:root{--primary: #6C5CE7;--primary-light: #A29BFE;--bg: #0f0f23;--bg-card: #1a1a2e;--bg-input: #16213e;--text: #e0e0e0;--text-muted: #888;--border: #2a2a4a;--accent: #00cec9;--danger: #e74c3c;--success: #00b894;--radius: 12px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text);line-height:1.6}.app{max-width:1000px;margin:0 auto;padding:0 16px 80px}.home-page,.history-page,.settings-page{max-width:720px;margin:0 auto}.navbar{display:flex;align-items:center;justify-content:space-between;padding:16px 0;border-bottom:1px solid var(--border);margin-bottom:24px}.nav-logo{font-size:20px;font-weight:700;color:var(--primary-light);text-decoration:none}.nav-links{display:flex;align-items:center;gap:16px;font-size:14px}.nav-links a{color:var(--text-muted);text-decoration:none;transition:color .2s}.nav-links a:hover,.nav-links a.active{color:var(--text)}.btn-signin{background:var(--primary);color:#fff;border:none;padding:6px 16px;border-radius:8px;cursor:pointer;font-size:14px}.hero{text-align:center;margin:32px 0 24px}.hero h1{font-size:28px;font-weight:700;margin-bottom:8px}.subtitle{color:var(--text-muted);font-size:16px}.tabs{display:flex;gap:0;margin-bottom:16px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border)}.tab{flex:1;padding:10px;text-align:center;background:transparent;border:none;color:var(--text-muted);cursor:pointer;font-size:14px;transition:all .2s}.tab.active{background:var(--primary);color:#fff}.input-section{margin-bottom:16px}.url-input-row{display:flex;gap:8px}.url-input{flex:1;padding:12px 16px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);font-size:15px;outline:none}.url-input:focus{border-color:var(--primary)}.btn-primary{background:var(--primary);color:#fff;border:none;padding:12px 24px;border-radius:var(--radius);cursor:pointer;font-size:15px;font-weight:500;transition:opacity .2s}.btn-primary:hover{opacity:.9}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{background:transparent;color:var(--text);border:1px solid var(--border);padding:8px 16px;border-radius:8px;cursor:pointer;font-size:13px;transition:all .2s}.btn-secondary:hover{border-color:var(--primary);color:var(--primary)}.btn-danger{border-color:var(--danger)!important;color:var(--danger)!important}.drop-zone{border:2px dashed var(--border);border-radius:var(--radius);padding:32px;text-align:center;cursor:pointer;transition:border-color .2s}.drop-zone:hover,.drop-zone.has-file{border-color:var(--primary)}.drop-text p{color:var(--text-muted)}.drop-hint{font-size:12px;margin-top:8px}.file-info{display:flex;align-items:center;gap:12px;justify-content:center}.file-name{font-weight:500}.file-size{color:var(--text-muted);font-size:13px}.btn-clear{background:none;border:none;color:var(--primary);cursor:pointer;font-size:13px}.options-row{display:flex;gap:12px;margin-bottom:16px;flex-wrap:wrap}.url-input-full{width:100%;padding:16px 20px;font-size:16px}.actions-row{display:flex;align-items:center;gap:10px;margin-top:8px;flex-wrap:wrap}.actions-row-main{flex:1;min-width:180px;padding:14px 24px;font-size:15px}.btn-quiz-locked{opacity:.65;border-style:dashed;cursor:pointer}.btn-quiz-locked:hover{opacity:.9;border-color:var(--primary-light);color:var(--primary-light)}.option{flex:1;min-width:140px}.option label{display:block;font-size:12px;color:var(--text-muted);margin-bottom:4px}.option select{width:100%;padding:8px;background:var(--bg-input);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:13px}.loading-card{text-align:center;padding:32px;background:var(--bg-card);border-radius:var(--radius);margin:16px 0}.loading-spinner{width:32px;height:32px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite;margin:0 auto 12px}@keyframes spin{to{transform:rotate(360deg)}}.loading-step{color:var(--text-muted);font-size:14px}.progress-bar{position:relative;height:8px;background:var(--border);border-radius:4px;margin-top:12px;overflow:hidden}.progress-fill{height:100%;background:var(--primary);border-radius:4px;transition:width .3s}.progress-text{position:absolute;right:0;top:-20px;font-size:12px;color:var(--text-muted)}.summary-card{background:var(--bg-card);border-radius:var(--radius);padding:20px;margin:16px 0;border:1px solid var(--border)}.summary-header{display:flex;align-items:center;gap:12px;margin-bottom:16px;flex-wrap:wrap}.summary-header