*,:before,:after{box-sizing:border-box}html,body{background:var(--surface);height:100%;margin:0}body{font-family:var(--font);color:var(--text);-webkit-font-smoothing:antialiased;font-size:14px;line-height:1.45}button,input{font:inherit;color:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed}:focus-visible{box-shadow:var(--focus-ring);outline:none}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}
.icon{flex-shrink:0;display:block}.spinner{animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}@media (prefers-reduced-motion:reduce){.spinner{animation-duration:2.4s}}.btn{border-radius:var(--radius-pill);min-height:42px;transition:background-color var(--ease), color var(--ease), transform .12s ease, opacity var(--ease);border:0;justify-content:center;align-items:center;gap:8px;padding:0 20px;font-size:14px;font-weight:700;text-decoration:none;display:inline-flex}.btn:active:not(:disabled){transform:scale(.98)}.btn:disabled{opacity:.55}.btn--block{width:100%}.btn--sm{min-height:38px;padding:0 18px;font-size:13px}.btn--lg{min-height:48px;font-size:15px;font-weight:800}.btn--primary{background:var(--primary);color:#fff}.btn--primary:hover:not(:disabled){background:var(--primary-dark)}.btn--secondary{background:var(--primary-light);color:var(--primary)}.btn--secondary:hover:not(:disabled){background:#d6e6ff}.btn--dark{background:var(--text);color:#fff}.btn--dark:hover:not(:disabled){background:#1e293b}.btn--white{color:var(--primary);background:#fff}.btn--white:hover:not(:disabled){background:var(--primary-light)}.btn--white:focus-visible{box-shadow:0 0 0 3px #fff9}.btn--ghost{color:var(--primary);background:0 0;padding:0 10px}.btn--ghost:hover:not(:disabled){background:var(--primary-light)}.text-btn{color:var(--primary);background:0 0;border:0;border-radius:8px;margin:-4px -6px;padding:4px 6px;font-size:12px;font-weight:600}.text-btn:hover{color:var(--primary-dark);background:var(--primary-light)}.pill-amber{background:var(--yellow);height:22px;color:var(--amber-text);white-space:nowrap;border-radius:11px;align-items:center;padding:0 8px;font-size:11px;font-weight:700;display:inline-flex}.header{flex-shrink:0;position:relative;overflow:hidden}.header--brand{background:var(--primary);color:#fff;padding:16px 16px 18px}.header--plain{border-bottom:1px solid var(--divider);background:#fff;padding:14px 16px}.header-swoosh{pointer-events:none;-webkit-user-select:none;user-select:none;position:absolute}.header-swoosh--yellow{width:80px;top:-40px;right:56px;transform:rotate(90deg)}.header-swoosh--pink{width:80px;bottom:-30px;right:-26px}.brand{align-items:center;gap:8px;display:flex;position:relative}.brand-logo{background:#fff;border-radius:8px;width:28px;height:28px;display:block}.brand-name{font-size:16px;font-weight:700}.header-content{margin-top:14px;position:relative}.source-card{color:var(--text);background:#fff;border-radius:14px;align-items:center;gap:12px;padding:10px 12px;display:flex}.source-card-icon{border-radius:12px;flex-shrink:0;place-items:center;width:40px;height:40px;display:grid}.source-card-icon--youtube{background:var(--pink);color:var(--youtube)}.source-card-icon--web{background:var(--primary-light);color:var(--primary)}.source-card-text{flex-direction:column;min-width:0;display:flex}.eyebrow{letter-spacing:.06em;text-transform:uppercase;color:var(--text-2);font-size:11px;font-weight:700}.source-card-title{white-space:nowrap;text-overflow:ellipsis;font-size:14px;font-weight:700;overflow:hidden}.header-top{justify-content:space-between;align-items:center;gap:8px;min-height:32px;display:flex;position:relative}.header-tools{flex-shrink:0;align-items:center;gap:6px;display:flex}.header-chip{border-radius:var(--radius-pill);background:linear-gradient(#ffffff29, #ffffff29), var(--primary);color:#fff;height:32px;font:inherit;white-space:nowrap;cursor:pointer;transition:background-color var(--ease);border:1px solid #ffffff59;align-items:center;gap:6px;padding:0 12px;font-size:13px;font-weight:600;text-decoration:none;display:inline-flex}.header-chip:hover{background:linear-gradient(#ffffff47, #ffffff47), var(--primary)}.header-chip:focus-visible{outline:none;box-shadow:0 0 0 3px #fff9}.welcome-top .header-chip{margin-right:auto;position:relative}.icon-btn{color:#fff;width:32px;height:32px;transition:background-color var(--ease);background:#ffffff29;border:0;border-radius:10px;flex-shrink:0;place-items:center;display:grid}.icon-btn:hover{background:#ffffff47}.icon-btn:focus-visible{box-shadow:0 0 0 3px #fff9}.results-title{flex-direction:column;gap:2px;min-width:0;display:flex}.results-count{letter-spacing:-.01em;font-size:22px;font-weight:800;line-height:1.2}.results-from{color:var(--primary-light);white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:500;overflow:hidden}.welcome{background:var(--primary);color:#fff;flex-direction:column;height:100vh;display:flex;position:relative;overflow:hidden}.welcome-swoosh--yellow{width:120px;top:-60px;left:-14px}.welcome-swoosh--pink{width:120px;top:250px;right:-36px}.welcome-top{justify-content:flex-end;align-items:center;gap:8px;padding:16px;display:flex;position:relative}.welcome-main{flex-direction:column;flex:1;justify-content:center;gap:24px;min-height:0;padding:0 28px;display:flex;position:relative}.sticker{background:var(--sticker);color:var(--text);font-family:var(--font-hand);border-radius:48% 40% 38% 43%;align-self:flex-start;padding:12px 20px;font-size:20px;font-weight:700;line-height:1.1;transform:rotate(-6deg)}.welcome-copy{flex-direction:column;gap:10px;display:flex}.welcome-title{letter-spacing:-.02em;margin:0;font-size:34px;font-weight:900;line-height:1.12}.welcome-lede{color:var(--primary-light);margin:0;font-size:15px;line-height:1.5}.feature-list{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.feature{color:var(--text);background:#fff;border-radius:14px;align-items:center;gap:12px;padding:10px 12px;font-size:14px;font-weight:600;display:flex}.feature-icon{border-radius:10px;flex-shrink:0;place-items:center;width:34px;height:34px;display:grid}.feature-icon--web{background:var(--primary-light);color:var(--primary)}.feature-icon--youtube{background:var(--pink);color:var(--youtube)}.feature-icon--study{background:var(--yellow);color:var(--text)}.welcome-bottom{flex-direction:column;gap:10px;padding:20px 28px 28px;display:flex;position:relative}.welcome-note{color:var(--primary-light);text-align:center;margin:0;font-size:12px}.welcome-retry{color:#fff;min-height:44px;font:inherit;text-underline-offset:3px;cursor:pointer;background:0 0;border:0;border-radius:9999px;align-self:center;padding:0 12px;font-size:13px;font-weight:700;text-decoration:underline;transition:background-color .15s}.welcome-retry:hover{background:#ffffff1f}.welcome-retry:focus-visible{outline-offset:2px;outline:2px solid #fff}.welcome-error{color:var(--danger);background:#fff;border-radius:12px;align-items:flex-start;gap:8px;margin:0;padding:10px 12px;font-size:13px;font-weight:600;display:flex}.inline-error{background:var(--danger-bg);color:var(--danger);border-radius:12px;align-items:flex-start;gap:8px;margin:0;padding:10px 12px;font-size:13px;font-weight:600;line-height:1.4;display:flex}.inline-error .icon{margin-top:1px}.webscan{flex-direction:column;gap:16px;padding:20px 16px;display:flex}.field{border:0;flex-direction:column;gap:8px;min-width:0;margin:0;padding:0;display:flex}.field-label{padding:0;font-size:13px;font-weight:700}.field-hint{color:var(--text-2);margin:0;font-size:12px}.segmented{background:var(--surface-alt);border:1px solid var(--divider);border-radius:var(--radius-pill);grid-template-columns:repeat(3,1fr);padding:3px;display:grid}.segmented-option{border-radius:var(--radius-pill);height:30px;color:var(--text-2);transition:background-color var(--ease), color var(--ease);background:0 0;border:0;font-size:13px;font-weight:600}.segmented-option:hover:not(:disabled):not([aria-checked=true]){color:var(--text)}.segmented-option[aria-checked=true]{background:var(--primary);color:#fff}.segmented-option:disabled{opacity:.6}.selection-card{background:var(--primary-light);border-radius:18px;flex-direction:column;gap:6px;padding:16px;display:flex}.selection-card .eyebrow{color:var(--primary-dark)}.selection-text{-webkit-line-clamp:6;overflow-wrap:anywhere;-webkit-box-orient:vertical;margin:0;font-size:14px;line-height:1.55;display:-webkit-box;overflow:hidden}.selection-empty{color:var(--text-2);margin:0;font-size:14px;line-height:1.5}.divider-or{color:var(--text-3);align-items:center;gap:12px;font-size:13px;display:flex}.divider-or:before,.divider-or:after{content:"";background:var(--divider);flex:1;height:1px}.scan-page{background:var(--yellow);border-radius:18px;align-items:center;gap:12px;padding:14px 16px;display:flex}.scan-page-text{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.scan-page-title{font-family:var(--font-hand);font-size:19px;font-weight:700;line-height:1.1}.scan-page-meta{color:var(--text-2);font-size:12px}.section-bar{border-bottom:1px solid var(--divider);flex-shrink:0;justify-content:space-between;align-items:center;gap:8px;min-height:47px;padding:12px 16px;display:flex}.section-title{margin:0;font-size:14px;font-weight:700}.transcript{flex-direction:column;gap:2px;margin:0;padding:8px 