/* base reset */
*,*::before,*::after{box-sizing:border-box}
html{color-scheme:light;-webkit-text-size-adjust:100%}
:root{padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
body{margin:0;min-height:100vh}
img{max-width:100%}
[hidden]{display:none!important}
button{font:inherit;color:inherit;cursor:pointer}
input{font:inherit}

/* Arabian Dyar foundations: HT Sonata for all Arabic, navy + limestone sand, crisp corners, doorway-arch motif, gold used sparingly */
@font-face{font-family:"HT Sonata";src:url(fonts/ht-sonata-1.ttf) format("truetype");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"HT Sonata";src:url(fonts/ht-sonata-2.ttf) format("truetype");font-weight:700;font-style:normal;font-display:swap}
:root{
  /* brand palette */
  --navy-900:#0A1A36; --navy-800:#102040; --navy-700:#1A2D55; --navy-600:#2A3F6E; --navy-500:#4A5F8E; --navy-400:#7A8AAE; --navy-300:#B0BBD0; --navy-200:#D6DCE8; --navy-100:#EAEEF5;
  --sand-900:#6B5A40; --sand-700:#9C8761; --sand-500:#C9B58A; --sand-300:#E6D9BA; --sand-200:#EFE6D0; --sand-100:#F5EFE0; --sand-50:#FAF6EC;
  --gold-600:#8E6A2A; --gold-500:#B89260; --gold-400:#C8A875;
  --maroon:#7A2E3B; --green:#2F5B4D; --plum:#4D3F72;
  --hl-rose:rgba(222,110,172,.42); --hl-sand:rgba(200,160,90,.45); --hl-green:rgba(100,170,135,.42); --hl-plum:rgba(150,125,205,.42); --hl-sky:rgba(95,155,220,.42);
  /* roles (light) */
  --bg:#FAF6EC; --card:#FFFFFF; --sunk:#F5EFE0; --ink:#0A1A36; --ink-2:#1A2D55; --muted:#4A5F8E; --line:#E5E2D8; --line-strong:#B0BBD0;
  --teal:#102040; --accent:#102040; --accent-ink:#FFFFFF; --hero:#0A1A36; --hero-ink:#FFFFFF; --hero-muted:#B0BBD0; --hero-line:#2A3F6E; --hero-cta:#F5EFE0; --hero-cta-ink:#0A1A36;
  --good:#2E7D5B; --good-bg:#E4F1EA; --bad:#B0321C; --bad-bg:#F8E4DF;
  --gold:#8E6A2A; --gold-bg:#F5EFE0; --star:#B89260;
  --key-bg:#EAF2EE; --key:#2F5B4D; --trap-bg:#F6E9EB; --trap:#7A2E3B; --tip-bg:#EEEBF5; --tip:#4D3F72;
  --c1:#102040; --c2:#8E6A2A; --c3:#7A2E3B; --c4:#2F5B4D; --c5:#4D3F72; --c6:#4A5F8E; --c7:#6B5A40; --c8:#B8761E; --c9:#3D6B7A; --c10:#8A5A44;
  --shadow:0 1px 2px rgba(10,26,54,.06);
  --shadow-md:0 4px 16px -4px rgba(10,26,54,.10),0 2px 4px rgba(10,26,54,.04);
  --shadow-lg:0 24px 48px -16px rgba(10,26,54,.18),0 6px 16px -6px rgba(10,26,54,.08);
  --f-display:"HT Sonata","IBM Plex Sans Arabic",Georgia,serif;
  --f-body:"HT Sonata","IBM Plex Sans Arabic",Georgia,serif;
  --f-math:"IBM Plex Sans Arabic","Segoe UI",system-ui,sans-serif;
  --r:2px; --r-in:4px; --r-chip:8px;
  --ease:cubic-bezier(0.22,0.61,0.36,1); --ease-arch:cubic-bezier(0.16,1,0.3,1);
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --bg:#0A1A36; --card:#102040; --sunk:#0D1D3B; --ink:#F4F6FB; --ink-2:#D6DCE8; --muted:#B0BBD0; --line:#22365F; --line-strong:#4A5F8E;
  --teal:#E6D9BA; --accent:#EFE6D0; --accent-ink:#0A1A36; --hero:#16294D; --hero-ink:#FFFFFF; --hero-muted:#B0BBD0; --hero-line:#2A3F6E; --hero-cta:#C8A875; --hero-cta-ink:#0A1A36;
  --good:#6FC39C; --good-bg:#163A33; --bad:#F08B76; --bad-bg:#3D1F22;
  --gold:#C8A875; --gold-bg:#2A2B33; --star:#C8A875;
  --key-bg:#14302F; --key:#8CC7AE; --trap-bg:#33202D; --trap:#E39AA8; --tip-bg:#221F42; --tip:#B9ABE6;
  --c1:#B0BBD0; --c2:#C8A875; --c3:#D9909E; --c4:#83BFA6; --c5:#ABA0DC; --c6:#8FA3CF; --c7:#E6D9BA; --c8:#E2A85E; --c9:#86B8C6; --c10:#D9A68C;
  --shadow:0 1px 2px rgba(0,0,0,.3); --shadow-md:0 4px 16px -4px rgba(0,0,0,.4); --shadow-lg:0 24px 48px -16px rgba(0,0,0,.5);
  color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0A1A36; --card:#102040; --sunk:#0D1D3B; --ink:#F4F6FB; --ink-2:#D6DCE8; --muted:#B0BBD0; --line:#22365F; --line-strong:#4A5F8E;
  --teal:#E6D9BA; --accent:#EFE6D0; --accent-ink:#0A1A36; --hero:#16294D; --hero-ink:#FFFFFF; --hero-muted:#B0BBD0; --hero-line:#2A3F6E; --hero-cta:#C8A875; --hero-cta-ink:#0A1A36;
  --good:#6FC39C; --good-bg:#163A33; --bad:#F08B76; --bad-bg:#3D1F22;
  --gold:#C8A875; --gold-bg:#2A2B33; --star:#C8A875;
  --key-bg:#14302F; --key:#8CC7AE; --trap-bg:#33202D; --trap:#E39AA8; --tip-bg:#221F42; --tip:#B9ABE6;
  --c1:#B0BBD0; --c2:#C8A875; --c3:#D9909E; --c4:#83BFA6; --c5:#ABA0DC; --c6:#8FA3CF; --c7:#E6D9BA; --c8:#E2A85E; --c9:#86B8C6; --c10:#D9A68C;
  --shadow:0 1px 2px rgba(0,0,0,.3); --shadow-md:0 4px 16px -4px rgba(0,0,0,.4); --shadow-lg:0 24px 48px -16px rgba(0,0,0,.5);
  color-scheme:dark}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{height:100%}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:17.5px;line-height:1.95;direction:rtl;letter-spacing:0;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--gold-500);outline-offset:2px}
strong{color:var(--ink-2);font-weight:700}
h1,h2,h3,h4{font-family:var(--f-display);font-weight:700;line-height:1.45;text-wrap:balance;margin:0;color:var(--ink)}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"lnum"}
.mathy,.fx{font-family:var(--f-body)}

