/* ==========================================================
   AURUM — Flashcards theme
   Cream / gold palette · Cairo + Playfair Display + Cinzel
   ========================================================== */

/* ---------- Local fonts (work offline, no CDN) ---------- */
@font-face{font-family:Cairo;font-weight:400;font-display:swap;src:url(../fonts/cairo-arabic-400-normal.woff2) format("woff2");unicode-range:U+0600-06FF,U+0750-077F,U+0870-088E,U+0890-0891,U+0897-08E1,U+08E3-08FF,U+200C-200E,U+2010-2011,U+204F,U+2E41,U+FB50-FDFF,U+FE70-FE74,U+FE76-FEFC}
@font-face{font-family:Cairo;font-weight:600;font-display:swap;src:url(../fonts/cairo-arabic-600-normal.woff2) format("woff2");unicode-range:U+0600-06FF,U+0750-077F,U+0870-088E,U+0890-0891,U+0897-08E1,U+08E3-08FF,U+200C-200E,U+2010-2011,U+204F,U+2E41,U+FB50-FDFF,U+FE70-FE74,U+FE76-FEFC}
@font-face{font-family:Cairo;font-weight:700;font-display:swap;src:url(../fonts/cairo-arabic-700-normal.woff2) format("woff2");unicode-range:U+0600-06FF,U+0750-077F,U+0870-088E,U+0890-0891,U+0897-08E1,U+08E3-08FF,U+200C-200E,U+2010-2011,U+204F,U+2E41,U+FB50-FDFF,U+FE70-FE74,U+FE76-FEFC}
@font-face{font-family:Cairo;font-weight:800;font-display:swap;src:url(../fonts/cairo-arabic-800-normal.woff2) format("woff2");unicode-range:U+0600-06FF,U+0750-077F,U+0870-088E,U+0890-0891,U+0897-08E1,U+08E3-08FF,U+200C-200E,U+2010-2011,U+204F,U+2E41,U+FB50-FDFF,U+FE70-FE74,U+FE76-FEFC}
@font-face{font-family:Cairo;font-weight:400;font-display:swap;src:url(../fonts/cairo-latin-400-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:Cairo;font-weight:600;font-display:swap;src:url(../fonts/cairo-latin-600-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:Cairo;font-weight:700;font-display:swap;src:url(../fonts/cairo-latin-700-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:Cairo;font-weight:800;font-display:swap;src:url(../fonts/cairo-latin-800-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Playfair Display";font-weight:600;font-display:swap;src:url(../fonts/playfair-display-latin-600-normal.woff2) format("woff2")}
@font-face{font-family:"Playfair Display";font-weight:700;font-display:swap;src:url(../fonts/playfair-display-latin-700-normal.woff2) format("woff2")}
@font-face{font-family:"Playfair Display";font-weight:700;font-style:italic;font-display:swap;src:url(../fonts/playfair-display-latin-700-italic.woff2) format("woff2")}
@font-face{font-family:Cinzel;font-weight:600;font-display:swap;src:url(../fonts/cinzel-latin-600-normal.woff2) format("woff2")}
@font-face{font-family:Cinzel;font-weight:700;font-display:swap;src:url(../fonts/cinzel-latin-700-normal.woff2) format("woff2")}
@font-face{font-family:"Plus Jakarta Sans";font-weight:400;font-display:swap;src:url(../fonts/plus-jakarta-sans-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:"Plus Jakarta Sans";font-weight:500;font-display:swap;src:url(../fonts/plus-jakarta-sans-latin-500-normal.woff2) format("woff2")}
@font-face{font-family:"Plus Jakarta Sans";font-weight:600;font-display:swap;src:url(../fonts/plus-jakarta-sans-latin-600-normal.woff2) format("woff2")}
@font-face{font-family:"Plus Jakarta Sans";font-weight:700;font-display:swap;src:url(../fonts/plus-jakarta-sans-latin-700-normal.woff2) format("woff2")}

/* ---------- Design tokens ---------- */
:root{
  --f-ar:Cairo,Tahoma,"Segoe UI",sans-serif;
  --f-title:"Playfair Display",Georgia,serif;
  --f-text:"Plus Jakarta Sans",Cairo,system-ui,sans-serif;
  --f-brand:Cinzel,Georgia,serif;

