@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@500;600;700&display=swap";:root{--brand: #3B82B6;--brand-alt: #00B7C3;--primary: #F97316;--primary-hover: #EA580C;--secondary: #1E3A5F;--secondary-light: #2D4A6F;--text-primary: #1E3A5F;--text-secondary: #5A7184;--text-muted: #94A3B8;--text-white: #FFFFFF;--bg-main: #F8FAFC;--bg-card: #FFFFFF;--bg-subtle: #F1F5F9;--bg-chat: #F8FAFC;--border: #E2E8F0;--border-light: #F1F5F9;--shadow-sm: 0 1px 2px rgba(30, 58, 95, .05);--shadow: 0 4px 6px -1px rgba(30, 58, 95, .1), 0 2px 4px -2px rgba(30, 58, 95, .1);--shadow-lg: 0 10px 15px -3px rgba(30, 58, 95, .1), 0 4px 6px -4px rgba(30, 58, 95, .1);--radius: 12px;--radius-sm: 8px;--radius-full: 9999px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Inter,system-ui,-apple-system,sans-serif;font-size:18px;background:linear-gradient(135deg,var(--brand) 0%,var(--brand-alt) 100%);min-height:100vh;display:flex;justify-content:center;align-items:center;padding:1rem}#app{width:100%;max-width:520px;height:90vh;max-height:850px;background:var(--bg-card);border-radius:var(--radius);box-shadow:var(--shadow-lg);display:flex;flex-direction:column;overflow:hidden;border:1px solid rgba(255,255,255,.2)}header{background:linear-gradient(135deg,var(--brand) 0%,var(--brand-alt) 100%);color:var(--text-white);padding:1rem 1.25rem;display:flex;justify-content:space-between;align-items:center}header h1{font-family:Plus Jakarta Sans,sans-serif;font-weight:600;font-size:1rem;letter-spacing:-.01em}header button{background:#fff3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.3);color:var(--text-white);font-size:.75rem;padding:.4rem .875rem;border-radius:var(--radius-full);cursor:pointer;transition:all .2s;font-weight:500}header button:hover{background:#ffffff4d;transform:translateY(-1px)}#chat-container{flex:1;overflow-y:auto;padding:1rem;display:flex;flex-direction:column;gap:.75rem;background:var(--bg-chat)}.message{max-width:85%;padding:.875rem 1rem;border-radius:var(--radius);line-height:1.5;position:relative;animation:fadeIn .3s ease-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.message strong{display:block;font-size:.75rem;font-weight:600;margin-bottom:.25rem}.message>div:first-of-type{font-size:.9375rem}.message.student{align-self:flex-end;background:var(--brand);color:var(--text-white);border-bottom-right-radius:4px;box-shadow:var(--shadow)}.message.student strong{color:#fffc}.message.student>div:first-of-type{color:var(--text-white)}.message.patient{align-self:flex-start;background:var(--bg-card);border:1px solid var(--border);border-bottom-left-radius:4px;box-shadow:var(--shadow-sm);color:var(--text-primary)}.message.patient strong{color:var(--text-secondary)}.nonverbal{font-style:italic;color:var(--text-secondary);background:var(--bg-subtle);padding:.5rem .75rem;border-radius:6px;margin-bottom:.5rem;font-size:.875rem;border-left:3px solid var(--brand-alt)}.message.student .nonverbal{background:#ffffff26;color:#ffffffe6;border-left-color:#ffffff80}.message-content{display:flex;flex-direction:column;gap:.25rem}.message-content>span{display:block}.message.meta{align-self:center;background:#fef3c7;border:1px solid #FCD34D;font-style:italic;font-size:.8125rem;color:#92400e;max-width:90%;border-radius:var(--radius-sm)}.message.system{align-self:center;background:var(--bg-subtle);border:1px solid var(--border);font-size:.8125rem;color:var(--brand);max-width:90%;text-align:center;border-radius:var(--radius-sm);font-weight:500}.message-info{font-size:.6875rem;margin-top:.375rem;opacity:.6}#input-area{padding:1rem;background:var(--bg-card);border-top:1px solid var(--border);display:flex;gap:.5rem}#input-area input{flex:1;padding:.75rem 1rem;border:1px solid var(--border);border-radius:var(--radius-full);outline:none;font-size:.9375rem;font-family:inherit;transition:all .2s;background:var(--bg-subtle);color:var(--text-primary)}#input-area input:focus{border-color:var(--brand);box-shadow:0 0 0 3px #3b82b626;background:var(--bg-card)}#input-area input::placeholder{color:var(--text-muted)}#input-area button{background:var(--primary);color:var(--text-white);border:none;padding:.75rem 1.25rem;border-radius:var(--radius-full);cursor:pointer;transition:all .2s;font-weight:600;font-size:.875rem}#input-area button:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:var(--shadow)}#input-area #hint-btn{background:#f59e0b;padding:0 1rem;font-size:1.1rem;min-width:50px}#input-area #hint-btn:hover{background:#d97706}#input-area #hint-btn:disabled{background:var(--bg-subtle);color:var(--text-muted);cursor:wait;box-shadow:none;transform:none}.scenario-selector{padding:1.5rem;overflow-y:auto;flex:1;background:var(--bg-main)}.settings-panel{background:var(--bg-card);padding:1.5rem;border-radius:var(--radius);border:1px solid var(--border);margin-bottom:1.5rem;box-shadow:var(--shadow-sm)}.settings-panel h3{font-family:Plus Jakarta Sans,Inter,sans-serif;font-size:1.125rem;font-weight:600;color:var(--text-primary);margin-bottom:1.25rem;display:flex;align-items:center;gap:.5rem}.settings-panel h3:before{content:"⚙️"}.setting-group{margin-bottom:1rem;display:flex;flex-direction:column;gap:.375rem}.setting-group:last-of-type{margin-bottom:0}.setting-group>label{font-weight:600;font-size:.8125rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.03em}.setting-group select,.setting-group input[type=text],.setting-group textarea{padding:.625rem .875rem;border-radius:var(--radius-sm);border:1px solid var(--border);font-size:.875rem;font-family:inherit;background:var(--bg-card);color:var(--text-primary);transition:all .2s}.setting-group select:focus,.setting-group input:focus,.setting-group textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px #3b82b626}.setting-group select:hover,.setting-group input:hover,.setting-group textarea:hover{border-color:var(--primary)}.setting-group textarea{resize:vertical;min-height:70px}.checkbox-group{display:grid;grid-template-columns:repeat(3,1fr);gap:.5rem;background:var(--bg-subtle);padding:.75rem;border-radius:var(--radius-sm);border:1px solid var(--border)}.checkbox-group label{font-weight:500;font-size:.75rem;display:flex;align-items:center;gap:.375rem;padding:.375rem .5rem;border-radius:6px;cursor:pointer;transition:all .15s;color:var(--text-secondary)}.checkbox-group label:hover{background:#3b82b61a;color:var(--brand)}.checkbox-group input[type=checkbox]{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:18px;height:18px;background:#fff;border:2px solid var(--border);border-radius:4px;cursor:pointer;position:relative;transition:all .15s}.checkbox-group input[type=checkbox]:checked{background:var(--primary);border-color:var(--primary)}.checkbox-group input[type=checkbox]:checked:after{content:"✓";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:#fff;font-size:12px;font-weight:700}.checkbox-group input[type=checkbox]:hover{border-color:var(--primary)}#start-btn{width:100%;margin-top:1.5rem;padding:.875rem 1.5rem;background:var(--primary);color:var(--text-white);border:none;border-radius:var(--radius-sm);font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s;box-shadow:var(--shadow)}#start-btn:hover{background:var(--primary-hover);transform:translateY(-2px);box-shadow:var(--shadow-lg)}#start-btn.btn-disabled{background:var(--border);color:var(--text-muted);opacity:.8;cursor:not-allowed;box-shadow:none}#start-btn.btn-disabled:hover{transform:none;box-shadow:none;background:var(--border)}.scenario-selector hr{border:none;height:1px;background:var(--border);margin:1.5rem 0}.scenario-selector>h3{font-size:.9375rem;font-weight:600;color:var(--text-secondary);margin-bottom:.875rem}.scenario-grid{display:grid;grid-template-columns:1fr;gap:.75rem}.scenario-card{border:1px solid var(--border);padding:1rem 1.25rem;border-radius:var(--radius-sm);cursor:pointer;background:var(--bg-card);transition:all .2s;box-shadow:var(--shadow-sm)}.scenario-card:hover{border-color:var(--brand);background:#3b82b60a;transform:translateY(-2px);box-shadow:var(--shadow)}.scenario-card strong{display:block;font-size:.9375rem;font-weight:600;color:var(--text-primary);margin-bottom:.25rem}.scenario-card small{font-size:.8125rem;color:var(--text-secondary);line-height:1.5}@media(max-width:520px){body{padding:0;background:var(--bg-main)}#app{height:100vh;max-height:none;border-radius:0;box-shadow:none}.checkbox-group{grid-template-columns:repeat(2,1fr)}.scenario-selector,.settings-panel{padding:1rem}}#chat-container::-webkit-scrollbar,.scenario-selector::-webkit-scrollbar{width:6px}#chat-container::-webkit-scrollbar-track,.scenario-selector::-webkit-scrollbar-track{background:transparent}#chat-container::-webkit-scrollbar-thumb,.scenario-selector::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}#chat-container::-webkit-scrollbar-thumb:hover,.scenario-selector::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}