/* header */
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:color-mix(in srgb,var(--card) 92%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.top-in{max-width:1080px;margin:0 auto;padding-block:10px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:12px;background:none;border:0;padding:0}
.brand .mark{width:30px;height:38px;border-radius:999px 999px 0 0;background:var(--navy-800);display:grid;place-items:end center;padding-bottom:7px}
:root[data-theme="dark"] .brand .mark{background:var(--sand-300)}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .brand .mark{background:var(--sand-300)}}
.brand b{font-family:var(--f-display);font-weight:700;font-size:20px;line-height:1.3;display:block}
.brand small{display:block;font-size:12.5px;color:var(--muted);line-height:1.3;text-align:right}
.chip{display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:999px;background:var(--card);border:1px solid var(--line);font-size:14px;white-space:nowrap;line-height:1.6}
.chip svg{width:15px;height:15px}
.chip.flame{color:var(--trap)} .chip.xp{color:var(--ink-2)}
.chip.combo{background:var(--gold-bg);color:var(--gold);border-color:var(--gold-500)}
.iconbtn{width:36px;height:36px;border-radius:var(--r-in);border:1px solid var(--line);background:var(--card);display:grid;place-items:center;color:var(--ink-2)}
.iconbtn svg{width:18px;height:18px}

.wrap{max-width:1080px;margin:0 auto;padding-block:28px 96px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow)}
.eyebrow{font-size:14px;color:var(--muted);letter-spacing:0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:var(--r);padding:10px 22px;font-family:var(--f-display);font-weight:700;font-size:16.5px;line-height:1.6;background:var(--accent);color:var(--accent-ink);transition:transform 140ms var(--ease),background 140ms var(--ease)}
.btn:hover{background:var(--navy-700)}
:root[data-theme="dark"] .btn:hover{background:var(--sand-300)}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .btn:hover{background:var(--sand-300)}}
.btn:active{transform:scale(.98)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line-strong)}
.btn.ghost:hover{background:var(--sunk)}
.btn.teal{background:var(--accent);color:var(--accent-ink)}
.btn.lg{padding:13px 30px;font-size:18px}
.btn:disabled{opacity:.4;cursor:default}

/* highlighter band behind sub-headings (rotates) */
.sec-h h2{display:inline;padding:0 4px 0 28px;background:linear-gradient(to left,var(--hl-sand),transparent) no-repeat 0 72%/100% 38%;-webkit-box-decoration-break:clone;box-decoration-break:clone}
.sec-h:nth-of-type(5n+1) h2{background-image:linear-gradient(to left,var(--hl-rose),transparent)}
.sec-h:nth-of-type(5n+2) h2{background-image:linear-gradient(to left,var(--hl-green),transparent)}
.sec-h:nth-of-type(5n+3) h2{background-image:linear-gradient(to left,var(--hl-plum),transparent)}
.sec-h:nth-of-type(5n+4) h2{background-image:linear-gradient(to left,var(--hl-sky),transparent)}
.blocks h4{display:inline-block;padding:0 4px 0 22px;background:linear-gradient(to left,var(--hl-sand),transparent) no-repeat 0 75%/100% 36%}

/* home hero */
.hero{display:grid;grid-template-columns:1.3fr 1fr;gap:16px}
@media (max-width:780px){.hero{grid-template-columns:1fr}}
.next{padding:28px;display:flex;flex-direction:column;gap:18px;background:var(--hero);color:var(--hero-ink);border-color:var(--hero);box-shadow:var(--shadow-lg);position:relative;overflow:hidden}
.next .eyebrow{color:var(--gold-400)}
.next h2{font-size:30px;color:var(--hero-ink);line-height:1.4}
.next .meta{color:var(--hero-muted);font-size:15px}
.next-top{display:grid;grid-template-columns:1fr auto;gap:20px;align-items:end}
.archwin{width:104px;height:136px;border-radius:999px 999px 0 0;border:1px solid var(--gold-500);display:flex;flex-direction:column;align-items:center;justify-content:flex-end;padding-bottom:14px;background:linear-gradient(to top,rgba(200,168,117,.22),transparent 75%)}
.archwin .num{font-family:var(--f-display);font-size:38px;line-height:1;color:var(--sand-200)}
.archwin small{color:var(--hero-muted);font-size:13px;line-height:1.5}
.archwin .lbl{color:var(--gold-400);font-size:12.5px;margin-bottom:4px}
@media (max-width:520px){.archwin{display:none}.next-top{grid-template-columns:1fr}}
.next .btn{background:var(--hero-cta);color:var(--hero-cta-ink)}
.next .btn:hover{background:var(--sand-300)}
.next .btn.ghost{background:transparent;color:var(--hero-ink);border-color:var(--hero-line)}
.next .btn.ghost:hover{background:rgba(255,255,255,.06)}
.stats3{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--hero-line)}
.stat{padding:14px 14px 4px;background:transparent;border:0;box-shadow:none;color:var(--hero-ink)}
.stat+.stat{border-inline-start:1px solid var(--hero-line)}
.stat .v{font-family:var(--f-display);font-size:28px;line-height:1.3;display:inline-block;padding-bottom:4px;border-bottom:2px solid var(--gold-500)}
.stats3 .stat:nth-child(2) .v{border-color:#7FB8A2}
.stats3 .stat:nth-child(3) .v{border-color:#A99BD6}
.stat .l{font-size:13.5px;color:var(--hero-muted);margin-top:4px}
.stat .bar{background:var(--hero-line)} .stat .bar>i{background:var(--gold-400)}
.ring circle:first-child{stroke:var(--hero-line)}
.bar{height:4px;border-radius:0;background:var(--sunk);overflow:hidden}
.bar>i{display:block;height:100%;background:var(--accent);transition:width .6s var(--ease)}
.alloc{padding:22px;display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:center}
@media (max-width:520px){.alloc{grid-template-columns:1fr;justify-items:center}}
.alloc svg{width:176px;height:176px}
.legend{display:grid;gap:2px;width:100%;min-width:0}
.legend button{display:grid;grid-template-columns:10px 1fr auto;gap:10px;align-items:center;border:0;border-bottom:1px solid var(--line);background:none;padding:4px 2px;text-align:right;font-size:14.5px;min-width:0;line-height:1.7}
.legend button:hover{background:var(--sunk)}
.legend .sw{width:10px;height:10px}
.legend .t{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.legend .w{color:var(--muted);font-size:13px}
.sec-h{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:40px 0 14px;flex-wrap:wrap}
.sec-h h2{font-size:24px}
.modes{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:0;border-top:1px solid var(--line);border-inline-start:1px solid var(--line);background:var(--card)}
@media (max-width:520px){.modes{grid-template-columns:1fr 1fr}.mode{padding:14px!important}.mode span{font-size:13px}}
.mode{padding:20px;text-align:right;display:flex;flex-direction:column;gap:6px;border:0;border-inline-end:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--card);transition:background 140ms var(--ease)}
.mode:hover{background:var(--sunk)}
.mode .ic{width:38px;height:38px;display:grid;place-items:center;color:#fff;margin-bottom:4px}
.mode .ic svg{width:19px;height:19px}
.mode b{font-family:var(--f-display);font-size:18px}
.mode span{font-size:14px;color:var(--muted);line-height:1.7}
.mode .badge-n{align-self:flex-start;font-size:13px;padding:0 10px;border-radius:999px;background:var(--gold-bg);color:var(--gold);border:1px solid var(--gold-500)}
.chs{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.chc{padding:20px;text-align:right;border:1px solid var(--line);border-top:3px solid var(--cc);background:var(--card);border-radius:var(--r);display:flex;flex-direction:column;gap:10px;box-shadow:var(--shadow);transition:box-shadow 240ms var(--ease),transform 240ms var(--ease)}
.chc:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.chc .n{font-size:14px;color:var(--cc)}
.chc h3{font-size:21px}
.chc .row{display:flex;justify-content:space-between;font-size:13.5px;color:var(--muted);gap:8px}
.chc .bar>i{background:var(--cc)}
.badges{display:flex;flex-wrap:wrap;gap:8px}
.bdg{display:flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;border:1px dashed var(--line-strong);font-size:14px;color:var(--muted)}
.bdg.on{border-style:solid;border-color:var(--gold-500);background:var(--gold-bg);color:var(--ink)}
.bdg.on svg{color:var(--gold)}
.bdg svg{width:16px;height:16px}
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:var(--card)}
table{border-collapse:collapse;width:100%;font-size:15.5px;line-height:1.8}
th,td{padding:10px 14px;border-bottom:1px solid var(--line);text-align:right;vertical-align:top}
th{background:var(--navy-800);color:#fff;font-weight:700;font-size:14.5px;white-space:nowrap}
:root[data-theme="dark"] th{background:var(--navy-700)}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) th{background:var(--navy-700)}}
tr:nth-child(odd) td{background:color-mix(in srgb,var(--sunk) 55%,transparent)}
tr:last-child td{border-bottom:0}

