:root{--bg:#f6f5f2;--card-bg:#fff;--text:#232323;--muted:#6b6b6b;--primary:#2f6f4f;--primary-dark:#21503a;--accent:#d98a3d;--border:#e4e1da;--danger:#c14646;--radius:14px}*{box-sizing:border-box}html,body,#root{height:100%}body{background:var(--bg);color:var(--text);-webkit-tap-highlight-color:transparent;margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}button{font-family:inherit}.screen{max-width:520px;min-height:100%;margin:0 auto;padding:16px 16px 48px}.center-screen{text-align:center;justify-content:center;align-items:center;display:flex}.card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:14px;padding:18px}.card-title{margin-bottom:10px;font-weight:600}.login-card{text-align:center;flex-direction:column;gap:12px;width:100%;max-width:340px;display:flex}.login-emoji{font-size:42px}.login-card h1{margin:0;font-size:22px}.muted{color:var(--muted)}.small{font-size:13px}.error-text{color:var(--danger);font-size:14px}input[type=password],input[type=text]{border:1px solid var(--border);border-radius:10px;width:100%;padding:12px 14px;font-size:16px}.btn{cursor:pointer;background:var(--border);color:var(--text);border:none;border-radius:10px;padding:12px 16px;font-size:15px;font-weight:600}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff}.btn-primary:active:not(:disabled){background:var(--primary-dark)}.btn-ghost{border:1px solid var(--border);background:0 0}.btn-sm{padding:8px 12px;font-size:13px}.btn-block{width:100%;display:block}.btn-row{gap:8px;margin-top:10px;display:flex}.btn-row.nav-row .btn{flex:1}.topbar{justify-content:space-between;align-items:center;padding:6px 0 16px;display:flex}.topbar-title{font-size:20px;font-weight:700}.banner-warning{color:#7a5218;border-radius:var(--radius);background:#fdf1e2;border:1px solid #f0c98a;margin-bottom:14px;padding:12px 14px;font-size:13px}.checklist{flex-direction:column;gap:6px;margin:0 0 14px;padding:0;font-size:14px;list-style:none;display:flex}.checklist .done{color:var(--primary)}.unit-list{flex-direction:column;gap:10px;display:flex}.unit-row{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);text-align:left;cursor:pointer;align-items:center;gap:12px;padding:14px;display:flex}.unit-row.locked{opacity:.5;cursor:not-allowed}.unit-row-icon{text-align:center;width:36px;font-size:26px}.unit-row-body{flex:1;min-width:0}.unit-row-title{margin-bottom:6px;font-weight:600}.unit-row-badge{color:var(--primary);font-size:18px;font-weight:700}.progress-track{background:var(--border);border-radius:4px;height:6px;overflow:hidden}.progress-fill{background:var(--primary);height:100%;transition:width .2s}.unit-header{align-items:center;gap:14px;margin-bottom:18px;display:flex}.unit-header h2{margin:0 0 4px;font-size:19px}.unit-header-icon{font-size:34px}.mode-grid{grid-template-columns:1fr;gap:10px;display:grid}.mode-card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);text-align:left;cursor:pointer;align-items:center;gap:14px;padding:20px 16px;font-size:16px;font-weight:600;display:flex;position:relative}.mode-card-emoji{font-size:26px}.mode-card-check{color:var(--primary);font-weight:700;position:absolute;right:16px}.mode-panel{flex-direction:column;gap:14px;display:flex}.mode-progress{color:var(--muted);text-align:center;font-size:13px}.dialogue-card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);text-align:center;flex-direction:column;align-items:center;gap:12px;padding:20px;display:flex}.speaker-tag{text-transform:uppercase;letter-spacing:.05em;color:var(--muted);font-size:11px}.play-circle{background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:50%;width:64px;height:64px;font-size:24px}.play-circle:disabled{opacity:.6}.reveal-text{flex-direction:column;gap:4px;display:flex}.en-text{font-size:17px;font-weight:600}.tr-text{color:var(--muted);font-size:14px}.quiz-options{flex-direction:column;gap:8px;width:100%;margin-top:8px;display:flex}.quiz-option{border:1px solid var(--border);cursor:pointer;text-align:left;background:#fff;border-radius:10px;padding:12px;font-size:14px}.quiz-option.correct{border-color:var(--primary);background:#e9f3ed}.quiz-option.wrong{border-color:var(--danger);background:#fbeaea}.center-text{text-align:center;flex-direction:column;align-items:center;gap:8px;display:flex}.big-emoji{font-size:46px}.record-row{justify-content:center;display:flex}.btn-record{background:var(--accent);color:#fff;border-radius:999px;padding:14px 26px;font-size:15px}.btn-record.recording{background:var(--danger)}.result-box{border-top:1px solid var(--border);flex-direction:column;gap:6px;width:100%;margin-top:4px;padding-top:12px;display:flex}.score-row{font-size:20px}.feedback-tr{background:#f1f6f3;border-radius:10px;padding:10px 12px;font-size:14px}.rating-row{grid-template-columns:repeat(4,1fr);gap:8px;display:grid}.rating-btn{color:#fff;padding:12px 4px;font-size:13px}.rating-btn.again{background:#c14646}.rating-btn.hard{background:#d98a3d}.rating-btn.good{background:#3f7fbf}.rating-btn.easy{background:#2f6f4f}.roleplay-header{text-align:center}.chat-log{flex-direction:column;gap:10px;max-height:50vh;padding:4px 2px;display:flex;overflow-y:auto}.chat-bubble{border-radius:14px;max-width:85%;padding:10px 14px}.chat-bubble.character{background:var(--card-bg);border:1px solid var(--border);align-self:flex-start}.chat-bubble.user{background:var(--primary);color:#fff;align-self:flex-end}.chat-bubble.user .en-text{color:#fff}.chat-bubble.user .tr-text{color:#ffffffd9}.design-toggle{gap:8px;display:flex}.design-tab{border:1px solid var(--border);background:var(--card-bg);color:var(--muted);cursor:pointer;border-radius:10px;flex:1;padding:10px 8px;font-size:13px;font-weight:600}.design-tab.active{border-color:var(--primary);color:var(--primary);background:#2f6f4f14}.transcript-log{max-height:62vh}.chat-log.transcript-log .chat-bubble{text-align:left;border:1px solid var(--border);width:100%;font:inherit;cursor:pointer;flex-direction:column;gap:4px;display:flex}.chat-log.transcript-log .chat-bubble.character{border-bottom-left-radius:4px;align-self:flex-start}.chat-log.transcript-log .chat-bubble.user{border-bottom-right-radius:4px;align-self:flex-end}.chat-log.transcript-log .chat-bubble.is-playing{border-color:var(--primary);box-shadow:0 0 0 2px #2f6f4f40}.chat-log.transcript-log .chat-bubble:disabled{opacity:.5;cursor:default}@media (width>=480px){.mode-grid{grid-template-columns:repeat(3,1fr)}.mode-card{text-align:center;flex-direction:column}}