h2{font-size:18px;flex:1}.duration{font-size:13px;color:var(--text-muted);background:var(--bg-input);padding:2px 8px;border-radius:4px}.badge{font-size:11px;background:var(--primary);color:#fff;padding:2px 8px;border-radius:4px}.section{margin-bottom:16px}.section h3{font-size:14px;color:var(--primary-light);margin-bottom:8px}.key-points{list-style:none;padding:0}.key-points li{display:flex;gap:8px;margin-bottom:8px;font-size:14px}.timestamp-btn{background:var(--bg-input);border:1px solid var(--border);color:var(--accent);padding:2px 8px;border-radius:4px;cursor:pointer;font-size:12px;font-family:monospace;white-space:nowrap}.timestamp-btn:hover{background:var(--accent);color:var(--bg)}.summary-actions{display:flex;gap:8px;margin-top:16px;padding-top:16px;border-top:1px solid var(--border)}.summary-meta{display:flex;gap:16px;margin-top:12px;font-size:11px;color:var(--text-muted)}.error-card{background:#e74c3c26;border:1px solid var(--danger);border-radius:var(--radius);padding:16px;margin:16px 0;color:var(--danger)}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000}.modal-content{background:var(--bg-card);border-radius:var(--radius);padding:32px;max-width:420px;width:90%;position:relative;border:1px solid var(--border)}.modal-close{position:absolute;top:12px;right:16px;background:none;border:none;color:var(--text-muted);font-size:24px;cursor:pointer}.paywall-detail{margin-top:12px;font-size:13px;color:var(--text-muted);font-style:italic}.paywall-actions{margin-top:20px;display:flex;flex-direction:column;gap:8px}.paywall-actions button{width:100%}.history-page h1{margin-bottom:16px}.history-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.search-input{width:100%;padding:10px 16px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);font-size:14px;margin-bottom:16px;outline:none}.search-input:focus{border-color:var(--primary)}.history-item{margin-bottom:16px}.history-item-header{display:flex;gap:12px;align-items:center;margin-bottom:8px;font-size:12px;color:var(--text-muted)}.history-type{background:var(--bg-input);padding:2px 8px;border-radius:4px}.btn-delete{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:18px;margin-left:auto}.btn-delete:hover{color:var(--danger)}.history-item-source{font-size:12px;color:var(--text-muted);margin-bottom:8px;word-break:break-all}.history-source-link{color:var(--primary);text-decoration:none}.history-source-link:hover{text-decoration:underline}.history-source-file{font-style:italic}.empty-state{text-align:center;padding:48px;color:var(--text-muted)}.hint{font-size:13px;color:var(--text-muted);margin-top:4px}.settings-page h1{margin-bottom:24px}.settings-section{background:var(--bg-card);border-radius:var(--radius);padding:20px;margin-bottom:16px;border:1px solid var(--border)}.settings-section h2{font-size:16px;margin-bottom:12px}.setting-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.setting-row label{font-size:14px}.setting-row select{width:200px;padding:8px;background:var(--bg-input);border:1px solid var(--border);border-radius:8px;color:var(--text)}.settings-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.pricing-page{text-align:center;max-width:980px;margin:0 auto}.pricing-page h1{margin-bottom:16px}.pricing-cycle-toggle{display:inline-flex;gap:4px;padding:4px;background:var(--bg-card);border:1px solid var(--border);border-radius:999px;margin:0 auto 32px}.pricing-cycle-toggle button{background:transparent;color:var(--text-muted);border:none;padding:8px 20px;border-radius:999px;cursor:pointer;font-size:14px;font-weight:500;transition:all .2s;display:inline-flex;align-items:center;gap:6px}.pricing-cycle-toggle button:hover{color:var(--text)}.pricing-cycle-toggle button.active{background:var(--primary);color:#fff}.pricing-discount-badge{background:var(--success);color:#fff;font-size:10px;padding:2px 6px;border-radius:4px;font-weight:600}.pricing-cycle-toggle button.active .pricing-discount-badge{background:#ffffff40}.