/* chapter */
.ch-head{padding:28px;display:grid;gap:14px;border-top:4px solid var(--cc)}
.ch-head h1{font-size:36px;line-height:1.35}
.actions{display:flex;flex-wrap:wrap;gap:8px}
.secblk{margin-top:26px}
.secblk>h3{font-size:21px;margin:0 0 8px;display:flex;gap:10px;align-items:baseline;flex-wrap:wrap}
.secblk>h3 small{font-weight:400;color:var(--muted);font-size:14px}
.secblk>p{margin:0 0 12px;color:var(--muted);font-size:15.5px}
.lrow{display:grid;grid-template-columns:40px 1fr auto;gap:14px;align-items:center;width:100%;text-align:right;padding:12px 16px;border:1px solid var(--line);background:var(--card);border-radius:var(--r);margin-bottom:-1px;transition:background 140ms var(--ease)}
.lrow:hover{background:var(--sunk)}
.lrow .st{width:34px;height:40px;border-radius:999px 999px 0 0;display:grid;place-items:center;padding-top:4px;background:var(--sunk);font-size:14px;color:var(--muted)}
.lrow.done .st{background:var(--good);color:#fff}
.lrow.nextl{border-color:var(--gold-500);border-inline-start:3px solid var(--gold-500);background:var(--sunk);position:relative;z-index:1}
.lrow.nextl .st{background:var(--accent);color:var(--accent-ink)}
.lrow.nextl .tt strong{color:var(--gold)}
.lrow .tt{min-width:0}
.lrow .tt b{display:block;font-size:17px;line-height:1.6}
.lrow .tt span{font-size:13.5px;color:var(--muted)}
.stars{color:var(--star);letter-spacing:2px;font-size:15px;white-space:nowrap;font-family:var(--f-math)}

/* lesson player */
.player{max-width:780px;margin:0 auto}
.p-top{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.segs{flex:1;display:flex;gap:3px}
.segs i{flex:1;height:4px;background:var(--line)}
.segs i.d{background:var(--accent)} .segs i.q{background:color-mix(in srgb,var(--gold-500) 35%,var(--line))} .segs i.q.d{background:var(--gold-500)} .segs i.cur{height:6px;margin-top:-1px;background:var(--gold-500)}
.stage{padding:30px;min-height:260px;animation:rise 480ms var(--ease-arch)}
@keyframes rise{from{transform:translateY(10px);opacity:.35}to{transform:none;opacity:1}}
.stage h2{font-size:28px;margin-bottom:8px}
.obj{font-size:14.5px;color:var(--muted);border-inline-start:2px solid var(--gold-500);background:var(--sunk);padding:8px 14px;margin:8px 0 18px}
.blocks{display:grid;gap:16px}
.blocks p{margin:0}
.blocks ul,.blocks ol{margin:0;padding-inline-start:24px;display:grid;gap:6px}
.blocks li::marker{color:var(--gold-500)}
.blocks h4{margin:0 0 8px;font-size:17px}
.call{padding:14px 18px;display:grid;gap:4px;border-inline-start:3px solid}
.call .lab{font-size:14px;font-weight:700;display:flex;align-items:center;gap:6px}
.call .lab svg{width:16px;height:16px}
.call ul.pts{margin:2px 0 0;padding-inline-start:20px;display:grid;gap:6px}
.call ul.pts li{padding-inline-start:2px}
.call.key ul.pts li::marker{color:var(--key)} .call.trap ul.pts li::marker{color:var(--trap)} .call.tip ul.pts li::marker{color:var(--tip)}
.call.key{background:var(--key-bg);border-color:var(--key)} .call.key .lab{color:var(--key)}
.call.trap{background:var(--trap-bg);border-color:var(--trap)} .call.trap .lab{color:var(--trap)}
.call.tip{background:var(--tip-bg);border-color:var(--tip)} .call.tip .lab{color:var(--tip)}
.formula{border:1px solid var(--line-strong);background:var(--card)}
.formula .fn{background:var(--navy-800);color:#fff;padding:6px 16px;font-size:15px;font-weight:700}
:root[data-theme="dark"] .formula .fn{background:var(--navy-600)}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .formula .fn{background:var(--navy-600)}}
.formula .fx{padding:14px 18px;font-size:19px;overflow-x:auto;unicode-bidi:plaintext}
.formula ul{padding:0 36px 12px 16px;font-size:15px;color:var(--muted)}
.formula .fnote{padding:0 18px 14px;font-size:14.5px;color:var(--muted)}
.example{border:1px dashed var(--sand-700);background:color-mix(in srgb,var(--sunk) 60%,transparent);padding:14px 18px}
.example h4{color:var(--gold);background:none;padding:0}
.p-foot{display:flex;justify-content:space-between;align-items:center;margin-top:18px;gap:10px;flex-wrap:wrap}
.kbd{font-size:13px;color:var(--muted)}

