:root{--primary:#2563eb;--primary-dark:#1d4ed8;--secondary:#64748b;--background:#f8fafc;--white:#ffffff;--gray-50:#f9fafb;--gray-100:#f3f4f6;--gray-200:#e5e7eb;--gray-300:#d1d5db;--gray-500:#6b7280;--gray-700:#374151;--gray-900:#111827;--danger:#ef4444;--success:#22c55e}*{box-sizing:border-box;margin:0;padding:0;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}body{background-color:var(--background);color:var(--gray-900);min-height:100vh;display:flex;flex-direction:column}.container{max-width:1200px;margin:0 auto;padding:0 20px;width:100%}.header{background-color:var(--white);box-shadow:0 2px 4px rgba(0,0,0,.05);padding:16px 0}.header-content{display:flex;align-items:center;justify-content:space-between}.logo{font-size:24px;font-weight:700;color:var(--primary);text-decoration:none}.logo span{color:var(--gray-700)}.card{background-color:var(--white);border-radius:8px;box-shadow:0 4px 6px rgba(0,0,0,.05);overflow:hidden;width:100%;max-width:420px}.card-wide{max-width:820px}.card-header{background-color:var(--primary);color:var(--white);padding:20px;text-align:center;font-size:18px;font-weight:600}.card-body{padding:24px}.tabs{display:flex;border-bottom:1px solid var(--gray-200);margin-bottom:24px}.tab{padding:12px 24px;cursor:pointer;font-weight:500;color:var(--gray-500);border-bottom:2px solid transparent;transition:color .2s ease,border-color .2s ease}.tab.active{color:var(--primary);border-bottom:2px solid var(--primary)}.form-group{margin-bottom:20px}.form-label{margin-bottom:8px;color:var(--gray-700)}.form-control,.form-select{width:100%;padding:12px 16px;border:1px solid var(--gray-300);border-radius:6px;font-size:16px;transition:border-color .15s ease-in-out,box-shadow .15s ease-in-out}.form-control:focus,.form-select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px rgba(37,99,235,.2)}.form-select{background-color:var(--white);-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;background-size:16px}.language-select{width:auto;padding:8px 32px 8px 12px}.btn{display:inline-block;font-weight:500;text-align:center;white-space:nowrap;border:1px solid transparent;padding:12px 20px;font-size:16px;border-radius:6px;transition:all .15s ease-in-out;cursor:pointer}.btn-primary{color:var(--white);background-color:var(--primary);border-color:var(--primary)}.btn-primary:hover{background-color:var(--primary-dark);border-color:var(--primary-dark)}.btn-block{display:block;width:100%}.form-input{width:100%;padding:14px 16px;border:1px solid #d1d5db;border-radius:10px;font-size:1rem;background-color:#fff;transition:border-color .2s ease,box-shadow .2s ease}.form-input:focus{outline:none;border-color:#2563eb;box-shadow:0 0 0 3px rgba(37,99,235,.25)}.form-label{font-weight:500;margin-bottom:6px;display:block;color:#374151}.text-center{text-align:center}.mt-4{margin-top:16px}.text-sm{font-size:14px}.text-muted{color:var(--gray-500)}.link{color:var(--primary);text-decoration:none}.link:hover{text-decoration:underline}.two-columns{display:flex;gap:16px}.two-columns>div{flex:1 1}.footer{background-color:var(--white);padding:24px 0;border-top:1px solid var(--gray-200);text-align:center;color:var(--gray-500);font-size:14px}@media (max-width:768px){.two-columns{flex-direction:column}.card-wide{max-width:420px}}