12px;list-style:none;display:flex}.transcript-line{transition:background-color var(--ease);border-radius:12px;grid-template-columns:44px 1fr;gap:8px;padding:8px;display:grid}.transcript-line:hover{background:var(--surface-alt)}.transcript-time{color:var(--primary);font-variant-numeric:tabular-nums;padding-top:1px;font-size:12px;font-weight:700}.transcript-text{color:var(--text);margin:0;font-size:13px;line-height:1.5}.hl{color:inherit;border-radius:4px;padding:0 3px;font-weight:700}.hl--0{background:var(--hl-1)}.hl--1{background:var(--hl-2)}.hl--2{background:var(--hl-3)}.chips{flex-wrap:wrap;gap:6px;max-height:88px;margin:0;padding:0;list-style:none;display:flex;overflow-y:auto}.chip{border-radius:var(--radius-pill);padding:4px 10px;font-size:12px;font-weight:600}.button-pair{grid-template-columns:1fr 1fr;gap:8px;display:grid}.state{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:8px;min-height:0;padding:32px 24px;display:flex;position:relative;overflow:hidden}.state--compact{flex:none;padding:40px 24px}.state-swoosh--yellow{width:90px;top:24px;left:-20px}.state-swoosh--pink{width:90px;bottom:60px;right:-30px}.state-icon{background:var(--primary-light);width:56px;height:56px;color:var(--primary);border-radius:28px;place-items:center;margin-bottom:8px;display:grid;position:relative}.state-icon--danger{background:var(--danger-bg);color:var(--danger)}.state-icon--muted{background:var(--surface-alt);color:var(--text-2)}.state-title{margin:0;font-size:18px;font-weight:800;position:relative}.state-text{color:var(--text-2);max-width:280px;margin:0;font-size:13px;line-height:1.5;position:relative}.state-action{margin-top:12px;position:relative}.saved-sticker{align-self:center;margin-bottom:12px;position:relative}.saved-count{letter-spacing:-.02em;margin:0;font-size:30px;font-weight:900;position:relative}.saved-steps{gap:10px;margin:8px 0 4px;display:flex;position:relative}.saved-step{background:var(--yellow);text-align:left;border-radius:14px;align-items:center;gap:8px;padding:10px 14px;font-size:13px;font-weight:600;display:flex}.list-bar{border-bottom:1px solid var(--divider);flex-shrink:0;align-items:center;gap:8px;padding:12px 16px;display:flex}.check-label{color:var(--primary);background:0 0;border:0;border-radius:8px;align-items:center;gap:6px;margin:-4px;padding:4px;font-size:13px;font-weight:600;display:inline-flex}.checkbox{border:1.5px solid var(--border);background:var(--surface-alt);color:#fff;width:22px;height:22px;transition:background-color var(--ease), border-color var(--ease);border-radius:6px;flex-shrink:0;place-items:center;display:grid}.checkbox .icon{opacity:0;transition:opacity var(--ease), transform var(--ease);transform:scale(.6)}.checkbox--on,.checkbox--mixed{background:var(--primary);border-color:var(--primary)}.checkbox--on .icon,.checkbox--mixed .icon{opacity:1;transform:scale(1)}.checkbox-dash{background:#fff;border-radius:1px;width:10px;height:2px}.list-bar .pill-amber{margin-left:auto}.words{flex-direction:column;gap:6px;margin:0;padding:8px 12px;list-style:none;display:flex}.word-row{background:var(--surface-alt);transition:background-color var(--ease), border-color var(--ease);border:1.5px solid #0000;border-radius:14px;align-items:flex-start;gap:10px;padding:10px 12px;display:flex}.word-row--on{border-color:var(--primary);background:#fff}.word-check{background:0 0;border:0;border-radius:6px;margin-top:1px;padding:0}.word-main{flex:1;min-width:0}.word-head{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.word-text{text-align:left;background:0 0;border:0;border-radius:4px;padding:0;font-size:14px;font-weight:700}.cefr{border:1px solid;border-radius:10px;padding:2px 8px;font-size:11px;font-weight:700;line-height:1.3}.cefr--A1,.cefr--A2{color:#047857;background:#eaf8f0;border-color:#34d399}.cefr--B1{border-color:var(--primary);color:var(--primary-dark);background:#e8f0ff}.cefr--B2{color:#e11d48;background:#fff7ed;border-color:#fb7185}.cefr--C1,.cefr--C2{background:var(--pink);color:#e11d48;border-color:#fb7185}.word-example{color:var(--text-2);-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:3px 0 0;font-size:12px;line-height:1.4;display:-webkit-box;overflow:hidden}.word-picker{margin-top:8px}.picker{max-width:100%;display:inline-flex;position:relative}.picker-btn{border-radius:var(--radius-pill);border:1px solid var(--border);max-width:100%;height:28px;transition:border-color var(--ease);background:#fff;align-items:center;gap:6px;padding:0 8px 0 4px;display:inline-flex}.picker-btn:hover,.picker-btn[aria-expanded=true]{border-color:var(--primary)}.picker-btn-name{white-space:nowrap;text-overflow:ellipsis;font-size:12px;font-weight:600;overflow:hidden}.picker-btn .icon{color:var(--text-2)}.swatch{border-radius:6px;flex-shrink:0;place-items:center;width:20px;height:20px;font-size:10px;font-weight:800;display:grid;position:relative;overflow:hidden}.swatch--md{border-radius:8px;width:26px;height:26px;font-size:11px}.swatch--lg{border-radius:9px;width:32px;height:32px;font-size:12px}.swatch-logo{object-fit:cover;width:100%;height:100%;position:absolute;inset:0}.picker-menu{z-index:20;width:240px;max-height:300px;box-shadow:0 12px 32px #0f172a2e, 0 0 0 1px var(--divider);background:#fff;border-radius:14px;flex-direction:column;gap:2px;margin:0;padding:6px;list-style:none;animation:.14s menu-in;display:flex;position:absolute;top:34px;left:0;overflow-y:auto}.picker-menu--up{top:auto;bottom:34px}.picker-menu--right{left:auto;right:0}@keyframes menu-in{0%{opacity:0;transform:translateY(-4px)}}.picker-list{flex-direction:column;gap:2px;margin:0;padding:0;list-style:none;display:flex}.picker-option{text-align:left;width:100%;transition:background-color var(--ease);background:0 0;border:0;border-radius:10px;align-items:center;gap:10px;padding:5px 8px;display:flex}.picker-option:hover,.picker-option:focus-visible{background:var(--surface-alt)}.picker-option[aria-selected=true]{background:var(--primary-light)}.picker-option-text{flex-direction:column;flex:1;min-width:0;display:flex}.picker-option-name{white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:600;overflow:hidden}.picker-option-count{color:var(--text-2);font-size:11px}.picker-current{background:var(--primary);color:#fff;border-radius:10px;flex-shrink:0;place-items:center;width:20px;height:20px;display:grid}.picker-new{border:0;border-top:1px solid var(--divider);width:100%;color:var(--primary);text-align:left;background:0 0;border-radius:0 0 10px 10px;align-items:center;gap:10px;margin-top:2px;padding:7px 8px;font-size:13px;font-weight:700;display:flex}.picker-new:hover{background:var(--surface-alt)}.picker-new-icon{border:1.5px dashed var(--primary);border-radius:8px;flex-shrink:0;place-items:center;width:28px;height:28px;display:grid}.picker-new-form{border-top:1px solid var(--divider);align-items:center;gap:8px;margin-top:2px;padding:6px 4px 2px;display:flex}.picker-new-input{border:1.5px solid var(--border);background:#fff;border-radius:10px;flex:1;min-width:0;height:32px;padding:0 10px;font-size:13px}.picker-new-input:focus{border-color:var(--primary);box-shadow:var(--focus-ring);outline:none}.footer-head{justify-content:space-between;align-items:center;display:flex}.footer-title{margin:0;font-size:13px;font-weight:700}.summary-grid{grid-template-columns:1fr 1fr;gap:8px;margin:0;padding:0;list-style:none;display:grid}.summary-card{border-radius:12px;align-items:center;gap:8px;min-width:0;padding:8px;display:flex}.summary-text{flex-direction:column;min-width:0;display:flex}.summary-name{white-space:nowrap;text-overflow:ellipsis;font-size:12px;font-weight:700;overflow:hidden}.summary-meta{color:var(--text-2);font-size:11px}.btn--danger{background:var(--danger-fill);color:#fff}.btn--danger:hover:not(:disabled){background:#991b1b}.sheet,.alert-dialog{color:var(--text);background:0 0;border:0;max-width:100%;max-height:100%;padding:0;overflow:visible}.sheet::backdrop,.alert-dialog::backdrop{background:var(--backdrop)}.sheet{width:100%;margin:auto 0 0}.sheet-panel{max-height:calc(100dvh - var(--space-4));background:var(--surface);border-radius:var(--radius-2xl) var(--radius-2xl) 0 0;padding:var(--space-4) var(--space-6) max(var(--space-6), env(safe-area-inset-bottom));box-shadow:var(--shadow-md);flex-direction:column;display:flex}.sheet[open] .sheet-panel{animation:.22s sheet-up}.sheet-handle{border-radius:var(--radius-pill);background:var(--border-light);width:48px;height:6px;margin-bottom:var(--space-3);align-self:center}.sheet-header{align-items:flex-start;gap:var(--space-3);margin-bottom:var(--space-4);display:flex}.sheet-header--bare{justify-content:flex-end;margin-bottom:0}.sheet-heading{flex:1;min-width:0}.sheet-title{margin:0;font-size:1.125rem;font-weight:800;line-height:1.3}.sheet-description{margin:var(--space-1) 0 0;color:var(--text-2);font-size:.875rem}.sheet-close{width:var(--touch-target);height:var(--touch-target);margin:calc(var(--space-2) * -1) calc(var(--space-3) * -1) 0 0;border-radius:var(--radius-pill);color:var(--text-2);transition:background-color var(--ease);background:0 0;border:0;flex-shrink:0;place-items:center;display:grid}.sheet-close:hover{background:var(--surface-alt)}.sheet-body{overscroll-behavior:contain;flex:1;min-height:0;overflow-y:auto}.sheet-footer{gap:var(--space-2);padding-top:var(--space-4);display:flex}.sheet-footer>*{flex:1}@keyframes