:root{
  --bg:#f6f7fb;--surface:#fff;--surface-2:#edeff4;--surface-3:#e1e4ed;
  --text:#282e3e;--text-2:#586380;--text-3:#939bb4;--border:#d9dde8;
  --primary:#4255ff;--primary-press:#3341d6;--primary-text:#4255ff;--primary-soft:#e8ebff;
  --success:#18ae79;--success-soft:#dff6ec;--warn:#ff8a3d;--warn-soft:#ffeee1;
  --danger:#ff5c4d;--danger-soft:#ffe6e3;--yellow:#ffcd1f;
  --shadow:0 .25rem 1rem rgba(40,46,62,.10);--shadow-lg:0 .5rem 1.75rem rgba(40,46,62,.16);
  --radius:16px;--radius-sm:10px;
  --safe-t:env(safe-area-inset-top,0px);--safe-b:env(safe-area-inset-bottom,0px);
  --safe-l:env(safe-area-inset-left,0px);--safe-r:env(safe-area-inset-right,0px);
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0a092d;--surface:#2e3856;--surface-2:#252c47;--surface-3:#3a4466;
  --text:#f6f7fb;--text-2:#d9dde8;--text-3:#939bb4;--border:#3d4769;
  --primary:#4255ff;--primary-press:#5c6cff;--primary-text:#a8b1ff;--primary-soft:#262b6b;
  --success:#2fd194;--success-soft:#123d3a;--warn:#ff9f5a;--warn-soft:#4a2f2a;
  --danger:#ff7a6b;--danger-soft:#4b2733;
  --shadow:0 .25rem 1rem rgba(0,0,0,.35);--shadow-lg:0 .5rem 1.75rem rgba(0,0,0,.5);
  color-scheme:dark;
}}
:root[data-theme="dark"]{
  --bg:#0a092d;--surface:#2e3856;--surface-2:#252c47;--surface-3:#3a4466;
  --text:#f6f7fb;--text-2:#d9dde8;--text-3:#939bb4;--border:#3d4769;
  --primary:#4255ff;--primary-press:#5c6cff;--primary-text:#a8b1ff;--primary-soft:#262b6b;
  --success:#2fd194;--success-soft:#123d3a;--warn:#ff9f5a;--warn-soft:#4a2f2a;
  --danger:#ff7a6b;--danger-soft:#4b2733;
  --shadow:0 .25rem 1rem rgba(0,0,0,.35);--shadow-lg:0 .5rem 1.75rem rgba(0,0,0,.5);
  color-scheme:dark;
}

*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%;overflow-x:hidden;overflow-x:clip;overscroll-behavior-x:none}
html{background:var(--bg)}
body{
  background:var(--bg);color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:16px;line-height:1.4;-webkit-font-smoothing:antialiased;
  -webkit-user-select:none;user-select:none;touch-action:manipulation;
  overscroll-behavior-y:none;
}
input,textarea,[contenteditable]{-webkit-user-select:text;user-select:text}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
input,textarea,select{font:inherit;color:inherit}
svg{display:block}
#app{min-height:100dvh;display:flex;flex-direction:column}

/* ---------- top bar ---------- */
.topbar{
  position:sticky;top:0;z-index:20;
  padding:calc(var(--safe-t) + 8px) calc(var(--safe-r) + 12px) 8px calc(var(--safe-l) + 12px);
  background:color-mix(in srgb,var(--bg) 88%,transparent);
  -webkit-backdrop-filter:saturate(1.6) blur(16px);backdrop-filter:saturate(1.6) blur(16px);
  display:flex;align-items:center;gap:8px;min-height:56px;
}
.topbar h1{font-size:17px;font-weight:700;margin:0;flex:1;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar .brand{font-size:26px;font-weight:800;text-align:left;letter-spacing:-.02em;color:var(--primary-text)}
.icon-btn{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;color:var(--text-2);flex:none}
.icon-btn:active{background:var(--surface-3)}
.icon-btn svg{width:24px;height:24px}
.icon-btn.primary{background:var(--primary);color:#fff}
.icon-btn.primary:active{background:var(--primary-press)}
.spacer{width:40px;flex:none}

.page{
  flex:1;width:100%;max-width:780px;margin:0 auto;
  padding:8px calc(var(--safe-r) + 16px) calc(var(--safe-b) + 24px) calc(var(--safe-l) + 16px);
}
.page.with-tabs{padding-bottom:calc(var(--safe-b) + 96px)}
.section-title{font-size:15px;font-weight:700;color:var(--text-2);margin:24px 4px 10px;display:flex;justify-content:space-between;align-items:center}

/* ---------- bottom tabs ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:calc(-1 * var(--vgap,0px));z-index:30;
  background:var(--surface);border-top:1px solid var(--border);
  padding:6px calc(var(--safe-r) + 8px) calc(var(--safe-b) + 6px) calc(var(--safe-l) + 8px);
  display:flex;justify-content:space-around;
}
.tab{display:flex;flex-direction:column;align-items:center;gap:2px;font-size:11px;font-weight:600;color:var(--text-3);padding:4px 18px;min-width:72px}
.tab svg{width:26px;height:26px}
.tab.active{color:var(--primary-text)}
.tab.create svg{width:36px;height:36px;color:var(--primary-text)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 20px;border-radius:999px;font-weight:700;font-size:16px;
  background:var(--primary);color:#fff;transition:transform .08s,background .15s;
}
.btn:active{transform:scale(.97);background:var(--primary-press)}
.btn svg{width:20px;height:20px}
.btn.block{width:100%}
.btn.ghost{background:var(--surface);color:var(--text);box-shadow:inset 0 0 0 2px var(--border)}
.btn.ghost:active{background:var(--surface-2)}
.btn.soft{background:var(--primary-soft);color:var(--primary-text)}
.btn.danger{background:var(--danger-soft);color:var(--danger)}
.btn.small{min-height:36px;padding:0 14px;font-size:14px}
.btn[disabled]{opacity:.45;pointer-events:none}
.row{display:flex;gap:10px;align-items:center}
.row.wrap{flex-wrap:wrap}
.stack{display:flex;flex-direction:column;gap:10px}

/* ---------- cards / sets ---------- */
.card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow)}
.set-item{
  display:block;width:100%;text-align:left;padding:16px 18px;margin-bottom:12px;
  background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);
  border-bottom:4px solid transparent;transition:border-color .15s,transform .08s;
}
.set-item:active{transform:scale(.985);border-bottom-color:var(--primary)}
.set-item h3{margin:0 0 8px;font-size:17px;font-weight:700;overflow-wrap:anywhere}
.set-meta{display:flex;align-items:center;gap:8px;color:var(--text-2);font-size:13px;font-weight:600}
.pill{background:var(--surface-2);color:var(--text-2);border-radius:999px;padding:3px 10px;font-size:12px;font-weight:700}
.mini-progress{height:6px;border-radius:3px;background:var(--surface-2);overflow:hidden;display:flex;margin-top:12px}
.mini-progress i{display:block;height:100%}
.mini-progress .g{background:var(--success)}
.mini-progress .o{background:var(--warn)}

