* {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }

    body {
        font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
        background: #f8fafc;
        min-height: 100vh;
    }

    /* Header */
    .header {
        background: white;
        border-bottom: 1px solid #e2e8f0;
        padding: 1rem 0;
    }

    .header-content {
        display: flex;
        justify-content: space-between;
        align-items: center;
        max-width: 1200px;
        margin: 0 auto;
        padding: 0 20px;
    }

    .logo {
        display: flex;
        align-items: center;
        font-size: 1.5rem;
        font-weight: bold;
        color: #2563eb;
    }

    .logo-icon {
        background: #2563eb;
        color: white;
        width: 40px;
        height: 40px;
        border-radius: 8px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 12px;
    }

    .nav-links {
        display: flex;
        gap: 2rem;
        align-items: center;
    }

    .nav-links a {
        text-decoration: none;
        color: #64748b;
        font-weight: 500;
        transition: color 0.3s;
    }

    .nav-links a:hover {
        color: #2563eb;
    }

    .btn-nav {
        padding: 8px 16px;
        border-radius: 6px;
        font-weight: 500;
        border: none;
        cursor: pointer;
        text-decoration: none;
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        transition: all 0.2s;
    }

    .btn-nav.btn-primary {
        background: #2563eb;
        color: white;
    }

    .btn-nav.btn-secondary {
        background: #f1f5f9;
        color: #475569;
    }

    /* Main Content */
    .main-content {
        display: flex;
        align-items: center;
        justify-content: center;
        min-height: calc(100vh - 80px);
        padding: 2rem 0;
    }

    .form-container {
        background: white;
        border-radius: 16px;
        padding: 2rem;
        box-shadow: 0 20px 25px rgba(0,0,0,0.1);
        width: 100%;
        max-width: 400px;
        margin: 1rem;
    }

    .form-header {
        text-align: center;
        margin-bottom: 2rem;
    }

    .form-title {
        font-size: 1.5rem;
        font-weight: bold;
        color: #1e293b;
        margin-bottom: 0.5rem;
    }

    .form-subtitle {
        color: #64748b;
    }

    .form-group {
        margin-bottom: 1rem;
    }

    .form-label {
        display: block;
        font-weight: 500;
        margin-bottom: 0.5rem;
        color: #374151;
    }

    .form-input {
        width: 100%;
        padding: 12px;
        border: 1px solid #d1d5db;
        border-radius: 6px;
        font-size: 1rem;
        transition: all 0.2s;
    }

    .form-input:focus {
        outline: none;
        border-color: #2563eb;
        box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    }

    .btn {
        width: 100%;
        padding: 12px;
        border-radius: 6px;
        font-weight: 600;
        border: none;
        cursor: pointer;
        font-size: 1rem;
        transition: all 0.2s;
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 0.5rem;
    }

    .btn-primary {
        background: #2563eb;
        color: white;
    }

    .btn-primary:hover {
        background: #1d4ed8;
    }

    .btn-primary:disabled {
        background: #94a3b8;
        cursor: not-allowed;
    }

    .form-footer {
        text-align: center;
        margin-top: 1.5rem;
        padding-top: 1.5rem;
        border-top: 1px solid #e5e7eb;
    }

    .link-button {
        background: none;
        border: none;
        color: #2563eb;
        cursor: pointer;
        text-decoration: underline;
        font-size: 0.875rem;
    }

    .link-button:hover {
        color: #1d4ed8;
    }

    .alert {
        padding: 12px;
        border-radius: 6px;
        margin-bottom: 1rem;
        font-size: 0.875rem;
    }

    .alert-error {
        background: #fef2f2;
        color: #dc2626;
        border: 1px solid #fecaca;
    }

    .alert-success {
        background: #f0fdf4;
        color: #16a34a;
        border: 1px solid #bbf7d0;
    }

    .loading {
        display: inline-block;
        width: 16px;
        height: 16px;
        border: 2px solid #ffffff;
        border-radius: 50%;
        border-top-color: transparent;
        animation: spin 1s ease-in-out infinite;
    }

    @keyframes spin {
        to { transform: rotate(360deg); }
    }

    .name-fields {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
    }

    /* Hidden by default */
    .hidden {
        display: none !important;
    }

    /* Responsive */
    @media (max-width: 768px) {
        .nav-links {
            display: none;
        }

        .name-fields {
            grid-template-columns: 1fr;
        }
    }