:root{--bg-color: #F9F9F9;--primary-color: #003366;--error-color: #D32F2F;--text-primary: #1A1A1A;--text-secondary: #555555;--white: #FFFFFF;--border-color: #E0E0E0;--focus-border: 3px solid var(--primary-color);--status-complete: #34C759;--status-partial: #D97706;--status-unanswered: #FF3B30}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Verdana,Geneva,Tahoma,sans-serif;background-color:#ececec;color:var(--text-primary);display:flex;justify-content:center;min-height:100vh}.app-container{width:100%;max-width:430px;background-color:var(--bg-color);display:flex;flex-direction:column;height:100vh;height:100dvh;position:relative;box-shadow:0 0 20px #0000001a;overflow:hidden}h1,h2,.heading{font-size:22px;font-weight:700;line-height:1.2}.message-bubble{font-size:19px;font-weight:400;line-height:1.6}body,input{font-size:18px;font-weight:400;line-height:1.5}.persistent-label{font-size:16px;font-weight:700;line-height:1.4}.drawer-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:#00000080;z-index:40;opacity:0;pointer-events:none;transition:opacity .3s ease}.drawer-overlay.active{opacity:1;pointer-events:auto}.side-drawer{position:absolute;top:0;left:-280px;width:280px;height:100%;background-color:var(--white);z-index:50;box-shadow:2px 0 10px #0000001a;transition:transform .3s ease;display:flex;flex-direction:column}.side-drawer.open{transform:translate(280px)}.drawer-header{padding:24px 20px;font-size:20px;font-weight:700;border-bottom:1px solid var(--border-color);color:var(--primary-color)}.drawer-list{list-style:none;padding:0;margin:0;overflow-y:auto}.drawer-item{padding:16px 20px;border-bottom:1px solid var(--border-color);display:flex;align-items:center;gap:12px;font-size:16px;font-weight:700;color:var(--text-primary);transition:background-color .2s ease}.drawer-item.active-item{background-color:#0033660d;border-left:4px solid var(--primary-color);padding-left:16px}.status-dot{width:12px;height:12px;border-radius:50%;display:inline-block}.status-dot.complete{background-color:var(--status-complete)}.status-dot.partial{background-color:var(--status-partial)}.status-dot.unanswered{background-color:var(--status-unanswered)}.progress-container{background-color:var(--white);padding:16px 20px;border-bottom:1px solid var(--border-color);display:flex;flex-direction:column;z-index:10}.progress-header{width:100%;display:flex;align-items:center;gap:12px;margin-bottom:8px}.menu-btn{background:none;border:none;width:32px;height:32px;cursor:pointer;color:var(--primary-color);display:flex;align-items:center;justify-content:center}.menu-btn svg{width:24px;height:24px;fill:currentColor}.progress-bar-track{width:100%;height:16px;background-color:#e0e0e0;border-radius:8px;overflow:hidden;display:flex;margin-bottom:12px}.progress-segment{height:100%;transition:width .3s ease}.progress-segment.complete{background-color:var(--status-complete)}.progress-segment.partial{background-color:var(--status-partial)}.progress-segment.unanswered{background-color:var(--status-unanswered)}.progress-text{font-size:14px;color:var(--text-primary);font-weight:700}.progress-legend{display:flex;justify-content:space-between;font-size:12px;color:var(--text-secondary)}.legend-item{display:flex;align-items:center;gap:6px}.trust-badge{display:flex;align-items:center;justify-content:center;gap:8px;padding:12px;background-color:#0033660d;font-size:14px;font-weight:700;color:var(--primary-color);border-bottom:1px solid var(--border-color)}.trust-badge .icon{width:16px;height:16px}.chat-area{flex:1;overflow-y:auto;padding:24px 20px;display:flex;flex-direction:column;gap:24px}.message{display:flex;gap:12px;align-items:flex-start}.avatar-container{position:relative;width:40px;height:40px;flex-shrink:0}.avatar{width:100%;height:100%;border-radius:50%;position:relative;z-index:2}.avatar-pulse{position:absolute;top:0;left:0;right:0;bottom:0;background-color:var(--primary-color);border-radius:50%;z-index:1;opacity:0;transform:scale(1);animation:pulse 2s infinite cubic-bezier(.4,0,.2,1)}@keyframes pulse{0%{transform:scale(1);opacity:.5}to{transform:scale(1.5);opacity:0}}.message-bubble{background-color:var(--white);padding:16px;border-radius:12px;border:1px solid var(--border-color);color:var(--text-primary);box-shadow:0 2px 4px #00000005;max-width:85%}.user-message{flex-direction:row-reverse}.user-message .message-bubble{background-color:#e6f0fa;border-color:#c0d8f0;color:var(--primary-color)}.input-area{background-color:var(--white);padding:20px;border-top:1px solid var(--border-color);display:flex;flex-direction:column;gap:16px;z-index:10}.input-group{display:flex;flex-direction:column;gap:8px}.persistent-label{color:var(--text-primary)}.input-wrapper{position:relative;width:100%}.user-input{width:100%;min-height:56px;padding:12px 64px 12px 16px;border:1px solid #999;border-radius:8px;background-color:var(--white);outline:none;transition:border .2s ease;-webkit-appearance:none}.user-input:focus{border:var(--focus-border)}.user-input.error{border:3px solid var(--error-color)}.voice-btn{position:absolute;right:4px;top:50%;transform:translateY(-50%);background:none;border:none;width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--primary-color);transition:all .2s ease}.voice-btn .voice-icon{width:28px;height:28px}.voice-btn.recording{color:var(--error-color);background-color:#d32f2f1a;animation:voicePulse 1.5s infinite cubic-bezier(.4,0,.2,1)}@keyframes voicePulse{0%{box-shadow:0 0 #d32f2f66}70%{box-shadow:0 0 0 10px #d32f2f00}to{box-shadow:0 0 #d32f2f00}}.primary-action{width:100%;min-height:56px;background-color:var(--primary-color);color:var(--white);border:none;border-radius:8px;font-size:18px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background-color .2s ease,color .2s ease}.primary-action:active:not(:disabled){background-color:#024}.primary-action:disabled{background-color:#ccc;color:#666;cursor:not-allowed}.icon-solid{fill:currentColor}.welcome-screen{display:flex;flex-direction:column;height:100%;background-color:var(--bg-color)}.welcome-content{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:32px 24px;text-align:center;gap:24px}.welcome-avatar-container{width:100px;height:100px;margin-bottom:8px}.welcome-avatar{width:100%;height:100%;border-radius:50%;box-shadow:0 4px 12px #0000001a}.welcome-title{color:var(--primary-color)}.welcome-description{color:var(--text-primary);font-size:18px;line-height:1.6}.welcome-footer{padding:24px;background-color:var(--white);border-top:1px solid var(--border-color)}.welcome-trust{width:100%}.privacy-toggle{margin-top:12px;border:1px solid var(--border-color);border-radius:8px;background-color:var(--bg-color);overflow:hidden}.privacy-header{width:100%;padding:12px;display:flex;justify-content:space-between;align-items:center;background:none;border:none;font-weight:700;color:var(--primary-color);cursor:pointer;text-align:left}.privacy-content{padding:12px;border-top:1px solid var(--border-color);font-size:16px;color:var(--text-primary)}.signature-pad-container{margin-top:12px;display:flex;flex-direction:column;gap:8px}.signature-input{width:100%;padding:12px;border:1px solid var(--primary-color);border-radius:8px;font-size:18px;font-family:Georgia,serif;outline:none}