.frame span{display:block;font-size:.74rem;font-weight:800;line-height:1.2;margin-top:4px;color:var(--lapis)}
.frame.empty{border-color:var(--ground-2);outline-color:transparent;background:var(--ground)}
.frame.empty .slot{aspect-ratio:4/3;display:grid;place-items:center;color:var(--ink-soft);font-size:1.4rem}

/* games */
.card{background:var(--paper);border:2px solid var(--lapis);border-radius:16px;padding:14px;display:flex;flex-direction:column;gap:10px}
.card img.ph{display:block;width:100%;height:auto;border-radius:10px}
.card h3{font-size:1.4rem}
.card p{max-width:62ch}
.say{align-self:flex-start;border:1.5px solid var(--lapis);color:var(--lapis);background:var(--ground);border-radius:999px;padding:5px 14px;font-weight:800}
.nav{display:flex;justify-content:space-between;gap:12px}
.shake{animation:shake .4s}
@keyframes shake{25%{transform:translateX(-7px)}75%{transform:translateX(7px)}}
.slots{display:flex;flex-direction:column;gap:8px}
.slot{display:grid;grid-template-columns:30px 1fr;gap:10px;align-items:center;min-height:50px;border:2px dashed var(--ground-2);border-radius:12px;padding:6px 10px;background:rgba(255,255,255,.5)}
.slot .n{font-family:var(--display);font-weight:800;color:var(--gold-2);text-align:center}
.slot.fill{border:2px solid var(--turq);background:var(--paper)}
.slot .tx{display:flex;flex-direction:column}
.slot .when{font-weight:800;color:var(--turq);font-size:.88rem;font-variant-numeric:tabular-nums}
.ends{font-size:.78rem;color:var(--ink-soft);font-weight:800}
.pool{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.ev{display:flex;flex-direction:column;gap:6px;text-align:left;background:var(--paper);border:2px solid var(--lapis);border-radius:12px;padding:8px;box-shadow:0 3px 0 var(--lapis)}
.ev img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:8px}
.ev span{font-weight:800;font-size:.88rem;line-height:1.25}
.opts{display:grid;gap:10px}
.opt{text-align:left;background:var(--paper);border:2px solid var(--lapis);border-radius:12px;padding:12px 14px;font-weight:800;box-shadow:0 3px 0 var(--lapis)}
.opt.right{background:var(--turq);border-color:var(--turq);color:var(--paper);box-shadow:0 3px 0 #156767}
.opt.nope{background:#FBE7E5;border-color:var(--bad);color:var(--bad);box-shadow:none}
.fb{border-radius:12px;padding:12px 14px;font-weight:700}
.fb.good{background:#DCF0EE;border:2px solid var(--turq)}
.fb.soso{background:var(--warn);border:2px solid var(--gold-2)}
.bins{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.bin{border:2px solid var(--lapis);border-radius:14px;padding:12px 10px;font-family:var(--display);font-weight:800;font-size:1.05rem;color:var(--lapis);background:var(--paper);box-shadow:0 3px 0 var(--lapis);min-height:88px}
.bin:nth-child(2){background:#E6F1F1}
.bin small{display:block;font-family:var(--body);font-size:.76rem;color:var(--ink-soft);margin-top:4px;font-weight:700}
.item{font-family:var(--display);font-weight:800;font-size:1.3rem;color:var(--lapis);text-align:center;padding:22px 12px;background:var(--paper);border:2px dashed var(--gold-2);border-radius:16px;line-height:1.25}
.prize{display:flex;flex-direction:column;align-items:center;gap:12px;text-align:center;padding-top:8px}
.prize .frame{width:min(300px,88%)}
.prize h2{font-size:1.8rem}
.stars{font-size:1.9rem;letter-spacing:4px;color:var(--gold)}