.search{
  display:flex;align-items:center;gap:8px;background:var(--surface);border-radius:999px;
  padding:0 16px;height:46px;box-shadow:var(--shadow);margin:4px 0 8px;
}
.search svg{width:20px;height:20px;color:var(--text-3);flex:none}
.search input{flex:1;border:0;outline:0;background:none;font-size:16px;min-width:0}

.empty{text-align:center;padding:48px 16px;color:var(--text-2)}
.empty .art{width:120px;height:120px;margin:0 auto 18px}
.empty h2{color:var(--text);margin:0 0 8px;font-size:22px}
.empty p{margin:0 0 22px}

/* ---------- set view ---------- */
.set-head h2{font-size:26px;margin:4px 0 6px;letter-spacing:-.01em;overflow-wrap:anywhere}
.set-head p{margin:0 0 6px;color:var(--text-2);overflow-wrap:anywhere}
.preview-card{
  height:200px;border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);
  display:grid;place-items:center;padding:20px;text-align:center;font-size:22px;font-weight:600;
  margin:16px 0 4px;perspective:1200px;position:relative;cursor:pointer;
}
.modes{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:16px}
.mode{
  display:flex;align-items:center;gap:12px;padding:14px;border-radius:var(--radius);
  background:var(--surface);box-shadow:var(--shadow);font-weight:700;text-align:left;
  border-bottom:4px solid transparent;transition:transform .08s,border-color .15s;
}
.mode:active{transform:scale(.97);border-bottom-color:var(--primary)}
.mode .ic{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;flex:none}
.mode .ic svg{width:24px;height:24px}
.mode small{display:block;font-weight:500;color:var(--text-2);font-size:12px}
.ic.blue{background:var(--primary-soft);color:var(--primary-text)}
.ic.green{background:var(--success-soft);color:var(--success)}
.ic.orange{background:var(--warn-soft);color:var(--warn)}
.ic.pink{background:#ffe3f3;color:#e0368c}
:root[data-theme="dark"] .ic.pink{background:#4a2342;color:#ff7ac0}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .ic.pink{background:#4a2342;color:#ff7ac0}}

.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:16px}
.stat{background:var(--surface);border-radius:var(--radius-sm);padding:10px 12px;box-shadow:var(--shadow)}
.stat b{display:block;font-size:20px}
.stat span{font-size:12px;color:var(--text-2);font-weight:600}
.stat.g b{color:var(--success)} .stat.o b{color:var(--warn)}

.term-row{
  display:flex;gap:12px;align-items:flex-start;background:var(--surface);border-radius:var(--radius-sm);
  padding:14px 10px 14px 16px;margin-bottom:8px;box-shadow:var(--shadow);
}
.term-row .t{flex:1;font-weight:600;overflow-wrap:anywhere;white-space:pre-wrap}
.term-row .d{flex:1.3;color:var(--text);overflow-wrap:anywhere;white-space:pre-wrap;padding-left:12px;border-left:2px solid var(--surface-2)}
.term-row .acts{display:flex;flex-direction:column;gap:2px;margin-top:-8px}
.term-row .icon-btn{width:34px;height:34px}
.term-row .icon-btn svg{width:20px;height:20px}
.star-on{color:var(--yellow)!important}
.star-on svg{fill:var(--yellow)}
@media (max-width:420px){.term-row{flex-wrap:wrap}.term-row .t,.term-row .d{flex:1 1 100%;border:0;padding:0}.term-row .d{color:var(--text-2)}.term-row .acts{position:absolute;right:6px}.term-row{position:relative;padding-right:48px}}

/* ---------- editor ---------- */
.field{display:block;margin-bottom:14px}
.field input,.field textarea,.field select{
  width:100%;border:0;border-bottom:2px solid var(--border);background:transparent;outline:0;
  padding:8px 2px;font-size:17px;border-radius:0;resize:none;
}
.field input:focus,.field textarea:focus{border-bottom-color:var(--yellow)}
.field>span{display:block;font-size:12px;font-weight:700;color:var(--text-3);text-transform:uppercase;letter-spacing:.04em;margin-top:4px}
.edit-card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:12px;overflow:hidden}
.edit-card .hd{display:flex;align-items:center;justify-content:space-between;padding:6px 6px 0 16px;color:var(--text-3);font-weight:700;font-size:14px}
.edit-card .bd{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:0 16px 10px}
@media (max-width:560px){.edit-card .bd{grid-template-columns:1fr;gap:0}}
.edit-card textarea{min-height:42px;overflow:hidden}
.add-card{width:100%;padding:22px;border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);font-weight:800;color:var(--text-2);letter-spacing:.04em;border-bottom:4px solid var(--primary)}
.add-card:active{transform:scale(.99)}
.lang-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
select.sel{width:100%;height:44px;border-radius:var(--radius-sm);border:2px solid var(--border);background:var(--surface);padding:0 10px;font-size:15px;-webkit-appearance:none;appearance:none}

/* ---------- sheet / modal ---------- */
.backdrop{position:fixed;inset:0;background:rgba(10,9,45,.5);z-index:100;opacity:0;transition:opacity .2s}
.backdrop.show{opacity:1}
.sheet{
  position:fixed;left:0;right:0;bottom:calc(-1 * var(--vgap,0px));z-index:101;max-height:92dvh;overflow:auto;
  background:var(--surface);border-radius:22px 22px 0 0;
  padding:10px calc(var(--safe-r) + 20px) calc(var(--safe-b) + 20px) calc(var(--safe-l) + 20px);
  transform:translateY(100%);transition:transform .28s cubic-bezier(.2,.8,.2,1);
  max-width:640px;margin:0 auto;-webkit-overflow-scrolling:touch;
}
.sheet.show{transform:none}
.sheet .grab{width:40px;height:5px;border-radius:3px;background:var(--border);margin:0 auto 12px}
.sheet h3{margin:0 0 14px;font-size:20px}
.sheet .opt{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 0;border-bottom:1px solid var(--surface-2);font-weight:600}
.sheet .opt:last-of-type{border-bottom:0}
.sheet .opt small{display:block;color:var(--text-2);font-weight:500;font-size:13px}
.menu-item{display:flex;align-items:center;gap:14px;width:100%;padding:14px 4px;font-weight:600;font-size:16px;text-align:left;border-bottom:1px solid var(--surface-2)}
.menu-item:last-child{border-bottom:0}
.menu-item svg{width:22px;height:22px;color:var(--text-2)}
.menu-item.danger,.menu-item.danger svg{color:var(--danger)}

