:root{
  --bg:#F4F5F0;
  --surface:#FFFFFF;
  --surface-2:#EBEDE5;
  --surface-3:#EEF0E9;
  --ink:#1A211D;
  --ink-muted:#626D62;
  --ink-faint:#93998F;
  --border:#DCE0D5;
  --accent:#2E6F62;
  --accent-ink:#FFFFFF;
  --accent-soft:#DCEAE5;
  --accent-2:#AE6A22;
  --accent-2-soft:#F2E3CC;
  --success:#3F8F5F;
  --success-soft:#DFF0E4;
  --danger:#C24B41;
  --danger-soft:#F8E2DF;
  --warn:#B78620;
  --warn-soft:#F3E9D1;
  --shadow:0 1px 2px rgba(26,33,29,.06),0 6px 20px -8px rgba(26,33,29,.12);
  --radius-s:8px;
  --radius-m:14px;
  --radius-l:20px;
  --font-display:'Fraunces',Georgia,'Times New Roman',serif;
  --font-body:'Manrope',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --font-mono:'IBM Plex Mono',ui-monospace,'SFMono-Regular',Consolas,monospace;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#121613; --surface:#191F1B; --surface-2:#202722; --surface-3:#1B211D;
    --ink:#E9EDE6; --ink-muted:#9CA79A; --ink-faint:#647063; --border:#2A322C;
    --accent:#63B9A3; --accent-ink:#0B1512; --accent-soft:#1C332C;
    --accent-2:#E1AC6E; --accent-2-soft:#372B1B;
    --success:#72C08F; --success-soft:#1D3324; --danger:#E58B82; --danger-soft:#3A2320;
    --warn:#E7C077; --warn-soft:#362C1A;
    --shadow:0 1px 2px rgba(0,0,0,.25),0 10px 28px -10px rgba(0,0,0,.5);
  }
}
:root[data-theme="dark"]{
  --bg:#121613; --surface:#191F1B; --surface-2:#202722; --surface-3:#1B211D;
  --ink:#E9EDE6; --ink-muted:#9CA79A; --ink-faint:#647063; --border:#2A322C;
  --accent:#63B9A3; --accent-ink:#0B1512; --accent-soft:#1C332C;
  --accent-2:#E1AC6E; --accent-2-soft:#372B1B;
  --success:#72C08F; --success-soft:#1D3324; --danger:#E58B82; --danger-soft:#3A2320;
  --warn:#E7C077; --warn-soft:#362C1A;
  --shadow:0 1px 2px rgba(0,0,0,.25),0 10px 28px -10px rgba(0,0,0,.5);
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;-webkit-text-size-adjust:100%;text-size-adjust:100%;touch-action:manipulation;}
body{background:var(--bg);color:var(--ink);font-family:var(--font-body);}
.app{display:flex;min-height:100vh;background:var(--bg);color:var(--ink);}
::selection{background:var(--accent-soft);color:var(--ink);}
button{font-family:inherit;}
a{color:inherit;}
h1,h2,h3{text-wrap:balance;margin:0;}
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:8px;}

/* ---------- sidebar ---------- */
.sidebar{width:236px;flex:0 0 236px;background:var(--surface-3);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:20px 14px;position:sticky;top:0;height:100vh;overflow-y:auto;}
.brand{display:flex;align-items:center;gap:10px;padding:6px 10px 22px;}
.brand-mark{width:34px;height:34px;display:flex;align-items:center;justify-content:center;flex:none;}
.brand-mark svg{display:block;}
.brand-name{font-family:var(--font-display);font-weight:600;font-size:20px;letter-spacing:-.01em;}
.nav{display:flex;flex-direction:column;gap:2px;}
.nav-item{display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:var(--radius-s);color:var(--ink-muted);text-decoration:none;font-size:14.5px;font-weight:600;cursor:pointer;border:none;background:none;width:100%;text-align:left;}
.nav-item:hover{background:var(--surface-2);color:var(--ink);}
.nav-item.active{background:var(--accent-soft);color:var(--accent);}
.nav-item .ic{width:19px;height:19px;flex:none;}
.nav-spacer{flex:1;}
.sidebar-foot{padding:12px 10px 4px;font-size:12px;color:var(--ink-faint);border-top:1px solid var(--border);margin-top:8px;padding-top:14px;}
@keyframes pulse{50%{opacity:.35;}}
.tabbar{display:none;}