/* lists, rating, tables */
.list{display:flex;flex-direction:column;gap:8px}
.li{display:grid;grid-template-columns:1fr auto;gap:10px;align-items:center;padding:10px 12px;border-radius:12px;background:var(--ground)}
.li b{display:block;font-weight:800;line-height:1.2;color:var(--lapis)}
.li small{color:var(--ink-soft);font-size:.8rem;display:block;line-height:1.3}
.li.btnlike{border:2px solid var(--lapis);background:var(--paper);text-align:left;width:100%}
.wrongs{margin:6px 0 0;padding-left:18px;font-size:.82rem;color:var(--bad)}
.rank{display:grid;grid-template-columns:40px 1fr auto;gap:10px;align-items:center;padding:8px 12px;border-radius:12px;background:var(--paper);border:1.5px solid var(--ground-2)}
.rank .pos{font-family:var(--display);font-weight:800;font-size:1.2rem;color:var(--lapis);text-align:center;font-variant-numeric:tabular-nums}
.rank.top1 .pos,.rank.top2 .pos,.rank.top3 .pos{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;color:#2A1D05;font-size:1rem}
.rank.top1 .pos{background:var(--gold)}.rank.top2 .pos{background:#C9CED6}.rank.top3 .pos{background:#D9A57A}
.rank b{display:block;color:var(--ink);font-weight:800;line-height:1.2}
.rank small{color:var(--ink-soft);font-size:.78rem}
.rank .pt{font-family:var(--display);font-weight:800;color:var(--lapis);font-variant-numeric:tabular-nums}
.rank.me{border:2px solid var(--gold);background:#FFF8E8}
.grid-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:10px;border:1.5px solid var(--ground-2)}
table.tbl{border-collapse:collapse;width:100%;min-width:440px;font-size:.85rem}
.tbl th,.tbl td{padding:8px 10px;text-align:left;border-bottom:1px solid var(--ground-2);white-space:nowrap;font-variant-numeric:tabular-nums}
.tbl th{font-size:.72rem;color:var(--paper);text-transform:uppercase;letter-spacing:.04em;background:var(--lapis)}
.tbl td.nm{white-space:normal;font-weight:800;color:var(--lapis)}
.tbl tr.click{cursor:pointer}
.code{font-family:var(--display);font-weight:800;font-size:1.7rem;letter-spacing:.14em;color:var(--lapis);background:var(--ground);border:2px dashed var(--gold-2);border-radius:12px;padding:6px 14px;text-align:center}
.link{font-size:.82rem;word-break:break-all;background:var(--ground);border-radius:10px;padding:8px 10px;user-select:all}
.status{display:flex;gap:10px;align-items:center;padding:12px;border-radius:12px}
.status.pending{background:var(--warn);border:2px solid var(--gold-2)}
.status.ok{background:#DCF0EE;border:2px solid var(--turq)}
.status.bad{background:#FBE7E5;border:2px solid var(--bad)}
.seg{display:flex;gap:6px;flex-wrap:wrap}
.seg button{border:1.5px solid var(--lapis);color:var(--lapis);background:var(--paper);border-radius:999px;padding:4px 12px;font-weight:800;font-size:.85rem}
.seg button[aria-pressed="true"]{background:var(--lapis);color:var(--gold)}
.checks{display:flex;flex-direction:column;gap:6px}
.checks label{display:flex;gap:10px;align-items:center;padding:8px 10px;border:1.5px solid var(--ground-2);border-radius:10px;font-weight:700}
.checks input{width:20px;height:20px;accent-color:var(--lapis)}

@media (prefers-reduced-motion:reduce){.shake{animation:none}.btn,.stn{transition:none}}
@media (max-width:420px){
  .stn{grid-template-columns:64px 1fr}.stn img{width:64px;height:50px}.stn .chip{grid-column:2;justify-self:start}
  .book{grid-template-columns:84px 1fr}.book img,.book .ph{width:84px;height:108px}
  .frames{gap:8px}
}