  --page:#f3ede2; --dot:#e5ce9c;
  --bg:#fcf8f2; --bg2:#f6efe2;
  --card:#faf5ed; --card2:#ffffff;
  --ink:#2c1a0e; --ink2:#694228; --mut:#7b6a58;
  --gold:#b8860b; --gold-ink:#8a6209; --gold1:#dfb260; --gold2:#bd8723;
  --a100:#f9f3e6; --a200:#f2e5cb; --a300:#e5ce9c; --a400:#d7af68; --a500:#cb9643;
  --teal:#147b86; --teal-soft:rgba(20,123,134,.10); --teal-line:rgba(20,123,134,.22);
  --line:rgba(229,206,156,.60); --line-strong:rgba(215,175,104,.60);
  --ok:#1f8f5f; --no:#c0392b;
  --glass:rgba(252,248,242,.92);
  --frame:rgba(120,72,20,.12);
  --ex-bg:rgba(249,238,214,.62);
  --shadow-card:0 20px 40px -15px rgba(105,66,40,.12),0 0 0 1px rgba(212,160,23,.18);
  --shadow-soft:0 4px 14px rgba(105,66,40,.07);
  --shadow-btn:0 10px 20px -5px rgba(184,134,11,.4);
  --shadow-phone:0 30px 70px -20px rgba(64,40,12,.35);
  --btn-grad:linear-gradient(135deg,#dfb260 0%,#bd8723 100%);
  --btn-grad-hover:linear-gradient(135deg,#e7be70 0%,#cb942d 100%);
  --lvl:var(--gold);
  color-scheme:light;
}
:root[data-theme="dark"]{
  --page:#120b05; --dot:#2b1d10;
  --bg:#1b120a; --bg2:#22170d;
  --card:#271b11; --card2:#302216;
  --ink:#f7ecd8; --ink2:#e5ce9c; --mut:#bfae94;
  --gold:#e3b95c; --gold-ink:#f0cb7a; --gold1:#dfb260; --gold2:#bd8723;
  --a100:#3a2815; --a200:#46321a; --a300:#5a4122; --a400:#7a5a2d; --a500:#cb9643;
  --teal:#52c6d2; --teal-soft:rgba(82,198,210,.12); --teal-line:rgba(82,198,210,.28);
  --line:rgba(229,206,156,.16); --line-strong:rgba(229,206,156,.30);
  --ok:#4fd39a; --no:#ff8a7a;
  --glass:rgba(27,18,10,.92);
  --frame:rgba(229,206,156,.12);
  --ex-bg:rgba(229,206,156,.07);
  --shadow-card:0 20px 40px -15px rgba(0,0,0,.55),0 0 0 1px rgba(229,206,156,.14);
  --shadow-soft:0 4px 14px rgba(0,0,0,.3);
  --shadow-phone:0 30px 70px -20px rgba(0,0,0,.7);
  color-scheme:dark;
}

/* ---------- Base ---------- */
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{height:100%;-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{
  margin:0;min-height:100%;font-family:var(--f-ar);color:var(--ink);line-height:1.7;
  background-color:var(--page);
  background-image:radial-gradient(var(--dot) .75px,transparent .75px);
  background-size:16px 16px;
  display:flex;align-items:center;justify-content:center;padding:16px;
  transition:background-color .3s;
}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3,h4,p{margin:0}
p{margin-bottom:8px}
a{color:var(--gold-ink)}
.ico{width:1em;height:1em;display:inline-block;vertical-align:-.14em;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}
.ltr,.en{direction:ltr;unicode-bidi:isolate}
.en{font-family:var(--f-title);font-weight:700;text-align:start}
.mut{color:var(--mut);font-size:.88rem}
.center{text-align:center}
.ok{color:var(--ok)}.bad{color:var(--no)}
.row{display:flex;gap:10px;align-items:center}
.wrap{flex-wrap:wrap}
.stack{display:flex;flex-direction:column;gap:12px}
.gold-text{background:linear-gradient(135deg,#d4a359 0%,#b8860b 50%,#8c6200 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}
:focus-visible{outline:3px solid color-mix(in srgb,var(--gold) 55%,transparent);outline-offset:2px;border-radius:12px}

/* ---------- Phone shell ---------- */
.phone{
  position:relative;width:100%;max-width:420px;
  height:min(860px,calc(100vh - 32px));height:min(860px,calc(100dvh - 32px));min-height:560px;
  background:var(--bg);border-radius:36px;border:6px solid var(--frame);
  box-shadow:var(--shadow-phone);overflow:hidden;
  display:flex;flex-direction:column;
}
@media (max-width:480px){
  body{padding:0;display:block;background-image:none;background-color:var(--bg)}
  .phone{max-width:none;height:100vh;height:100dvh;min-height:0;border:0;border-radius:0;box-shadow:none}
}

/* ---------- Header ---------- */
.topbar{
  flex:none;display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:calc(18px + env(safe-area-inset-top,0px)) 18px 12px;
  background:var(--glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);z-index:5;
}
@media (min-width:481px){.topbar{padding-top:20px}}
.tb-group{display:flex;align-items:center;gap:8px;min-width:96px}
.tb-group:last-child{justify-content:flex-end}
.brand{
  font-family:var(--f-brand);font-weight:700;font-size:24px;letter-spacing:.12em;line-height:1;
  background:linear-gradient(135deg,#d4a359 0%,#b8860b 50%,#8c6200 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;
  user-select:none;direction:ltr;
}
:root[data-theme="dark"] .brand{background:linear-gradient(135deg,#f0cb7a 0%,#e3b95c 55%,#c99a35 100%);-webkit-background-clip:text;background-clip:text}
.circle-btn{
  width:34px;height:34px;border-radius:50%;display:grid;place-items:center;font-size:15px;
  background:color-mix(in srgb,var(--card2) 85%,transparent);border:1px solid var(--a200);
  color:var(--ink2);box-shadow:var(--shadow-soft);transition:transform .15s,background .2s;
}
:root[data-theme="dark"] .circle-btn{border-color:var(--line-strong);color:var(--gold-ink)}
.circle-btn:hover{background:var(--card2);transform:scale(1.06)}
.circle-btn:active{transform:scale(.94)}
.circle-btn:disabled{opacity:.35;pointer-events:none}
.lvl-pill{
  display:inline-flex;align-items:center;justify-content:center;min-width:34px;
  background:var(--teal-soft);border:1px solid var(--teal-line);color:var(--teal);
  font-size:12px;font-weight:700;padding:4px 10px;border-radius:999px;line-height:1.4;direction:ltr;
}