/* ---------- main ---------- */
.main{flex:1;min-width:0;}
.view{padding:34px 40px 80px;max-width:1180px;margin:0 auto;}
.view-narrow{max-width:760px;}
.page-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:26px;flex-wrap:wrap;}
.page-title{font-family:var(--font-display);font-size:30px;font-weight:600;letter-spacing:-.01em;}
.page-sub{color:var(--ink-muted);font-size:14.5px;margin-top:4px;}

/* ---------- generic ---------- */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-m);}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:14px;padding:11px 18px;border-radius:99px;border:1px solid transparent;cursor:pointer;transition:transform .08s ease;}
.btn:active{transform:scale(.97);}
.btn-primary{background:var(--accent);color:var(--accent-ink);}
.btn-primary:hover{filter:brightness(1.05);}
.btn-ghost{background:var(--surface-2);color:var(--ink);}
.btn-ghost:hover{background:var(--surface);border-color:var(--border);}
.btn-outline{background:transparent;border-color:var(--border);color:var(--ink);}
.btn-outline:hover{background:var(--surface-2);}
.btn-danger{background:var(--danger-soft);color:var(--danger);}
.btn:disabled{opacity:.45;cursor:not-allowed;}
.btn-sm{padding:7px 13px;font-size:12.5px;}
.btn-block{width:100%;}
.pill{display:inline-flex;align-items:center;gap:5px;font-size:11.5px;font-weight:700;padding:3px 9px;border-radius:99px;letter-spacing:.01em;}
.pill-level-A1,.pill-level-A2{background:var(--success-soft);color:var(--success);}
.pill-level-B1,.pill-level-B2{background:var(--warn-soft);color:var(--warn);}
.pill-level-C1{background:var(--danger-soft);color:var(--danger);}
.pill-muted{background:var(--surface-2);color:var(--ink-muted);}
.pill-accent{background:var(--accent-soft);color:var(--accent);}
.tag{background:var(--surface-2);color:var(--ink-muted);font-size:11.5px;font-weight:600;padding:3px 9px;border-radius:99px;}
.icon-btn{width:34px;height:34px;border-radius:50%;border:1px solid var(--border);background:var(--surface);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;color:var(--ink-muted);flex:none;}
.icon-btn:hover{background:var(--surface-2);color:var(--ink);}
svg{display:block;}

/* ---------- onboarding ---------- */
.onboard-wrap{display:flex;justify-content:center;padding:28px 20px;}
.onboard-card{max-width:400px;width:100%;padding:36px 32px;text-align:center;}
.onboard-title{font-family:var(--font-display);font-size:26px;font-weight:600;margin-bottom:8px;}
.onboard-logo{display:flex;justify-content:center;margin-bottom:16px;}
.onboard-logo svg{filter:drop-shadow(0 6px 14px color-mix(in srgb, var(--accent) 35%, transparent));}
.onboard-sub{color:var(--ink-muted);font-size:14px;margin-bottom:26px;line-height:1.5;}
.code-input{width:100%;text-align:center;font-family:var(--font-mono);font-size:28px;letter-spacing:.35em;padding:14px 10px 14px 18px;border-radius:var(--radius-s);border:1px solid var(--border);background:var(--surface);color:var(--ink);}
.code-input:focus{outline:2px solid var(--accent);}
.onboard-error{color:var(--danger);font-size:13px;margin-top:12px;min-height:18px;}
.level-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:6px;}
.level-btn{padding:18px 10px;border-radius:var(--radius-m);border:1px solid var(--border);background:var(--surface);cursor:pointer;text-align:center;}
.level-btn:hover{border-color:var(--accent);background:var(--accent-soft);}
.level-btn .lv-code{font-family:var(--font-display);font-size:22px;font-weight:600;}
.level-btn .lv-name{font-size:12px;color:var(--ink-muted);margin-top:2px;}