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:0 auto}.pricing-card{background:var(--bg-card);border-radius:var(--radius);padding:24px;border:1px solid var(--border);text-align:left;position:relative;display:flex;flex-direction:column}.pricing-card.featured{border-color:var(--primary)}.pricing-card.is-current{border-color:var(--accent)}.pricing-card-plus{border-color:var(--primary-light)}.pricing-badge{background:var(--primary);color:#fff;font-size:11px;padding:2px 10px;border-radius:4px;display:inline-block;margin-bottom:8px;align-self:flex-start}.pricing-card.is-current .pricing-badge{background:var(--accent);color:var(--bg)}.pricing-card h2{font-size:20px;margin-bottom:4px}.price{font-size:32px;font-weight:700;margin:8px 0 4px}.price span{font-size:14px;font-weight:400;color:var(--text-muted)}.price-period{font-size:12px;color:var(--text-muted);margin-bottom:16px;min-height:1.6em}.pricing-card ul{padding-left:20px;margin-bottom:20px;font-size:14px;color:var(--text-muted);flex:1}.pricing-card li{margin-bottom:6px}.pricing-card button{width:100%}.pricing-portal-hint{margin-top:24px;font-size:13px;color:var(--text-muted);font-style:italic}.account-button{position:fixed;bottom:16px;left:16px;display:inline-flex;align-items:center;gap:10px;background:var(--bg-card);border:1px solid var(--border);border-radius:999px;padding:6px 14px 6px 6px;color:var(--text);cursor:pointer;max-width:280px;transition:all .2s;box-shadow:0 2px 8px #00000040;z-index:50}.account-button:hover{border-color:var(--primary);transform:translateY(-1px)}.account-button-avatar{width:28px;height:28px;border-radius:50%;background:var(--primary);display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;overflow:hidden}.account-button-avatar img{width:100%;height:100%;object-fit:cover}.account-button-initials{color:#fff;font-size:12px;font-weight:600}.account-button-info{display:flex;flex-direction:column;align-items:flex-start;line-height:1.2;min-width:0}.account-button-email{font-size:12px;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:200px}.account-button-plan{font-size:10px;padding:1px 8px;border-radius:4px;font-weight:600;margin-top:2px;text-transform:uppercase;letter-spacing:.5px}.account-button-plan.plan-free{background:var(--border);color:var(--text-muted)}.account-button-plan.plan-plus{background:var(--primary-light);color:var(--bg)}.account-button-plan.plan-premium{background:var(--accent);color:var(--bg)}.account-button-inline{position:static;bottom:auto;left:auto;box-shadow:none;padding:6px 12px 6px 6px;flex-shrink:0}.account-button-plan-inline{margin-top:0;margin-left:2px}.account-modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000a6;display:flex;align-items:center;justify-content:center;z-index:100;padding:16px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.account-modal{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);width:100%;max-width:480px;max-height:90vh;overflow-y:auto;box-shadow:0 12px 40px #00000080}.account-modal-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--border)}.account-modal-header h2{font-size:18px;font-weight:600}.account-modal-close{background:transparent;border:none;color:var(--text-muted);font-size:24px;line-height:1;cursor:pointer;padding:4px 8px;border-radius:6px;transition:all .2s}.account-modal-close:hover{color:var(--text);background:var(--bg-input)}.account-modal-loading{padding:40px 24px;text-align:center;color:var(--text-muted)}.account-section{padding:16px 24px;border-bottom:1px solid var(--border)}.account-section:last-of-type{border-bottom:none}.account-section-title{font-size:11px;font-weight:600;color:var(--text-muted);letter-spacing:1px;margin-bottom:12px}.account-row{display:flex;justify-content:space-between;align-items:center;padding:8px 0;gap:12px}.account-row-meta{padding-top:4px}.account-row-label{font-size:13px;color:var(--text-muted);flex-shrink:0}.account-row-value{font-size:13px;color:var(--text);text-align:right;word-break:break-word}.account-row-email{font-family:ui-monospace,monospace;font-size:12px}.account-plan-badge{display:inline-flex;align-items:baseline;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.account-plan-badge.plan-free{background:var(--border);color:var(--text-muted)}.account-plan-badge.plan-plus{background:var(--primary-light);color:var(--bg)}.account-plan-badge.plan-premium{background:var(--accent);color:var(--bg)}.account-plan-cycle{font-size:10px;font-weight:400;opacity:.8;margin-left:4px}.account-reset-hint{font-size:12px;color:var(--text-muted);margin-bottom:16px;font-style:italic}.quota-row{padding:12px 0;border-top:1px solid