/* ---------- Scroll area ---------- */
.screen{flex:1;min-height:0;overflow-y:auto;overflow-x:hidden;padding:14px 16px 20px;scroll-behavior:smooth;overscroll-behavior:contain;scrollbar-width:thin;scrollbar-color:var(--a300) transparent}
.screen::-webkit-scrollbar{width:6px}
.screen::-webkit-scrollbar-thumb{background:var(--a300);border-radius:6px}
.solo-wrap{display:flex;flex-direction:column;gap:12px;min-height:100%}
.fade-in{animation:fadeUp .35s cubic-bezier(.16,1,.3,1) both}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.slide-in-right{animation:slideInRight .35s cubic-bezier(.16,1,.3,1) both}
.slide-in-left{animation:slideInLeft .35s cubic-bezier(.16,1,.3,1) both}
@keyframes slideInRight{from{opacity:0;transform:translateX(-30px) scale(.97)}to{opacity:1;transform:none}}
@keyframes slideInLeft{from{opacity:0;transform:translateX(30px) scale(.97)}to{opacity:1;transform:none}}

/* ---------- Dock (sticky bottom actions) ---------- */
.dock{flex:none;display:flex;flex-direction:column;gap:10px;padding:10px 18px calc(18px + env(safe-area-inset-bottom,0px));background:var(--glass);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--line);animation:fadeUp .25s ease both}
.dock:empty{display:none}
.dock-row{display:flex;gap:12px;align-items:stretch}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--btn-grad);color:#fff;border:0;border-radius:16px;
  padding:11px 20px;font-weight:800;font-size:1rem;line-height:1.3;white-space:nowrap;
  text-shadow:0 1px 1px rgba(92,56,6,.38);
  box-shadow:var(--shadow-btn);transition:transform .25s cubic-bezier(.4,0,.2,1),box-shadow .25s,background .25s;
}
.btn:hover{background:var(--btn-grad-hover);transform:translateY(-2px);box-shadow:0 14px 24px -4px rgba(184,134,11,.5)}
.btn:active{transform:translateY(1px);box-shadow:0 4px 10px -2px rgba(184,134,11,.4)}
.btn:disabled{opacity:.5;pointer-events:none}
.btn.lg{height:56px;font-size:1.1rem;border-radius:18px;width:100%}
.btn.wide{width:100%}
.btn.sm{padding:7px 14px;font-size:.85rem;border-radius:12px;box-shadow:0 6px 14px -6px rgba(184,134,11,.45)}
.btn.ghost{
  background:color-mix(in srgb,var(--card2) 88%,transparent);color:var(--ink2);text-shadow:none;
  border:2px solid var(--line-strong);box-shadow:var(--shadow-soft);
}
:root[data-theme="dark"] .btn.ghost{color:var(--gold-ink)}
.btn.ghost:hover{background:var(--card2);border-color:var(--a400);color:var(--ink)}
.btn.ghost.sm{border-width:1.5px}
.btn.danger{background:linear-gradient(135deg,#d9594a,#b53a2c);box-shadow:0 10px 20px -6px rgba(181,58,44,.4)}
.btn .ico{font-size:1.05em}
.icon-btn{
  width:36px;height:36px;border-radius:50%;display:grid;place-items:center;font-size:16px;
  background:transparent;border:0;color:color-mix(in srgb,var(--ink2) 35%,transparent);transition:color .2s,transform .15s;
}
.icon-btn:hover{color:var(--a500)}
.icon-btn.on{color:var(--a500)}
.icon-btn.on .ico{fill:currentColor}
.icon-btn:active{transform:scale(.9)}
.speak-btn{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;font-size:16px;flex:none;
  background:var(--teal-soft);color:var(--teal);border:0;box-shadow:var(--shadow-soft);transition:all .2s;
}
.speak-btn:hover{background:var(--teal);color:#fff}
.speak-btn:active{transform:scale(.9)}
.nav-sq{
  width:52px;flex:none;border-radius:18px;display:grid;place-items:center;font-size:18px;
  background:var(--card2);border:1px solid var(--line-strong);color:var(--ink2);box-shadow:var(--shadow-soft);transition:background .2s,transform .1s;
}
:root[data-theme="dark"] .nav-sq{color:var(--gold-ink)}
.nav-sq:hover{background:var(--a100)}
.nav-sq:active{transform:scale(.95)}
.nav-sq:disabled{opacity:.35;pointer-events:none}
.known-btn-full{
  width:100%;height:48px;border-radius:16px;background:color-mix(in srgb,var(--card2) 88%,transparent);
  border:2px solid var(--line-strong);color:var(--ink2);font-weight:800;font-size:1rem;
  display:flex;align-items:center;justify-content:center;gap:8px;box-shadow:var(--shadow-soft);transition:background .2s,transform .1s;
}
:root[data-theme="dark"] .known-btn-full{color:var(--gold-ink)}
.known-btn-full:hover{background:var(--card2)}
.known-btn-full:active{transform:scale(.98)}
.known-btn-full .ico{color:var(--a500);font-size:1.1em}
.known-btn-full:disabled{opacity:.4;pointer-events:none}