/* ---------- dashboard ---------- */
.home-head{margin-bottom:18px;}
.home-head-row{display:flex;align-items:center;gap:10px;margin-top:6px;flex-wrap:wrap;}
.level-pill-big{font-size:12.5px;padding:5px 12px;}
.compact-stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:18px;}
.compact-stat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-s);padding:10px 8px;text-align:center;}
.cs-num{font-family:var(--font-mono);font-size:20px;font-weight:700;letter-spacing:-.01em;}
.cs-label{font-size:11px;color:var(--ink-muted);font-weight:600;margin-top:1px;}
.home-tasks-card{padding:18px 20px;}
.home-tasks-head{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;margin-bottom:12px;flex-wrap:wrap;}
.today-chip-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:8px;}
.today-chip{display:flex;flex-direction:column;align-items:center;gap:4px;padding:10px 4px;border-radius:var(--radius-s);background:var(--surface-2);border:1px solid transparent;cursor:pointer;text-align:center;}
.today-chip:hover{border-color:var(--border);}
.today-chip.done{background:var(--success-soft);}
.today-chip .tc-ic{width:26px;height:26px;border-radius:7px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:13px;}
.today-chip.done .tc-ic{background:var(--success);color:#fff;}
.today-chip .tc-label{font-size:10px;font-weight:700;line-height:1.2;}
.today-chip .tc-count{font-family:var(--font-mono);font-size:9.5px;color:var(--ink-muted);}
.today-chip.done .tc-count{color:var(--success);font-weight:700;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:26px;}
.stat-card{padding:18px 20px;display:flex;flex-direction:column;gap:6px;}
.stat-num{font-family:var(--font-mono);font-size:30px;font-weight:600;letter-spacing:-.02em;font-variant-numeric:tabular-nums;}
.stat-label{font-size:13px;color:var(--ink-muted);font-weight:600;}
.cta-row{display:grid;grid-template-columns:1.3fr 1fr;gap:14px;margin-bottom:26px;}
.cta-card{padding:24px 26px;display:flex;flex-direction:column;gap:12px;position:relative;overflow:hidden;}
.cta-card.primary{background:var(--accent);color:var(--accent-ink);}
.cta-card.primary .cta-sub{color:color-mix(in srgb, var(--accent-ink) 75%, transparent);}
.cta-title{font-family:var(--font-display);font-size:22px;font-weight:600;}
.cta-sub{font-size:13.5px;color:var(--ink-muted);}
.cta-card.primary .btn-primary{background:var(--accent-ink);color:var(--accent);}
.cta-card .btn-outline{border-color:currentColor;}
.two-col{display:grid;grid-template-columns:1.1fr .9fr;gap:16px;}
.section-title{font-family:var(--font-display);font-size:17px;font-weight:600;margin-bottom:12px;}
.panel{padding:20px 22px;}
.level-row{display:flex;align-items:center;gap:12px;padding:9px 0;}
.level-row .lv-label{width:96px;flex:none;font-size:12.5px;font-weight:700;color:var(--ink-muted);}
.bar-track{flex:1;height:8px;border-radius:99px;background:var(--surface-2);overflow:hidden;}
.bar-fill{height:100%;border-radius:99px;background:var(--accent);transition:width .3s ease;}
.level-row .lv-count{width:64px;flex:none;text-align:right;font-family:var(--font-mono);font-size:12px;color:var(--ink-muted);}
.chart-wrap{padding:20px 22px;}
.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
.info-card{padding:18px 20px;display:flex;flex-direction:column;gap:6px;}
.info-ic{font-size:20px;line-height:1;}
.info-title{font-weight:700;font-size:14px;}
.info-text{font-size:12.5px;color:var(--ink-muted);line-height:1.5;}

