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.route-marker{background:var(--ink);border-color:var(--ink);color:var(--bg)}.route-body{display:flex;flex-direction:column;gap:14px;padding-top:6px;min-width:0}.route-title{display:flex;align-items:baseline;gap:10px;flex-wrap:wrap}.route-title h2{font-size:1.75rem}.can-do{margin:0;padding-left:1.1em;color:var(--muted);font-size:.95rem}.can-do li{margin:2px 0}details.can-do-box summary{cursor:pointer;color:var(--sky);font-weight:500;font-size:.95rem}details.can-do-box[open] summary{margin-bottom:6px}.unit{background:var(--surface);border-radius:var(--r-lg);box-shadow:var(--shadow);padding:16px 18px}.unit-head{display:flex;flex-direction:column;gap:2px;margin-bottom:10px}.unit-head h3{font-size:1.2rem}.stops{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}.stop{display:grid;grid-template-columns:18px 1fr auto;gap:12px;align-items:center;padding:9px 8px;margin:0 -8px;border-radius:var(--r-sm);text-decoration:none;color:inherit}a.stop:hover{background:var(--surface-2)}.stop-dot{width:14px;height:14px;border-radius:50%;border:2px solid var(--ink);justify-self:center}.stop.done .stop-dot{background:var(--go);border-color:var(--go)}.stop.next .stop-dot{background:var(--signal);border-color:var(--signal);box-shadow:0 0 0 4px var(--signal-soft)}.stop.planned{color:var(--muted)}.stop.planned .stop-dot{border-style:dashed;border-color:var(--line)}.stop-title{font-weight:500}.stop-sub{font-size:.85rem;color:var(--muted)}.stop-meta{font-size:.8rem;color:var(--muted);white-space:nowrap}.stop.done .stop-meta{color:var(--go);font-weight:600}.lesson-top{position:sticky;top:0;z-index:5;background:var(--bg);padding:8px 0 14px;display:flex;align-items:center;gap:14px}.lesson-top .bar{flex:1;height:10px}.lesson-crumb{color:var(--muted);font-size:.9rem}.section-label{font-family:var(--font-sign);font-weight:600;font-size:1rem;color:var(--muted)}.vocab-list{display:flex;flex-direction:column}.vocab-item{display:grid;grid-template-columns:auto 1fr;gap:4px 14px;padding:14px 0;border-bottom:1px solid var(--line);align-items:start}.vocab-item:last-child{border-bottom:0}.vocab-en{font-weight:600;font-size:1.15rem}.vocab-pt{color:var(--muted)}.vocab-ex{font-style:italic;font-size:.95rem;color:var(--muted)}.grammar-text p+p,.grammar-text p+ul,.grammar-text ul+p{margin-top:12px}.grammar-text ul{margin:6px 0 0;padding-left:1.2em}.grammar-text li{margin:3px 0}.examples{display:flex;flex-direction:column;gap:10px;margin-top:4px}.example{display:grid;grid-template-columns:auto 1fr;gap:2px 12px;align-items:center}.example .en{font-weight:500}.example .pt{grid-column:2;color:var(--muted);font-size:.92rem}.tip{border-left:4px solid var(--signal);background:var(--signal-soft);padding:14px 16px;border-radius:0 var(--r-md) var(--r-md) 0}.tip strong{font-family:var(--font-sign);font-size:1.05rem;font-weight:600;display:block;margin-bottom:2px}.dialogue{display:flex;flex-direction:column;gap:12px}.line{display:grid;grid-template-columns:92px 1fr auto;gap:12px;align-items:start}.line-speaker{font-family:var(--font-sign);font-weight:600;color:var(--muted);padding-top:2px;overflow:hidden;text-overflow:ellipsis}.line-pt{color:var(--muted);font-size:.92rem}.line.hide-pt .line-pt{filter:blur(5px);-webkit-user-select:none;user-select:none;cursor:pointer}@media(max-width:520px){.line{grid-template-columns:1fr auto}.line-speaker{grid-column:1 / -1;padding:0}}.ex-prompt{font-size:1.35rem;font-weight:500;line-height:1.35}.ex-kind{color:var(--muted);font-size:.9rem}.options{display:flex;flex-direction:column;gap:10px}.option{text-align:left;padding:14px 16px;border-radius:var(--r-md);border:2px solid var(--line);background:var(--surface);cursor:pointer;font-size:1.05rem}.option:hover:not(:disabled){border-color:var(--muted)}.option.selected{border-color:var(--ink);background:var(--surface-2)}.option.right{border-color:var(--go);background:var(--go-soft)}.option.wrong{border-color:var(--stop);background:var(--stop-soft)}.option:disabled{cursor:default}.text-input{width:100%;font:inherit;font-size:1.15rem;padding:14px 16px;border-radius:var(--r-md);border:2px solid var(--line);background:var(--surface);color:var(--ink)}.text-input:focus{outline:none;border-color:var(--ink)}.text-input.right{border-color:var(--go)}.text-input.wrong{border-color:var(--stop)}.fill-sentence{font-size:1.35rem;font-weight:500}.fill-sentence .gap{display:inline-block;min-width:5ch;border-bottom:3px solid var(--signal);margin:0 4px;text-align:center;color:var(--muted)}.chips{display:flex;flex-wrap:wrap;gap:8px;min-height:52px}.chip{padding:8px 14px;border-radius:var(--r-sm);border:1px solid