/* ---------- Cards ---------- */
.card{
  background:var(--card);border-radius:24px;padding:20px;
  border:1px solid color-mix(in srgb,var(--a300) 45%,transparent);
  box-shadow:var(--shadow-card);margin:0;
}
.card h3{font-size:1.05rem;font-weight:800;margin-bottom:8px;color:var(--ink)}
.badge{
  display:inline-flex;align-items:center;gap:5px;font-size:11px;font-weight:700;letter-spacing:.02em;
  background:var(--a100);color:var(--ink2);padding:3px 10px;border-radius:8px;border:1px solid color-mix(in srgb,var(--a200) 70%,transparent);
}
:root[data-theme="dark"] .badge{color:var(--gold-ink);border-color:var(--line)}
.badge.soft{background:var(--a100)}

/* ---------- Progress ---------- */
.progress,.place-progress{height:6px;background:color-mix(in srgb,var(--a200) 70%,transparent);border-radius:999px;overflow:hidden}
.progress i,.place-progress i{display:block;height:100%;border-radius:inherit;background:linear-gradient(270deg,var(--a500),var(--a400));transition:width .3s ease}
.progress.big{height:9px}
.progress-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:0 6px 2px;font-size:12px;font-weight:600;color:color-mix(in srgb,var(--ink2) 70%,transparent)}
:root[data-theme="dark"] .progress-row{color:var(--mut)}
.progress-row .pr-text{font-weight:800;color:var(--ink2);white-space:nowrap}
:root[data-theme="dark"] .progress-row .pr-text{color:var(--gold-ink)}
.progress-row .progress{width:9rem;flex:none}
.progress-row .pr-right{color:var(--ok);font-weight:800;min-width:20px;text-align:end}

/* ---------- Flashcard (teach) ---------- */
.flash{display:flex;flex-direction:column;padding:22px}
.fl-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px}
.fl-cat{font-size:11px;font-weight:700;color:color-mix(in srgb,var(--ink2) 70%,transparent);letter-spacing:.04em;background:var(--a100);padding:2px 10px;border-radius:8px;border:1px solid color-mix(in srgb,var(--a200) 60%,transparent)}
:root[data-theme="dark"] .fl-cat{color:var(--gold-ink);border-color:var(--line)}
.fl-word{display:flex;align-items:center;justify-content:space-between;gap:12px;direction:ltr;padding:6px 0 16px;border-bottom:1px solid var(--line)}
.fl-word-main{display:flex;align-items:center;gap:12px;min-width:0}
.fl-word h2{font-family:var(--f-title);font-weight:700;font-size:clamp(30px,9vw,38px);line-height:1.15;color:var(--teal);letter-spacing:-.01em;overflow-wrap:anywhere}
.fl-ar{margin:14px 0 4px;font-size:clamp(21px,6vw,25px);font-weight:800;line-height:1.5;color:var(--ink);text-align:start}
.fl-ex{margin-top:10px;background:var(--ex-bg);padding:14px;border-radius:16px;border:1px solid color-mix(in srgb,var(--a200) 55%,transparent)}
.fl-en{direction:ltr;text-align:left;font-family:var(--f-text);font-weight:600;font-size:15px;line-height:1.65;color:var(--ink);margin:0}
.fl-exar{direction:rtl;text-align:right;font-size:14px;color:var(--mut);font-weight:600;margin:8px 0 0;line-height:1.7}
.fl-chips{margin-top:14px;padding-top:12px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.fl-chips .lbl{font-size:12px;font-weight:700;color:var(--mut);margin-inline-end:2px}
.chip{display:inline-block;padding:4px 10px;background:var(--card2);border:1px solid color-mix(in srgb,var(--a300) 60%,transparent);border-radius:10px;font-size:12px;font-weight:600;color:var(--ink2);direction:ltr;box-shadow:var(--shadow-soft);font-family:var(--f-text)}
:root[data-theme="dark"] .chip{color:var(--ink2)}
.fl-hint{font-size:12px;color:var(--mut);text-align:center;margin-top:2px}