.switch{position:relative;width:51px;height:31px;flex:none}
.switch input{opacity:0;width:0;height:0;position:absolute}
.switch i{position:absolute;inset:0;border-radius:999px;background:var(--surface-3);transition:background .2s}
.switch i::after{content:"";position:absolute;top:2px;left:2px;width:27px;height:27px;border-radius:50%;background:#fff;box-shadow:0 2px 4px rgba(0,0,0,.2);transition:transform .2s}
.switch input:checked+i{background:var(--primary)}
.switch input:checked+i::after{transform:translateX(20px)}

.seg{display:flex;background:var(--surface-2);border-radius:999px;padding:3px;gap:2px}
.seg button{flex:1;padding:8px 12px;border-radius:999px;font-weight:700;font-size:14px;color:var(--text-2);white-space:nowrap}
.seg button.on{background:var(--surface);color:var(--text);box-shadow:0 1px 4px rgba(0,0,0,.12)}

textarea.import{width:100%;min-height:180px;border-radius:var(--radius-sm);border:2px solid var(--border);background:var(--bg);padding:12px;font-size:15px;outline:0;resize:vertical;font-family:ui-monospace,Menlo,monospace}
textarea.import:focus{border-color:var(--primary)}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 14px}
.chip{padding:7px 14px;border-radius:999px;background:var(--surface-2);font-weight:700;font-size:14px;color:var(--text-2)}
.chip.on{background:var(--primary);color:#fff}
.hint{font-size:13px;color:var(--text-2)}
.import-prev{max-height:160px;overflow:auto;border-radius:var(--radius-sm);background:var(--bg);padding:8px 12px;font-size:14px;margin:10px 0 16px}
.import-prev div{display:flex;gap:10px;padding:5px 0;border-bottom:1px solid var(--surface-2)}
.import-prev b{flex:1;overflow-wrap:anywhere}.import-prev span{flex:1;color:var(--text-2);overflow-wrap:anywhere}

.toast{position:fixed;left:50%;bottom:calc(var(--safe-b) + 100px - var(--vgap,0px));transform:translate(-50%,20px);opacity:0;z-index:200;
  background:#282e3e;color:#fff;padding:12px 18px;border-radius:12px;font-weight:600;font-size:15px;transition:all .25s;pointer-events:none;max-width:90vw;text-align:center}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ---------- study shell ---------- */
.study{display:flex;flex-direction:column;min-height:100dvh;overflow-x:hidden;overflow-x:clip}
.study .page{display:flex;flex-direction:column}
.progress{height:6px;background:var(--surface-3);border-radius:3px;overflow:hidden;display:flex}
.progress i{height:100%;transition:width .3s}
.progress .g{background:var(--success)}.progress .o{background:var(--warn)}.progress .b{background:var(--primary)}

/* flashcards */
.fc-counts{display:flex;justify-content:space-between;align-items:center;margin:6px 0 14px}
.count-badge{min-width:44px;height:30px;border-radius:999px;display:grid;place-items:center;font-weight:800;font-size:15px;padding:0 12px;border:2px solid}
.count-badge.o{color:var(--warn);border-color:var(--warn);background:var(--warn-soft)}
.count-badge.g{color:var(--success);border-color:var(--success);background:var(--success-soft)}
.fc-stage{position:relative;flex:1;min-height:320px;perspective:1600px;margin-bottom:16px}
.fc{position:absolute;inset:0;cursor:pointer;touch-action:none;will-change:transform}
.fc-inner{position:absolute;inset:0;transform-style:preserve-3d;transition:transform .45s cubic-bezier(.3,.7,.3,1)}
.fc.flipped .fc-inner{transform:rotateY(180deg)}
.fc-face{
  position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;
  background:var(--surface);border-radius:20px;box-shadow:var(--shadow-lg);
  display:flex;align-items:center;justify-content:center;text-align:center;padding:48px 24px;
  font-size:26px;font-weight:600;overflow:auto;white-space:pre-wrap;overflow-wrap:anywhere;
  border:3px solid transparent;transition:border-color .1s;
}
.fc-face.back{transform:rotateY(180deg);font-weight:500}
.fc-face .lbl{position:absolute;top:16px;left:20px;font-size:13px;font-weight:700;color:var(--text-3);text-transform:uppercase;letter-spacing:.05em}
.fc-face .tools{position:absolute;top:8px;right:8px;display:flex}
.fc-face .tap{position:absolute;bottom:14px;left:0;right:0;font-size:13px;color:var(--text-3);font-weight:600}
.fc-face.long{font-size:20px}.fc-face.xlong{font-size:17px;align-items:flex-start}
.fc .stamp{position:absolute;top:24px;z-index:3;font-size:18px;font-weight:800;padding:6px 14px;border-radius:10px;border:3px solid;opacity:0;pointer-events:none;background:var(--surface)}
.fc .stamp.know{right:24px;color:var(--success);border-color:var(--success);transform:rotate(8deg)}
.fc .stamp.learn{left:24px;color:var(--warn);border-color:var(--warn);transform:rotate(-8deg)}
.fc-controls{display:flex;justify-content:center;align-items:center;gap:18px;padding-bottom:4px}
.round-btn{width:64px;height:64px;border-radius:50%;display:grid;place-items:center;background:var(--surface);box-shadow:var(--shadow);transition:transform .08s}
.round-btn:active{transform:scale(.92)}
.round-btn svg{width:28px;height:28px}
.round-btn.x{color:var(--warn);box-shadow:inset 0 0 0 2px var(--warn),var(--shadow)}
.round-btn.ok{color:var(--success);box-shadow:inset 0 0 0 2px var(--success),var(--shadow)}
.round-btn.sm{width:46px;height:46px;color:var(--text-2)}
.round-btn.sm svg{width:22px;height:22px}
.round-btn[disabled]{opacity:.35;pointer-events:none}

/* result */
.result{text-align:center;padding-top:12px}
.result h2{font-size:26px;margin:8px 0 6px}
.result p{color:var(--text-2);margin:0 0 18px}
.ring{width:150px;height:150px;margin:12px auto 20px;position:relative}
.ring svg{width:150px;height:150px;transform:rotate(-90deg)}
.ring b{position:absolute;inset:0;display:grid;place-items:center;font-size:30px;font-weight:800}
.legend{display:flex;flex-direction:column;gap:8px;max-width:340px;margin:0 auto 24px}
.legend div{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border-radius:12px;font-weight:700}
.legend .g{background:var(--success-soft);color:var(--success)}
.legend .o{background:var(--warn-soft);color:var(--warn)}
.legend .r{background:var(--danger-soft);color:var(--danger)}
.result .stack{max-width:380px;margin:0 auto}