/* question */
.qtag{display:inline-flex;gap:6px;align-items:center;font-size:14px;font-weight:700;color:var(--gold);margin-bottom:8px}
.qtext{font-size:21px;font-weight:700;line-height:1.85;margin:0 0 18px}
.opts{display:grid;gap:10px}
.opt{display:grid;grid-template-columns:34px 1fr;gap:14px;align-items:center;text-align:right;padding:12px 16px;border:1px solid var(--line-strong);background:var(--card);border-radius:var(--r-in);transition:border-color 140ms var(--ease),background 140ms var(--ease);line-height:1.8}
.opt:hover:not(:disabled){background:var(--sunk);border-color:var(--ink-2)}
.opt .lt{width:30px;height:36px;border-radius:999px 999px 0 0;background:var(--sunk);display:grid;place-items:center;padding-top:4px;font-weight:700;font-size:15px;color:var(--ink-2)}
.opt.sel{border-color:var(--ink);background:var(--sunk)} .opt.sel .lt{background:var(--accent);color:var(--accent-ink)}
.opt.ok{border-color:var(--good);background:var(--good-bg)} .opt.ok .lt{background:var(--good);color:#fff}
.opt.no{border-color:var(--bad);background:var(--bad-bg)} .opt.no .lt{background:var(--bad);color:#fff}
.opt:disabled{cursor:default}
.fb{margin-top:16px;padding:14px 18px;border-inline-start:3px solid;animation:rise 300ms var(--ease)}
.fb.ok{background:var(--good-bg);border-color:var(--good)} .fb.no{background:var(--bad-bg);border-color:var(--bad)}
.fb b.h{display:block;font-family:var(--f-display);font-size:19px}
.fb.ok b.h{color:var(--good)} .fb.no b.h{color:var(--bad)}
.shake{animation:shake .35s}
@keyframes shake{25%{transform:translateX(6px)}50%{transform:translateX(-6px)}75%{transform:translateX(3px)}}
.pop{animation:pop .4s}
@keyframes pop{40%{transform:scale(1.02)}}
.xpfly{position:fixed;z-index:60;font-family:var(--f-display);font-weight:700;font-size:24px;color:var(--gold-500);pointer-events:none;animation:fly 1s var(--ease) forwards}
@keyframes fly{to{transform:translateY(-70px);opacity:0}}

/* result — score in a doorway arch */
.result{padding:36px 24px;text-align:center;display:grid;gap:14px;justify-items:center}
.arch{width:190px;height:220px;border-radius:999px 999px 0 0;background:var(--hero);color:var(--hero-ink);display:flex;flex-direction:column;align-items:center;justify-content:flex-end;padding-bottom:30px;box-shadow:var(--shadow-lg);animation:archin 900ms var(--ease-arch)}
@keyframes archin{from{clip-path:inset(100% 0 0 0)}to{clip-path:inset(0 0 0 0)}}
.arch .big{font-family:var(--f-display);font-weight:700;font-size:54px;line-height:1.1;color:var(--sand-100)}
.result .stars{font-size:30px;letter-spacing:6px}
.kv{display:flex;gap:10px;flex-wrap:wrap;justify-content:center}

/* flashcards */
.fc{perspective:1200px;max-width:640px;margin:0 auto}
.fc-in{position:relative;min-height:340px;transition:transform .55s var(--ease-arch);transform-style:preserve-3d;cursor:pointer}
.fc.flip .fc-in{transform:rotateY(180deg)}
.fc-face{position:absolute;inset:0;backface-visibility:hidden;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:10px;padding:30px;text-align:center;border:1px solid var(--line);background:var(--card);box-shadow:var(--shadow-md);overflow:auto}
.fc-face::before{content:"";position:absolute;top:18px;width:26px;height:32px;border-radius:999px 999px 0 0;border:1px solid var(--gold-500)}
.fc-face.b{transform:rotateY(180deg);background:var(--sunk)}
.fc-face.b::before{display:none}
.fc-face .ft{font-family:var(--f-display);font-weight:700;font-size:27px;line-height:1.6}
.fc-face .bt{font-size:18px;line-height:1.95}
.fc-face small{color:var(--muted);font-size:13.5px}
.fc-btns{display:flex;gap:10px;justify-content:center;margin-top:18px;flex-wrap:wrap}
.boxes{display:flex;gap:6px;justify-content:center;margin:10px 0 18px;flex-wrap:wrap}
.boxes span{font-size:13px;padding:1px 12px;border-radius:999px;background:var(--sunk);color:var(--muted);border:1px solid var(--line)}

/* misc */
.pills{display:flex;flex-wrap:wrap;gap:6px}
.pill{border:1px solid var(--line-strong);background:var(--card);border-radius:999px;padding:3px 14px;font-size:14.5px}
.pill.on{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.search{width:100%;padding:12px 16px;border-radius:var(--r-in);border:1px solid var(--line-strong);background:var(--card);color:var(--ink);font:inherit}
.gl{padding:16px 18px;border-bottom:1px solid var(--line)}
.gl:last-child{border-bottom:0}
.gl b{font-size:18px} .gl .en{direction:ltr;unicode-bidi:isolate;color:var(--muted);font-size:14.5px;margin-inline-start:10px}
.gl p{margin:4px 0 0;font-size:16px}
.navgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(38px,1fr));gap:4px}
.navgrid button{height:34px;border-radius:var(--r-in);border:1px solid var(--line);background:var(--card);font-size:13.5px;font-variant-numeric:tabular-nums}
.navgrid button.a{background:var(--navy-100);border-color:var(--navy-400);color:var(--navy-900)}
.navgrid button.f{box-shadow:inset 0 -3px 0 var(--gold-500)}
.navgrid button.c{outline:2px solid var(--ink)}
.timer{font-family:var(--f-display);font-weight:700;font-size:20px}
.toast{position:fixed;bottom:calc(22px + env(safe-area-inset-bottom,0px));left:50%;transform:translateX(-50%);z-index:70;background:var(--navy-900);color:#fff;border-bottom:2px solid var(--gold-500);padding:10px 20px;box-shadow:var(--shadow-lg);animation:rise .3s;max-width:calc(100% - 32px)}
.modal{position:fixed;inset:0;z-index:80;background:rgba(10,26,54,.55);display:grid;place-items:center;padding:20px}
.modal .card{max-width:420px;width:100%;padding:30px;text-align:center;display:grid;gap:12px;justify-items:center;animation:rise 480ms var(--ease-arch);box-shadow:var(--shadow-lg)}
#fx{position:fixed;inset:0;pointer-events:none;z-index:75}
.wrong-item{padding:16px 18px;border-bottom:1px solid var(--line)}
.wrong-item p{margin:4px 0}
.muted{color:var(--muted)}
.mt{margin-top:16px}
.ring{width:54px;height:54px}

