*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{color:#333;background:#f4f6f9;min-height:100vh;font-family:Noto Sans SC,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.6}#app{flex-direction:column;align-items:center;min-height:100vh;display:flex}.app-wrapper{flex-direction:column;align-items:center;width:100%;display:flex}.nav-tab-container{background:#fff;border-bottom:1px solid #e2e8f0;justify-content:center;gap:8px;width:100%;max-width:900px;padding:12px 16px;display:flex}.nav-tab-btn{color:#555;cursor:pointer;background:0 0;border:1px solid #0000;border-radius:8px;padding:10px 20px;font-family:inherit;font-size:15px;font-weight:500;transition:background-color .2s,color .2s}.nav-tab-btn:hover{color:#1a3c5e;background:#f1f5f9}.nav-tab-btn.active{color:#fff;background:#1a3c5e;font-weight:600}.banner-wrapper{width:100%;max-width:900px;margin:0 auto}.banner{width:100%;height:auto;display:block}.query-container,.session-chair-container,.certificate-container{flex-direction:column;align-items:center;width:100%;display:flex}.query-card{text-align:center;background:#fff;width:100%;max-width:900px;padding:48px 40px}.query-card .logo{width:180px;height:auto;margin-bottom:20px}.query-card h1{color:#1a3c5e;letter-spacing:-.5px;margin-bottom:8px;font-size:24px;font-weight:700}.query-card .subtitle{color:#666;margin-bottom:32px;font-size:14px;font-weight:400}.query-card .input-group{gap:12px;margin-bottom:16px;display:flex}.query-card input[type=text]{background:#fafbfc;border:1px solid #d1d5db;border-radius:8px;outline:none;flex:1;padding:14px 18px;font-family:inherit;font-size:16px;transition:border-color .2s,box-shadow .2s}.query-card input[type=text]:focus{background:#fff;border-color:#1a3c5e;box-shadow:0 0 0 3px #1a3c5e1f}.query-card .error-msg{color:#dc2626;text-align:left;margin-bottom:8px;font-size:14px;font-weight:500}.btn{cursor:pointer;white-space:nowrap;border:1px solid #0000;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:14px 28px;font-family:inherit;font-size:15px;font-weight:600;transition:background-color .2s,color .2s,transform .1s;display:inline-flex}.btn-sm{padding:8px 18px;font-size:13px;font-weight:600}.btn-primary{color:#fff;background:#1a3c5e}.btn-primary:hover{background:#15304d}.btn-primary:disabled{cursor:not-allowed;background:#94a3b8;transform:none}.btn-outline{color:#1a3c5e;background:#fff;border:1px solid #1a3c5e}.btn-outline:hover{background:#f1f5f9}.result-card{text-align:center;background:#fff;width:100%;max-width:900px;padding:48px 40px}.result-header .result-logo{width:140px;height:auto;margin-bottom:12px}.result-header h2{color:#1a3c5e;letter-spacing:-.5px;margin-bottom:4px;font-size:22px;font-weight:700}.result-header .result-subtitle{color:#666;margin-bottom:28px;font-size:14px;font-weight:400}.result-info{text-align:left;background:#f8fafc;border:1px solid #e2e8f0;border-radius:8px;margin-bottom:28px;padding:20px}.info-row{border-bottom:1px solid #e2e8f0;justify-content:space-between;align-items:center;padding:12px 0;display:flex}.info-row:last-child{border-bottom:none}.info-label{color:#64748b;font-size:14px;font-weight:500}.info-value{color:#1a3c5e;font-size:14px;font-weight:600}.result-actions{flex-wrap:wrap;justify-content:center;gap:12px;display:flex}.session-results-wrapper{flex-direction:column;gap:24px;margin-bottom:32px;display:flex}.session-item-card{text-align:left;background:#fff;border:1px solid #e2e8f0;border-radius:8px;padding:20px}.session-item-header{border-bottom:1px solid #e2e8f0;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:16px;padding-bottom:12px;display:flex}.session-item-info{align-items:center;gap:12px;display:flex}.session-item-name{color:#1a3c5e;font-size:18px;font-weight:700}.session-item-badge{color:#475569;background:#e2e8f0;border-radius:4px;padding:3px 10px;font-size:12px;font-weight:500;display:inline-block}.session-item-actions{align-items:center;gap:10px;display:flex}.session-preview-box{background:#f8fafc;border:1px solid #edf2f7;border-radius:6px;justify-content:center;align-items:center;width:100%;padding:12px;display:flex;overflow:hidden}.session-preview-img{border-radius:4px;max-width:100%;height:auto;display:block;box-shadow:0 2px 8px #00000014}.session-bottom-actions{margin-top:16px}.spinner{border:2px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:16px;height:16px;animation:.6s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}@media (width<=640px){.nav-tab-container{flex-direction:column;padding:8px 12px}.nav-tab-btn{text-align:center;width:100%;padding:8px 12px;font-size:14px}.query-card{padding:28px 16px}.query-card h1{font-size:20px}.query-card .input-group{flex-direction:column}.result-card{padding:28px 16px}.result-header .result-logo{width:120px}.session-item-header{flex-direction:column;align-items:flex-start}.session-item-actions{justify-content:flex-start;width:100%}}