var(--line);background:var(--surface);font-size:1.05rem;cursor:pointer;box-shadow:0 2px 0 var(--line)}.chip:hover:not(:disabled){transform:translateY(-1px)}.chip:disabled{opacity:.25;cursor:default;box-shadow:none}.answer-line{border-bottom:2px solid var(--line);padding-bottom:10px}.speak-target{font-size:1.5rem;font-weight:500;line-height:1.35}.mic{width:84px;height:84px;border-radius:50%;border:0;cursor:pointer;display:grid;place-items:center;background:var(--ink);color:var(--bg)}.mic svg{width:34px;height:34px}.mic.on{background:var(--stop);color:#fff;animation:pulse 1.2s infinite}@keyframes pulse{50%{box-shadow:0 0 0 12px color-mix(in srgb,var(--stop) 20%,transparent)}}.feedback{position:fixed;left:var(--side);right:0;bottom:0;z-index:8;padding:18px clamp(16px,4vw,56px) 22px;border-top:1px solid var(--line);background:var(--surface);animation:rise .16s ease-out}@keyframes rise{0%{transform:translateY(100%)}}.feedback-spacer{height:150px}.feedback-inner{max-width:780px;margin:0 auto;display:flex;align-items:center;gap:16px;flex-wrap:wrap;justify-content:space-between}.feedback.right{background:var(--go-soft);border-color:transparent}.feedback.wrong{background:var(--stop-soft);border-color:transparent}.feedback-title{font-family:var(--font-sign);font-weight:700;font-size:1.45rem}.feedback.right .feedback-title{color:var(--go)}.feedback.wrong .feedback-title{color:var(--stop)}.feedback-text{max-width:56ch}@media(max-width:820px){.feedback{left:0;bottom:calc(62px + env(safe-area-inset-bottom))}}.result-score{font-family:var(--font-sign);font-weight:700;font-size:6rem;line-height:.9}.flashcard{min-height:300px;background:var(--surface);border-radius:var(--r-lg);box-shadow:var(--shadow);padding:32px 24px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center}.flashcard-front{font-family:var(--font-sign);font-weight:600;font-size:2.6rem;line-height:1.05}.flashcard-back{font-size:1.3rem}.flashcard hr{width:60px;border:0;border-top:2px solid var(--line);margin:4px 0}.grades{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.grade{display:flex;flex-direction:column;gap:0;min-height:60px}.grade small{font-weight:400;color:var(--muted);font-size:.8rem}.grade.again{border-color:var(--stop)}@media(max-width:520px){.grades{grid-template-columns:1fr 1fr}}.level-bars{display:flex;flex-direction:column;gap:14px}.level-bar-row{display:grid;grid-template-columns:48px 1fr auto;gap:14px;align-items:center}.level-bar-row .level-code{font-size:1.6rem}.field{display:flex;flex-direction:column;gap:6px}.field label{font-weight:600}.field select,.field input[type=number]{font:inherit;padding:10px 12px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--surface);color:var(--ink);max-width:260px}.field input[type=range]{max-width:260px;accent-color:var(--signal)}.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}@media(max-width:620px){.settings-grid{grid-template-columns:1fr}}@media(max-width:520px){.notice.row{flex-direction:column;align-items:stretch}}.auth{min-height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:22px;padding:32px max(16px,env(safe-area-inset-right)) 32px max(16px,env(safe-area-inset-left))}.auth-brand{display:flex;align-items:center;gap:10px}.auth-route{display:flex;align-items:center;font-family:var(--font-sign);font-weight:700;font-size:.95rem;color:var(--muted)}.auth-route span{padding:2px 8px;border:2px solid var(--line);border-radius:6px;background:var(--surface)}.auth-route span+span{margin-left:18px;position:relative}.auth-route span+span:before{content:"";position:absolute;right:calc(100% + 3px);top:50%;width:14px;height:3px;margin-top:-1.5px;background:repeating-linear-gradient(to right,var(--line) 0 4px,transparent 4px 7px)}.auth-route span.on{background:var(--signal);border-color:var(--signal);color:var(--signal-ink)}.auth-card{width:100%;max-width:420px;background:var(--surface);border-radius:var(--r-lg);box-shadow:var(--shadow);padding:28px;display:flex;flex-direction:column;gap:22px}.auth-card h1{font-size:2rem}.auth-switch{text-align:center;color:var(--muted)}.link-btn{background:none;border:0;padding:0;color:var(--sky);font-weight:600;cursor:pointer;font-size:inherit}.link-btn:hover{text-decoration:underline}.password-wrap{position:relative}.password-wrap .text-input{padding-right:92px}.password-toggle{position:absolute;right:14px;top:50%;transform:translateY(-50%);font-size:.85rem}.notice.ok{background:var(--go-soft);border-color:transparent}.field .text-input{font-size:1.05rem;padding:12px 14px}.account-form{max-width:420px;padding-top:4px}@media(max-width:520px){.auth-card{padding:22px 18px}.auth-route span+span{margin-left:12px}.auth-route span+span:before{width:8px}}