/* ---------- block picker ---------- */
.tasks-cta{margin-bottom:16px;}
.tasks-cta .btn{width:100%;padding:14px 18px;font-size:15px;}
.overall-progress-strip{display:flex;align-items:center;gap:12px;margin-bottom:22px;padding:0 2px;}
.overall-progress-strip .ops-label{font-size:12px;color:var(--ink-muted);white-space:nowrap;}
.overall-progress-strip .ops-pct{font-family:var(--font-mono);font-size:12px;color:var(--ink-muted);white-space:nowrap;}
.overall-progress-strip .bar-track{height:5px;}
.overall-progress .bar-track{height:12px;margin-top:10px;}
.block-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
.block-card{padding:20px;cursor:pointer;display:flex;flex-direction:column;gap:8px;position:relative;}
.block-card:hover{border-color:var(--accent);}
.block-ic{width:38px;height:38px;border-radius:10px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:18px;}
.block-title{font-weight:700;font-size:15px;}
.block-desc{font-size:12.5px;color:var(--ink-muted);line-height:1.4;}
.block-progress{margin-top:6px;}
.block-progress .bar-track{height:6px;}
.block-progress-label{font-family:var(--font-mono);font-size:11px;color:var(--ink-muted);margin-top:4px;}
.block-done .block-ic{background:var(--success-soft);color:var(--success);}
.block-body{display:contents;}
.block-num{color:var(--ink-faint);font-weight:600;margin-right:4px;}
.block-soon{cursor:default;opacity:.55;}
.block-soon:hover{border-color:var(--border);}
.block-soon .block-ic{background:var(--surface-2);color:var(--ink-faint);}
.soon-badge{display:inline-block;font-size:10px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--ink-muted);background:var(--surface-2);border-radius:99px;padding:2px 7px;vertical-align:middle;margin-left:2px;}

/* ---------- session / swipe flashcard ---------- */
.session-shell{max-width:640px;margin:0 auto;}
.session-back{margin-bottom:14px;}
.session-goal{margin-bottom:16px;}
.session-goal-row{display:flex;justify-content:space-between;font-size:12.5px;color:var(--ink-muted);margin-bottom:6px;}
.session-goal-row b{color:var(--ink);font-family:var(--font-mono);font-weight:700;}
.session-goal .bar-track{height:7px;}
.session-goal.goal-met .bar-fill{background:var(--success);}
.flash-stage{position:relative;}
.flash{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-l);
  min-height:340px;display:flex;flex-direction:column;align-items:center;justify-content:flex-start;text-align:center;
  padding:78px 28px 66px;gap:14px;box-shadow:var(--shadow);position:relative;width:100%;
  touch-action:none;user-select:none;cursor:grab;overflow:hidden;z-index:2;
}
.flash.swiping{transition:none;cursor:grabbing;}
.flash-badges{position:absolute;top:18px;left:20px;right:20px;display:flex;justify-content:space-between;align-items:flex-start;pointer-events:none;z-index:1;}
.flash-badges .right-badges{display:flex;gap:8px;align-items:center;pointer-events:auto;}
.flash-word{font-family:var(--font-display);font-size:44px;font-weight:600;letter-spacing:-.01em;line-height:1.1;}
.flash-ipa{font-family:var(--font-mono);color:var(--ink-muted);font-size:15px;}
.flash-translation{
  width:100%;max-width:420px;margin-top:16px;padding:16px 18px;background:var(--surface-2);
  border:1px solid var(--border);border-radius:var(--radius-m);display:flex;flex-direction:column;gap:10px;
}
.flash-ru{font-family:var(--font-display);font-size:24px;color:var(--accent-2);font-weight:600;}
.flash-ex{font-size:14.5px;line-height:1.5;color:var(--ink-muted);}
.flash-ex mark{background:var(--accent-soft);color:var(--accent);padding:0 3px;border-radius:4px;font-weight:700;}
.flash-ex-ru{font-size:13px;line-height:1.5;color:var(--ink-faint);}
.flash-hint{margin-top:10px;font-size:12.5px;font-weight:700;color:var(--accent);background:var(--accent-soft);padding:7px 16px;border-radius:99px;pointer-events:none;}
.flash-content{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:2px;width:100%;}
.swipe-zone{
  position:absolute;left:0;right:0;height:50px;display:flex;align-items:center;
  justify-content:center;gap:8px;transition:opacity .06s linear;pointer-events:none;z-index:0;
}
.swipe-zone.up{top:0;background:linear-gradient(to bottom, color-mix(in srgb, var(--success) 30%, transparent), transparent);opacity:.55;}
.swipe-zone.down{bottom:0;background:linear-gradient(to top, color-mix(in srgb, var(--danger) 30%, transparent), transparent);opacity:.55;}
.swipe-zone .sz-arrow{font-size:26px;line-height:1;}
.swipe-zone.up .sz-arrow,.swipe-zone.up .sz-label{color:var(--success);}
.swipe-zone.down .sz-arrow,.swipe-zone.down .sz-label{color:var(--danger);}
.swipe-zone .sz-label{font-size:14px;font-family:var(--font-display);font-weight:700;}
.session-empty{text-align:center;padding:70px 20px;color:var(--ink-muted);}
.session-empty .big-ic{font-size:44px;margin-bottom:10px;}
.goal-modal{text-align:center;}
.goal-modal .big-ic{font-size:48px;margin-bottom:10px;}