/* learn / test questions */
.q-card{background:var(--surface);border-radius:20px;box-shadow:var(--shadow-lg);padding:22px 20px 20px;margin-bottom:16px}
.q-top{display:flex;justify-content:space-between;align-items:center;color:var(--text-3);font-weight:700;font-size:13px;margin-bottom:10px}
.q-prompt{font-size:22px;font-weight:600;min-height:72px;white-space:pre-wrap;overflow-wrap:anywhere;margin-bottom:18px}
.q-sub{font-size:14px;font-weight:700;color:var(--text-2);margin-bottom:10px}
.options{display:grid;gap:10px}
@media (min-width:620px){.options.grid2{grid-template-columns:1fr 1fr}}
.option{
  text-align:left;padding:14px 16px;border-radius:12px;border:2px solid var(--border);background:var(--surface);
  font-size:16px;font-weight:500;display:flex;gap:12px;align-items:center;min-height:56px;overflow-wrap:anywhere;white-space:pre-wrap;
  transition:border-color .12s,background .12s;
}
.option .n{width:26px;height:26px;border-radius:50%;background:var(--surface-2);display:grid;place-items:center;font-size:13px;font-weight:800;color:var(--text-2);flex:none}
.option:active{border-color:var(--text-3)}
.option.sel{border-color:var(--primary);background:var(--primary-soft)}
.option.right{border-color:var(--success);background:var(--success-soft)}
.option.wrong{border-color:var(--danger);background:var(--danger-soft)}
.option.right .n{background:var(--success);color:#fff}
.option.wrong .n{background:var(--danger);color:#fff}
.option.dim{opacity:.5}
.answer-input{
  width:100%;border:2px solid var(--border);border-radius:12px;background:var(--bg);padding:14px 16px;font-size:17px;outline:0;
}
.answer-input:focus{border-color:var(--primary)}
.answer-input.right{border-color:var(--success);background:var(--success-soft)}
.answer-input.wrong{border-color:var(--danger);background:var(--danger-soft)}
.feedback{border-radius:12px;padding:12px 14px;margin-top:14px;font-weight:600}
.feedback.good{background:var(--success-soft);color:var(--success)}
.feedback.bad{background:var(--danger-soft);color:var(--danger)}
.feedback .ans{color:var(--text);font-weight:600;margin-top:6px;white-space:pre-wrap;overflow-wrap:anywhere}
.feedback .ans small{display:block;color:var(--text-2);font-weight:700;font-size:12px;text-transform:uppercase;letter-spacing:.04em}
.link-btn{color:var(--primary-text);font-weight:700;font-size:14px;padding:6px 0}
.sticky-bottom{position:sticky;bottom:0;padding:12px 0 calc(var(--safe-b) + 4px);background:linear-gradient(transparent,var(--bg) 30%)}
.tf{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.tf .option{justify-content:center;font-weight:700}
.test-pair{display:grid;grid-template-columns:1fr auto 1fr;gap:12px;align-items:center;margin-bottom:18px}
.test-pair div{font-size:18px;font-weight:600;white-space:pre-wrap;overflow-wrap:anywhere}
.test-pair hr{width:1px;height:100%;border:0;background:var(--border);margin:0}
.badge-res{font-size:12px;font-weight:800;padding:3px 10px;border-radius:999px}
.badge-res.ok{background:var(--success-soft);color:var(--success)}
.badge-res.bad{background:var(--danger-soft);color:var(--danger)}

/* match */
.match-top{display:flex;justify-content:center;align-items:center;margin:4px 0 14px}
.timer{font-size:28px;font-weight:800;font-variant-numeric:tabular-nums}
.match-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;flex:1;grid-auto-rows:1fr;min-height:420px}
@media (min-width:640px){.match-grid{grid-template-columns:repeat(4,1fr)}}
.tile{
  background:var(--surface);border-radius:14px;box-shadow:var(--shadow);padding:8px;
  display:flex;align-items:center;justify-content:center;text-align:center;font-weight:600;
  overflow:hidden;overflow-wrap:anywhere;border:3px solid transparent;transition:opacity .3s,transform .3s,border-color .1s,background .1s;
  font-size:15px;line-height:1.25;
}
.tile.sel{border-color:var(--primary);background:var(--primary-soft)}
.tile.bad{border-color:var(--danger);background:var(--danger-soft);animation:shake .35s}
.tile.good{border-color:var(--success);background:var(--success-soft)}
.tile.gone{opacity:0;transform:scale(.8);pointer-events:none}
.tile.s{font-size:13px}.tile.xs{font-size:11px}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}
.penalty{position:fixed;left:50%;top:calc(var(--safe-t) + 70px);transform:translateX(-50%);color:var(--danger);font-weight:800;font-size:20px;animation:rise .8s forwards;pointer-events:none;z-index:50}
@keyframes rise{from{opacity:1;transform:translate(-50%,0)}to{opacity:0;transform:translate(-50%,-30px)}}

.intro{text-align:center;padding:30px 10px}
.intro .big-ic{width:96px;height:96px;border-radius:28px;display:grid;place-items:center;margin:0 auto 20px}
.intro .big-ic svg{width:52px;height:52px}
.intro h2{font-size:26px;margin:0 0 8px}
.intro p{color:var(--text-2);margin:0 0 26px}

.settings-group{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:4px 18px;margin-bottom:16px}
.settings-group .opt{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 0;border-bottom:1px solid var(--surface-2);font-weight:600;width:100%;text-align:left}
.settings-group .opt:last-child{border-bottom:0}
.settings-group .opt small{display:block;color:var(--text-2);font-weight:500;font-size:13px}
.settings-group .opt svg{width:20px;height:20px;color:var(--text-3)}
.install-tip{display:flex;gap:14px;align-items:flex-start;padding:16px;border-radius:var(--radius);background:var(--primary-soft);color:var(--text);margin-bottom:16px}
.install-tip svg{width:26px;height:26px;color:var(--primary-text);flex:none}
.install-tip b{display:block;margin-bottom:2px}
.install-tip p{margin:0;font-size:14px;color:var(--text-2)}
.inline-ic{display:inline-block;width:16px;height:16px;vertical-align:-3px}
.fade-in{animation:fadein .25s ease}
@keyframes fadein{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.confetti{position:fixed;inset:0;pointer-events:none;z-index:150}

.settings-group .opt,.sheet .opt{flex-wrap:wrap}
.opt .seg{margin-left:auto;max-width:100%}
@media (max-width:420px){.seg button{padding:8px 10px}}
.term-row{align-items:center}
.term-row .acts{flex-direction:row;margin:-8px 0}
@media (max-width:420px){.term-row{align-items:flex-start}.term-row .acts{flex-direction:column;top:8px;margin:0}}

.set-item{position:relative;cursor:pointer}
.set-item h3{padding-right:36px}
.set-more{position:absolute;top:8px;right:6px}