/* ---------- Quiz question card ---------- */
.quiz{display:flex;flex-direction:column;gap:2px}
.qhead{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:8px;font-size:11.5px;font-weight:700;color:var(--mut)}
.qhead span:first-child{color:var(--ink2);background:var(--a100);padding:2px 10px;border-radius:8px;border:1px solid color-mix(in srgb,var(--a200) 60%,transparent);font-size:11px}
:root[data-theme="dark"] .qhead span:first-child{color:var(--gold-ink);border-color:var(--line)}
.qhead .ok{font-weight:800}
.quiz .progress{margin-bottom:10px}
.qprompt{font-size:1.02rem;font-weight:800;margin:6px 0 4px;color:var(--ink);line-height:1.6}
.qsub{font-size:1.35rem;font-weight:800;margin:4px 0 12px;line-height:1.55;text-align:center;overflow-wrap:anywhere}
.qsub .en,.qsub b.en{font-family:var(--f-title);font-size:clamp(30px,9vw,38px);color:var(--teal);display:block;text-align:center;line-height:1.2}
.qsub .mut{font-family:var(--f-text);font-weight:500;font-size:.85rem}
.qsub b{font-weight:800}
.opts{display:grid;gap:10px;margin:10px 0 4px}
.opt{
  display:flex;align-items:center;gap:12px;text-align:start;width:100%;
  background:var(--card2);color:var(--ink);border:1.5px solid color-mix(in srgb,var(--a300) 65%,transparent);
  border-radius:16px;padding:12px 14px;font-weight:600;font-size:.98rem;line-height:1.5;
  box-shadow:var(--shadow-soft);transition:border-color .15s,background .15s,transform .1s;
}
.opt:hover:not(:disabled){border-color:var(--a500);background:var(--a100)}
.opt:active:not(:disabled){transform:scale(.985)}
.opt:disabled{cursor:default}
.opt>span:last-child{flex:1;min-width:0;unicode-bidi:plaintext;text-align:start;overflow-wrap:anywhere}
.opt-key{
  display:grid;place-items:center;width:26px;height:26px;border-radius:8px;flex:none;
  background:var(--a100);color:var(--ink2);font-size:12px;font-weight:800;direction:ltr;
  border:1px solid color-mix(in srgb,var(--a200) 70%,transparent);
}
:root[data-theme="dark"] .opt-key{color:var(--gold-ink);border-color:var(--line)}
.opt.correct{border-color:var(--ok);background:color-mix(in srgb,var(--ok) 13%,var(--card2))}
.opt.correct .opt-key{background:var(--ok);color:#fff;border-color:var(--ok)}
.opt.wrong{border-color:var(--no);background:color-mix(in srgb,var(--no) 11%,var(--card2))}
.opt.wrong .opt-key{background:var(--no);color:#fff;border-color:var(--no)}
.opt.picked{border-color:var(--a500);background:color-mix(in srgb,var(--a400) 20%,var(--card2))}
.opt.picked .opt-key{background:var(--a500);color:#fff;border-color:var(--a500)}
.write-row{margin:10px 0}
.tx{
  width:100%;direction:ltr;text-align:left;padding:13px 16px;border-radius:16px;font-family:var(--f-text);font-size:1.05rem;font-weight:600;
  border:1.5px solid var(--line-strong);background:var(--card2);color:var(--ink);outline:0;box-shadow:inset 0 2px 4px rgba(0,0,0,.03);
}
.tx::placeholder{color:var(--mut);font-weight:500;font-size:.9rem}
.tx:focus{border-color:var(--a500);box-shadow:0 0 0 4px color-mix(in srgb,var(--a400) 25%,transparent)}
.tx:disabled{opacity:.7}
.feedback{border-radius:16px;padding:12px 14px;margin-top:12px;display:flex;flex-direction:column;gap:4px;font-size:.95rem}
.feedback.good{background:color-mix(in srgb,var(--ok) 11%,var(--card2));border:1px solid color-mix(in srgb,var(--ok) 38%,transparent)}
.feedback.bad{background:color-mix(in srgb,var(--no) 9%,var(--card2));border:1px solid color-mix(in srgb,var(--no) 38%,transparent)}
.feedback.good>b{color:var(--ok)}.feedback.bad>b{color:var(--no)}
.feedback .en{display:inline;font-size:1.02rem}
.feedback p.mut{margin:2px 0 0;font-size:.84rem;line-height:1.6}
.feedback .row{justify-content:space-between;min-height:0}
.xp{font-size:12px;font-weight:800;color:var(--gold-ink)}
.auto-hint{font-size:11.5px;color:var(--mut);font-weight:700}
.known-row{display:flex;justify-content:center;margin-top:14px}
.known-row .btn{opacity:.95}
.task-box{background:var(--ex-bg);border:1px solid var(--line);border-radius:16px;padding:14px;margin:12px 0}
.chk{display:flex;gap:10px;align-items:flex-start;cursor:pointer}
.chk input{width:20px;height:20px;accent-color:var(--a500);margin-top:5px;flex:none}
.chk.done span{opacity:.55;text-decoration:line-through}

/* old "train card" faces (quick card kind) */
.train-face{text-align:center;padding:20px 12px;margin:10px 0;background:var(--ex-bg);border:1px solid var(--line);border-radius:18px}
.train-face h2{font-family:var(--f-title);font-size:clamp(30px,9vw,40px);color:var(--teal);margin:10px 0 6px;direction:ltr}
.train-face .example{font-family:var(--f-text);font-weight:600;font-size:.95rem;margin:6px 0}
.train-answer{margin-top:12px;padding:12px;border:1px dashed var(--a400);border-radius:14px;background:var(--card2)}
.ar-big{font-size:1.5rem;font-weight:800;color:var(--ink)}
.ex-ar{font-size:.9rem;color:var(--mut);margin:0 0 6px;font-weight:600;text-align:center}
.icon{width:38px;height:38px;border-radius:50%;display:inline-grid;place-items:center;border:0;background:var(--teal-soft);color:var(--teal);font-size:16px}
.icon:hover{background:var(--teal);color:#fff}