sheet-up{0%{transform:translateY(100%)}}@keyframes dialog-in{0%{opacity:0;transform:scale(.96)}}@media (min-width:768px){.sheet{width:min(480px, calc(100% - var(--space-12)));margin:auto}.sheet-panel{max-height:min(720px, calc(100dvh - var(--space-16)));border-radius:var(--radius-2xl);padding:var(--space-6)}.sheet[open] .sheet-panel{animation-name:dialog-in;animation-duration:.16s}.sheet-handle{display:none}}.alert-dialog{width:min(360px, calc(100% - var(--space-12)));margin:auto}.alert-dialog-panel{text-align:center;padding:var(--space-6);border-radius:var(--radius-2xl);background:var(--surface);box-shadow:var(--shadow-md);flex-direction:column;align-items:center;display:flex}.alert-dialog[open] .alert-dialog-panel{animation:.16s dialog-in}.alert-dialog-icon{border-radius:var(--radius-pill);width:64px;height:64px;margin-bottom:var(--space-5);background:var(--primary-light);color:var(--primary-ink);place-items:center;display:grid}.alert-dialog-icon--danger{background:var(--secondary-light);color:var(--danger)}.alert-dialog-title{margin:0 0 var(--space-2);font-size:1.25rem;font-weight:800;line-height:1.3}.alert-dialog-message{color:var(--text-2);margin:0;font-size:.875rem}.alert-dialog-actions{gap:var(--space-3);margin-top:var(--space-6);grid-template-columns:1fr 1fr;align-self:stretch;display:grid}.tag{border:1px solid var(--border-light);border-radius:var(--radius-xl);background:var(--surface-alt);max-width:100%;min-height:36px;color:var(--text-2);align-items:center;gap:6px;padding:0 14px;font-size:.875rem;font-weight:500;line-height:1.2;display:inline-flex;position:relative}.tag-label{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.tag--button{transition:background-color var(--ease), border-color var(--ease)}.tag--button:after{content:"";position:absolute;inset:-4px 0}.tag--button:hover:not(:disabled){border-color:var(--border)}.tag--button:disabled{opacity:.6}.tag--selected{background:var(--primary-light);border-color:var(--primary);color:var(--primary-ink)}.tag-remove{border-radius:var(--radius-pill);background:var(--surface);border:1px solid var(--border-light);width:18px;height:18px;color:var(--text-2);place-items:center;display:grid}.check-field{min-height:var(--touch-target);cursor:pointer;align-items:center;gap:10px;display:flex}.check-field--disabled{cursor:not-allowed;opacity:.6}.check-field .checkbox{border-radius:var(--radius-sm);border-width:1px;width:24px;height:24px}.check-field-input:focus-visible+.checkbox{box-shadow:var(--focus-ring)}.check-field-text{flex-direction:column;min-width:0;display:flex}.check-field-label{color:var(--text);font-size:.875rem;font-weight:500}.check-field-description{color:var(--text-2);font-size:.8125rem}.toggle-row{align-items:center;gap:var(--space-3);border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--surface);cursor:pointer;min-height:64px;padding:14px;display:flex}.toggle-row--disabled{cursor:not-allowed;opacity:.6}.toggle-row-icon{background:var(--primary-light);width:40px;height:40px;color:var(--primary-ink);border:1px solid #1670ff33;border-radius:14px;flex-shrink:0;place-items:center;display:grid}.toggle-row-text{gap:var(--space-1);flex-direction:column;flex:1;min-width:0;display:flex}.toggle-row-title{font-size:1rem;font-weight:700}.toggle-row-description{color:var(--text-2);font-size:.875rem}.switch{appearance:none;border-radius:var(--radius-pill);background:var(--border);width:51px;height:31px;cursor:inherit;flex-shrink:0;margin:0;transition:background-color .2s;position:relative}.switch:before{content:"";border-radius:var(--radius-pill);background:#fff;width:27px;height:27px;transition:transform .2s;position:absolute;top:2px;left:2px;box-shadow:0 2px 4px #0f172a33}.switch:checked{background:var(--primary)}.switch:checked:before{transform:translate(20px)}.field--disabled{opacity:.55}.field-input{width:100%;min-height:var(--touch-target);padding:14px var(--space-4);border-radius:var(--radius-md);background:var(--surface-alt);color:var(--text);transition:border-color var(--ease), box-shadow var(--ease);border:1.5px solid #0000;font-size:1rem}.field-input::placeholder{color:var(--text-2)}.field-input:focus{border-color:var(--primary);box-shadow:var(--focus-ring);outline:none}.field-input--invalid{border-color:var(--danger)}.field-error{color:var(--danger);align-items:flex-start;gap:6px;margin:0;font-size:.8125rem;font-weight:600;display:flex}.field-error svg{flex-shrink:0;margin-top:1px}.chip-group{gap:var(--space-1);padding:var(--space-1);border:1px solid