/* synchronizacja */
.spinner{width:56px;height:56px;border-radius:50%;border:5px solid var(--primary-soft);border-top-color:var(--primary);animation:spin .8s linear infinite;margin:10px auto 22px}
.spinner.sm{width:18px;height:18px;border-width:3px;margin:0}
@keyframes spin{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.spinner{animation-duration:2.4s}}
.sync-code{text-align:center;padding-top:8px}
.qr-box{width:min(260px,70vw);margin:0 auto 18px;background:#fff;border-radius:20px;padding:10px;box-shadow:var(--shadow-lg)}
.qr-box svg{width:100%;height:auto}
.code-digits{font-size:40px;font-weight:800;letter-spacing:.12em;font-variant-numeric:tabular-nums;margin:0 0 18px;color:var(--text)}
.code-form{display:flex;flex-direction:column;gap:12px;margin-top:8px}
.code-input{width:100%;text-align:center;font-size:34px;font-weight:800;letter-spacing:.14em;font-variant-numeric:tabular-nums;border:2px solid var(--border);border-radius:16px;background:var(--surface);padding:14px 10px;outline:0}
.code-input:focus{border-color:var(--primary)}
.or{display:flex;align-items:center;gap:12px;color:var(--text-3);font-weight:700;font-size:13px;margin:22px 0}
.or::before,.or::after{content:"";flex:1;height:1px;background:var(--border)}
.cam{position:relative;border-radius:20px;overflow:hidden;background:#000;aspect-ratio:1;max-width:100%;margin-bottom:12px}
.cam video{width:100%;height:100%;object-fit:cover;display:block}
.cam-frame{position:absolute;inset:18%;border:4px solid rgba(255,255,255,.9);border-radius:18px;box-shadow:0 0 0 999px rgba(0,0,0,.35)}
.btn[hidden]{display:none}

/* ekran powitalny – zawsze w barwach marki, niezależnie od motywu */
.splash{position:fixed;inset:0;z-index:300;overflow:hidden;background:linear-gradient(160deg,#4255ff 0%,#2a2fb8 55%,#0a092d 100%);color:#fff;display:flex;flex-direction:column;
  transition:transform .55s cubic-bezier(.6,0,.2,1),opacity .55s;touch-action:none}
.splash.leaving{transform:translateY(-100%);opacity:.6}
.splash-bg{position:absolute;inset:0;width:100%;height:100%;z-index:1;pointer-events:none}
.splash-blobs{position:absolute;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.splash-blobs i{position:absolute;width:90vmax;height:90vmax;border-radius:50%;will-change:transform;animation:blob 22s ease-in-out infinite alternate}
.splash-blobs i:nth-child(1){left:-42vmax;top:-36vmax;background:radial-gradient(closest-side,rgba(123,139,255,.55),rgba(123,139,255,0))}
.splash-blobs i:nth-child(2){right:-48vmax;top:-14vmax;background:radial-gradient(closest-side,rgba(255,205,31,.18),rgba(255,205,31,0));animation-duration:28s;animation-delay:-6s}
.splash-blobs i:nth-child(3){left:-24vmax;bottom:-52vmax;background:radial-gradient(closest-side,rgba(224,54,140,.22),rgba(224,54,140,0));animation-duration:25s;animation-delay:-12s}
@keyframes blob{from{transform:translate3d(0,0,0)}to{transform:translate3d(12vw,8vh,0)}}
.splash-vignette{position:absolute;inset:0;z-index:2;pointer-events:none;
  background:radial-gradient(max(62vw,220px) max(36vh,200px) at 50% 47%,rgba(38,42,176,.88) 0%,rgba(38,42,176,.62) 55%,rgba(38,42,176,0) 100%)}
.splash-content{position:relative;z-index:3;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;
  padding:calc(var(--safe-t) + 24px) max(24px,calc(var(--safe-r) + 16px)) calc(var(--safe-b) + 56px) max(24px,calc(var(--safe-l) + 16px));transition:transform .2s}
.splash-content>*{animation:splash-in .7s cubic-bezier(.2,.8,.2,1) both}
.splash-content>:nth-child(2){animation-delay:.08s}.splash-content>:nth-child(3){animation-delay:.16s}
.splash-content>:nth-child(4){animation-delay:.22s}.splash-content>:nth-child(5){animation-delay:.28s}.splash-content>:nth-child(6){animation-delay:.34s}
@keyframes splash-in{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.splash-logo{width:96px;height:96px;border-radius:28px;background:rgba(255,255,255,.18);
  box-shadow:0 10px 30px rgba(10,9,45,.35),inset 0 0 0 1px rgba(255,255,255,.25);display:grid;place-items:center;margin-bottom:18px}
.splash-logo svg{width:76px;height:76px}
.splash-title{font-size:clamp(32px,9.5vw,58px);font-weight:800;letter-spacing:-.03em;margin:0;line-height:1.02;text-wrap:balance;max-width:13ch;text-shadow:0 4px 24px rgba(10,9,45,.35)}
.splash-greet{font-size:22px;font-weight:700;margin:14px 0 4px;color:#ffcd1f;text-shadow:0 2px 12px rgba(10,9,45,.5)}
.splash-sub{font-size:16px;margin:0 0 18px;color:rgba(255,255,255,.9);text-shadow:0 1px 10px rgba(10,9,45,.6);max-width:30ch;text-wrap:balance}
.splash-stats{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-bottom:28px}
.splash-stats span{background:rgba(10,9,45,.32);border-radius:999px;padding:7px 14px;font-size:14px;color:rgba(255,255,255,.9);box-shadow:inset 0 0 0 1px rgba(255,255,255,.18)}
.splash-stats b{color:#fff;font-variant-numeric:tabular-nums}
.splash-actions{display:flex;flex-direction:column;gap:12px;width:100%;max-width:340px}
.splash-btn{min-height:56px;border-radius:999px;font-weight:800;font-size:17px;padding:8px 22px;display:flex;flex-direction:column;align-items:center;justify-content:center;transition:transform .1s;line-height:1.2}
.splash-btn:active{transform:scale(.97)}
.splash-btn:focus-visible{outline:3px solid #ffcd1f;outline-offset:3px}
.splash-btn.primary{background:#fff;color:#2a2fb8;box-shadow:0 10px 28px rgba(10,9,45,.35)}
.splash-btn.primary small{font-size:12px;font-weight:700;color:#586380;text-transform:uppercase;letter-spacing:.06em}
.splash-btn.ghost{background:rgba(42,47,184,.7);color:#fff;box-shadow:inset 0 0 0 2px rgba(255,255,255,.4)}
.splash-hint{position:absolute;left:0;right:0;bottom:calc(var(--safe-b) + 18px);text-align:center;font-size:13px;font-weight:600;color:rgba(255,255,255,.6);z-index:3;animation:hint 2.4s ease-in-out infinite}
@keyframes hint{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}
@media (hover:hover) and (pointer:fine){.splash-hint{display:none}}
@media (prefers-reduced-motion:reduce){.splash-content>*,.splash-hint,.splash-blobs i{animation:none}.splash{transition:opacity .3s}.splash.leaving{transform:none;opacity:0}}
html.splash-open,html.splash-open body{overflow:hidden}

