:root{--navbar-height:70px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:sans-serif}.navbar{z-index:100;background-color:var(--color-primary);color:#fff;justify-content:space-between;align-items:center;padding:0;display:flex;position:sticky;top:0}.navbar-left{cursor:pointer;align-items:center;gap:16px;display:flex}.navbar-title{font-size:18px;line-height:1.2}.navbar-right{align-items:center;gap:20px;padding:0 24px;display:flex}.navbar-login{cursor:pointer;font-size:18px}.navbar-menu-icon{cursor:pointer;width:32px;height:32px}.navbar-options{align-items:center;gap:12px;display:flex;position:relative}.navbar-options-text{cursor:pointer;font-size:18px}.navbar-dropdown{z-index:100;background-color:#fff;border-radius:6px;min-width:150px;position:absolute;top:45px;right:0;overflow:hidden;box-shadow:0 4px 12px #00000040}.navbar-dropdown-item{color:var(--color-primary);cursor:pointer;padding:12px 16px}.navbar-dropdown-item:hover{background-color:var(--color-primary-tint)}.navbar-dropdown-item.active{background-color:var(--color-primary-tint);box-shadow:inset 3px 0 0 var(--color-primary);font-weight:700}.navbar-logo{width:auto;height:100px;display:block}@media (width<=600px){.navbar{padding:10px 14px}.navbar-title{font-size:14px}.navbar-logo-placeholder{padding:6px 8px;font-size:12px}.navbar-options-text{font-size:15px}}.app{min-height:100vh}:root{--color-primary:#1a2b4a;--color-primary-hover:#24365c;--color-primary-tint:#1a2b4a14;--color-focus-ring:#1a2b4a1a;--color-disabled:#a9b0bd;--color-text:#333;--color-text-secondary:#444;--color-text-muted:#888;--color-surface:#fff;--color-page-bg:#f4f4f4;--color-placeholder:#eee;--color-border:#ccc;--color-divider:#eee;--color-error:#b3261e;--color-error-tint:#b3261e14;--color-success:#2e7d32;--color-text-on-dark:#e8e8e8;--color-text-on-dark-muted:#cfcfcf;--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--radius-pill:24px;--shadow-card:0 4px 20px #00000026;--shadow-popup:0 10px 40px #00000059;--transition-fast:.2s ease}.page{min-height:calc(100vh - var(--navbar-height));background-color:var(--color-page-bg);background-position:50%;background-size:cover;background-attachment:fixed;justify-content:center;align-items:center;padding:40px 20px;display:flex}.card{background-color:var(--color-surface);border-radius:var(--radius-md);box-shadow:var(--shadow-card);flex-direction:column;width:100%;max-width:500px;padding:40px;display:flex}.page-title{color:var(--color-primary);margin-bottom:24px}.page-instructions{color:var(--color-text-secondary);margin-bottom:24px;font-size:15px;line-height:1.5}.btn{border-radius:var(--radius-pill);cursor:pointer;transition:background-color var(--transition-fast), color var(--transition-fast);border:1px solid #0000;justify-content:center;align-items:center;gap:10px;padding:14px 24px;font-size:15px;font-weight:700;display:inline-flex}.btn-primary{background-color:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background-color:var(--color-primary-hover)}.btn-secondary{color:var(--color-primary);border-color:var(--color-primary);background-color:#0000}.btn-secondary:hover:not(:disabled){background-color:var(--color-primary-tint)}.btn-danger{color:var(--color-error);border-color:var(--color-error);background-color:#0000}.btn-danger:hover:not(:disabled){background-color:var(--color-error-tint)}.btn:disabled{background-color:var(--color-disabled);color:#fff;cursor:not-allowed;border-color:#0000}.btn-lg{padding:14px 40px;font-size:16px}.btn-sm{padding:8px 20px;font-size:14px}.btn-row{gap:16px;display:flex}.btn-row>.btn{flex:1}.btn-icon{flex-shrink:0;width:18px;height:18px;display:block}.dropdown{width:100%;margin-bottom:16px}.dropdown label{color:var(--color-primary);margin-bottom:8px;font-size:14px;font-weight:700;display:block}.dropdown select{width:100%;height:48px;color:var(--color-text);border:1px solid var(--color-border);border-radius:var(--radius-pill);cursor:pointer;appearance:none;transition:border-color var(--transition-fast), box-shadow var(--transition-fast);background-color:#fff;background-image:url("data:image/svg+xml,%3csvg%20xmlns='http://www.w3.org/2000/svg'%20width='1em'%20height='1em'%20viewBox='0%200%2024%2024'%3e%3cpath%20d='M0%200h24v24H0z'%20fill='none'%20/%3e%3cpath%20fill='none'%20stroke='%231d2d4d'%20stroke-linecap='round'%20stroke-linejoin='round'%20stroke-width='2'%20d='m4%209l8%208l8-8'%20/%3e%3c/svg%3e");background-position:right 16px center;background-repeat:no-repeat;background-size:16px;outline:none;padding:0 44px 0 18px;font-family:inherit;font-size:15px}.dropdown select:hover{border-color:var(--color-primary)}.dropdown select:focus{border-color:var(--color-primary);box-shadow:0 0 0 2px var(--color-focus-ring)}.spinner-wrapper{background-color:var(--color-surface);border-radius:var(--radius-md);box-shadow:var(--shadow-card);flex-direction:column;align-items:center;gap:12px;padding:32px 40px;display:flex}.spinner-inline{box-shadow:none;background:0 0;padding:0}.spinner-inline .spinner-label{font-size:13px}.spinner{border:4px solid var(--color-divider);border-top-color:var(--color-primary);border-radius:50%;width:40px;height:40px;animation:.8s linear infinite spin}.spinner-label{color:var(--color-text-secondary);font-size:15px}@keyframes spin{to{transform:rotate(360deg)}}@media (prefers-reduced-motion:reduce){.spinner{animation-duration:2s}}.status-message{text-align:center;flex-direction:column;align-items:center;padding:32px 24px;display:flex}.status-code{color:var(--color-primary);margin:0 0 8px;font-size:72px;font-weight:700;line-height:1}.status-title{color:var(--color-primary);margin:0 0 12px;font-size:22px}.status-text{color:var(--color-text-secondary);max-width:420px;margin:0 0 8px;font-size:15px;line-height:1.5}.status-detail{color:var(--color-text-muted);margin:0 0 20px;font-size:13px}.status-message .btn{margin-top:4px}@media (width<=600px){.page{padding:20px 12px}.card{padding:28px 22px}.btn-row{flex-direction:column}}