var(--border)}.quota-row:first-of-type{border-top:none;padding-top:4px}.quota-row-head{display:flex;align-items:center;gap:10px;margin-bottom:6px;font-size:13px}.quota-icon{font-size:16px}.quota-label{color:var(--text);flex:1}.quota-count{color:var(--text-muted);font-variant-numeric:tabular-nums;font-size:12px}.quota-bar{width:100%;height:6px;background:var(--border);border-radius:999px;overflow:hidden}.quota-bar-fill{height:100%;background:linear-gradient(90deg,var(--primary),var(--primary-light));border-radius:999px;transition:width .3s}.quota-row-warn .quota-bar-fill{background:linear-gradient(90deg,var(--danger),#f39c12)}.quota-row-warn .quota-count{color:var(--danger)}.quota-row-foot{font-size:11px;color:var(--text-muted);margin-top:4px}.quota-row-locked .quota-label{color:var(--text-muted)}.quota-row-locked .quota-locked-text{font-size:11px;color:var(--primary-light);margin-left:auto}.quota-bar-fill-locked{background:var(--border)}.quota-upgrade-link{background:transparent;border:none;color:var(--primary-light);font-size:12px;cursor:pointer;padding:4px 0;margin-top:4px;text-align:left}.quota-upgrade-link:hover{color:var(--primary);text-decoration:underline}.account-modal-footer{padding:16px 24px 20px;display:flex;flex-direction:column;gap:8px}.account-modal-footer button{width:100%}.btn-quiz{white-space:nowrap}.quiz-section{margin-top:24px;padding-top:20px;border-top:1px solid var(--border)}.quiz-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.quiz-header h3{font-size:18px;color:var(--accent)}.quiz-count{font-size:12px;color:var(--text-muted);background:var(--bg-input);padding:3px 10px;border-radius:4px}.quiz-questions{display:flex;flex-direction:column;gap:16px}.quiz-question{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);padding:14px;transition:border-color .2s}.quiz-question.correct{border-color:var(--success)}.quiz-question.wrong{border-color:var(--danger)}.quiz-question-header{display:flex;align-items:flex-start;gap:8px;margin-bottom:12px}.quiz-question-num{background:var(--primary);color:#fff;padding:2px 8px;border-radius:4px;font-size:12px;font-weight:600;flex-shrink:0}.quiz-question-text{flex:1;font-weight:500}.quiz-question-mark{font-size:18px;flex-shrink:0}.quiz-choices{display:flex;flex-direction:column;gap:6px}.quiz-choice{display:flex;align-items:center;gap:10px;padding:10px 12px;background:var(--bg);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:14px;cursor:pointer;text-align:left;transition:all .15s}.quiz-choice:hover:not(:disabled){border-color:var(--primary-light);background:var(--bg-card)}.quiz-choice.selected{border-color:var(--primary);background:#6c5ce726}.quiz-choice.correct-answer{border-color:var(--success);background:#00b89426}.quiz-choice.wrong-answer{border-color:var(--danger);background:#e74c3c26}.quiz-choice:disabled{cursor:default}.quiz-choice-letter{font-weight:600;color:var(--text-muted);flex-shrink:0}.quiz-choice-text{flex:1}.quiz-explanation{margin-top:10px;padding:10px 12px;background:var(--bg);border-radius:6px;font-size:13px;color:var(--text-muted);border-left:3px solid var(--accent)}.quiz-actions{display:flex;align-items:center;gap:16px;margin-top:20px;flex-wrap:wrap}.quiz-score{font-size:16px;font-weight:600;padding:10px 18px;border-radius:8px;display:inline-flex;align-items:center;gap:12px}.quiz-score.score-high{background:#00b89433;color:var(--success)}.quiz-score.score-mid{background:#6c5ce733;color:var(--primary-light)}.quiz-score.score-low{background:#e74c3c33;color:var(--danger)}.quiz-score-msg{font-size:13px;font-weight:400;opacity:.85}@media(max-width:900px){.pricing-grid{grid-template-columns:1fr;max-width:480px}}@media(max-width:600px){.options-row,.url-input-row{flex-direction:column}.nav-links{gap:10px;font-size:12px}.quiz-question-text{font-size:14px}.quiz-choice{font-size:13px}.account-button{padding:6px}.account-button:not(.account-button-inline) .account-button-info{display:none}.actions-row{flex-direction:column;align-items:stretch}.actions-row .account-button-inline{align-self:flex-start}.actions-row-main,.btn-quiz{width:100%}.pricing-cycle-toggle{width:100%;max-width:320px}.pricing-cycle-toggle button{flex:1;padding:8px 12px;font-size:13px}.account-modal{max-height:100vh;border-radius:0;max-width:100vw}.account-modal-backdrop{padding:0}}