var(--border-light);background:var(--surface-alt);border-radius:14px;display:flex}.chip-group-option{min-height:var(--touch-target);color:var(--text-2);transition:background-color var(--ease), color var(--ease);background:0 0;border:0;border-radius:10px;flex:1;font-size:.9375rem;font-weight:700}.chip-group-option:hover:not(.chip-group-option--on){color:var(--text)}.chip-group-option--on{background:var(--surface);color:var(--primary-ink);box-shadow:var(--shadow-sm)}.deck-icon{--deck-icon-size:64px;width:var(--deck-icon-size);height:var(--deck-icon-size);border-radius:calc(var(--deck-icon-size) * .22);color:#0f172a;flex-shrink:0;place-items:center;display:grid;position:relative;overflow:hidden}.deck-icon--sm{--deck-icon-size:40px}.deck-icon--lg{--deck-icon-size:96px}.deck-icon-emoji{font-size:calc(var(--deck-icon-size) * .44);line-height:1}.deck-icon-chars{font-size:calc(var(--deck-icon-size) * .28);letter-spacing:.02em;font-weight:600}.deck-icon-image{object-fit:cover;width:100%;height:100%;position:absolute;inset:0}.learn-tile{justify-content:center;align-items:center;gap:var(--space-2);min-height:52px;color:var(--text);transition:transform .12s ease, filter var(--ease);border:0;border-radius:18px;flex:1;padding:0 10px;font-size:.9375rem;font-weight:700;display:flex}.learn-tile:hover:not(:disabled){filter:brightness(.97)}.learn-tile:active:not(:disabled){transform:scale(.98)}.learn-tile--yellow{background:var(--card-yellow)}.learn-tile--pink{background:var(--card-pink)}.learn-tile--green{background:var(--card-green)}.learn-tile--blue{background:var(--card-blue)}.learn-tile--orange{background:var(--card-orange)}.learn-tile--soon{opacity:.55}.learn-tile-icon{place-items:center;display:grid}.learn-tile-tag{border-radius:var(--radius-pill);background:var(--surface);color:var(--text);padding:2px 6px;font-size:.625rem;font-weight:700}.word-item{padding:14px var(--space-3) var(--space-2);border-radius:var(--p4-radius);background:var(--p4-card);transition:border-color var(--ease), background-color var(--ease);border:1.5px solid #0000;flex-direction:column;gap:10px;display:flex;position:relative}.word-item--playing{border-color:var(--primary)}.word-item-line{align-items:flex-start;column-gap:10px;display:flex}.word-item-play,.word-item-play-example,.word-item-more,.word-item-add{z-index:1;position:relative}.word-item-play{border-radius:var(--radius-pill);background:var(--primary);color:#fff;border:0;flex-shrink:0;place-items:center;width:28px;height:28px;margin-top:-1px;display:grid}.word-item-play:after,.word-item-play-example:after{content:"";position:absolute;inset:-8px}.word-item-play--active{background:var(--primary-dark)}.word-item-text{gap:var(--space-1);flex-direction:column;flex:1;min-width:0;display:flex}.word-item-heading{margin:0}.word-item-open{color:var(--text);text-align:left;overflow-wrap:anywhere;background:0 0;border:0;padding:0;font-size:1.125rem;font-weight:700;line-height:23px}.word-item-open:after{content:"";border-radius:var(--p4-radius);position:absolute;inset:0}.word-item-open:focus-visible{box-shadow:none}.word-item-open:focus-visible:after{box-shadow:var(--focus-ring)}.word-item-pos{padding:2px var(--space-2);border:1px solid var(--border);border-radius:var(--radius-pill);background:var(--surface);color:var(--text-2);letter-spacing:.05em;text-transform:uppercase;align-self:flex-start;font-size:.6875rem;font-weight:700}.word-item-meaning,.word-item-translation{color:var(--text);margin:0;font-size:.875rem;line-height:20px}.word-item-translation{color:var(--primary-ink);font-weight:700}.word-item-slot{flex-shrink:0;justify-content:center;width:28px;display:flex}.word-item-play-example{border:1px solid var(--border);border-radius:var(--radius-pill);background:var(--surface);width:26px;height:26px;color:var(--primary-ink);place-items:center;display:grid}.word-item-example{min-width:0;color:var(--text-2);flex:1;margin:0;padding-top:2px;font-size:.875rem;font-style:italic;line-height:20px}.word-item-footer{justify-content:space-between;align-items:center;gap:var(--space-2);padding:6px 0 0 var(--space-1);border-top:1px solid var(--p4-divider);display:flex}.word-item-info{align-items:center;gap:var(--space-2);min-width:0;min-height:var(--touch-target);flex:1;display:flex}.word-item-status{padding:3px var(--space-2);border-radius:var(--radius-pill);color:#0f172a;font-size:.6875rem;font-weight:700}.word-item-status--learning{background:var(--secondary)}.word-item-status--review{background:var(--accent)}.word-item-status--mastered{background:var(--primary);color:#fff}.word-item-source{min-width:0;color:var(--text-2);white-space:nowrap;text-overflow:ellipsis;flex:1;font-size:.75rem;overflow:hidden}.word-item-add{align-items:center;gap:var(--space-1);border-radius:var(--radius-pill);background:var(--background);min-height:32px;color:var(--primary-ink);font:inherit;white-space:nowrap;cursor:pointer;border:0;padding:0 