/* navigation */
.hchips{display:flex;align-items:center;gap:8px;margin-inline-start:auto}
.tabs{display:flex;gap:2px;margin-inline:auto}
.tabs button{display:flex;align-items:center;gap:7px;border:0;background:none;padding:7px 14px;font-family:var(--f-display);font-weight:700;font-size:16px;color:var(--muted);border-bottom:2px solid transparent;line-height:1.5}
.tabs button svg{width:18px;height:18px}
.tabs button:hover{color:var(--ink)}
.tabs button.on{color:var(--ink);border-bottom-color:var(--gold-500)}
button.chip{cursor:pointer}
@media (max-width:860px){
  .top{backdrop-filter:none;-webkit-backdrop-filter:none;background:var(--card)}
  .tabs{position:fixed;bottom:0;left:0;right:0;z-index:30;margin:0;background:var(--card);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom,0px);padding-left:env(safe-area-inset-left,0px);padding-right:env(safe-area-inset-right,0px);justify-content:space-around;box-shadow:0 -4px 16px -6px rgba(10,26,54,.12)}
  .tabs button{flex:1;flex-direction:column;gap:2px;padding:8px 4px 6px;font-size:13px;border-bottom:0;border-top:2px solid transparent}
  .tabs button.on{border-top-color:var(--gold-500)}
  .wrap{padding-bottom:calc(110px + env(safe-area-inset-bottom,0px))}
  .brand{margin-inline-end:auto}
}
body.focus .tabs{display:none}
body.focus .wrap{padding-bottom:60px}
.crumb{border:0;background:none;color:var(--muted);font-size:15px;padding:0;margin-bottom:12px}
.crumb:hover{color:var(--ink)}
.btn.sm{padding:6px 16px;font-size:15px}
.page-h{display:grid;gap:6px;margin-bottom:22px}
.page-h h1{font-size:32px;line-height:1.4}
.page-h p{margin:0;max-width:68ch}
@media (max-width:520px){.page-h h1{font-size:25px}}

/* today plan */
.plan{padding:20px 22px;display:flex;flex-direction:column;gap:2px}
.plan-h{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:6px}
.plan-h h3{font-size:22px}
.task{display:grid;grid-template-columns:38px 1fr auto;gap:12px;align-items:center;padding:12px 0;border-top:1px solid var(--line)}
.task .tk{width:32px;height:38px;border-radius:999px 999px 0 0;background:var(--sunk);display:grid;place-items:center;padding-top:4px;color:var(--ink-2)}
.task .tk svg{width:16px;height:16px}
.task.ok .tk{background:var(--good);color:#fff;font-weight:700}
.task .tt{min-width:0}
.task .tt b{display:block;font-size:16.5px;line-height:1.5}
.task .tt span{font-size:14px;color:var(--muted);display:block;line-height:1.6}
.task.ok .tt b{color:var(--muted)}
.task.dis{opacity:.55}
.stages{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);background:var(--card)}
@media (max-width:860px){.stages{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.stages{grid-template-columns:1fr}}
.stg{display:flex;gap:12px;padding:18px;border-inline-end:1px solid var(--line);position:relative}
.stg:last-child{border-inline-end:0}
.stg b{font-size:16.5px;display:block;line-height:1.5}
.stg p{margin:4px 0 0;font-size:14px;color:var(--muted);line-height:1.7}
.arch-n{flex:none;width:30px;height:36px;border-radius:999px 999px 0 0;display:grid;place-items:center;padding-top:4px;background:var(--sunk);color:var(--muted);font-weight:700;font-size:15px}
.arch-n svg{width:15px;height:15px}
.stg.cur{background:var(--sunk)} .stg.cur .arch-n{background:var(--accent);color:var(--accent-ink)}
.stg.done .arch-n{background:var(--good);color:#fff}
.stg.daily .arch-n{color:var(--trap)}
.now{display:inline-block;margin-top:8px;font-size:12.5px;padding:0 10px;border-radius:999px;background:var(--gold-bg);color:var(--gold);border:1px solid var(--gold-500)}

/* path + chapter */
.csteps{display:flex;align-items:center;gap:6px;flex-wrap:wrap;font-size:13.5px;color:var(--muted)}
.cs{display:inline-flex;align-items:center;gap:6px}
.cs i{font-style:normal;width:20px;height:24px;border-radius:999px 999px 0 0;background:var(--sunk);display:grid;place-items:center;padding-top:3px;font-size:12px}
.cs.ok{color:var(--good)} .cs.ok i{background:var(--good);color:#fff}
.cs small{font-size:12.5px;color:var(--muted)}
.cs-sep{width:14px;height:1px;background:var(--line-strong)}
.chc.cur{box-shadow:var(--shadow-md);border-color:var(--gold-500)}
.chc .n b{color:var(--gold)}
.flow{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line)}
@media (max-width:700px){.flow{grid-template-columns:1fr}}
.fstep{display:flex;gap:12px;align-items:center;padding:14px 16px;border-inline-end:1px solid var(--line)}
.fstep:last-child{border-inline-end:0}
@media (max-width:700px){.fstep{border-inline-end:0;border-bottom:1px solid var(--line)}.fstep:last-child{border-bottom:0}}
.fstep>div{flex:1;min-width:0}
.fstep b{display:block;font-size:16px;line-height:1.5}
.fstep span{font-size:13.5px;color:var(--muted)}
.fstep.cur{background:var(--sunk)} .fstep.cur .arch-n{background:var(--accent);color:var(--accent-ink)}
.fstep.ok .arch-n{background:var(--good);color:#fff}

/* practice groups */
.grp{margin-bottom:30px}
.grp-h{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.grp-h h3{font-size:21px;display:inline;padding:0 4px 0 24px;background:linear-gradient(to left,var(--hl-sand),transparent) no-repeat 0 75%/100% 36%}
.grp:nth-of-type(2) .grp-h h3{background-image:linear-gradient(to left,var(--hl-green),transparent)}
.grp:nth-of-type(3) .grp-h h3{background-image:linear-gradient(to left,var(--hl-plum),transparent)}
.grp-h span{color:var(--muted);font-size:14.5px}
.grp .modes{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
@media (max-width:700px){.grp .modes{grid-template-columns:1fr}}

