:root {
            --primary-color: #3E67A3;
            --secondary-color: #03A180;
            --success-color: #2ecc71;
            --warning-color: #f39c12;
            --danger-color: #e74c3c;
        }

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

        body {
            font-family: 'Tajawal', sans-serif;
            background: linear-gradient(145deg, #f6f9fc 0%, #eef2f7 100%);
            min-height: 100vh;
            margin: 0;
            padding: 0;
        }

        .volunteer-container {
            width: 100%;
            max-width: 600px;
            margin: 50px auto;
            padding: 0 15px;
        }

        .volunteer-card {
            background: #ffffff;
            border-radius: 32px;
            box-shadow: 0 25px 50px -12px rgba(62, 103, 163, 0.15);
            overflow: hidden;
            animation: fadeInUp 0.6s ease;
            border: 1px solid rgba(62, 103, 163, 0.1);
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .volunteer-header {
            background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
            color: white;
            text-align: center;
            padding: 45px 30px;
            position: relative;
            overflow: hidden;
        }

        .volunteer-header::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
            animation: rotate 20s linear infinite;
        }

        @keyframes rotate {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }

        .volunteer-header h1 {
            font-size: 2rem;
            margin-bottom: 12px;
            font-weight: 700;
            letter-spacing: 1px;
            position: relative;
            text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
        }

        .volunteer-header p {
            opacity: 0.95;
            font-size: 1rem;
            font-weight: 300;
            position: relative;
        }

        .volunteer-body {
            padding: 40px 35px;
            background: #ffffff;
        }

        .form-group {
            margin-bottom: 24px;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #1e293b;
            font-size: 0.95rem;
        }

        .form-group label .required {
            color: var(--danger-color);
            margin-right: 4px;
        }

        .input-with-icon {
            position: relative;
        }

        .input-with-icon i {
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%);
            color: #94a3b8;
            font-size: 1.1rem;
            transition: color 0.3s ease;
        }

        .input-with-icon select {
            width: 100%;
            padding: 16px 50px 16px 20px;
            border: 2px solid #e2e8f0;
            border-radius: 16px;
            font-size: 1rem;
            font-family: 'Tajawal', sans-serif;
            transition: all 0.3s ease;
            background: #f8fafd;
            cursor: pointer;
            appearance: none;
        }

        .input-with-icon input {
            width: 100%;
            padding: 16px 50px 16px 20px;
            border: 2px solid #e2e8f0;
            border-radius: 16px;
            font-size: 1rem;
            font-family: 'Tajawal', sans-serif;
            transition: all 0.3s ease;
            background: #f8fafd;
        }

        .input-with-icon input:focus,
        .input-with-icon select:focus {
            border-color: var(--primary-color);
            outline: none;
            background: #ffffff;
            box-shadow: 0 0 0 4px rgba(62, 103, 163, 0.1);
        }

        .input-with-icon input:focus + i,
        .input-with-icon select:focus + i {
            color: var(--primary-color);
        }

        /* Style for radio buttons */
        .radio-group {
            display: flex;
            gap: 30px;
            padding: 12px 0;
            flex-wrap: wrap;
        }

        .radio-option {
            display: flex;
            align-items: center;
            gap: 10px;
            cursor: pointer;
            padding: 10px 20px;
            border-radius: 12px;
            background: #f8fafd;
            transition: all 0.3s ease;
            border: 2px solid transparent;
        }

        .radio-option:hover {
            background: #f1f5f9;
            border-color: var(--primary-color);
        }

        .radio-option input[type="radio"] {
            width: 18px;
            height: 18px;
            cursor: pointer;
            accent-color: var(--primary-color);
            margin: 0;
        }

        .radio-option span {
            font-size: 1rem;
            font-weight: 500;
            color: #1e293b;
        }

        .btn {
            width: 100%;
            padding: 16px;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
            border: none;
            border-radius: 16px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            font-family: 'Tajawal', sans-serif;
            position: relative;
            overflow: hidden;
        }

        .btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
            transition: left 0.5s;
        }

        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 20px 30px -10px var(--primary-color);
        }

        .btn:hover::before {
            left: 100%;
        }

        .alert {
            padding: 16px 20px;
            border-radius: 16px;
            margin-bottom: 30px;
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.95rem;
            animation: slideIn 0.4s ease;
        }

        @keyframes slideIn {
            from {
                opacity: 0;
                transform: translateX(-20px);
            }
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }

        .alert-success {
            background: #ecfdf5;
            color: #065f46;
            border: 1px solid #a7f3d0;
        }

        .alert-error {
            background: #fef2f2;
            color: #991b1b;
            border: 1px solid #fecaca;
        }

        .alert i {
            font-size: 1.2rem;
        }

        .info-box {
            background: #f0f9ff;
            padding: 16px 20px;
            border-radius: 16px;
            margin-bottom: 30px;
            border-right: 4px solid var(--primary-color);
            display: flex;
            align-items: center;
            gap: 12px;
            color: #1e40af;
            font-size: 0.9rem;
        }

        .info-box i {
            font-size: 1.2rem;
            color: var(--primary-color);
        }

        /* style for volunteer field hint */
        .field-hint {
            font-size: 0.8rem;
            color: #64748b;
            margin-top: 5px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .field-hint span {
            background: #f1f5f9;
            padding: 4px 10px;
            border-radius: 20px;
            font-size: 0.75rem;
            color: var(--primary-color);
        }

        @media (max-width: 480px) {
            .volunteer-body { padding: 30px 20px; }
            .volunteer-header { padding: 35px 20px; }
            .volunteer-header h1 { font-size: 1.8rem; }
            .input-with-icon input,
            .input-with-icon select {
                padding: 14px 45px 14px 16px;
            }
            .radio-group {
                gap: 15px;
            }
            .radio-option {
                padding: 8px 16px;
            }
        }