10px;font-size:.75rem;font-weight:700;display:inline-flex}.word-item-add:after{content:"";position:absolute;inset:-6px -2px}.word-item-add:hover{background:var(--primary-light)}.word-item-more{width:var(--touch-target);height:var(--touch-target);border-radius:var(--radius-pill);color:var(--text-2);background:0 0;border:0;place-items:center;display:grid}.word-item-more:hover{background:var(--surface)}.equalizer{align-items:flex-end;gap:2px;height:12px;display:flex}.equalizer span{transform-origin:bottom;background:currentColor;border-radius:1px;width:3px;height:100%;animation:.9s ease-in-out infinite equalize}.equalizer span:nth-child(2){animation-delay:-.3s}.equalizer span:nth-child(3){animation-delay:-.6s}@keyframes equalize{0%,to{transform:scaleY(.35)}50%{transform:scaleY(1)}}.tab-bar{z-index:10;background:var(--surface);border-top:1px solid var(--border-light);padding:var(--space-2) var(--space-2) max(var(--space-3), env(safe-area-inset-bottom));position:sticky;bottom:0}.tab-bar-list{grid-auto-columns:1fr;grid-auto-flow:column;align-items:end;margin:0;padding:0;list-style:none;display:grid}.tab-bar-item{justify-content:center;display:flex}.tab-bar-link{min-width:var(--touch-target);min-height:var(--touch-target);padding:2px var(--space-1);border-radius:var(--radius-lg);color:var(--text-2);flex-direction:column;align-items:center;gap:2px;font-size:.75rem;font-weight:500;text-decoration:none;display:flex}.tab-bar-icon{padding:6px var(--space-3);border-radius:var(--radius-lg);transition:background-color var(--ease);place-items:center;display:grid}.tab-bar-link--active{color:var(--primary-ink);font-weight:700}.tab-bar-link--active .tab-bar-icon{background:var(--primary-light)}.tab-bar-create{width:56px;height:56px;margin-top:calc(var(--space-6) * -1);display:block;position:relative}.tab-bar-create-button{border-radius:var(--radius-xl);background:var(--primary);box-shadow:var(--shadow-primary);transition:background-color var(--ease), transform .12s ease;place-items:center;display:grid;position:absolute;inset:0}.tab-bar-link:hover .tab-bar-create-button,.tab-bar-link--active .tab-bar-create-button{background:var(--primary-dark)}.tab-bar-link:active .tab-bar-create-button{transform:scale(.96)}.tab-bar-plus{background:#fff;border-radius:3px;width:24px;height:5px;position:absolute}.tab-bar-plus--vertical{width:5px;height:24px}.tab-bar-flick{border-radius:3px;width:12px;height:5px;position:absolute}.tab-bar-flick--yellow{background:var(--accent);top:-10px;left:-3px;transform:rotate(-50deg)}.tab-bar-flick--pink{background:var(--secondary);top:50px;right:-3px;transform:rotate(-55deg)}.sidebar{gap:var(--space-4);width:240px;height:100%;padding:var(--space-6) var(--space-4);border-right:1px solid var(--border-light);background:var(--surface);flex-direction:column;display:flex}.sidebar-header{padding:0 var(--space-2)}.sidebar-create{justify-content:center;align-items:center;gap:var(--space-2);min-height:48px;margin:var(--space-2) 0;border-radius:var(--radius-pill);background:var(--primary);color:#fff;box-shadow:var(--shadow-primary);transition:background-color var(--ease);font-weight:800;text-decoration:none;display:flex;position:relative}.sidebar-create:hover,.sidebar-create--active{background:var(--primary-dark)}.sidebar-flick--yellow{top:-8px;left:14px}.sidebar-flick--pink{top:auto;bottom:-6px;right:14px}.sidebar-list{gap:var(--space-1);flex-direction:column;margin:0;padding:0;list-style:none;display:flex}.sidebar-link{align-items:center;gap:var(--space-3);min-height:var(--touch-target);padding:0 var(--space-3);border-radius:var(--radius-md);color:var(--text-2);transition:background-color var(--ease), color var(--ease);font-size:.9375rem;font-weight:600;text-decoration:none;display:flex}.sidebar-link:hover{background:var(--surface-alt);color:var(--text)}.sidebar-link--active,.sidebar-link--active:hover{background:var(--primary-light);color:var(--primary-ink);font-weight:700}.sidebar-footer{margin-top:auto}.empty-state .state-icon{background:var(--primary-light);color:var(--primary-ink);font-size:1.5rem}.empty-state .state-title{color:var(--text)}.skeleton{background:linear-gradient(90deg, var(--surface-alt) 25%, var(--border-light) 37%, var(--surface-alt) 63%);background-size:400% 100%;animation:1.4s infinite skeleton-shimmer;display:block}.skeleton--text{border-radius:var(--radius-xs);width:100%;height:.875em}.skeleton--rect{border-radius:var(--radius-lg);width:100%;height:64px}.skeleton--circle{border-radius:var(--radius-pill);width:40px;height:40px}@keyframes skeleton-shimmer{0%{background-position:100%}to{background-position:0}}@media (prefers-reduced-motion:reduce){.sheet[open] .sheet-panel,.alert-dialog[open] .alert-dialog-panel,.skeleton,.equalizer span{animation:none}.switch,.switch:before{transition:none}}