/* onboarding */
.onb{z-index:90;align-items:center}
.onb-card{max-width:560px!important;text-align:right!important;justify-items:stretch!important;padding:30px 30px 22px!important;position:relative;max-height:calc(100vh - 40px);overflow:auto}
.onb-card h2{font-size:26px;text-align:center}
.onb-arch{justify-self:center;width:78px;height:96px;border-radius:999px 999px 0 0;background:var(--hero);color:var(--gold-400);display:grid;place-items:center;padding-top:10px;box-shadow:var(--shadow-md)}
.onb-body{display:grid;gap:10px;font-size:16.5px}
.onb-body p{margin:0}
.onb-list,.onb-steps{margin:0;padding-inline-start:22px;display:grid;gap:8px}
.onb-list li::marker,.onb-steps li::marker{color:var(--gold-500)}
.onb-facts{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);text-align:center}
.onb-facts span{padding:10px 4px;font-size:13px;color:var(--muted);border-inline-end:1px solid var(--line);display:grid}
.onb-facts span:last-child{border-inline-end:0}
.onb-facts b{font-family:var(--f-display);font-size:24px;color:var(--ink);line-height:1.3}
@media (max-width:520px){.onb-facts{grid-template-columns:1fr 1fr}.onb-facts span:nth-child(2){border-inline-end:0}.onb-facts span:nth-child(-n+2){border-bottom:1px solid var(--line)}}
.onb-tabs{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line)}
.onb-tabs div{padding:12px 14px;border-bottom:1px solid var(--line);display:grid}
.onb-tabs div:nth-child(odd){border-inline-end:1px solid var(--line)}
.onb-tabs div:nth-last-child(-n+2){border-bottom:0}
.onb-tabs b{font-size:17px} .onb-tabs span{font-size:13.5px;color:var(--muted);line-height:1.6}
.onb-goals{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.onb-goals .pill{padding:8px 12px;border-radius:var(--r-in);font-size:15px}
.onb-news{border-top:1px solid var(--line);padding-top:10px}
.onb-news:first-child{border-top:0;padding-top:0}
.onb-news ul{margin:6px 0 0;padding-inline-start:22px;display:grid;gap:4px}
.dots{display:flex;gap:6px;justify-content:center}
.dots i{width:7px;height:7px;border-radius:50%;background:var(--line-strong)}
.dots i.on{background:var(--gold-500);width:20px;border-radius:999px}
.onb-nav{display:flex;justify-content:space-between;align-items:center;gap:10px}
.onb-skip{position:absolute;top:14px;inset-inline-start:16px;border:0;background:none;color:var(--muted);font-size:14.5px}
.onb-skip:hover{color:var(--ink)}
.hero .plan{box-shadow:var(--shadow)}


/* locked states */
.chc.locked{opacity:.62;background:var(--sunk);border-top-color:var(--line-strong);box-shadow:none;cursor:not-allowed}
.chc.locked:hover{transform:none;box-shadow:none}
.chc.locked h3{color:var(--muted);display:flex;gap:8px;align-items:center}
.lk svg{width:18px;height:18px}
.lock-note{font-size:13.5px;color:var(--muted)}
.lrow.locked{opacity:.55;cursor:not-allowed;background:var(--sunk)}
.lrow.locked:hover{background:var(--sunk)}
.lrow .st svg,.arch-n svg{width:15px;height:15px}
.fstep.locked{opacity:.6}
.mode.locked{cursor:not-allowed;background:var(--sunk);filter:grayscale(1);opacity:.6}
.mode.locked:hover{background:var(--sunk)}
.mode .ic svg{width:19px;height:19px}
.grp-locked .grp-h h3{background-image:linear-gradient(to left,rgba(150,150,150,.35),transparent)!important;color:var(--muted)}
.lock-banner{display:flex;gap:10px;align-items:center;padding:12px 16px;margin-bottom:12px;background:var(--sunk);border:1px dashed var(--line-strong);color:var(--muted);font-size:14.5px;line-height:1.8}
.lock-banner svg{width:18px;height:18px;flex:none}
.pill.off{opacity:.45;cursor:not-allowed}
.stg.locked{opacity:.6}



/* the path (مساري) */
.mission{margin-bottom:6px}
.mission .mlbl{display:inline-block;font-size:13px;font-weight:700;line-height:1.7;color:var(--navy-900);background:var(--gold-400);padding:0 10px;margin-bottom:8px;border-radius:999px}
.mission .mlbl:empty{display:none}
.route{display:grid;gap:10px}
.rch{background:var(--card);border:1px solid var(--line);border-inline-start:4px solid var(--cc);border-radius:var(--r);scroll-margin-top:96px}
.rch>summary,.rch .rsum{list-style:none;display:grid;grid-template-columns:40px minmax(0,1fr) auto;gap:14px;align-items:center;padding:14px 16px;cursor:pointer}
.rch>summary::-webkit-details-marker{display:none}
.rch>summary:focus-visible{outline:2px solid var(--gold-500);outline-offset:2px}
.rch .rn{width:34px;height:40px;border-radius:999px 999px 0 0;display:grid;place-items:center;padding-top:4px;background:var(--sunk);color:var(--muted);font-weight:700;font-size:15px}
.rch .rn svg{width:15px;height:15px}
.rch.done .rn{background:var(--good);color:#fff}
.rch.cur{border-color:var(--gold-500);border-inline-start-color:var(--cc);box-shadow:var(--shadow-md)}
.rch.cur .rn{background:var(--accent);color:var(--accent-ink)}
.rch .rt{min-width:0;display:grid}
.rch .rt small{font-size:13.5px;color:var(--cc)}
.rch .rt small b{color:var(--gold)}
.rch .rt b.h{font-family:var(--f-display);font-size:19px;line-height:1.5}
.rch .rp{font-size:13.5px;color:var(--muted);white-space:nowrap;display:flex;align-items:center;gap:8px}
.rch .rp::after{content:"";width:8px;height:8px;border-inline-end:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(45deg);margin-top:-4px;transition:transform 160ms var(--ease)}
.rch[open] .rp::after{transform:rotate(225deg);margin-top:4px}
.rch.locked{opacity:.62;background:var(--sunk);cursor:not-allowed}
.rch.locked .rsum{cursor:not-allowed}
.rch.locked .rp::after{display:none}
.rbody{padding:0 16px 16px}
.rdiv{display:flex;align-items:center;gap:10px;margin:16px 0 8px;font-size:14px;color:var(--gold);font-family:var(--f-display);font-weight:700}
.rdiv::after{content:"";flex:1;height:1px;background:var(--line)}
.lrow .rv{font-size:13px;color:var(--muted);white-space:nowrap}
.phase h2{margin-top:6px}
.phase p{max-width:56ch}
.wrap-pts{margin:0;padding-inline-start:20px;display:grid;gap:6px;text-align:right;max-width:620px;font-size:15.5px}
.lib-sec{margin-top:26px}
@media (max-width:520px){.rch .rp span{display:none}.rch .rt b.h{font-size:17px}}