/* ---------- Welcome / level picker ---------- */
.hero-card{text-align:center;padding:30px 22px;display:flex;flex-direction:column;gap:14px;align-items:center;background:
  radial-gradient(260px 160px at 50% -30px,color-mix(in srgb,var(--a400) 24%,transparent),transparent 70%),var(--card)}
.hero-badge{width:64px;height:64px;border-radius:20px;display:grid;place-items:center;font-size:30px;color:#fff;background:var(--btn-grad);box-shadow:var(--shadow-btn);text-shadow:none}
.hero-badge .ico{stroke-width:1.8;fill:rgba(255,255,255,.25)}
.hero-title{font-size:1.5rem;font-weight:800;line-height:1.4}
.hero-title .brandword{font-family:var(--f-brand);letter-spacing:.1em;display:inline-block;direction:ltr}
.hero-card .mut{max-width:300px;line-height:1.8}
.hero-card .stack{width:100%;margin-top:6px}
.page-title{text-align:center;padding:4px 0 2px}
.page-title h2{font-size:1.35rem;font-weight:800}
.lvpick-list{display:flex;flex-direction:column;gap:10px}
.lvpick{
  --c:var(--gold);display:flex;align-items:center;gap:14px;width:100%;text-align:start;padding:12px 14px;
  background:var(--card2);border:1.5px solid color-mix(in srgb,var(--c) 38%,var(--line-strong));border-radius:18px;box-shadow:var(--shadow-soft);
  transition:transform .12s,border-color .15s,background .15s;
}
.lvpick:hover{border-color:var(--c);background:color-mix(in srgb,var(--c) 7%,var(--card2))}
.lvpick:active{transform:scale(.985)}
.lvpick .lv-id{width:52px;height:46px;border-radius:14px;display:grid;place-items:center;flex:none;font-family:var(--f-title);font-weight:700;font-size:1.15rem;direction:ltr;
  background:color-mix(in srgb,var(--c) 16%,var(--card2));color:color-mix(in srgb,var(--c) 70%,var(--ink));border:1px solid color-mix(in srgb,var(--c) 40%,transparent)}
.lvpick .lv-txt{flex:1;min-width:0;display:flex;flex-direction:column;line-height:1.4}
.lvpick .lv-txt b{font-size:1rem;font-weight:800;color:var(--ink)}
.lvpick .lv-txt small{font-size:.76rem;color:var(--mut);font-weight:600}
.lvpick .lv-go{color:var(--mut);font-size:16px;opacity:.7}
.lvpick.current{border-color:var(--c);background:color-mix(in srgb,var(--c) 9%,var(--card2))}
.lvpick-grid{display:flex;flex-direction:column;gap:10px}
.solo-intro{text-align:center;display:flex;flex-direction:column;gap:12px;align-items:center;padding:24px 20px}
.solo-intro h2{font-size:1.25rem;font-weight:800}
.solo-intro .mut{line-height:1.8}
.solo-manual h3{margin-bottom:10px}
.sec-title{display:flex;align-items:center;gap:10px;font-size:.95rem;font-weight:800;color:var(--ink2);margin:6px 2px 0}
:root[data-theme="dark"] .sec-title{color:var(--gold-ink)}
.sec-title::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,var(--line-strong),transparent)}

/* ---------- Solo stats / summary ---------- */
.solo-stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.solo-stat{background:var(--card2);border:1px solid var(--line);border-radius:16px;padding:10px 8px;text-align:center;box-shadow:var(--shadow-soft)}
.solo-stat b{display:block;font-size:1.2rem;color:var(--gold-ink);line-height:1.3;direction:ltr;font-weight:800}
.solo-stat span{font-size:11px;color:var(--mut);font-weight:700;display:block;margin-top:2px}
.solo-levels{display:flex;gap:6px;flex-wrap:wrap;margin-top:12px;justify-content:center}
.solo-lv{display:inline-flex;align-items:center;gap:5px;font-size:11px;font-weight:800;direction:ltr;
  border:1px solid color-mix(in srgb,var(--c,var(--gold)) 40%,var(--line));color:color-mix(in srgb,var(--c,var(--gold)) 62%,var(--ink));
  background:var(--card2);border-radius:999px;padding:2px 10px;opacity:.72}
.solo-lv::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c,var(--gold));flex:none}
.solo-lv.done{opacity:1;background:color-mix(in srgb,var(--c,var(--gold)) 15%,var(--card2))}
.solo-lv.done::after{content:"✓";font-size:9px}
.solo-lv.current{opacity:1;box-shadow:0 0 0 2px color-mix(in srgb,var(--c,var(--gold)) 35%,transparent)}
.live-strip{display:flex;flex-wrap:wrap;gap:6px 14px;align-items:center;justify-content:center;font-size:11.5px;color:var(--mut);padding:2px 6px}
.live-strip b{color:var(--gold-ink);font-weight:800}
.result{text-align:center;padding:24px 18px}
.result h2{font-size:1.35rem;font-weight:800;margin:8px 0 2px}
.big-score{font-family:var(--f-title);font-size:3.2rem;font-weight:700;line-height:1.15;color:var(--gold-ink);margin:4px 0}
.result.good .big-score{color:var(--ok)}
.result .row{justify-content:center;margin-top:14px}
.solo-summary .solo-stat-grid{margin-top:14px}
.solo-count{font-size:12.5px;color:var(--mut);margin:12px 0 4px}
details{margin-top:12px;text-align:start}
summary{cursor:pointer;color:var(--gold-ink);font-weight:800;font-size:.88rem}
.wrong-item{display:flex;flex-direction:column;gap:1px;border:1px solid var(--line);border-radius:12px;padding:8px 12px;margin:6px 0;background:var(--card2);text-align:start}
.empty{text-align:center;color:var(--mut);padding:26px}

