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var(--border);font-size:13px}.app-user{color:var(--text-secondary);margin-right:auto}.app-admin-link{color:var(--accent);text-decoration:none;font-weight:600}.app-logout-btn{background:none;border:1px solid var(--border);border-radius:6px;padding:4px 12px;cursor:pointer;color:var(--text-secondary);font-size:12px}.login-container{display:flex;align-items:center;justify-content:center;height:100vh;background:var(--bg)}.login-card{background:var(--card-bg);border-radius:var(--radius);box-shadow:var(--shadow);padding:40px 32px;width:340px;text-align:center}.login-title{font-size:28px;font-weight:700;color:var(--accent);margin-bottom:4px}.login-subtitle{font-size:14px;color:var(--text-secondary);margin-bottom:24px}.login-tabs{display:flex;gap:0;margin-bottom:20px;border-bottom:2px solid var(--border)}.login-tab{flex:1;padding:10px;border:none;background:none;cursor:pointer;font-size:14px;color:var(--text-secondary);border-bottom:2px solid transparent;margin-bottom:-2px;transition:all .2s}.login-tab.active{color:var(--accent);border-bottom-color:var(--accent);font-weight:600}.login-form{display:flex;flex-direction:column;gap:12px}.login-input{padding:12px;border:1px solid var(--border);border-radius:8px;font-size:14px;font-family:var(--font);outline:none;transition:border-color .2s}.login-input:focus{border-color:var(--accent)}.login-error{color:var(--accent);font-size:13px;text-align:left}.login-submit{padding:12px;border:none;border-radius:8px;background:var(--accent);color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:opacity .2s}.login-submit:disabled{opacity:.6;cursor:not-allowed}.admin-overview{display:flex;gap:16px;margin-bottom:24px}.admin-stat{flex:1;background:var(--card-bg);border-radius:var(--radius);padding:16px;text-align:center;box-shadow:var(--shadow)}.admin-stat-value{display:block;font-size:28px;font-weight:700;color:var(--accent)}.admin-stat-label{display:block;font-size:12px;color:var(--text-secondary);margin-top:4px}.admin-users{display:flex;flex-direction:column;gap:8px;margin-bottom:24px}.admin-user-row{display:flex;align-items:center;gap:16px;padding:12px 16px;background:var(--card-bg);border-radius:8px;box-shadow:var(--shadow);cursor:pointer;transition:transform .1s}.admin-user-row:hover{transform:translateY(-1px)}.admin-user-name{font-weight:600;flex:1}.admin-user-role{font-size:12px;color:var(--text-secondary);padding:2px 8px;background:var(--accent-light);border-radius:4px}.admin-user-date{font-size:12px;color:var(--text-secondary)}.admin-user-detail{background:var(--card-bg);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);margin-top:16px}.admin-detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:12px 0;font-size:14px}.admin-close-btn{padding:8px 16px;border:1px solid var(--border);border-radius:6px;background:none;cursor:pointer;margin-top:8px}.app-course-switch{background:var(--accent-light);border:1px solid var(--accent);border-radius:8px;padding:4px 12px;font-size:14px;cursor:pointer;color:var(--accent);font-weight:600;transition:background .2s}.app-course-switch:hover{background:var(--accent);color:#fff}.install-banner{display:flex;align-items:center;gap:12px;padding:10px 16px;background:var(--accent);color:#fff;font-size:13px;flex-shrink:0}.install-banner-text{flex:1}.install-banner-btn{padding:5px 16px;background:#fff;color:var(--accent);border:none;border-radius:6px;font-size:13px;font-weight:600;cursor:pointer;font-family:var(--font)}.install-banner-close{background:none;border:none;color:#ffffffb3;font-size:20px;cursor:pointer;padding:0 4px;line-height:1}.install-banner-close:hover{color:#fff}.inapp-guard-overlay{position:fixed;inset:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:9999;padding:24px}.inapp-guard-card{background:var(--card-bg);border-radius:var(--radius);padding:32px 24px;text-align:center;max-width:340px;box-shadow:0 8px 32px #0000004d}.inapp-guard-icon{font-size:48px;margin-bottom:12px}.inapp-guard-title{font-size:20px;font-weight:700;margin-bottom:12px}.inapp-guard-desc{font-size:14px;color:var(--text-secondary);line-height:1.6;margin-bottom:20px}.inapp-guard-btn{padding:10px 24px;background:var(--accent);color:#fff;border:none;border-radius:8px;cursor:pointer;font-size:14px;font-weight:500;font-family:var(--font)}.pronunciation-container{display:flex;flex-direction:column;align-items:center;gap:16px;width:320px;background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px 20px}.pronunciation-target{display:flex;flex-direction:column;align-items:center;gap:4px}.pronunciation-text{font-size:28px;font-weight:700}.pronunciation-reading{font-size:14px;color:var(--text-secondary)}.pronunciation-play{font-size:18px;margin-top:4px}.pronunciation-record-btn{padding:12px 28px;border:2px solid var(--border);border-radius:24px;background:var(--card-bg);cursor:pointer;font-size:15px;font-weight:500;font-family:var(--font);transition:all .15s}.pronunciation-record-btn:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}.pronunciation-record-btn.recording{border-color:var(--accent);background:#fdf0ef;color:var(--accent);animation:micPulse 1.2s infinite}.pronunciation-record-btn:disabled{opacity:.5;cursor:not-allowed}.pronunciation-status{font-size:13px;color:var(--text-secondary)}.pronunciation-result{display:flex;flex-direction:column;align-items:center;gap:8px;width:100%}.pronunciation-user-text{font-size:14px;color:var(--text-secondary)}.pronunciation-score{font-size:20px;font-weight:700}.pronunciation-score.good{color:#27ae60}.pronunciation-score.fair{color:#f39c12}.pronunciation-score.poor{color:#e74c3c}.pronunciation-diff{font-size:20px;letter-spacing:2px}.diff-match{color:#27ae60}.diff-miss{color:#e74c3c;text-decoration:underline}.pronunciation-actions{display:flex;gap:12px;margin-top:8px}.pronunciation-btn{padding:10px 20px;border:1px solid var(--border);border-radius:8px;background:var(--card-bg);cursor:pointer;font-size:14px;font-family:var(--font);transition:all .15s}.pronunciation-btn:hover{background:var(--bg)}.pronunciation-btn.primary{background:var(--accent);color:#fff;border-color:var(--accent)}.pronunciation-btn.primary:hover{opacity:.9}.pronunciation-btn.secondary{color:var(--text-secondary)}.pronunciation-unsupported{font-size:14px;color:var(--text-secondary);text-align:center}.course-select-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;padding:24px}.course-select-title{font-size:32px;font-weight:700;margin-bottom:8px}.course-select-subtitle{font-size:16px;color:var(--text-secondary);margin-bottom:40px}.course-select-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px;max-width:600px;width:100%}.course-card{display:flex;flex-direction:column;align-items:center;padding:32px 24px;cursor:pointer;transition:transform .2s,box-shadow .2s;text-align:center}.course-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px #0000001f}.course-card-flag{font-size:48px;margin-bottom:12px}.course-card-name{font-size:24px;font-weight:700;margin-bottom:8px}.course-card-desc{font-size:14px;color:var(--text-secondary);line-height:1.5}