/* ---------- bank ---------- */
.bank-controls{display:flex;gap:10px;margin-bottom:16px;flex-wrap:wrap;align-items:center;}
.search-input{flex:1;min-width:220px;padding:11px 16px;border-radius:99px;border:1px solid var(--border);background:var(--surface);color:var(--ink);font-size:14px;}
.search-input:focus{outline:2px solid var(--accent);outline-offset:1px;}
.chip-select{padding:10px 14px;border-radius:99px;border:1px solid var(--border);background:var(--surface);color:var(--ink);font-size:13px;font-weight:600;}
.bank-table-wrap{overflow-x:auto;}
.bank-table{width:100%;min-width:560px;border-collapse:collapse;}
.bank-row{cursor:pointer;border-bottom:1px solid var(--border);}
.bank-row:hover{background:var(--surface-2);}
.bank-row td{padding:11px 10px;font-size:14px;vertical-align:middle;}
.bank-word{font-weight:700;font-family:var(--font-display);font-size:16px;}
.bank-ru{color:var(--ink-muted);}
.status-dot{width:8px;height:8px;border-radius:50%;display:inline-block;margin-right:6px;}
.status-new .status-dot{background:var(--ink-faint);}
.status-review .status-dot{background:var(--accent);}
.status-mastered .status-dot{background:var(--success);}
.bank-count{color:var(--ink-muted);font-size:13px;margin:10px 0 20px;}
.star-btn{background:none;border:none;cursor:pointer;color:var(--ink-faint);padding:4px;}
.star-btn.on{color:var(--accent-2);}
.load-more{display:flex;justify-content:center;margin-top:18px;}

/* ---------- word detail modal ---------- */
.modal-backdrop{position:fixed;inset:0;background:rgba(10,14,11,.45);display:flex;align-items:center;justify-content:center;z-index:50;padding:20px;}
.modal{background:var(--surface);border-radius:var(--radius-l);max-width:480px;width:100%;padding:30px;box-shadow:var(--shadow);max-height:88vh;overflow-y:auto;}
.modal-top{display:flex;justify-content:space-between;align-items:flex-start;}
.modal-actions{display:flex;gap:10px;margin-top:22px;flex-wrap:wrap;}
.help-fab{
  position:fixed;top:16px;right:16px;width:34px;height:34px;border-radius:50%;z-index:60;
  background:var(--surface);border:1px solid var(--border);color:var(--ink-muted);font-family:var(--font-display);
  font-weight:700;font-size:15px;cursor:pointer;box-shadow:var(--shadow);
}
.help-fab:hover{color:var(--accent);border-color:var(--accent);}
.help-list{display:flex;flex-direction:column;gap:14px;margin-top:16px;text-align:left;}
.help-item{display:flex;gap:12px;align-items:flex-start;font-size:13.5px;line-height:1.5;color:var(--ink-muted);}
.help-item b{color:var(--ink);}
.help-num{width:22px;height:22px;border-radius:50%;background:var(--accent-soft);color:var(--accent);font-family:var(--font-mono);font-weight:700;font-size:11.5px;display:flex;align-items:center;justify-content:center;flex:none;margin-top:1px;}
.modal-meta{display:flex;gap:8px;margin:10px 0 4px;flex-wrap:wrap;}