/* ---------- Placement test ---------- */
.solo-sessionbar{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:10px 14px;border-radius:18px}
.solo-sessionbar .mut{font-size:.8rem;text-align:end}
.place-passage{background:var(--ex-bg);border:1px solid var(--line);border-radius:16px;padding:14px 16px;margin:10px 0;line-height:1.9;font-size:.92rem;text-align:start;direction:ltr;font-family:var(--f-text)}
.place-passage h4{margin:0 0 6px;font-size:12px;color:var(--mut);font-weight:800}
.place-opt.idk{color:var(--mut);font-style:italic;background:var(--bg2)}
.place-note{font-size:11.5px;color:var(--mut);margin:10px 0 0;line-height:1.7}
.place-report .hero{text-align:center;background:radial-gradient(240px 140px at 50% -20px,color-mix(in srgb,var(--lvl) 22%,transparent),transparent 70%),var(--card)}
.place-report .hero h1{font-family:var(--f-title);font-size:clamp(40px,12vw,56px);line-height:1.05;margin:8px 0;direction:ltr;font-weight:700}
.place-report .band{font-size:12px;color:var(--mut);margin-top:6px}
.score-line{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin-top:12px}
.score-line span{background:var(--card2);border:1px solid var(--line);border-radius:12px;padding:6px 10px;font-size:11.5px;color:var(--mut);font-weight:700}
.score-line b{color:var(--ink);font-size:.95rem;direction:ltr;display:inline-block}
.place-report table{width:100%;border-collapse:collapse;font-size:.8rem}
.place-report th,.place-report td{border-bottom:1px solid var(--line);padding:7px 5px;text-align:start;vertical-align:top}
.place-report th{font-size:10.5px;color:var(--mut);font-weight:800;background:var(--a100)}
.place-report td.ltr{direction:ltr;font-weight:800;color:var(--ink)}
.place-report tr:last-child td{border-bottom:0}
.place-report .err-item{background:var(--card2);border:1px solid var(--line);border-radius:14px;padding:10px 12px;margin-top:8px;font-size:.82rem;line-height:1.8}
.place-report .err-item .en{direction:ltr;display:block;text-align:start;font-family:var(--f-text);font-weight:600}
.place-report .err-item .rule{color:var(--mut)}
.place-report .err-item .warn{color:var(--no);font-weight:800}
.place-report .err-item .good{color:var(--ok);font-weight:800}
.place-report .chips{display:flex;gap:6px;flex-wrap:wrap;margin-top:6px}
.place-report .pill{font-size:10.5px;font-weight:800;border:1px solid var(--line);border-radius:999px;padding:2px 9px;color:var(--mut);background:var(--card)}
.place-report .pill.bad{color:var(--no);border-color:color-mix(in srgb,var(--no) 38%,transparent)}
.place-report .pill.good{color:var(--ok);border-color:color-mix(in srgb,var(--ok) 38%,transparent)}
.place-report .week{background:var(--card2);border:1px solid var(--line);border-radius:14px;padding:10px 12px;margin-top:8px;font-size:.84rem}
.place-report .week b{color:var(--gold-ink)}
.place-report .res-grid{display:grid;grid-template-columns:1fr;gap:8px}
.place-report .res-grid a{display:block;background:var(--card2);border:1px solid var(--line);border-radius:14px;padding:10px 12px;font-size:.85rem;font-weight:800;color:var(--ink);text-decoration:none}
.place-report .res-grid a span{display:block;font-size:11px;color:var(--mut);font-weight:600;margin-top:2px}
ul.plain{margin:6px 0 4px;padding-inline-start:20px;color:var(--mut);font-size:.88rem}
ul.plain li{margin:5px 0;line-height:1.7}

/* ---------- Overlay sheets (menu / confirm / saved words) ---------- */
.overlay{position:absolute;inset:0;z-index:50;background:rgba(32,18,6,.5);backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);display:flex;align-items:flex-end;justify-content:center;animation:fadeIn .2s ease both}
.overlay.center{align-items:center;padding:20px}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.sheet{width:100%;background:var(--bg);border-radius:28px 28px 0 0;padding:18px 18px calc(22px + env(safe-area-inset-bottom,0px));box-shadow:0 -20px 50px -20px rgba(0,0,0,.4);display:flex;flex-direction:column;gap:10px;max-height:88%;animation:sheetUp .28s cubic-bezier(.16,1,.3,1) both;border-top:1px solid var(--line-strong)}
.overlay.center .sheet{border-radius:26px;border:1px solid var(--line-strong);animation:popIn .22s cubic-bezier(.16,1,.3,1) both}
@keyframes sheetUp{from{transform:translateY(40px);opacity:0}to{transform:none;opacity:1}}
@keyframes popIn{from{transform:scale(.94);opacity:0}to{transform:none;opacity:1}}
.sheet-grip{width:44px;height:4px;border-radius:4px;background:var(--line-strong);margin:0 auto 4px}
.sheet-title{display:flex;align-items:center;justify-content:space-between;font-size:1.05rem;font-weight:800;color:var(--ink);padding:2px 4px}
.sheet-msg{font-size:.95rem;line-height:1.8;color:var(--ink);padding:2px 4px}
.sheet-item{
  display:flex;align-items:center;gap:12px;width:100%;text-align:start;padding:13px 14px;border-radius:16px;
  background:var(--card2);border:1px solid var(--line);color:var(--ink);font-weight:700;font-size:.97rem;box-shadow:var(--shadow-soft);transition:background .15s,transform .1s;
}
.sheet-item:hover{background:var(--a100)}
.sheet-item:active{transform:scale(.985)}
.sheet-item .ico{font-size:18px;color:var(--a500)}
.sheet-item small{margin-inline-start:auto;color:var(--mut);font-weight:700;font-size:.78rem}
.sheet-item.primary{background:var(--btn-grad);color:#fff;border:0;box-shadow:var(--shadow-btn);text-shadow:0 1px 1px rgba(92,56,6,.38)}
.sheet-item.primary .ico{color:#fff}
.sheet-item.danger{color:var(--no)}
.sheet-item.danger .ico{color:var(--no)}
.sheet-actions{display:flex;gap:10px;margin-top:4px}
.sheet-actions .btn{flex:1}
.known-search{width:100%;padding:11px 14px;border-radius:14px;border:1.5px solid var(--line-strong);background:var(--card2);color:var(--ink);outline:0}
.known-search:focus{border-color:var(--a500)}
.known-list{overflow-y:auto;min-height:60px;scrollbar-width:thin;scrollbar-color:var(--a300) transparent;padding-inline-end:2px}
.known-item{display:flex;align-items:center;gap:10px;justify-content:space-between;padding:9px 2px;border-bottom:1px solid var(--line)}
.known-item .en{font-size:1.05rem;color:var(--teal);min-width:0;overflow-wrap:anywhere}
.known-item .mut{flex:1;text-align:start;font-size:.82rem;min-width:0}

