body {
            background: #f4f6f9;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
        }

        /* RTL support for Arabic */
        html[lang="ar"] body {
            direction: rtl;
            text-align: right;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        .card {
            border: none;
            border-radius: 0.75rem;
            box-shadow: 0 0.75rem 2rem rgba(0, 0, 0, 0.08);
            background: #fff;
            animation: fadeIn 0.5s ease-in-out;
        }

        html[lang="ar"] .card {
            text-align: right;
        }

        .card-header {
            border-bottom: none;
            background: transparent;
            text-align: center;
            margin-bottom: 0.5rem;
        }

        html[lang="ar"] .card-header {
            text-align: center;
        }

        .card-header h3 {
            font-weight: 600;
            color: #2c3e50;
        }

        .form-control {
            border-radius: 0.5rem;
            padding: 0.65rem 1rem;
            font-size: 0.95rem;
        }

        html[lang="ar"] .form-control {
            text-align: right;
        }

        .form-label {
            font-weight: 500;
            color: #495057;
        }

        html[lang="ar"] .bi {
            margin-left: 0.5rem;
            margin-right: 0 !important;
        }

        .btn-primary {
            border-radius: 0.5rem;
            padding: 0.65rem;
            font-weight: 600;
            background-color: #2c3e50;
            border: none;
            transition: all 0.3s ease;
        }

        .btn-primary:hover {
            background-color: #1a252f;
            transform: translateY(-1px);
            box-shadow: 0 0.5rem 1rem rgba(44, 62, 80, 0.2);
        }

        .text-muted a {
            text-decoration: none;
            font-weight: 500;
        }

        .text-muted a:hover {
            text-decoration: underline;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(15px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* RTL-specific adjustments */
        html[lang="ar"] .me-1 {
            margin-right: 0 !important;
            margin-left: 0.25rem !important;
        }

        html[lang="ar"] .me-2 {
            margin-right: 0 !important;
            margin-left: 0.5rem !important;
        }

        html[lang="ar"] .ms-2 {
            margin-left: 0 !important;
            margin-right: 0.5rem !important;
        }

        html[lang="ar"] .text-start {
            text-align: right !important;
        }

        html[lang="ar"] .text-end {
            text-align: left !important;
        }

        html[lang="ar"] .invalid-feedback {
            text-align: right;
        }