.countdown-wrap{display:flex;flex-direction:column;align-items:center}
.countdown-wrap .splash-greet{font-size:15px;text-transform:uppercase;letter-spacing:.08em;margin:18px 0 10px}
.countdown{display:grid;grid-template-columns:repeat(4,minmax(62px,76px));gap:8px}
.countdown div{background:rgba(10,9,45,.5);border-radius:16px;padding:10px 4px 8px;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.18);display:flex;flex-direction:column;align-items:center}
.countdown b{font-size:30px;font-weight:800;font-variant-numeric:tabular-nums;line-height:1.05;color:#fff}
.countdown span{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:rgba(255,255,255,.7);margin-top:2px}
.countdown-date{font-size:13px;color:rgba(255,255,255,.7);margin:8px 0 14px;font-weight:600}
@media (max-height:720px){.splash-logo{width:72px;height:72px;border-radius:22px;margin-bottom:12px}.splash-logo svg{width:56px;height:56px}.countdown b{font-size:24px}.splash-stats{margin-bottom:18px}}

/* foldery */
.folder-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
@media (min-width:620px){.folder-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.folder-tile{position:relative;background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:14px 14px 12px;display:flex;flex-direction:column;gap:3px;cursor:pointer;
  border-bottom:4px solid transparent;min-width:0;text-align:left;transition:transform .08s,border-color .15s}
.folder-tile:active{transform:scale(.97);border-bottom-color:var(--fc)}
.folder-tile:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.folder-tile b{font-size:16px;padding-right:26px;overflow-wrap:anywhere;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.folder-tile small{color:var(--text-2);font-weight:600;font-size:12px}
.folder-tile .mini-progress{margin-top:auto;padding-top:0}
.folder-tile .set-more{top:6px;right:4px}
.folder-tile.new{border:2px dashed var(--border);background:transparent;box-shadow:none;align-items:center;justify-content:center;color:var(--text-2);font-weight:700;min-height:132px;gap:8px}
.folder-tile.new svg{width:28px;height:28px}
.f-ic{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-size:24px;background:color-mix(in srgb,var(--fc) 20%,var(--surface));margin-bottom:6px;flex:none}
.f-ic.big{width:64px;height:64px;border-radius:18px;font-size:34px;margin:0}
.f-ic.sm{width:34px;height:34px;border-radius:10px;font-size:18px;margin:0}
.folder-head{display:flex;gap:14px;align-items:center;margin-top:4px}
.folder-head h2{font-size:26px;margin:0 0 6px;overflow-wrap:anywhere;line-height:1.15}
.folder-chip{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;background:color-mix(in srgb,var(--fc) 18%,var(--surface));color:var(--text);font-weight:700;font-size:13px;margin-bottom:8px}
.set-meta .pill[style*="--fc"]{background:color-mix(in srgb,var(--fc) 16%,var(--surface));color:var(--text)}
.section-title .link-btn{padding:0}
.emoji-grid{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:6px;margin:8px 0 14px}
.emoji-grid button{aspect-ratio:1;border-radius:12px;font-size:22px;background:var(--surface-2);display:grid;place-items:center}
.emoji-grid button.on{box-shadow:inset 0 0 0 2px var(--primary);background:var(--primary-soft)}
.color-row{display:flex;gap:9px;flex-wrap:wrap;margin:8px 0 20px}
.color-row button{width:34px;height:34px;border-radius:50%;background:var(--c)}
.color-row button.on{box-shadow:0 0 0 3px var(--surface),0 0 0 5px var(--c)}
.check-list{max-height:52dvh;overflow:auto}
.check-row{display:flex;align-items:center;gap:12px;padding:12px 2px;border-bottom:1px solid var(--surface-2);cursor:pointer}
.check-row input{width:22px;height:22px;accent-color:var(--primary);flex:none}
.check-row span{display:flex;flex-direction:column;min-width:0}
.check-row b{overflow-wrap:anywhere}.check-row small{color:var(--text-2);font-size:13px}
.folder-field{display:flex;flex-direction:column;gap:6px;margin:0 0 14px}
.folder-field>span{font-size:12px;font-weight:700;color:var(--text-3);text-transform:uppercase;letter-spacing:.04em}
.menu-item small.hint{margin-top:2px}