/* lesson hub: activity roadshow */
.lhub{display:grid;gap:18px}
.lhub-h{padding:26px 28px;display:grid;gap:10px;border-top:4px solid var(--cc)}
.lhub-h h1{font-size:30px;line-height:1.4}
.lsteps{display:grid;grid-template-columns:repeat(var(--n),minmax(0,1fr));gap:14px}
.lstep{position:relative;display:flex;flex-direction:column;gap:8px;padding:20px 18px 18px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);text-align:right;box-shadow:var(--shadow);transition:box-shadow 200ms var(--ease),transform 200ms var(--ease)}
.lstep:not(:last-child)::after{content:"";position:absolute;top:38px;inset-inline-end:-15px;width:16px;height:2px;background:var(--line-strong)}
.lstep.ok:not(:last-child)::after{background:var(--good)}
.lstep .sn{width:36px;height:44px;border-radius:999px 999px 0 0;display:grid;place-items:center;padding-top:5px;background:var(--sunk);color:var(--muted);font-weight:700;font-size:16px}
.lstep .sn svg{width:17px;height:17px}
.lstep .lab{font-size:13px;color:var(--muted)}
.lstep b{font-family:var(--f-display);font-size:20px;line-height:1.4}
.lstep .d{font-size:14px;color:var(--muted);line-height:1.7;flex:1}
.lstep .go{align-self:flex-start;margin-top:4px}
.lstep.ok .sn{background:var(--good);color:#fff}
.lstep.ok .res{font-size:13.5px;color:var(--good);font-weight:700}
.lstep.cur{border-color:var(--gold-500);box-shadow:var(--shadow-md);background:linear-gradient(to bottom,var(--gold-bg),var(--card) 60%)}
.lstep.cur .sn{background:var(--accent);color:var(--accent-ink)}
.lstep.cur:hover{transform:translateY(-2px)}
.lstep.lock{background:var(--sunk);box-shadow:none;opacity:.62;cursor:not-allowed}
.lstep.ok{cursor:pointer}
.lstep.ok:hover{box-shadow:var(--shadow-md)}
.lhub-note{font-size:14.5px;color:var(--muted);display:flex;gap:8px;align-items:center}
.lhub-done{padding:26px 24px;display:grid;gap:12px;justify-items:center;text-align:center;border-top:4px solid var(--good)}
.lhub-done .stars{font-size:28px;letter-spacing:6px}
.lhub-read{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;padding-top:4px;border-top:1px dashed var(--line);margin-top:4px;padding-block:16px 0}
@media (max-width:760px){.lsteps{grid-template-columns:1fr}.lstep:not(:last-child)::after{top:auto;bottom:-15px;inset-inline-end:auto;inset-inline-start:35px;width:2px;height:16px}.lhub-h h1{font-size:24px}}
/* course picker */
/* landing hero: full-bleed panoramic banner, trading-screen candlesticks, short copy on the reading side */
body{overflow-x:clip}
.lhero{position:relative;overflow:hidden;margin-inline:calc(50% - 50vw);margin-top:-28px;margin-bottom:34px;height:clamp(230px,30vw,380px);background:var(--navy-900);color:#fff;border-bottom:3px solid var(--gold-500)}
.lhero-img{position:absolute;inset:0;background:#0B1530 url(hero.jpg) 50% 50%/cover no-repeat;transform-origin:30% 50%;animation:lhPan 24s ease-in-out infinite alternate}
@keyframes lhPan{from{transform:scale(1)}to{transform:scale(1.07)}}
@media (prefers-reduced-motion:reduce){.lhero-img{animation:none}}
.lhero::after{content:"";position:absolute;inset:0;background:linear-gradient(270deg,rgba(10,26,54,.92) 0%,rgba(10,26,54,.7) 30%,rgba(10,26,54,.15) 60%,rgba(10,26,54,0) 100%)}
.lhero-in{position:relative;z-index:1;height:100%;max-width:1080px;margin:0 auto;display:grid;align-content:center;gap:10px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.lhero-in>*{max-width:560px}
.lhero .eyb{display:inline-flex;align-items:center;gap:10px;font-size:14px;color:var(--gold-400);font-family:var(--f-display);font-weight:700}
.lhero .eyb::before{content:"";width:28px;height:2px;background:var(--gold-400)}
.lhero h1{color:#fff;font-size:clamp(26px,3.6vw,44px);line-height:1.38}
.lhero h1 em{font-style:normal;color:var(--gold-400)}
.lhero p{margin:0;font-size:clamp(15px,1.5vw,18px);line-height:1.8;color:#E6E9F1}
@media (max-width:700px){
  .lhero{height:250px}
  .lhero-img{background-position:30% 50%}
  .lhero::after{background:linear-gradient(270deg,rgba(10,26,54,.9) 0%,rgba(10,26,54,.72) 55%,rgba(10,26,54,.3) 100%)}
  .lhero .eyb{font-size:12.5px}
}
.pick-h{scroll-margin-top:90px}
.chip.course{font-family:var(--f-display);font-weight:700;font-size:14.5px;border-color:var(--gold-500);background:var(--gold-bg);color:var(--ink);margin-inline-start:6px}
.top-in .brand small{white-space:nowrap;font-size:12px}
@media (max-width:1439px){.top-in .brand small{display:none}}
.courses{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.cgrp{margin-bottom:34px}
.cgrp-h{display:flex;align-items:baseline;gap:12px;margin-bottom:14px;border-bottom:1px solid var(--line);padding-bottom:8px}
.cgrp-h span{font-family:var(--f-display);font-weight:700;font-size:14px;color:var(--gold)}
.cgrp-h h2{font-size:22px}
@media (max-width:700px){.courses{grid-template-columns:1fr}}
.crs{background:var(--card);border:1px solid var(--line);border-top:4px solid var(--navy-800);padding:24px;display:flex;flex-direction:column;gap:12px;box-shadow:var(--shadow-md)}
.crs.cur{border-top-color:var(--gold-500)}
.crs h2{font-size:21px;line-height:1.5}
.crs-top{display:flex;justify-content:space-between;align-items:center}
.crs .code{font-family:var(--f-display);font-weight:700;font-size:15px;padding:2px 12px;background:var(--hero);color:var(--sand-100)}
.cfacts{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);text-align:center}
.cfacts span{padding:10px 4px;font-size:13px;color:var(--muted);display:grid;border-inline-end:1px solid var(--line)}
.cfacts span:last-child{border-inline-end:0}
.cfacts b{font-family:var(--f-display);font-size:24px;color:var(--ink);line-height:1.3}
.crs .btn{align-self:flex-start;margin-top:4px}
@media (max-width:520px){.chip.course{font-size:13px}}