/* ---------- practice item screens ---------- */
.practice-shell{max-width:600px;margin:0 auto;}
.practice-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px;}
.score-pill{font-family:var(--font-mono);font-size:13px;color:var(--ink-muted);}
.mc-options{display:grid;gap:10px;margin-top:22px;}
.mc-opt{text-align:left;padding:14px 16px;border-radius:var(--radius-s);border:1px solid var(--border);background:var(--surface);cursor:pointer;font-size:15px;font-weight:600;}
.mc-opt:hover{background:var(--surface-2);}
.mc-opt.correct{background:var(--success-soft);border-color:var(--success);color:var(--success);}
.mc-opt.wrong{background:var(--danger-soft);border-color:var(--danger);color:var(--danger);}
.type-input{width:100%;padding:14px 16px;border-radius:var(--radius-s);border:1px solid var(--border);background:var(--surface);color:var(--ink);font-size:17px;font-family:var(--font-mono);margin-top:16px;}
.type-input:focus{outline:2px solid var(--accent);}
.type-input.correct{border-color:var(--success);}
.type-input.wrong{border-color:var(--danger);}
.feedback-row{margin-top:14px;font-size:14px;min-height:22px;}
.feedback-row.correct{color:var(--success);}
.feedback-row.wrong{color:var(--danger);}
.mic-row{display:flex;flex-direction:column;align-items:center;gap:12px;margin-top:20px;}
.mic-btn{width:64px;height:64px;border-radius:50%;background:var(--accent);color:var(--accent-ink);border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;}
.mic-btn.listening{animation:pulse 1s infinite;background:var(--danger);}
.heard-text{font-family:var(--font-mono);font-size:14px;color:var(--ink-muted);min-height:20px;}

/* ---------- stats ---------- */
.donut-wrap{display:flex;align-items:center;gap:24px;}
.legend{display:flex;flex-direction:column;gap:8px;font-size:13px;}
.legend-item{display:flex;align-items:center;gap:8px;}
.legend-dot{width:9px;height:9px;border-radius:50%;flex:none;}
.heatmap{display:grid;grid-auto-flow:column;grid-template-rows:repeat(7,1fr);gap:3px;overflow-x:auto;padding-bottom:4px;}
.heat-cell{width:12px;height:12px;border-radius:3px;background:var(--surface-2);}

/* ---------- settings ---------- */
.field-group{margin-bottom:24px;}
.field-label{font-weight:700;font-size:14px;margin-bottom:6px;}
.field-hint{font-size:12.5px;color:var(--ink-muted);margin-bottom:10px;}
.slider-row{display:flex;align-items:center;gap:14px;}
input[type=range]{flex:1;accent-color:var(--accent);}
.range-val{font-family:var(--font-mono);font-weight:600;width:32px;text-align:right;}
.settings-row{display:flex;justify-content:space-between;align-items:center;padding:14px 0;border-bottom:1px solid var(--border);gap:14px;}
.category-row{display:flex;justify-content:space-between;align-items:center;padding:14px 0;border-bottom:1px solid var(--border);gap:14px;cursor:pointer;}
.category-row:last-child{border-bottom:none;}
.category-row:hover .cat-row-title{color:var(--accent);}
.cat-row-main{display:flex;align-items:center;gap:12px;}
.cat-row-main .ic{width:20px;height:20px;color:var(--ink-muted);flex:none;}
.cat-row-title{font-weight:700;font-size:14.5px;}
.cat-row-arrow{font-size:20px;color:var(--ink-faint);}
.settings-row:last-child{border-bottom:none;}
.toast{position:fixed;bottom:26px;left:50%;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:11px 20px;border-radius:99px;font-size:13.5px;font-weight:600;box-shadow:var(--shadow);z-index:100;opacity:0;pointer-events:none;transition:opacity .2s, transform .2s;}
.toast.show{opacity:1;transform:translateX(-50%) translateY(-6px);}