/* przedmioty i działy */
.subject-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
@media (min-width:620px){.subject-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.subject-tile{position:relative;overflow:hidden;border-radius:20px;padding:16px 14px 12px;display:flex;flex-direction:column;gap:3px;cursor:pointer;min-width:0;text-align:left;
  background:linear-gradient(150deg,color-mix(in srgb,var(--fc) 22%,var(--surface)) 0%,var(--surface) 62%);box-shadow:var(--shadow);
  border-bottom:4px solid color-mix(in srgb,var(--fc) 55%,transparent);
  animation:tile-in .5s cubic-bezier(.2,.8,.2,1) both;animation-delay:calc(var(--i,0) * 70ms);transition:transform .12s}
.subject-tile::after{content:"";position:absolute;width:110px;height:110px;border-radius:50%;right:-38px;top:-42px;background:color-mix(in srgb,var(--fc) 16%,transparent);pointer-events:none}
.subject-tile:active,.subject-tile.tapped{transform:scale(.96)}
.subject-tile:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.subject-tile b{font-size:17px;padding-right:22px;overflow-wrap:anywhere;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;position:relative;z-index:1}
.subject-tile small{color:var(--text-2);font-weight:600;font-size:12px;position:relative;z-index:1}
.subject-tile .mini-progress{margin-top:10px;position:relative;z-index:1}
.subject-tile .set-more{top:6px;right:4px;z-index:2}
.subject-tile.new{background:transparent;box-shadow:none;border:2px dashed var(--border);align-items:center;justify-content:center;color:var(--text-2);font-weight:700;min-height:150px;gap:8px}
.subject-tile.new::after{display:none}
.subject-tile.new svg{width:30px;height:30px}
.s-emoji{display:inline-block;font-size:38px;line-height:1;margin:2px 0 10px;position:relative;z-index:1;transform-origin:50% 80%;
  filter:drop-shadow(0 4px 6px rgba(10,9,45,.18));animation:s-float 3.4s ease-in-out infinite;animation-delay:calc(var(--i,0) * -.6s)}
.subject-tile:hover .s-emoji,.subject-tile.tapped .s-emoji{animation:s-wiggle .5s ease-in-out}
.s-emoji.big{font-size:58px;margin:0;animation:s-pop .6s cubic-bezier(.2,1.4,.4,1) both,s-float 3.4s ease-in-out .6s infinite}
@keyframes tile-in{from{opacity:0;transform:translateY(14px) scale(.96)}to{opacity:1;transform:none}}
@keyframes s-float{0%,100%{transform:translateY(0) rotate(-3deg)}50%{transform:translateY(-6px) rotate(3deg)}}
@keyframes s-wiggle{0%,100%{transform:rotate(0) scale(1)}25%{transform:rotate(-14deg) scale(1.15)}50%{transform:rotate(10deg) scale(1.15)}75%{transform:rotate(-6deg) scale(1.08)}}
@keyframes s-pop{from{opacity:0;transform:scale(.3) rotate(-20deg)}to{opacity:1;transform:none}}
.subject-hero{display:flex;gap:16px;align-items:center;padding:18px;border-radius:22px;margin-top:4px;
  background:linear-gradient(150deg,color-mix(in srgb,var(--fc) 24%,var(--surface)) 0%,var(--surface) 70%);box-shadow:var(--shadow)}
.subject-hero h2,.section-hero h2{font-size:26px;margin:0 0 6px;overflow-wrap:anywhere;line-height:1.15}
.section-hero{margin-top:2px}
.section-row{display:flex;align-items:center;gap:14px;padding:14px 8px 14px 14px;margin-bottom:10px;border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);cursor:pointer;
  border-left:5px solid var(--fc);animation:row-in .45s cubic-bezier(.2,.8,.2,1) both;animation-delay:calc(var(--i,0) * 60ms);transition:transform .1s}
.section-row:active{transform:scale(.985)}
.section-row:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.sec-num{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;font-weight:800;font-size:16px;flex:none;
  background:color-mix(in srgb,var(--fc) 18%,var(--surface));color:var(--text)}
.sec-body{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}
.sec-body b{font-size:16px;overflow-wrap:anywhere}
.sec-body small{color:var(--text-2);font-weight:600;font-size:12px}
.sec-body .mini-progress{margin-top:8px}
@keyframes row-in{from{opacity:0;transform:translateX(-12px)}to{opacity:1;transform:none}}
.section-empty{display:flex;align-items:center;gap:14px;width:100%;padding:18px;border-radius:var(--radius);border:2px dashed var(--border);color:var(--text-2);text-align:left}
.section-empty svg{width:28px;height:28px;flex:none}
.section-empty span{display:flex;flex-direction:column}.section-empty b{color:var(--text)}.section-empty small{font-size:13px}
.crumbs{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin-bottom:8px}
.crumbs .folder-chip{margin:0}
.folder-chip.plain{background:var(--surface-2)}
.crumb-sep{color:var(--text-3);font-weight:800}
.menu-item.indent{padding-left:18px;gap:12px}
.sec-dot{width:10px;height:10px;border-radius:50%;background:var(--fc);margin-left:12px;flex:none}
@media (prefers-reduced-motion:reduce){.subject-tile,.section-row,.s-emoji,.s-emoji.big{animation:none!important}}

/* animowane podglądy: Chemia (kolba z bąbelkami) i Biologia (podwójna helisa DNA) */
.s-art{width:56px;height:56px;margin:0 0 8px;position:relative;z-index:1;overflow:visible;filter:drop-shadow(0 4px 6px rgba(10,9,45,.16))}
.s-art.big{width:76px;height:76px;margin:0;flex:none;animation:s-pop .6s cubic-bezier(.2,1.4,.4,1) both}
.s-art *{transform-box:fill-box}
.subject-tile:hover .s-art,.subject-tile.tapped .s-art{animation:s-wiggle .5s ease-in-out}
.art-chem .liquid{animation:wave 2.2s linear infinite}
.art-chem .bub{fill:#fff;opacity:0;animation:bubble var(--t) ease-in infinite;animation-delay:var(--d)}
.art-chem .spark{fill:var(--fc);opacity:0;animation:spark 1.8s ease-out infinite;animation-delay:var(--d)}
@keyframes wave{from{transform:translateX(0)}to{transform:translateX(32px)}}
@keyframes bubble{0%{transform:translateY(0) scale(.6);opacity:0}15%{opacity:.9}80%{opacity:.8}100%{transform:translateY(-24px) scale(1.1);opacity:0}}
@keyframes spark{0%{transform:translateY(4px) scale(.4);opacity:0}30%{opacity:.9}100%{transform:translateY(-8px) scale(1);opacity:0}}
.art-dna .bar{stroke:var(--text);stroke-width:2;stroke-linecap:round;opacity:.3;transform-origin:center;animation:dna-bar 2.4s ease-in-out infinite;animation-delay:var(--d)}
.art-dna .dot{transform-origin:center;animation:2.4s ease-in-out infinite;animation-delay:var(--d)}
.art-dna .dot.a{fill:var(--fc);animation-name:dna-a}
.art-dna .dot.b{fill:#e0368c;animation-name:dna-b}
@keyframes dna-a{0%{transform:translateX(0) scale(1)}25%{transform:translateX(12px) scale(1.3)}50%{transform:translateX(24px) scale(1)}75%{transform:translateX(12px) scale(.65)}100%{transform:translateX(0) scale(1)}}
@keyframes dna-b{0%{transform:translateX(0) scale(1)}25%{transform:translateX(-12px) scale(.65)}50%{transform:translateX(-24px) scale(1)}75%{transform:translateX(-12px) scale(1.3)}100%{transform:translateX(0) scale(1)}}
@keyframes dna-bar{0%,50%,100%{transform:scaleX(1)}25%,75%{transform:scaleX(.08)}}
@media (prefers-reduced-motion:reduce){.s-art,.s-art *{animation:none!important}.art-chem .bub{opacity:.7}}