/* ---------- Toast ---------- */
.toast{
  position:fixed;top:28px;left:50%;transform:translate(-50%,-14px);z-index:200;max-width:min(92vw,380px);
  background:#2c1a0e;color:#fdecc4;padding:11px 20px;border-radius:999px;font-size:.88rem;font-weight:700;line-height:1.5;text-align:center;
  border:1px solid rgba(215,175,104,.35);box-shadow:0 18px 40px -10px rgba(0,0,0,.45);
  opacity:0;pointer-events:none;transition:opacity .25s,transform .25s;
}
:root[data-theme="dark"] .toast{background:#f3e3bd;color:#2c1a0e;border-color:rgba(184,134,11,.4)}
.toast.show{opacity:1;transform:translate(-50%,0)}
@media (max-width:480px){.toast{top:calc(16px + env(safe-area-inset-top,0px))}}

/* ---------- Confetti ---------- */
.confetti{position:fixed;inset:0;pointer-events:none;z-index:300}
.confetti span{position:absolute;top:-16px;left:var(--x);width:8px;height:14px;border-radius:2px;background:var(--a500);animation:fall 2.2s linear forwards;animation-delay:var(--d);transform:rotate(var(--r))}
.confetti span:nth-child(3n){background:var(--teal)}
.confetti span:nth-child(3n+1){background:var(--gold1)}
.confetti span:nth-child(4n){background:var(--ok)}
@keyframes fall{to{transform:translateY(108vh) rotate(760deg);opacity:0}}

/* ---------- Install banner ---------- */
.install-bar{position:absolute;left:14px;right:14px;bottom:14px;z-index:40;display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:18px;background:var(--card2);border:1px solid var(--line-strong);box-shadow:var(--shadow-card);font-size:.85rem;font-weight:700;animation:fadeUp .3s ease both}
.install-bar span{flex:1}
.install-bar .x{background:none;border:0;font-size:20px;color:var(--mut);line-height:1;padding:0 4px}

/* ---------- Small screens & motion ---------- */
@media (max-height:640px){
  .topbar{padding-top:12px;padding-bottom:8px}
  .flash{padding:16px}
  .fl-word{padding-bottom:10px}
  .dock{padding-top:8px;padding-bottom:12px}
  .btn.lg{height:50px}
}
@media (max-width:360px){
  .screen{padding-inline:12px}
  .brand{font-size:21px}
  .tb-group{min-width:84px;gap:6px}
  .circle-btn{width:31px;height:31px}
  .card{padding:16px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}

/* ---------- Flashcard: example row ---------- */
.fl-ex-row{display:flex;gap:10px;align-items:flex-start;direction:ltr}
.fl-ex-row .fl-en{flex:1;min-width:0}
.speak-btn.sm{width:30px;height:30px;font-size:13px;box-shadow:none}

/* bidi fixes */
.xp{direction:ltr;unicode-bidi:isolate}
.feedback p.mut{unicode-bidi:plaintext;text-align:start}
.result.good,.result.bad{color:var(--ink)}
.result.bad h2{color:var(--no)}
.result.good h2{color:var(--ok)}
.result.bad .big-score{color:var(--gold-ink)}
.solo-stat b{direction:rtl;unicode-bidi:plaintext}
.solo-count{color:var(--mut)}
.qprompt{unicode-bidi:plaintext;text-align:start}
.place-passage{unicode-bidi:plaintext}
.feedback .en,.feedback span,.feedback p{color:var(--ink)}
.feedback p.mut{color:var(--mut)}
.feedback .xp{color:var(--gold-ink)}

/* --- User-requested readability tweaks --- */
html { font-size: 19px; }
.btn:empty, button:empty { display: none !important; }
.card { border: 0 !important; box-shadow: none !important; background: transparent !important; }