/* ===== visual feedback: flashes + confetti (replaces sound) ===== */
.screen-flash{position:fixed;inset:0;z-index:250;pointer-events:none;opacity:0;}
.screen-flash.good{background:radial-gradient(circle at 50% 18%, color-mix(in srgb, var(--success) 50%, transparent), transparent 68%);animation:flashPop .5s ease-out forwards;}
.screen-flash.hard{background:radial-gradient(circle at 50% 82%, color-mix(in srgb, var(--danger) 42%, transparent), transparent 68%);animation:flashPop .5s ease-out forwards;}
.screen-flash.celebrate{background:radial-gradient(circle at 50% 35%, color-mix(in srgb, var(--accent-2) 55%, transparent), transparent 72%),radial-gradient(circle at 50% 65%, color-mix(in srgb, var(--accent) 45%, transparent), transparent 75%);animation:flashPop .9s ease-out forwards;}
.screen-flash.transition{background:radial-gradient(circle at 50% 50%, color-mix(in srgb, var(--accent) 28%, transparent), transparent 70%);animation:flashPop .35s ease-out forwards;}
@keyframes flashPop{0%{opacity:0;}18%{opacity:1;}100%{opacity:0;}}
.confetti-piece{position:fixed;top:12%;width:8px;height:8px;border-radius:2px;z-index:260;pointer-events:none;animation:confettiFall 1.1s cubic-bezier(.2,.6,.4,1) forwards;}
@keyframes confettiFall{0%{transform:translate(0,0) rotate(0deg);opacity:1;}100%{transform:translate(var(--dx),480px) rotate(var(--rot));opacity:0;}}
.flash.flash-good{box-shadow:0 0 0 3px var(--success), var(--shadow);}
.flash.flash-hard{box-shadow:0 0 0 3px var(--danger), var(--shadow);}

@media (max-width:880px){
  .sidebar{display:none;}
  .view{padding:20px 16px 90px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .cta-row{grid-template-columns:1fr;}
  .two-col{grid-template-columns:1fr;}
  .block-grid{grid-template-columns:1fr 1fr;}
  .info-grid{grid-template-columns:1fr;}
  .today-chip-grid{grid-template-columns:repeat(3,1fr);}
  .compact-stat-row{grid-template-columns:repeat(3,1fr);}
  .tabbar{
    display:flex;position:fixed;bottom:0;left:0;right:0;
    background:color-mix(in srgb, var(--surface-3) 88%, transparent);
    backdrop-filter:blur(14px) saturate(1.4);-webkit-backdrop-filter:blur(14px) saturate(1.4);
    border-top:1px solid var(--border);justify-content:space-around;
    padding:8px 6px calc(10px + env(safe-area-inset-bottom));
    box-shadow:0 -6px 20px -10px rgba(26,33,29,.18);
    z-index:40;touch-action:manipulation;
  }
  .tab-item{
    display:flex;flex-direction:column;align-items:center;gap:3px;background:none;border:none;
    color:var(--ink-muted);font-size:10.5px;font-weight:700;letter-spacing:.1px;
    padding:6px 4px;flex:1;border-radius:var(--radius-s);
    transition:color .15s ease, transform .12s ease;
  }
  .tab-item:active{transform:scale(.93);}
  .tab-item.active{color:var(--accent);}
  .tab-item .ic{width:20px;height:20px;transition:transform .15s ease;}
  .tab-item.active .ic{transform:translateY(-1px);}
  .tab-item-main{padding-top:0;}
  .tab-main-circle{
    width:46px;height:46px;border-radius:50%;
    background:linear-gradient(155deg, var(--accent), color-mix(in srgb, var(--accent) 78%, #000));
    color:var(--accent-ink);display:flex;align-items:center;justify-content:center;
    margin-top:-24px;box-shadow:0 6px 16px -4px color-mix(in srgb, var(--accent) 55%, transparent);
    border:3px solid var(--surface-3);transition:box-shadow .15s ease, transform .12s ease;
  }
  .tab-item-main:active .tab-main-circle{transform:scale(.94);}
  .tab-item-main .ic{width:22px;height:22px;}
  .tab-item-main span{margin-top:4px;}
  .tab-item-main.active .tab-main-circle{box-shadow:0 0 0 4px var(--accent-soft), 0 6px 16px -4px color-mix(in srgb, var(--accent) 55%, transparent);}
}
@media (max-width:600px){
  .block-grid{grid-template-columns:1fr;gap:8px;}
  .block-card{flex-direction:row;align-items:center;padding:12px 14px;gap:12px;}
  .block-ic{width:34px;height:34px;font-size:16px;flex:none;}
  .block-body{display:flex;flex-direction:column;gap:3px;flex:1;min-width:0;}
  .block-body .block-title{font-size:14px;}
  .block-desc{display:none;}
  .block-progress{margin-top:0;}
}
@media (max-width:520px){
  .flash-word{font-size:32px;}
}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}