/* obrazki na fiszkach */
.with-media{display:flex;flex-direction:column;align-items:center;gap:10px;width:100%;min-width:0}
.with-media .side-text{white-space:pre-wrap;overflow-wrap:anywhere}
.viz{display:flex;justify-content:center;align-items:center;color:var(--text);width:100%;min-width:0}
.viz svg{width:100%;height:auto;max-height:min(34vh,240px)}
.viz img{max-width:100%;max-height:min(40vh,300px);border-radius:12px;object-fit:contain;background:#fff}
.viz.sm svg{max-height:110px}.viz.sm img{max-height:130px}
.viz.xs svg{max-height:64px}.viz.xs img{max-height:72px;border-radius:8px}
.viz.missing::after{content:"(brak zdjęcia na tym urządzeniu)";font-size:12px;color:var(--text-3)}
.viz .tubes{max-width:240px}.viz.sm .tubes{max-width:140px}.viz.xs .tubes{max-width:90px}
.fc-face.media{flex-direction:column;font-size:20px;padding-top:44px}
.fc-face.media .side-text{font-size:19px}
.q-prompt .with-media{align-items:flex-start}
.option .opt-body{flex:1;min-width:0}
.option .with-media{align-items:flex-start}
.term-row .with-media{align-items:flex-start;gap:6px}
.tile .with-media{gap:4px}.tile .with-media .side-text{font-size:12px}
.ed-media-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;padding:0 16px 14px}
.ed-media{display:flex;align-items:center;gap:8px;background:var(--surface-2);border-radius:12px;padding:6px 6px 6px 10px}
.ed-media .viz{width:auto}.ed-media .viz svg{width:72px}
.ed-media small{color:var(--text-2);font-weight:600;font-size:12px}
.ed-media .link-btn{font-size:12px;padding:0}
/* wycinki z arkuszy CKE */
.cke-fig{margin:0;display:flex;flex-direction:column;align-items:center;gap:4px;width:100%;min-width:0}
.viz .cke-fig img{width:auto;max-width:100%;max-height:min(42vh,340px);background:#fff;border-radius:10px;padding:4px;box-sizing:border-box}
.viz.sm .cke-fig img{max-height:140px}.viz.xs .cke-fig img{max-height:72px;padding:2px}
.cke-fig figcaption{font-size:11px;line-height:1.2;color:var(--text-3);font-weight:600;letter-spacing:.01em}
.viz.xs .cke-fig figcaption{display:none}
.ed-media .viz .cke-fig img{width:72px}
.q-prompt.long{font-size:19px}.q-prompt.xlong{font-size:17px}
/* pierścienie postępu */
.ring{position:relative;display:inline-grid;place-items:center;flex:none;width:52px;height:52px}
.ring svg{position:absolute;inset:0;width:100%;height:100%;transform:rotate(-90deg)}
.ring circle{fill:none;stroke-width:4;stroke-linecap:round}
.ring .r-bg{stroke:var(--surface-3)}.ring .r-g{stroke:var(--success)}.ring .r-o{stroke:var(--warn);stroke-linecap:butt}
.ring b{position:relative;font-size:14px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--text)}
.ring b small{font-size:.7em;font-weight:700;color:var(--text-2)}
.ring.xs{width:38px;height:38px}.ring.xs b{font-size:11px}.ring.xs b small{display:none}
.ring.sm{width:34px;height:34px}.ring.sm b{display:none}
.ring.lg{width:68px;height:68px;margin-left:auto}.ring.lg b{font-size:17px}
.tile-foot{display:flex;align-items:center;gap:8px;margin-top:10px;position:relative;z-index:1;font-size:12px;font-weight:600;color:var(--text-2)}
.tile-foot b{color:var(--text);font-size:14px}
.tile-foot + .mini-progress{display:none}
.section-hero{display:flex;align-items:center;gap:14px}
.section-row .ring{margin-left:4px}
/* kolor przedmiotu w trybach nauki */
html.has-subj .study{background:linear-gradient(180deg,color-mix(in srgb,var(--subj) 13%,var(--bg)) 0,var(--bg) 260px)}
html.has-subj .study .fc-face,html.has-subj .study .q-card{box-shadow:inset 0 5px 0 var(--subj),var(--shadow-lg)}
html.has-subj .study .progress .b{background:var(--subj)}
.ring b,.tile-foot span{white-space:nowrap}
/* „wyspa”: pigułka nałożona dokładnie na Dynamic Island – wygląda, jakby wyspa się rozszerzała
   (tylko iPhone z wyspą, aplikacja z ekranu początkowego; pasek statusu w trybie black-translucent) */
#island{position:fixed;top:11px;left:50%;z-index:400;transform:translateX(-50%) scaleX(.7);opacity:0;pointer-events:none;
  background:#000;color:#fff;border-radius:19px;height:37px;width:126px;padding:0 3px 0 8px;box-sizing:border-box;
  display:flex;align-items:center;justify-content:space-between;font:700 11px/1 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;white-space:nowrap;overflow:hidden;
  transition:transform .5s cubic-bezier(.2,.9,.25,1.15),opacity .25s,width .5s cubic-bezier(.2,.9,.25,1.1),height .5s cubic-bezier(.2,.9,.25,1.1),border-radius .5s}
/* poszerzenie na boki: w lewo o ~20 pt (miejsce na liczbę), w prawo o ~17 pt (miejsce na ikonę) –
   tak, żeby nie wejść na godzinę po lewej ani na zasięg po prawej */
#island.on{opacity:1;width:163px;transform:translateX(calc(-50% - 1.5px))}
#island .isl-l,#island .isl-r{display:flex;align-items:center;justify-content:center}
#island .isl-l{min-width:12px}#island .isl-r{font-size:13px;line-height:1.25;min-width:16px;padding:1px 0}
#island.isl-big{width:290px;height:104px;border-radius:30px 30px 34px 34px;transform:translateX(-50%);flex-direction:column;align-items:center;justify-content:flex-end;gap:5px;padding:0 22px 16px;font-size:14px;letter-spacing:0}
#island.isl-big b{font-size:17px}#island.isl-big small{font-size:12px;font-weight:600;color:#a8b1ff;max-width:250px;overflow:hidden;text-overflow:ellipsis}
#island.pulse{animation:isl-pulse .45s ease-out}
#island.shake{animation:isl-shake .4s ease-in-out}
@keyframes isl-pulse{0%,100%{transform:translateX(calc(-50% - 1.5px)) scale(1)}40%{transform:translateX(calc(-50% - 1.5px)) scale(1.06)}}
@keyframes isl-shake{0%,100%{transform:translateX(calc(-50% - 1.5px))}25%{transform:translateX(calc(-50% - 5px))}75%{transform:translateX(calc(-50% + 2px))}}
@media (prefers-reduced-motion:reduce){#island{transition:opacity .2s}#island.pulse,#island.shake{animation:none}}
/* ciemne tło pod paskiem statusu (białe ikony paska są wtedy czytelne także w jasnym motywie) */
body::before{content:"";position:fixed;top:0;left:0;right:0;height:var(--safe-t);background:#0a092d;z-index:350;pointer-events:none}
html.splash-open body::before{display:none}
#island .dim{filter:grayscale(1);opacity:.7}
/* iOS (aplikacja z ekranu początkowego, pasek statusu black-translucent): okno strony bywa krótsze od ekranu
   o wysokość paska statusu; --vgap (liczone w app.js) dociąga elementy przyklejone do dołu do krawędzi ekranu */
.splash{bottom:calc(-1 * var(--vgap,0px))}.splash-hint{bottom:calc(var(--safe-b) + 18px)}