.pwa-root{--font:var(--font-figtree), system-ui, -apple-system, sans-serif;--font-hand:var(--font-kalam), "Comic Sans MS", cursive;--tabbar-height:80px;--sidebar-width:248px;--page-max:960px}html:has(.pwa-root){--font:var(--font-figtree), system-ui, -apple-system, sans-serif;--font-hand:var(--font-kalam), "Comic Sans MS", cursive;--tabbar-height:80px;--sidebar-width:248px;--page-max:960px}body:has(.pwa-root){font-family:var(--font);background:var(--surface);color:var(--text);font-size:1rem;line-height:1.5}.pwa-root{min-height:100dvh}.pwa-splash{background:var(--surface);place-items:center;min-height:100dvh;display:grid}.pwa-splash img{animation:1.4s ease-in-out infinite pwa-pulse}@keyframes pwa-pulse{50%{opacity:.55}}@media (prefers-reduced-motion:reduce){.pwa-splash img{animation:none}}.pwa-skip{left:var(--space-4);z-index:100;padding:var(--space-2) var(--space-4);border-radius:var(--radius-pill);background:var(--primary);color:var(--text-on-primary,#fff);position:absolute;top:-48px}.pwa-skip:focus{top:var(--space-4)}.pwa-shell{grid-template-columns:1fr;min-height:100dvh;display:grid}.pwa-sidebar{display:none}.pwa-main{min-width:0;padding:var(--space-4) var(--space-4) calc(var(--tabbar-height) + var(--space-16) + env(safe-area-inset-bottom));padding-top:calc(var(--space-4) + env(safe-area-inset-top))}.pwa-bottom{z-index:20;gap:var(--space-2);pointer-events:none;display:grid;position:fixed;inset:auto 0 0}.pwa-bottom>*{pointer-events:auto}.pwa-tabbar{padding-bottom:env(safe-area-inset-bottom);background:var(--surface)}.pwa-fullscreen{min-height:100dvh;padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom)}@media (min-width:1024px){.pwa-shell{grid-template-columns:var(--sidebar-width) 1fr}.pwa-sidebar{border-right:1px solid var(--divider);height:100dvh;display:block;position:sticky;top:0}.pwa-main{padding:var(--space-8) var(--space-10) calc(var(--space-16) + var(--space-10))}.pwa-bottom{inset:auto var(--space-6) var(--space-6) calc(var(--sidebar-width) + var(--space-6))}.pwa-tabbar{display:none}}.pwa-brand{align-items:center;gap:var(--space-2);font-size:1.125rem;font-weight:700;display:inline-flex}.pwa-brand img{border-radius:var(--radius-sm)}.pwa-page{width:100%;max-width:var(--page-max);gap:var(--space-6);margin:0 auto;display:grid}.pwa-page--narrow{max-width:640px}.pwa-page-header{justify-content:space-between;align-items:center;gap:var(--space-3);display:flex}.pwa-page-title{letter-spacing:-.01em;margin:0;font-size:clamp(1.5rem,1.2rem + 1.2vw,2rem);font-weight:700}.pwa-page-subtitle{color:var(--text-2);margin:0}.pwa-section{gap:var(--space-3);display:grid}.pwa-section-title{margin:0;font-size:1.0625rem;font-weight:700}.pwa-card{border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--surface);padding:var(--space-4)}.pwa-grid{gap:var(--space-3);grid-template-columns:repeat(auto-fill,minmax(min(100%,280px),1fr));display:grid}.pwa-row{align-items:center;gap:var(--space-3);display:flex}.pwa-stack{gap:var(--space-3);display:grid}.pwa-muted{color:var(--text-2)}.pwa-back{align-items:center;gap:var(--space-1);min-height:44px;color:var(--text-2);font-weight:600;text-decoration:none;display:inline-flex}.pwa-back:hover{color:var(--text)}.pwa-icon-button{border-radius:var(--radius-pill);width:44px;height:44px;color:var(--text-2);background:0 0;border:0;place-items:center;display:inline-grid}.pwa-icon-button:hover{background:var(--surface-alt);color:var(--text)}.pwa-search{width:100%;min-height:44px;padding:var(--space-2) var(--space-4);border:1px solid var(--border);border-radius:var(--radius-pill);background:var(--surface-alt);font:inherit}.pwa-search:focus-visible{box-shadow:var(--focus-ring);border-color:var(--primary);outline:none}.pwa-install{max-width:var(--page-max);margin:0 auto var(--space-4);align-items:center;gap:var(--space-3);padding:var(--space-3);border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--primary-light);display:flex}.pwa-install--sticky{top:calc(var(--space-2) + env(safe-area-inset-top));z-index:20;box-shadow:var(--shadow-md);position:sticky}.pwa-install img{border-radius:var(--radius-sm);flex:none}.pwa-install-text{flex:1;margin:0;font-size:.9375rem}