/* footer */
.foot{background:var(--hero);color:#D6DCE8;margin-top:40px;border-top:3px solid var(--gold-500)}
.foot-in{max-width:1080px;margin:0 auto;padding-block:40px 28px;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));display:grid;grid-template-columns:2fr 1fr 1fr;gap:28px}
@media (max-width:860px){.foot-in{grid-template-columns:1fr 1fr}.foot-brand{grid-column:1/-1}}
@media (max-width:520px){.foot-in{grid-template-columns:1fr}}
.foot-logo{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.foot-logo .mark{width:28px;height:34px;border-radius:999px 999px 0 0;background:var(--gold-500);display:grid;place-items:end center;padding-bottom:6px}
.foot-logo b{font-family:var(--f-display);font-size:24px;color:#fff}
.foot-brand p{margin:0;font-size:14.5px;line-height:1.9;color:#B0BBD0;max-width:44ch}
.foot-col{display:flex;flex-direction:column;align-items:flex-start;gap:4px}
.foot-col h4{margin:0 0 6px;font-size:15px;color:var(--gold-400);font-family:var(--f-display)}
.foot-col button{border:0;background:none;padding:2px 0;color:#D6DCE8;font-size:14.5px;text-align:right}
.foot-col button:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.foot-bar{border-top:1px solid rgba(255,255,255,.12)}
.foot-bar-in{max-width:1080px;margin:0 auto;padding-block:14px calc(14px + env(safe-area-inset-bottom,0px));padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;font-size:13.5px;color:#B0BBD0}
.foot-bar .dev b{color:var(--gold-400);font-family:var(--f-display)}
.foot-bar .muted{color:#7A8AAE}
body.player .foot{display:none}
@media (max-width:860px){body:not(.focus) .foot{padding-bottom:64px}}
.legal{padding:8px 26px}
.legal section{padding:18px 0;border-bottom:1px solid var(--line)}
.legal section:last-child{border-bottom:0}
.legal h3{font-size:19px;margin-bottom:6px}
.legal p{margin:0;max-width:72ch}


/* logo */
.brand .logo{height:40px;width:auto;display:block}
.brand .lg-light{display:none}
:root[data-theme="dark"] .brand .lg-dark{display:none}
:root[data-theme="dark"] .brand .lg-light{display:block}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .brand .lg-dark{display:none}:root:not([data-theme="light"]) .brand .lg-light{display:block}}
.brand .tagline{border-inline-start:1px solid var(--line);padding-inline-start:12px}
@media (max-width:1439px){.brand .tagline{display:none}}
.foot-logo img{height:64px;width:auto;display:block;margin-bottom:12px}
@media (max-width:520px){.brand .logo{height:34px}}

@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
@media (max-width:520px){.brand small{display:none}.stage{padding:20px}.qtext{font-size:19px}.next{padding:22px}.next h2{font-size:24px}.ch-head h1{font-size:28px}.chip{padding:3px 9px;font-size:13px}.stat .v{font-size:23px}}

/* ---------- live site only: account button & auth dialog ---------- */
/* theme, sound and guide live in the user menu on the site */
#themeBtn,#soundBtn,#helpBtn{display:none!important}
.acmenu{position:fixed;z-index:85;min-width:236px;background:var(--card);border:1px solid var(--line-strong);border-radius:14px;box-shadow:var(--shadow-lg);padding:6px;display:grid;gap:2px;animation:rise 200ms var(--ease-arch)}
.acmenu-h{padding:8px 12px 10px;margin-bottom:4px;border-bottom:1px solid var(--line);font-size:13.5px;color:var(--muted);text-align:right;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.acmenu button{display:flex;align-items:center;gap:10px;width:100%;border:0;background:transparent;border-radius:10px;padding:10px 12px;font-size:15.5px;color:var(--ink);text-align:right}
.acmenu button svg{width:19px;height:19px;flex:none;color:var(--ink-2)}
.acmenu button:hover,.acmenu button:focus-visible{background:var(--line);outline:none}
.acmenu button.out,.acmenu button.out svg{color:var(--bad)}
.pref{display:grid;gap:8px;text-align:right}
.pref-l{font-size:15px;font-weight:700}
.pref-l .muted{font-weight:400;font-size:13.5px}
.pref-h{font-size:13.5px}
.seg{display:grid;grid-auto-flow:column;grid-auto-columns:1fr;border:1px solid var(--line-strong);border-radius:999px;padding:3px;gap:3px}
.seg button{border:0;background:transparent;border-radius:999px;padding:7px 8px;font-size:14.5px;color:var(--muted)}
.seg button.on{background:var(--ink);color:var(--bg);font-weight:700}
.ac-dl{margin:0;display:grid;gap:10px;text-align:right;border:1px solid var(--line);border-radius:var(--r-in);padding:12px 14px}
.ac-dl div{display:grid;gap:2px}
.ac-dl dt{font-size:13.5px;color:var(--muted)}
.ac-dl dd{margin:0;font-size:15.5px}
#acctBtn{position:relative}
#acctBtn.on{border-color:var(--gold-500);color:var(--gold)}
#acctBtn.on::after{content:"";position:absolute;top:5px;inset-inline-end:5px;width:7px;height:7px;border-radius:50%;background:var(--good)}
.modal .card.acct{position:relative;max-width:440px;justify-items:stretch;text-align:center;max-height:calc(100vh - 40px);overflow:auto}
.acct form{text-align:right}
.acct .actions{justify-content:center}
.acct h2{font-size:22px;margin:0;padding:0 28px}
.acct p{margin:0;line-height:1.8}
.acct .eyebrow{color:var(--gold)}
.acct form{display:grid;gap:8px}
.acct label{font-size:14px;color:var(--muted)}
.acct input[type=email],.acct input[type=password],.acct input[type=text]{width:100%;padding:11px 14px;border:1px solid var(--line-strong);border-radius:var(--r-in);background:var(--card);color:var(--ink);font-size:16px;direction:ltr;text-align:left}
.acct input:focus-visible{outline:2px solid var(--gold-500);outline-offset:1px}
.acct .btn.lg{margin-top:8px;width:100%;justify-content:center}
.acct .msg{font-size:14.5px;line-height:1.8}
.acct .msg:empty{display:none}
.acct .msg.ok{color:var(--good)} .acct .msg.no{color:var(--bad)}
.ac-x{position:absolute;top:10px;inset-inline-end:12px;width:34px;height:34px;border:0;background:transparent;font-size:24px;line-height:1;color:var(--muted);border-radius:50%}
.ac-x:hover{background:var(--line)}
.ac-tabs{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line-strong);border-radius:999px;padding:3px;gap:3px}
.ac-tabs button{border:0;background:transparent;border-radius:999px;padding:7px 10px;font-size:15px;color:var(--muted)}
.ac-tabs button.on{background:var(--ink);color:var(--bg);font-weight:700}
.pw{position:relative}
.pw input{padding-inline-end:70px}
.pw-eye{position:absolute;top:50%;transform:translateY(-50%);right:8px;border:0;background:transparent;color:var(--muted);font-size:13.5px;padding:6px 8px}
.ac-agree{display:flex;gap:8px;align-items:flex-start;font-size:14px;line-height:1.7;color:var(--ink)!important;margin-top:4px}
.ac-agree input{margin-top:5px;width:16px;height:16px;accent-color:var(--gold-500);flex:none}
.ac-agree a{color:var(--gold);text-decoration:underline}
.linkbtn{border:0;background:transparent;padding:0;color:var(--gold);text-decoration:underline;font-size:14px;justify-self:center}
.acct form .linkbtn{justify-self:start}
.linkbtn.danger{color:var(--bad)}
.ac-danger{border-top:1px solid var(--line);padding-top:12px}
.btn.danger{background:var(--bad);border-color:var(--bad);color:#fff}
.loading{display:grid;place-items:center;min-height:50vh;color:var(--muted);font-size:16px}